Merge "Allow users to switch between FE source and DVR source when testing record/descrambling/broadcast"
diff --git a/atrace/1.0/default/AtraceDevice.cpp b/atrace/1.0/default/AtraceDevice.cpp
index 4e82b0a..9f0c4c4 100644
--- a/atrace/1.0/default/AtraceDevice.cpp
+++ b/atrace/1.0/default/AtraceDevice.cpp
@@ -16,6 +16,7 @@
 
 #include <android-base/file.h>
 #include <android-base/logging.h>
+#include <android-base/stringprintf.h>
 
 #include "AtraceDevice.h"
 
@@ -39,15 +40,11 @@
         // gfx
         {
                 "gfx",
-                {"Graphics",
-                 {{"/sys/kernel/debug/tracing/events/mdss/enable", false},
-                  {"/sys/kernel/debug/tracing/events/sde/enable", false},
-                  {"/sys/kernel/debug/tracing/events/mali_systrace/enable", false}}},
+                {"Graphics", {{"mdss", false}, {"sde", false}, {"mali_systrace", false}}},
         },
         {
                 "ion",
-                {"ION allocation",
-                 {{"/sys/kernel/debug/tracing/events/kmem/ion_alloc_buffer_start/enable", false}}},
+                {"ION allocation", {{"kmem/ion_alloc_buffer_start", false}}},
         },
 };
 
@@ -65,16 +62,31 @@
     return Void();
 }
 
+AtraceDevice::AtraceDevice() {
+    struct stat st;
+
+    tracefs_event_root_ = "/sys/kernel/tracing/events/";
+    if (stat(tracefs_event_root_.c_str(), &st) != 0) {
+        tracefs_event_root_ = "/sys/kernel/debug/tracing/events/";
+        CHECK(stat(tracefs_event_root_.c_str(), &st) == 0) << "tracefs must be mounted at either"
+                                                              "/sys/kernel/tracing or "
+                                                              "/sys/kernel/debug/tracing";
+    }
+}
+
 Return<::android::hardware::atrace::V1_0::Status> AtraceDevice::enableCategories(
-    const hidl_vec<hidl_string>& categories) {
+        const hidl_vec<hidl_string>& categories) {
     if (!categories.size()) {
         return Status::ERROR_INVALID_ARGUMENT;
     }
+
     for (auto& c : categories) {
         if (kTracingMap.count(c)) {
             for (auto& p : kTracingMap.at(c).paths) {
-                if (!android::base::WriteStringToFile("1", p.first)) {
-                    LOG(ERROR) << "Failed to enable tracing on: " << p.first;
+                std::string tracefs_event_enable_path = android::base::StringPrintf(
+                        "%s%s/enable", tracefs_event_root_.c_str(), p.first.c_str());
+                if (!android::base::WriteStringToFile("1", tracefs_event_enable_path)) {
+                    LOG(ERROR) << "Failed to enable tracing on: " << tracefs_event_enable_path;
                     if (p.second) {
                         // disable before return
                         disableAllCategories();
@@ -91,10 +103,13 @@
 
 Return<::android::hardware::atrace::V1_0::Status> AtraceDevice::disableAllCategories() {
     auto ret = Status::SUCCESS;
+
     for (auto& c : kTracingMap) {
         for (auto& p : c.second.paths) {
-            if (!android::base::WriteStringToFile("0", p.first)) {
-                LOG(ERROR) << "Failed to disable tracing on: " << p.first;
+            std::string tracefs_event_enable_path = android::base::StringPrintf(
+                    "%s%s/enable", tracefs_event_root_.c_str(), p.first.c_str());
+            if (!android::base::WriteStringToFile("0", tracefs_event_enable_path)) {
+                LOG(ERROR) << "Failed to disable tracing on: " << tracefs_event_enable_path;
                 if (p.second) {
                     ret = Status::ERROR_TRACING_POINT;
                 }
diff --git a/atrace/1.0/default/AtraceDevice.h b/atrace/1.0/default/AtraceDevice.h
index e700f89..ab87c65 100644
--- a/atrace/1.0/default/AtraceDevice.h
+++ b/atrace/1.0/default/AtraceDevice.h
@@ -36,12 +36,16 @@
 using ::android::hardware::Void;
 
 struct AtraceDevice : public IAtraceDevice {
+    AtraceDevice();
     // Methods from ::android::hardware::atrace::V1_0::IAtraceDevice follow.
     Return<void> listCategories(listCategories_cb _hidl_cb) override;
     Return<::android::hardware::atrace::V1_0::Status> enableCategories(
         const hidl_vec<hidl_string>& categories) override;
     Return<::android::hardware::atrace::V1_0::Status> disableAllCategories() override;
 
+  private:
+    std::string tracefs_event_root_;
+
     // Methods from ::android::hidl::base::V1_0::IBase follow.
 };
 
diff --git a/atrace/1.0/default/android.hardware.atrace@1.0-service.rc b/atrace/1.0/default/android.hardware.atrace@1.0-service.rc
index eb54c39..7110b45 100644
--- a/atrace/1.0/default/android.hardware.atrace@1.0-service.rc
+++ b/atrace/1.0/default/android.hardware.atrace@1.0-service.rc
@@ -1,10 +1,14 @@
 on late-init
     # vendor graphics trace points
     chmod 0666 /sys/kernel/debug/tracing/events/sde/enable
+    chmod 0666 /sys/kernel/tracing/events/sde/enable
     chmod 0666 /sys/kernel/debug/tracing/events/mdss/enable
+    chmod 0666 /sys/kernel/tracing/events/mdss/enable
     chmod 0666 /sys/kernel/debug/tracing/events/mali_systrace/enable
+    chmod 0666 /sys/kernel/tracing/events/mali_systrace/enable
     # ion allocation trace point
     chmod 0666 /sys/kernel/debug/tracing/events/kmem/ion_alloc_buffer_start/enable
+    chmod 0666 /sys/kernel/tracing/events/kmem/ion_alloc_buffer_start/enable
 
 service vendor.atrace-hal-1-0 /vendor/bin/hw/android.hardware.atrace@1.0-service
     interface android.hardware.atrace@1.0::IAtraceDevice default
diff --git a/audio/7.0/config/api/current.txt b/audio/7.0/config/api/current.txt
index eb8c2dd..b5b3925 100644
--- a/audio/7.0/config/api/current.txt
+++ b/audio/7.0/config/api/current.txt
@@ -45,6 +45,8 @@
     enum_constant public static final android.audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO;
     enum_constant public static final android.audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO;
     enum_constant public static final android.audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_NONE;
+    enum_constant public static final android.audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_13POINT_360RA;
+    enum_constant public static final android.audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_22POINT2;
     enum_constant public static final android.audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT0POINT2;
     enum_constant public static final android.audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT1;
     enum_constant public static final android.audio.policy.configuration.V7_0.AudioChannelMask AUDIO_CHANNEL_OUT_2POINT1POINT2;
diff --git a/audio/7.0/config/audio_policy_configuration.xsd b/audio/7.0/config/audio_policy_configuration.xsd
index 007e250..4f5614b 100644
--- a/audio/7.0/config/audio_policy_configuration.xsd
+++ b/audio/7.0/config/audio_policy_configuration.xsd
@@ -504,6 +504,8 @@
             <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1"/>
             <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1POINT2"/>
             <xs:enumeration value="AUDIO_CHANNEL_OUT_7POINT1POINT4"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_13POINT_360RA"/>
+            <xs:enumeration value="AUDIO_CHANNEL_OUT_22POINT2"/>
             <xs:enumeration value="AUDIO_CHANNEL_OUT_MONO_HAPTIC_A"/>
             <xs:enumeration value="AUDIO_CHANNEL_OUT_STEREO_HAPTIC_A"/>
             <xs:enumeration value="AUDIO_CHANNEL_OUT_HAPTIC_AB"/>
diff --git a/audio/common/7.0/enums/include/android_audio_policy_configuration_V7_0-enums.h b/audio/common/7.0/enums/include/android_audio_policy_configuration_V7_0-enums.h
index 7d83556..fe3e4ea 100644
--- a/audio/common/7.0/enums/include/android_audio_policy_configuration_V7_0-enums.h
+++ b/audio/common/7.0/enums/include/android_audio_policy_configuration_V7_0-enums.h
@@ -94,6 +94,7 @@
         case AudioChannelMask::AUDIO_CHANNEL_OUT_7POINT1POINT4:
         case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_12:
             return 12;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_13POINT_360RA:
         case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_13:
             return 13;
         case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_14:
@@ -116,6 +117,7 @@
             return 22;
         case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_23:
             return 23;
+        case AudioChannelMask::AUDIO_CHANNEL_OUT_22POINT2:
         case AudioChannelMask::AUDIO_CHANNEL_INDEX_MASK_24:
             return 24;
         case AudioChannelMask::UNKNOWN:
diff --git a/automotive/vehicle/2.0/default/Android.bp b/automotive/vehicle/2.0/default/Android.bp
index f24b1f5..c13efde 100644
--- a/automotive/vehicle/2.0/default/Android.bp
+++ b/automotive/vehicle/2.0/default/Android.bp
@@ -91,13 +91,13 @@
         "impl/vhal_v2_0/LinearFakeValueGenerator.cpp",
         "impl/vhal_v2_0/JsonFakeValueGenerator.cpp",
         "impl/vhal_v2_0/GeneratorHub.cpp",
+        "impl/vhal_v2_0/qemu_pipe.cpp",
     ],
     local_include_dirs: ["common/include/vhal_v2_0"],
     export_include_dirs: ["impl"],
     whole_static_libs: [
         "android.hardware.automotive.vehicle@2.0-emulated-user-hal-lib",
         "android.hardware.automotive.vehicle@2.0-manager-lib",
-        "libqemu_pipe",
     ],
     shared_libs: [
         "libbase",
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.cpp
index f024287..81e7c78 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/PipeComm.cpp
@@ -18,9 +18,9 @@
 
 #include <android/hardware/automotive/vehicle/2.0/IVehicle.h>
 #include <log/log.h>
-#include <qemu_pipe.h>
 
 #include "PipeComm.h"
+#include "qemu_pipe.h"
 
 #define CAR_SERVICE_NAME "pipe:qemud:car"
 
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/qemu_pipe.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/qemu_pipe.cpp
new file mode 100644
index 0000000..cf1a002
--- /dev/null
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/qemu_pipe.cpp
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "qemu_pipe.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <android-base/file.h>
+
+using android::base::ReadFully;
+using android::base::WriteFully;
+
+// Define QEMU_PIPE_DEBUG if you want to print error messages when an error
+// occurs during pipe operations. The macro should simply take a printf-style
+// formatting string followed by optional arguments.
+#ifndef QEMU_PIPE_DEBUG
+#define QEMU_PIPE_DEBUG(...) (void)0
+#endif
+
+int qemu_pipe_open(const char* pipeName) {
+    if (!pipeName) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    int fd = TEMP_FAILURE_RETRY(open("/dev/qemu_pipe", O_RDWR));
+    if (fd < 0) {
+        QEMU_PIPE_DEBUG("%s: Could not open /dev/qemu_pipe: %s", __FUNCTION__, strerror(errno));
+        return -1;
+    }
+
+    // Write the pipe name, *including* the trailing zero which is necessary.
+    size_t pipeNameLen = strlen(pipeName);
+    if (WriteFully(fd, pipeName, pipeNameLen + 1U)) {
+        return fd;
+    }
+
+    // now, add 'pipe:' prefix and try again
+    // Note: host side will wait for the trailing '\0' to start
+    // service lookup.
+    const char pipe_prefix[] = "pipe:";
+    if (WriteFully(fd, pipe_prefix, strlen(pipe_prefix)) &&
+        WriteFully(fd, pipeName, pipeNameLen + 1U)) {
+        return fd;
+    }
+    QEMU_PIPE_DEBUG("%s: Could not write to %s pipe service: %s", __FUNCTION__, pipeName,
+                    strerror(errno));
+    close(fd);
+    return -1;
+}
+
+int qemu_pipe_frame_send(int fd, const void* buff, size_t len) {
+    char header[5];
+    snprintf(header, sizeof(header), "%04zx", len);
+    if (!WriteFully(fd, header, 4)) {
+        QEMU_PIPE_DEBUG("Can't write qemud frame header: %s", strerror(errno));
+        return -1;
+    }
+    if (!WriteFully(fd, buff, len)) {
+        QEMU_PIPE_DEBUG("Can't write qemud frame payload: %s", strerror(errno));
+        return -1;
+    }
+    return 0;
+}
+
+int qemu_pipe_frame_recv(int fd, void* buff, size_t len) {
+    char header[5];
+    if (!ReadFully(fd, header, 4)) {
+        QEMU_PIPE_DEBUG("Can't read qemud frame header: %s", strerror(errno));
+        return -1;
+    }
+    header[4] = '\0';
+    size_t size;
+    if (sscanf(header, "%04zx", &size) != 1) {
+        QEMU_PIPE_DEBUG("Malformed qemud frame header: [%.*s]", 4, header);
+        return -1;
+    }
+    if (size > len) {
+        QEMU_PIPE_DEBUG("Oversized qemud frame (% bytes, expected <= %)", size, len);
+        return -1;
+    }
+    if (!ReadFully(fd, buff, size)) {
+        QEMU_PIPE_DEBUG("Could not read qemud frame payload: %s", strerror(errno));
+        return -1;
+    }
+    return size;
+}
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/qemu_pipe.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/qemu_pipe.h
new file mode 100644
index 0000000..0987498
--- /dev/null
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/qemu_pipe.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef ANDROID_CORE_INCLUDE_QEMU_PIPE_H
+#define ANDROID_CORE_INCLUDE_QEMU_PIPE_H
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+// Try to open a new Qemu fast-pipe. This function returns a file descriptor
+// that can be used to communicate with a named service managed by the
+// emulator.
+//
+// This file descriptor can be used as a standard pipe/socket descriptor.
+//
+// 'pipeName' is the name of the emulator service you want to connect to,
+// and should begin with 'pipe:' (e.g. 'pipe:camera' or 'pipe:opengles').
+// For backward compatibility, the 'pipe:' prefix can be omitted, and in
+// that case, qemu_pipe_open will add it for you.
+
+// On success, return a valid file descriptor, or -1/errno on failure. E.g.:
+//
+// EINVAL  -> unknown/unsupported pipeName
+// ENOSYS  -> fast pipes not available in this system.
+//
+// ENOSYS should never happen, except if you're trying to run within a
+// misconfigured emulator.
+//
+// You should be able to open several pipes to the same pipe service,
+// except for a few special cases (e.g. GSM modem), where EBUSY will be
+// returned if more than one client tries to connect to it.
+int qemu_pipe_open(const char* pipeName);
+
+// Send a framed message |buff| of |len| bytes through the |fd| descriptor.
+// This really adds a 4-hexchar prefix describing the payload size.
+// Returns 0 on success, and -1 on error.
+int qemu_pipe_frame_send(int fd, const void* buff, size_t len);
+
+// Read a frame message from |fd|, and store it into |buff| of |len| bytes.
+// If the framed message is larger than |len|, then this returns -1 and the
+// content is lost. Otherwise, this returns the size of the message. NOTE:
+// empty messages are possible in a framed wire protocol and do not mean
+// end-of-stream.
+int qemu_pipe_frame_recv(int fd, void* buff, size_t len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ANDROID_CORE_INCLUDE_QEMU_PIPE_H */
diff --git a/bluetooth/1.0/vts/functional/Android.bp b/bluetooth/1.0/vts/functional/Android.bp
index 4806fef..768142c 100644
--- a/bluetooth/1.0/vts/functional/Android.bp
+++ b/bluetooth/1.0/vts/functional/Android.bp
@@ -31,6 +31,7 @@
         "android.hardware.bluetooth@1.0",
         "libbluetooth-types",
     ],
+    test_config: "VtsHalBluetoothV1_0TargetTest.xml",
     test_suites: [
         "general-tests",
         "vts",
diff --git a/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.xml b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.xml
new file mode 100644
index 0000000..09463c9
--- /dev/null
+++ b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Runs VtsHalBluetoothV1_0TargetTest.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer">
+    </target_preparer>
+    <target_preparer class="com.android.tradefed.targetprep.StopServicesSetup">
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.DeviceSetup">
+        <option name="bluetooth" value="off" />
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push" value="VtsHalBluetoothV1_0TargetTest->/data/local/tmp/VtsHalBluetoothV1_0TargetTest" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="VtsHalBluetoothV1_0TargetTest" />
+    </test>
+</configuration>
diff --git a/bluetooth/1.1/vts/functional/Android.bp b/bluetooth/1.1/vts/functional/Android.bp
index e64d5a9..7f56647 100644
--- a/bluetooth/1.1/vts/functional/Android.bp
+++ b/bluetooth/1.1/vts/functional/Android.bp
@@ -32,5 +32,6 @@
         "android.hardware.bluetooth@1.0",
         "libbluetooth-types",
     ],
+    test_config: "VtsHalBluetoothV1_1TargetTest.xml",
     test_suites: ["general-tests", "vts"],
 }
diff --git a/bluetooth/1.1/vts/functional/VtsHalBluetoothV1_1TargetTest.xml b/bluetooth/1.1/vts/functional/VtsHalBluetoothV1_1TargetTest.xml
new file mode 100644
index 0000000..d64751a
--- /dev/null
+++ b/bluetooth/1.1/vts/functional/VtsHalBluetoothV1_1TargetTest.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Runs VtsHalBluetoothV1_1TargetTest.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer">
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.DeviceSetup">
+        <option name="bluetooth" value="off" />
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push" value="VtsHalBluetoothV1_1TargetTest->/data/local/tmp/VtsHalBluetoothV1_1TargetTest" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="VtsHalBluetoothV1_1TargetTest" />
+    </test>
+</configuration>
diff --git a/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/Ashmem.aidl b/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/Ashmem.aidl
new file mode 100644
index 0000000..a438031
--- /dev/null
+++ b/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/Ashmem.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.common;
+@VintfStability
+parcelable Ashmem {
+  ParcelFileDescriptor fd;
+  long size;
+}
diff --git a/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/MappableFile.aidl b/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/MappableFile.aidl
new file mode 100644
index 0000000..394ea8f
--- /dev/null
+++ b/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/MappableFile.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.common;
+@VintfStability
+parcelable MappableFile {
+  long length;
+  int prot;
+  ParcelFileDescriptor fd;
+  long offset;
+}
diff --git a/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/NativeHandle.aidl b/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/NativeHandle.aidl
index f37b7d5..2ed5c0b 100644
--- a/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/NativeHandle.aidl
+++ b/common/aidl/aidl_api/android.hardware.common/current/android/hardware/common/NativeHandle.aidl
@@ -1,14 +1,30 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 ///////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/common/aidl/android/hardware/common/Ashmem.aidl b/common/aidl/android/hardware/common/Ashmem.aidl
new file mode 100644
index 0000000..8e40266
--- /dev/null
+++ b/common/aidl/android/hardware/common/Ashmem.aidl
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.common;
+
+import android.os.ParcelFileDescriptor;
+
+/**
+ * Type that holds same memory as the "ashmem" hidl_memory type from HIDL.
+ */
+@VintfStability
+parcelable Ashmem {
+    /**
+     * A handle to a memory region.
+     */
+    ParcelFileDescriptor fd;
+    /**
+     * Size of the memory region in bytes.
+     */
+    long size;
+}
diff --git a/common/aidl/android/hardware/common/MappableFile.aidl b/common/aidl/android/hardware/common/MappableFile.aidl
new file mode 100644
index 0000000..a7763ea
--- /dev/null
+++ b/common/aidl/android/hardware/common/MappableFile.aidl
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.common;
+
+import android.os.ParcelFileDescriptor;
+
+/**
+ * A region of a file that can be mapped into memory.
+ *
+ * In Linux, MappableFile may be used with mmap as `MAP_SHARED`.
+ *
+ * MappableFile is compatible with ::android::base::MappedFile.
+ */
+@VintfStability
+parcelable MappableFile {
+    /**
+     * Length of the mapping region in bytes.
+     */
+    long length;
+    /**
+     * The desired memory protection for the mapping.
+     *
+     * In Linux, prot is either `PROT_NONE` (indicating that mapped pages may not be accessed) or
+     * the bitwise OR of one or more of the following flags:
+     * - `PROT_READ` (indicating that the mapped pages may be read)
+     * - `PROT_WRITE` (indicating that the mapped pages may be written)
+     */
+    int prot;
+    /**
+     * A handle to a mappable file.
+     */
+    ParcelFileDescriptor fd;
+    /**
+     * The offset in the file to the beginning of the mapping region in number of bytes.
+     *
+     * Note: Some mapping functions require that the offset is aligned to the page size.
+     */
+    long offset;
+}
diff --git a/common/support/Android.bp b/common/support/Android.bp
index 8aea306..730798d 100644
--- a/common/support/Android.bp
+++ b/common/support/Android.bp
@@ -18,6 +18,11 @@
         "android.hardware.common-V2-ndk_platform",
         "libcutils",
     ],
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.neuralnetworks",
+    ],
+    min_sdk_version: "29",
 }
 
 cc_test {
diff --git a/current.txt b/current.txt
index 454d43e..0b6f698 100644
--- a/current.txt
+++ b/current.txt
@@ -776,8 +776,8 @@
 dabe23dde7c9e3ad65c61def7392f186d7efe7f4216f9b6f9cf0863745b1a9f4 android.hardware.keymaster@4.1::IKeymasterDevice
 cd84ab19c590e0e73dd2307b591a3093ee18147ef95e6d5418644463a6620076 android.hardware.neuralnetworks@1.2::IDevice
 f729ee6a5f136b25d79ea6895d24700fce413df555baaecf2c39e4440d15d043 android.hardware.neuralnetworks@1.0::types
-a84f8dac7a9b75de1cc2936a9b429b9b62b32a31ea88ca52c29f98f5ddc0fa95 android.hardware.neuralnetworks@1.2::types
-cd331b92312d16ab89f475c39296abbf539efc4114a8c5c2b136ad99b904ef33 android.hardware.neuralnetworks@1.3::types
+38c1a3eb5c3dfa4cc40b7cf4be0e9850440e2c57197fba7407081679b358aa22 android.hardware.neuralnetworks@1.2::types
+550619f876cadbea1f718edce120f0e1dd4a6f4bd4c28b59d479677dc86b0aec android.hardware.neuralnetworks@1.3::types
 c3fec5bd470984402997f78a74b6511efc4063b270f2bd9ee7b78f48b683a1bb android.hardware.neuralnetworks@1.3::IDevice
 0fdfad62c2ec33b52e6687004e5a1971c02d10b93ee4d26df5ccff7ce032494a android.hardware.neuralnetworks@1.3::IPreparedModel
 e8c86c69c438da8d1549856c1bb3e2d1b8da52722f8235ff49a30f2cce91742c android.hardware.soundtrigger@2.1::ISoundTriggerHwCallback
@@ -793,5 +793,45 @@
 2b5afef68e3e2ff1dab63e4f2ee57337ef2635ec812f49080cadfce966d33b52 android.hardware.radio@1.2::IRadio
 
 # HALs released in Android S
-# NOTE: waiting to freeze HALs until later in the release
-# NOTE: new HALs are recommended to be in AIDL
+59fa68432e374c8d3b7ec098a91a1e023a2c728110bb733237c551afa5929725 android.hardware.audio@7.0::IDevice
+2207948ca127b801c94f667c99dfd139f150b50671e1408d3e855d03efbf631d android.hardware.audio@7.0::IDevicesFactory
+1d201e15c553cd44c62864ac8d7039351ddf048a7ee61e380f6efb0904442eb8 android.hardware.audio@7.0::IPrimaryDevice
+38afa920e6d36013b5a800e8c82eefeebd24602de24441e2f8ce5b3bdf62d3af android.hardware.audio@7.0::IStream
+77d84330418abba5a92b0cdc4e27fa7c85c27344eaf7eeef441b8e88829ee475 android.hardware.audio@7.0::IStreamIn
+9e4d79ed8f3c7e18455f371342ea1802f080bae38f64db746cc433305ee1978b android.hardware.audio@7.0::IStreamOut
+54cbc3c637fe8d4b889ccb5690e5e3069ca8efd9c6607ce1d021a3f47576c67e android.hardware.audio@7.0::IStreamOutCallback
+8036ae0a68a698a79207218018de5f41aed344723f644112ffc99e20e5e2e9ff android.hardware.audio@7.0::IStreamOutEventCallback
+84978dbd15d4fa8be6073d0974755f7718ee0cde519ce71449fb734f53cee46b android.hardware.audio@7.0::types
+6a03a9d8cc917da00e8b88f4abc42db2f741e2d50901e8ab6dea32084a238fbd android.hardware.audio.common@7.0::types
+842b4485a00005fb938f674b12445cb592cd1636f56c7cc447966119070811bd android.hardware.audio.effect@7.0::IAcousticEchoCancelerEffect
+b62a85e5d745dc35b5a60464c6b33a5bb7a2b8b95863a1374aee77ea29cf8f49 android.hardware.audio.effect@7.0::IAutomaticGainControlEffect
+c8d5e30848191713db7cffccc482e4427816f33c98a24734c8769962f79f855b android.hardware.audio.effect@7.0::IBassBoostEffect
+7d021ecdf5bb6a61eb9ad193585d4986d1a64cb7fb4b52f219d7380145f2c6f1 android.hardware.audio.effect@7.0::IDownmixEffect
+7fee1e7c7bb3d513a524c8963d1f8f7c2ad856f26c745b4ebc286b40d503264a android.hardware.audio.effect@7.0::IEffect
+7596050ccc00234458dcb4e692056ed3c16f3618c11d7b17cb749cfd5713705d android.hardware.audio.effect@7.0::IEffectBufferProviderCallback
+f2e41467bcf1140a11b219c2e8f77981b955c2941befe66e1cc685b7863ae4c9 android.hardware.audio.effect@7.0::IEffectsFactory
+af66fb4addbc477f9fea65fb63475203122a9189624ca8d14e757bc7826d60a4 android.hardware.audio.effect@7.0::IEnvironmentalReverbEffect
+2878d007ed55e1a4149ddcd29606962c948d8610642276f91dffd5ed32281824 android.hardware.audio.effect@7.0::IEqualizerEffect
+0260ef9e2a3e077de366ebebc0c117c7ee13f46a1eabd4abd66cc6245d0bed98 android.hardware.audio.effect@7.0::ILoudnessEnhancerEffect
+3586bbc3a7cbe30f9aff0a522524eea9b78eea78280f09c35d43dbab48a1193e android.hardware.audio.effect@7.0::INoiseSuppressionEffect
+a7d74d7e7e0b1e3b739f233b7776bf01e868856a536f5cdac0f307e9c2850e64 android.hardware.audio.effect@7.0::IPresetReverbEffect
+b4cbc1f2d38787f2ad069a8e4d10c0896287531a2596f0de0283e390b0ecf05d android.hardware.audio.effect@7.0::IVirtualizerEffect
+2b5681e1ea6a2db0dc1e84edb96d3de2f7daf306046543e7956be76dcb8f20fb android.hardware.audio.effect@7.0::IVisualizerEffect
+fa1e2d78e66fd662de93cb479ffd55947fe54f51cb53915814b3d3e3036c86a5 android.hardware.audio.effect@7.0::types
+4baf8e0eca4aa896cc9ceb7bb676aaf4fa21372ef8b49eed68eced1221c3dc0d android.hardware.bluetooth.audio@2.1::IBluetoothAudioProvider
+d417a9212c8f96e3a06a2f221c8c5756c765355b2b81de2b2a65d4c9eee85401 android.hardware.bluetooth.audio@2.1::IBluetoothAudioProvidersFactory
+c17d9e27abd37ae5a8ff8da08fc5c9b13a264670feef6bbbc9d3ab1915216130 android.hardware.bluetooth.audio@2.1::types
+6763dd2273b1b47f3ac68af9b66870287eba33fb5b4d66e8fe1d30ae18ce24cb android.hardware.boot@1.2::IBootControl
+0c0657fad2239c2c7ec363d3b13f2e002d1c267ca89d2cc96d2b1de0475386cb android.hardware.fastboot@1.1::IFastboot
+3e8866987de4ecb48807c09d4c88ec38365930a22415f1b74edf8b14da17846b android.hardware.radio@1.6::IRadio
+715789427a44cc78f9d123b0ceb9e035e4ac2b1049501337c23a512e85b87850 android.hardware.radio@1.6::IRadioIndication
+2e9c08c4bc9539d8da28d7de33500f87148f7fa2e377238ee898b41752ac4f29 android.hardware.radio@1.6::IRadioResponse
+6475887a9cd5cc8cb803e3a78956d84d7a5fde571407ede2396f3ea5e0c0d3ad android.hardware.radio@1.6::types
+f22813615be1445ddd817655c054fc69dc9efea56c9035cd0757f3cbed190641 android.hardware.radio.config@1.3::IRadioConfig
+c9ad18729268593d14681d88ffad1c97e707444a45e1b4ed804dab949edbd84f android.hardware.radio.config@1.3::IRadioConfigResponse
+78dcb9a6975e8b377cb90bbe952078162960941468c992dcd2e1830a477b8c03 android.hardware.radio.config@1.3::types
+fd43298c43f70130c747a642ee43b0c242ac0cebffb377faa24f2725f0aa6caf android.hardware.tetheroffload.control@1.1::IOffloadControl
+fe18c9032e4063efca3fff3c377dd69780de1f96e8e2bc3f7d100a5d8bd467b4 android.hardware.tetheroffload.control@1.1::ITetheringOffloadCallback
+e34b4c7bec5e032c14804707ca924dd6b99ed5ba139da7505fe7d698d0fe178f android.hardware.tetheroffload.control@1.1::types
+
+# There should be no more HIDL HALs - please use AIDL instead.
diff --git a/drm/1.0/default/CryptoPlugin.cpp b/drm/1.0/default/CryptoPlugin.cpp
index 2db3607..e6d4e84 100644
--- a/drm/1.0/default/CryptoPlugin.cpp
+++ b/drm/1.0/default/CryptoPlugin.cpp
@@ -124,7 +124,11 @@
             return Void();
         }
 
-        if (source.offset + offset + source.size > sourceBase->getSize()) {
+        size_t totalSize = 0;
+        if (__builtin_add_overflow(source.offset, offset, &totalSize) ||
+            __builtin_add_overflow(totalSize, source.size, &totalSize) ||
+            totalSize > sourceBase->getSize()) {
+            android_errorWriteLog(0x534e4554, "176496160");
             _hidl_cb(Status::ERROR_DRM_CANNOT_HANDLE, 0, "invalid buffer size");
             return Void();
         }
diff --git a/graphics/common/aidl/Android.bp b/graphics/common/aidl/Android.bp
index 2a46f9d..cadd13c 100644
--- a/graphics/common/aidl/Android.bp
+++ b/graphics/common/aidl/Android.bp
@@ -34,6 +34,7 @@
             apex_available: [
                 "//apex_available:platform",
                 "com.android.media.swcodec",
+                "com.android.neuralnetworks",
             ],
             min_sdk_version: "29",
         },
diff --git a/graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/HardwareBufferDescription.aidl b/graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/HardwareBufferDescription.aidl
index 8b12169..232e023 100644
--- a/graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/HardwareBufferDescription.aidl
+++ b/graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/HardwareBufferDescription.aidl
@@ -21,7 +21,7 @@
   int width;
   int height;
   int layers;
-  android.hardware.graphics.common.PixelFormat format;
-  android.hardware.graphics.common.BufferUsage usage;
+  android.hardware.graphics.common.PixelFormat format = android.hardware.graphics.common.PixelFormat.UNSPECIFIED;
+  android.hardware.graphics.common.BufferUsage usage = android.hardware.graphics.common.BufferUsage.CPU_READ_NEVER;
   int stride;
 }
diff --git a/graphics/common/aidl/android/hardware/graphics/common/HardwareBufferDescription.aidl b/graphics/common/aidl/android/hardware/graphics/common/HardwareBufferDescription.aidl
index e1e3492..078c512 100644
--- a/graphics/common/aidl/android/hardware/graphics/common/HardwareBufferDescription.aidl
+++ b/graphics/common/aidl/android/hardware/graphics/common/HardwareBufferDescription.aidl
@@ -29,7 +29,7 @@
     int width;
     int height;
     int layers;
-    PixelFormat format;
-    BufferUsage usage;
+    PixelFormat format = PixelFormat.UNSPECIFIED;
+    BufferUsage usage = BufferUsage.CPU_READ_NEVER;
     int stride;
 }
diff --git a/graphics/composer/2.4/vts/functional/VtsHalGraphicsComposerV2_4TargetTest.cpp b/graphics/composer/2.4/vts/functional/VtsHalGraphicsComposerV2_4TargetTest.cpp
index 50f282f..46f95dd 100644
--- a/graphics/composer/2.4/vts/functional/VtsHalGraphicsComposerV2_4TargetTest.cpp
+++ b/graphics/composer/2.4/vts/functional/VtsHalGraphicsComposerV2_4TargetTest.cpp
@@ -73,10 +73,15 @@
 
     IComposerClient::Rect getFrameRect() const { return {0, 0, mDisplayWidth, mDisplayHeight}; }
 
+    void setDimensions(int32_t displayWidth, int32_t displayHeight) {
+        mDisplayWidth = displayWidth;
+        mDisplayHeight = displayHeight;
+    }
+
   private:
     const Display mDisplay;
-    const int32_t mDisplayWidth;
-    const int32_t mDisplayHeight;
+    int32_t mDisplayWidth;
+    int32_t mDisplayHeight;
 };
 
 class GraphicsComposerHidlTest : public ::testing::TestWithParam<std::string> {
@@ -194,6 +199,31 @@
                                        const std::vector<ContentType>& capabilities,
                                        const ContentType& contentType, const char* contentTypeStr);
 
+    Error setActiveConfigWithConstraints(
+            VtsDisplay& display, Config config,
+            const IComposerClient::VsyncPeriodChangeConstraints& constraints,
+            VsyncPeriodChangeTimeline* timeline) {
+        const auto error = mComposerClient->setActiveConfigWithConstraints(display.get(), config,
+                                                                           constraints, timeline);
+        if (error == Error::NONE) {
+            const int32_t displayWidth = mComposerClient->getDisplayAttribute_2_4(
+                    display.get(), config, IComposerClient::Attribute::WIDTH);
+            const int32_t displayHeight = mComposerClient->getDisplayAttribute_2_4(
+                    display.get(), config, IComposerClient::Attribute::HEIGHT);
+            display.setDimensions(displayWidth, displayHeight);
+        }
+        return error;
+    }
+
+    void setActiveConfig(VtsDisplay& display, Config config) {
+        mComposerClient->setActiveConfig(display.get(), config);
+        const int32_t displayWidth = mComposerClient->getDisplayAttribute_2_4(
+                display.get(), config, IComposerClient::Attribute::WIDTH);
+        const int32_t displayHeight = mComposerClient->getDisplayAttribute_2_4(
+                display.get(), config, IComposerClient::Attribute::HEIGHT);
+        display.setDimensions(displayWidth, displayHeight);
+    }
+
   private:
     // use the slot count usually set by SF
     static constexpr uint32_t kBufferSlotCount = 64;
@@ -347,7 +377,7 @@
 }
 
 TEST_P(GraphicsComposerHidlTest, getDisplayVsyncPeriod) {
-    for (const auto& display : mDisplays) {
+    for (VtsDisplay& display : mDisplays) {
         for (Config config : mComposerClient->getDisplayConfigs(display.get())) {
             VsyncPeriodNanos expectedVsyncPeriodNanos = mComposerClient->getDisplayAttribute_2_4(
                     display.get(), config,
@@ -358,8 +388,8 @@
 
             constraints.desiredTimeNanos = systemTime();
             constraints.seamlessRequired = false;
-            EXPECT_EQ(Error::NONE, mComposerClient->setActiveConfigWithConstraints(
-                                           display.get(), config, constraints, &timeline));
+            EXPECT_EQ(Error::NONE,
+                      setActiveConfigWithConstraints(display, config, constraints, &timeline));
 
             if (timeline.refreshRequired) {
                 sendRefreshFrame(display, &timeline);
@@ -411,11 +441,10 @@
     constraints.seamlessRequired = false;
     constraints.desiredTimeNanos = systemTime();
 
-    for (const auto& display : mDisplays) {
+    for (VtsDisplay& display : mDisplays) {
         Config invalidConfigId = GetInvalidConfigId(display.get());
         EXPECT_EQ(Error::BAD_CONFIG,
-                  mComposerClient->setActiveConfigWithConstraints(display.get(), invalidConfigId,
-                                                                  constraints, &timeline));
+                  setActiveConfigWithConstraints(display, invalidConfigId, constraints, &timeline));
     }
 }
 
@@ -426,7 +455,7 @@
     constraints.seamlessRequired = true;
     constraints.desiredTimeNanos = systemTime();
 
-    for (const auto& display : mDisplays) {
+    for (VtsDisplay& display : mDisplays) {
         forEachTwoConfigs(display.get(), [&](Config config1, Config config2) {
             const auto configGroup1 = mComposerClient->getDisplayAttribute_2_4(
                     display.get(), config1,
@@ -435,11 +464,10 @@
                     display.get(), config2,
                     IComposerClient::IComposerClient::Attribute::CONFIG_GROUP);
             if (configGroup1 != configGroup2) {
-                mComposerClient->setActiveConfig(display.get(), config1);
+                setActiveConfig(display, config1);
                 sendRefreshFrame(display, nullptr);
                 EXPECT_EQ(Error::SEAMLESS_NOT_ALLOWED,
-                          mComposerClient->setActiveConfigWithConstraints(display.get(), config2,
-                                                                          constraints, &timeline));
+                          setActiveConfigWithConstraints(display, config2, constraints, &timeline));
             }
         });
     }
@@ -502,6 +530,8 @@
 
     mWriter->presentDisplay();
     execute();
+
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->destroyLayer(display.get(), layer));
 }
 
 void GraphicsComposerHidlTest::waitForVsyncPeriodChange(Display display,
@@ -523,9 +553,9 @@
 }
 
 void GraphicsComposerHidlTest::Test_setActiveConfigWithConstraints(const TestParameters& params) {
-    for (const auto& display : mDisplays) {
+    for (VtsDisplay& display : mDisplays) {
         forEachTwoConfigs(display.get(), [&](Config config1, Config config2) {
-            mComposerClient->setActiveConfig(display.get(), config1);
+            setActiveConfig(display, config1);
             sendRefreshFrame(display, nullptr);
 
             int32_t vsyncPeriod1 = mComposerClient->getDisplayAttribute_2_4(
@@ -543,8 +573,8 @@
             IComposerClient::VsyncPeriodChangeConstraints constraints = {
                     .desiredTimeNanos = systemTime() + params.delayForChange,
                     .seamlessRequired = false};
-            EXPECT_EQ(Error::NONE, mComposerClient->setActiveConfigWithConstraints(
-                                           display.get(), config2, constraints, &timeline));
+            EXPECT_EQ(Error::NONE,
+                      setActiveConfigWithConstraints(display, config2, constraints, &timeline));
 
             EXPECT_TRUE(timeline.newVsyncAppliedTimeNanos >= constraints.desiredTimeNanos);
             // Refresh rate should change within a reasonable time
diff --git a/identity/aidl/aidl_api/android.hardware.identity/current/android/hardware/identity/IIdentityCredential.aidl b/identity/aidl/aidl_api/android.hardware.identity/current/android/hardware/identity/IIdentityCredential.aidl
index a097895..3224e4b 100644
--- a/identity/aidl/aidl_api/android.hardware.identity/current/android/hardware/identity/IIdentityCredential.aidl
+++ b/identity/aidl/aidl_api/android.hardware.identity/current/android/hardware/identity/IIdentityCredential.aidl
@@ -43,8 +43,8 @@
   void startRetrieval(in android.hardware.identity.SecureAccessControlProfile[] accessControlProfiles, in android.hardware.keymaster.HardwareAuthToken authToken, in byte[] itemsRequest, in byte[] signingKeyBlob, in byte[] sessionTranscript, in byte[] readerSignature, in int[] requestCounts);
   void startRetrieveEntryValue(in @utf8InCpp String nameSpace, in @utf8InCpp String name, in int entrySize, in int[] accessControlProfileIds);
   byte[] retrieveEntryValue(in byte[] encryptedContent);
-  void finishRetrieval(out byte[] mac, out byte[] deviceNameSpaces);
-  android.hardware.identity.Certificate generateSigningKeyPair(out byte[] signingKeyBlob);
+  @SuppressWarnings(value={"out-array"}) void finishRetrieval(out byte[] mac, out byte[] deviceNameSpaces);
+  @SuppressWarnings(value={"out-array"}) android.hardware.identity.Certificate generateSigningKeyPair(out byte[] signingKeyBlob);
   void setRequestedNamespaces(in android.hardware.identity.RequestNamespace[] requestNamespaces);
   void setVerificationToken(in android.hardware.keymaster.VerificationToken verificationToken);
   byte[] deleteCredentialWithChallenge(in byte[] challenge);
diff --git a/identity/aidl/aidl_api/android.hardware.identity/current/android/hardware/identity/IWritableIdentityCredential.aidl b/identity/aidl/aidl_api/android.hardware.identity/current/android/hardware/identity/IWritableIdentityCredential.aidl
index a713462..19a29ec 100644
--- a/identity/aidl/aidl_api/android.hardware.identity/current/android/hardware/identity/IWritableIdentityCredential.aidl
+++ b/identity/aidl/aidl_api/android.hardware.identity/current/android/hardware/identity/IWritableIdentityCredential.aidl
@@ -38,6 +38,6 @@
   android.hardware.identity.SecureAccessControlProfile addAccessControlProfile(in int id, in android.hardware.identity.Certificate readerCertificate, in boolean userAuthenticationRequired, in long timeoutMillis, in long secureUserId);
   void beginAddEntry(in int[] accessControlProfileIds, in @utf8InCpp String nameSpace, in @utf8InCpp String name, in int entrySize);
   byte[] addEntryValue(in byte[] content);
-  void finishAddingEntries(out byte[] credentialData, out byte[] proofOfProvisioningSignature);
+  @SuppressWarnings(value={"out-array"}) void finishAddingEntries(out byte[] credentialData, out byte[] proofOfProvisioningSignature);
   void setExpectedProofOfProvisioningSize(in int expectedProofOfProvisioningSize);
 }
diff --git a/identity/aidl/android/hardware/identity/IIdentityCredential.aidl b/identity/aidl/android/hardware/identity/IIdentityCredential.aidl
index d23f88c..8ae293b 100644
--- a/identity/aidl/android/hardware/identity/IIdentityCredential.aidl
+++ b/identity/aidl/android/hardware/identity/IIdentityCredential.aidl
@@ -324,6 +324,7 @@
      *
      * @param out deviceNameSpaces the bytes of DeviceNameSpaces.
      */
+    @SuppressWarnings(value={"out-array"})
     void finishRetrieval(out byte[] mac, out byte[] deviceNameSpaces);
 
     /**
@@ -376,6 +377,7 @@
      *
      * @return an X.509 certificate for the new signing key, signed by the credential key.
      */
+    @SuppressWarnings(value={"out-array"})
     Certificate generateSigningKeyPair(out byte[] signingKeyBlob);
 
     /**
diff --git a/identity/aidl/android/hardware/identity/IWritableIdentityCredential.aidl b/identity/aidl/android/hardware/identity/IWritableIdentityCredential.aidl
index 5f878ee..22bcf61 100644
--- a/identity/aidl/android/hardware/identity/IWritableIdentityCredential.aidl
+++ b/identity/aidl/android/hardware/identity/IWritableIdentityCredential.aidl
@@ -320,6 +320,7 @@
      *              "accessControlProfiles" : [ * uint ],
      *          }
      */
+    @SuppressWarnings(value={"out-array"})
     void finishAddingEntries(out byte[] credentialData,
         out byte[] proofOfProvisioningSignature);
 
diff --git a/identity/aidl/default/Android.bp b/identity/aidl/default/Android.bp
index 05b3662..7c68aee 100644
--- a/identity/aidl/default/Android.bp
+++ b/identity/aidl/default/Android.bp
@@ -31,7 +31,8 @@
     ],
     static_libs: [
         "libbase",
-        "libcppbor",
+        "libcppbor_external",
+        "libcppcose_rkp",
         "libutils",
         "libsoft_attestation_cert",
         "libkeymaster_portable",
@@ -91,7 +92,8 @@
     ],
     static_libs: [
         "libbase",
-        "libcppbor",
+        "libcppbor_external",
+        "libcppcose_rkp",
         "libutils",
         "libsoft_attestation_cert",
         "libkeymaster_portable",
diff --git a/identity/aidl/default/common/IdentityCredential.cpp b/identity/aidl/default/common/IdentityCredential.cpp
index c8ee0dd..95557b5 100644
--- a/identity/aidl/default/common/IdentityCredential.cpp
+++ b/identity/aidl/default/common/IdentityCredential.cpp
@@ -488,7 +488,7 @@
         }
 
         for (size_t n = 0; n < nsMap->size(); n++) {
-            auto [nsKeyItem, nsValueItem] = (*nsMap)[n];
+            auto& [nsKeyItem, nsValueItem] = (*nsMap)[n];
             const cppbor::Tstr* nsKey = nsKeyItem->asTstr();
             const cppbor::Map* nsInnerMap = nsValueItem->asMap();
             if (nsKey == nullptr || nsInnerMap == nullptr) {
diff --git a/identity/aidl/default/common/IdentityCredential.h b/identity/aidl/default/common/IdentityCredential.h
index 9913b86..ef9d133 100644
--- a/identity/aidl/default/common/IdentityCredential.h
+++ b/identity/aidl/default/common/IdentityCredential.h
@@ -27,7 +27,7 @@
 #include <string>
 #include <vector>
 
-#include <cppbor/cppbor.h>
+#include <cppbor.h>
 
 #include "IdentityCredentialStore.h"
 #include "SecureHardwareProxy.h"
diff --git a/identity/aidl/default/common/WritableIdentityCredential.cpp b/identity/aidl/default/common/WritableIdentityCredential.cpp
index 2d897c7..25f129b 100644
--- a/identity/aidl/default/common/WritableIdentityCredential.cpp
+++ b/identity/aidl/default/common/WritableIdentityCredential.cpp
@@ -23,8 +23,8 @@
 #include <android-base/logging.h>
 #include <android-base/stringprintf.h>
 
-#include <cppbor/cppbor.h>
-#include <cppbor/cppbor_parse.h>
+#include <cppbor.h>
+#include <cppbor_parse.h>
 
 #include <utility>
 
diff --git a/identity/aidl/vts/Android.bp b/identity/aidl/vts/Android.bp
index 82c4011..61d15d2 100644
--- a/identity/aidl/vts/Android.bp
+++ b/identity/aidl/vts/Android.bp
@@ -34,7 +34,8 @@
         "libcrypto",
     ],
     static_libs: [
-        "libcppbor",
+        "libcppbor_external",
+        "libcppcose_rkp",
         "libkeymaster_portable",
         "libpuresoftkeymasterdevice",
         "android.hardware.keymaster@4.0",
diff --git a/identity/aidl/vts/AuthenticationKeyTests.cpp b/identity/aidl/vts/AuthenticationKeyTests.cpp
index bda3e70..25d74d4 100644
--- a/identity/aidl/vts/AuthenticationKeyTests.cpp
+++ b/identity/aidl/vts/AuthenticationKeyTests.cpp
@@ -118,7 +118,7 @@
     optional<vector<uint8_t>> proofOfProvisioning =
             support::coseSignGetPayload(proofOfProvisioningSignature);
     ASSERT_TRUE(proofOfProvisioning);
-    string cborPretty = support::cborPrettyPrint(proofOfProvisioning.value(), 32, {});
+    string cborPretty = cppbor::prettyPrint(proofOfProvisioning.value(), 32, {});
     EXPECT_EQ(
             "[\n"
             "  'ProofOfProvisioning',\n"
diff --git a/identity/aidl/vts/DeleteCredentialTests.cpp b/identity/aidl/vts/DeleteCredentialTests.cpp
index 1d30067..d3addf4 100644
--- a/identity/aidl/vts/DeleteCredentialTests.cpp
+++ b/identity/aidl/vts/DeleteCredentialTests.cpp
@@ -126,7 +126,7 @@
     optional<vector<uint8_t>> proofOfDeletion =
             support::coseSignGetPayload(proofOfDeletionSignature);
     ASSERT_TRUE(proofOfDeletion);
-    string cborPretty = support::cborPrettyPrint(proofOfDeletion.value(), 32, {});
+    string cborPretty = cppbor::prettyPrint(proofOfDeletion.value(), 32, {});
     EXPECT_EQ("['ProofOfDeletion', 'org.iso.18013-5.2019.mdl', true, ]", cborPretty);
     EXPECT_TRUE(support::coseCheckEcDsaSignature(proofOfDeletionSignature, {},  // Additional data
                                                  credentialPubKey_));
@@ -153,7 +153,7 @@
     optional<vector<uint8_t>> proofOfDeletion =
             support::coseSignGetPayload(proofOfDeletionSignature);
     ASSERT_TRUE(proofOfDeletion);
-    string cborPretty = support::cborPrettyPrint(proofOfDeletion.value(), 32, {});
+    string cborPretty = cppbor::prettyPrint(proofOfDeletion.value(), 32, {});
     EXPECT_EQ("['ProofOfDeletion', 'org.iso.18013-5.2019.mdl', {0x41, 0x42, 0x43}, true, ]",
               cborPretty);
     EXPECT_TRUE(support::coseCheckEcDsaSignature(proofOfDeletionSignature, {},  // Additional data
diff --git a/identity/aidl/vts/EndToEndTests.cpp b/identity/aidl/vts/EndToEndTests.cpp
index 5798b4c..67db915 100644
--- a/identity/aidl/vts/EndToEndTests.cpp
+++ b/identity/aidl/vts/EndToEndTests.cpp
@@ -231,7 +231,7 @@
     optional<vector<uint8_t>> proofOfProvisioning =
             support::coseSignGetPayload(proofOfProvisioningSignature);
     ASSERT_TRUE(proofOfProvisioning);
-    cborPretty = support::cborPrettyPrint(proofOfProvisioning.value(), 32, {"readerCertificate"});
+    cborPretty = cppbor::prettyPrint(proofOfProvisioning.value(), 32, {"readerCertificate"});
     EXPECT_EQ(
             "[\n"
             "  'ProofOfProvisioning',\n"
@@ -339,8 +339,8 @@
     vector<uint8_t> deviceEngagementBytes = deviceEngagement.encode();
     vector<uint8_t> eReaderPubBytes = cppbor::Tstr("ignored").encode();
     cppbor::Array sessionTranscript = cppbor::Array()
-                                              .add(cppbor::Semantic(24, deviceEngagementBytes))
-                                              .add(cppbor::Semantic(24, eReaderPubBytes));
+                                              .add(cppbor::SemanticTag(24, deviceEngagementBytes))
+                                              .add(cppbor::SemanticTag(24, eReaderPubBytes));
     vector<uint8_t> sessionTranscriptEncoded = sessionTranscript.encode();
 
     vector<uint8_t> itemsRequestBytes =
@@ -353,7 +353,7 @@
                                                              .add("Home address", true))
                                 .add("Image", cppbor::Map().add("Portrait image", false)))
                     .encode();
-    cborPretty = support::cborPrettyPrint(itemsRequestBytes, 32, {"EphemeralPublicKey"});
+    cborPretty = cppbor::prettyPrint(itemsRequestBytes, 32, {"EphemeralPublicKey"});
     EXPECT_EQ(
             "{\n"
             "  'nameSpaces' : {\n"
@@ -373,10 +373,10 @@
             cppbor::Array()
                     .add("ReaderAuthentication")
                     .add(sessionTranscript.clone())
-                    .add(cppbor::Semantic(24, itemsRequestBytes))
+                    .add(cppbor::SemanticTag(24, itemsRequestBytes))
                     .encode();
     vector<uint8_t> encodedReaderAuthenticationBytes =
-            cppbor::Semantic(24, encodedReaderAuthentication).encode();
+            cppbor::SemanticTag(24, encodedReaderAuthentication).encode();
     optional<vector<uint8_t>> readerSignature =
             support::coseSignEcDsa(readerKey, {},                     // content
                                    encodedReaderAuthenticationBytes,  // detached content
@@ -443,7 +443,7 @@
     vector<uint8_t> mac;
     vector<uint8_t> deviceNameSpacesEncoded;
     ASSERT_TRUE(credential->finishRetrieval(&mac, &deviceNameSpacesEncoded).isOk());
-    cborPretty = support::cborPrettyPrint(deviceNameSpacesEncoded, 32, {});
+    cborPretty = cppbor::prettyPrint(deviceNameSpacesEncoded, 32, {});
     ASSERT_EQ(
             "{\n"
             "  'PersonalData' : {\n"
@@ -462,10 +462,11 @@
     string docType = "org.iso.18013-5.2019.mdl";
     optional<vector<uint8_t>> readerEphemeralPrivateKey =
             support::ecKeyPairGetPrivateKey(readerEphemeralKeyPair.value());
-    optional<vector<uint8_t>> eMacKey = support::calcEMacKey(
-            readerEphemeralPrivateKey.value(),                           // Private Key
-            signingPubKey.value(),                                       // Public Key
-            cppbor::Semantic(24, sessionTranscript.encode()).encode());  // SessionTranscriptBytes
+    optional<vector<uint8_t>> eMacKey =
+            support::calcEMacKey(readerEphemeralPrivateKey.value(),  // Private Key
+                                 signingPubKey.value(),              // Public Key
+                                 cppbor::SemanticTag(24, sessionTranscript.encode())
+                                         .encode());  // SessionTranscriptBytes
     optional<vector<uint8_t>> calculatedMac =
             support::calcMac(sessionTranscript.encode(),  // SessionTranscript
                              docType,                     // DocType
@@ -486,7 +487,7 @@
                                 testEntriesEntryCounts)
                         .isOk());
     ASSERT_TRUE(credential->finishRetrieval(&mac, &deviceNameSpacesEncoded).isOk());
-    cborPretty = support::cborPrettyPrint(deviceNameSpacesEncoded, 32, {});
+    cborPretty = cppbor::prettyPrint(deviceNameSpacesEncoded, 32, {});
     ASSERT_EQ("{}", cborPretty);
     // Calculate DeviceAuthentication and MAC (MACing key hasn't changed)
     calculatedMac = support::calcMac(sessionTranscript.encode(),  // SessionTranscript
@@ -508,7 +509,7 @@
                                 testEntriesEntryCounts)
                         .isOk());
     ASSERT_TRUE(credential->finishRetrieval(&mac, &deviceNameSpacesEncoded).isOk());
-    cborPretty = support::cborPrettyPrint(deviceNameSpacesEncoded, 32, {});
+    cborPretty = cppbor::prettyPrint(deviceNameSpacesEncoded, 32, {});
     ASSERT_EQ("{}", cborPretty);
     // Calculate DeviceAuthentication and MAC (MACing key hasn't changed)
     calculatedMac = support::calcMac(sessionTranscript.encode(),  // SessionTranscript
diff --git a/identity/aidl/vts/ProveOwnershipTests.cpp b/identity/aidl/vts/ProveOwnershipTests.cpp
index d1a3d39..fa0e293 100644
--- a/identity/aidl/vts/ProveOwnershipTests.cpp
+++ b/identity/aidl/vts/ProveOwnershipTests.cpp
@@ -131,7 +131,7 @@
     optional<vector<uint8_t>> proofOfOwnership =
             support::coseSignGetPayload(proofOfOwnershipSignature);
     ASSERT_TRUE(proofOfOwnership);
-    string cborPretty = support::cborPrettyPrint(proofOfOwnership.value(), 32, {});
+    string cborPretty = cppbor::prettyPrint(proofOfOwnership.value(), 32, {});
     EXPECT_EQ("['ProofOfOwnership', 'org.iso.18013-5.2019.mdl', {0x11, 0x12}, true, ]", cborPretty);
     EXPECT_TRUE(support::coseCheckEcDsaSignature(proofOfOwnershipSignature, {},  // Additional data
                                                  credentialPubKey_));
diff --git a/identity/aidl/vts/ReaderAuthTests.cpp b/identity/aidl/vts/ReaderAuthTests.cpp
index 7656c8e..c4a58c3 100644
--- a/identity/aidl/vts/ReaderAuthTests.cpp
+++ b/identity/aidl/vts/ReaderAuthTests.cpp
@@ -262,8 +262,8 @@
     vector<uint8_t> deviceEngagementBytes = deviceEngagement.encode();
     vector<uint8_t> eReaderPubBytes = cppbor::Tstr("ignored").encode();
     cppbor::Array sessionTranscript = cppbor::Array()
-                                              .add(cppbor::Semantic(24, deviceEngagementBytes))
-                                              .add(cppbor::Semantic(24, eReaderPubBytes));
+                                              .add(cppbor::SemanticTag(24, deviceEngagementBytes))
+                                              .add(cppbor::SemanticTag(24, eReaderPubBytes));
     vector<uint8_t> sessionTranscriptBytes = sessionTranscript.encode();
 
     vector<uint8_t> itemsRequestBytes;
@@ -293,10 +293,10 @@
             cppbor::Array()
                     .add("ReaderAuthentication")
                     .add(sessionTranscript.clone())
-                    .add(cppbor::Semantic(24, itemsRequestBytes))
+                    .add(cppbor::SemanticTag(24, itemsRequestBytes))
                     .encode();
     vector<uint8_t> encodedReaderAuthenticationBytes =
-            cppbor::Semantic(24, encodedReaderAuthentication).encode();
+            cppbor::SemanticTag(24, encodedReaderAuthentication).encode();
 
     optional<vector<uint8_t>> readerSignature =
             support::coseSignEcDsa(readerPrivateKey,                  // private key for reader
@@ -517,8 +517,8 @@
     vector<uint8_t> deviceEngagementBytes = deviceEngagement.encode();
     vector<uint8_t> eReaderPubBytes = cppbor::Tstr("ignored").encode();
     cppbor::Array sessionTranscript = cppbor::Array()
-                                              .add(cppbor::Semantic(24, deviceEngagementBytes))
-                                              .add(cppbor::Semantic(24, eReaderPubBytes));
+                                              .add(cppbor::SemanticTag(24, deviceEngagementBytes))
+                                              .add(cppbor::SemanticTag(24, eReaderPubBytes));
     vector<uint8_t> sessionTranscriptBytes = sessionTranscript.encode();
 
     vector<uint8_t> itemsRequestBytes;
@@ -535,10 +535,10 @@
             cppbor::Array()
                     .add("ReaderAuthentication")
                     .add(sessionTranscript.clone())
-                    .add(cppbor::Semantic(24, itemsRequestBytes))
+                    .add(cppbor::SemanticTag(24, itemsRequestBytes))
                     .encode();
     vector<uint8_t> encodedReaderAuthenticationBytes =
-            cppbor::Semantic(24, encodedReaderAuthentication).encode();
+            cppbor::SemanticTag(24, encodedReaderAuthentication).encode();
 
     vector<vector<uint8_t>> readerCertChain = {cert_reader_SelfSigned_};
     optional<vector<uint8_t>> readerSignature =
diff --git a/identity/aidl/vts/TestCredentialTests.cpp b/identity/aidl/vts/TestCredentialTests.cpp
index d53de3b..46c2229 100644
--- a/identity/aidl/vts/TestCredentialTests.cpp
+++ b/identity/aidl/vts/TestCredentialTests.cpp
@@ -114,7 +114,7 @@
     optional<vector<uint8_t>> proofOfProvisioning =
             support::coseSignGetPayload(proofOfProvisioningSignature);
     ASSERT_TRUE(proofOfProvisioning);
-    string cborPretty = support::cborPrettyPrint(proofOfProvisioning.value(), 32, {});
+    string cborPretty = cppbor::prettyPrint(proofOfProvisioning.value(), 32, {});
     EXPECT_EQ(
             "[\n"
             "  'ProofOfProvisioning',\n"
diff --git a/identity/aidl/vts/UpdateCredentialTests.cpp b/identity/aidl/vts/UpdateCredentialTests.cpp
index 9c5ca55..e05bb3b 100644
--- a/identity/aidl/vts/UpdateCredentialTests.cpp
+++ b/identity/aidl/vts/UpdateCredentialTests.cpp
@@ -114,7 +114,7 @@
     optional<vector<uint8_t>> proofOfProvisioning =
             support::coseSignGetPayload(proofOfProvisioningSignature);
     ASSERT_TRUE(proofOfProvisioning);
-    string cborPretty = support::cborPrettyPrint(proofOfProvisioning.value(), 32, {});
+    string cborPretty = cppbor::prettyPrint(proofOfProvisioning.value(), 32, {});
     EXPECT_EQ(
             "[\n"
             "  'ProofOfProvisioning',\n"
@@ -195,7 +195,7 @@
     optional<vector<uint8_t>> proofOfProvisioning =
             support::coseSignGetPayload(proofOfProvisioningSignature);
     ASSERT_TRUE(proofOfProvisioning);
-    string cborPretty = support::cborPrettyPrint(proofOfProvisioning.value(), 32, {});
+    string cborPretty = cppbor::prettyPrint(proofOfProvisioning.value(), 32, {});
     EXPECT_EQ(
             "[\n"
             "  'ProofOfProvisioning',\n"
diff --git a/identity/aidl/vts/UserAuthTests.cpp b/identity/aidl/vts/UserAuthTests.cpp
index ef89d1c..edd1725 100644
--- a/identity/aidl/vts/UserAuthTests.cpp
+++ b/identity/aidl/vts/UserAuthTests.cpp
@@ -160,8 +160,8 @@
     // Let SessionTranscript be a map here (it's an array in EndToEndTest) just
     // to check that the implementation can deal with either.
     cppbor::Map sessionTranscript;
-    sessionTranscript.add(42, cppbor::Semantic(24, deviceEngagementBytes));
-    sessionTranscript.add(43, cppbor::Semantic(24, eReaderPubBytes));
+    sessionTranscript.add(42, cppbor::SemanticTag(24, deviceEngagementBytes));
+    sessionTranscript.add(43, cppbor::SemanticTag(24, eReaderPubBytes));
     return sessionTranscript;
 }
 
@@ -209,7 +209,7 @@
         vector<uint8_t> dataToSign = cppbor::Array()
                                              .add("ReaderAuthentication")
                                              .add(sessionTranscript_.clone())
-                                             .add(cppbor::Semantic(24, itemsRequestBytes))
+                                             .add(cppbor::SemanticTag(24, itemsRequestBytes))
                                              .encode();
     }
 
diff --git a/identity/aidl/vts/VtsIWritableIdentityCredentialTests.cpp b/identity/aidl/vts/VtsIWritableIdentityCredentialTests.cpp
index cc63c48..bc37020 100644
--- a/identity/aidl/vts/VtsIWritableIdentityCredentialTests.cpp
+++ b/identity/aidl/vts/VtsIWritableIdentityCredentialTests.cpp
@@ -338,8 +338,7 @@
     optional<vector<uint8_t>> proofOfProvisioning =
             support::coseSignGetPayload(proofOfProvisioningSignature);
     ASSERT_TRUE(proofOfProvisioning);
-    string cborPretty =
-            support::cborPrettyPrint(proofOfProvisioning.value(), 32, {"readerCertificate"});
+    string cborPretty = cppbor::prettyPrint(proofOfProvisioning.value(), 32, {"readerCertificate"});
     EXPECT_EQ(
             "[\n"
             "  'ProofOfProvisioning',\n"
@@ -449,9 +448,9 @@
     optional<vector<uint8_t>> proofOfProvisioning =
             support::coseSignGetPayload(proofOfProvisioningSignature);
     ASSERT_TRUE(proofOfProvisioning);
-    string cborPretty = support::cborPrettyPrint(proofOfProvisioning.value(),
-                                                 32,  //
-                                                 {"readerCertificate"});
+    string cborPretty = cppbor::prettyPrint(proofOfProvisioning.value(),
+                                            32,  //
+                                            {"readerCertificate"});
     EXPECT_EQ(
             "[\n"
             "  'ProofOfProvisioning',\n"
diff --git a/identity/support/Android.bp b/identity/support/Android.bp
index d00f59a..db1a945 100644
--- a/identity/support/Android.bp
+++ b/identity/support/Android.bp
@@ -35,6 +35,7 @@
         "android.hardware.keymaster@4.0",
         "libcrypto",
         "libbase",
+        "libcppcose_rkp",
         "libhidlbase",
         "libhardware",
         "libkeymaster_portable",
@@ -42,7 +43,7 @@
         "libpuresoftkeymasterdevice",
     ],
     static_libs: [
-        "libcppbor",
+        "libcppbor_external",
     ],
 }
 
@@ -59,7 +60,7 @@
         "libhardware",
     ],
     static_libs: [
-        "libcppbor",
+        "libcppbor_external",
         "libgmock",
     ],
     test_suites: ["general-tests"],
@@ -89,7 +90,7 @@
         "tests/cppbor_test.cpp",
     ],
     shared_libs: [
-        "libcppbor",
+        "libcppbor_external",
         "libbase",
     ],
     static_libs: [
@@ -104,7 +105,7 @@
         "tests/cppbor_test.cpp",
     ],
     shared_libs: [
-        "libcppbor",
+        "libcppbor_external",
         "libbase",
     ],
     static_libs: [
diff --git a/identity/support/src/IdentityCredentialSupport.cpp b/identity/support/src/IdentityCredentialSupport.cpp
index aba89c1..4547624 100644
--- a/identity/support/src/IdentityCredentialSupport.cpp
+++ b/identity/support/src/IdentityCredentialSupport.cpp
@@ -148,199 +148,6 @@
 }
 
 // ---------------------------------------------------------------------------
-// CBOR utilities.
-// ---------------------------------------------------------------------------
-
-static bool cborAreAllElementsNonCompound(const cppbor::CompoundItem* compoundItem) {
-    if (compoundItem->type() == cppbor::ARRAY) {
-        const cppbor::Array* array = compoundItem->asArray();
-        for (size_t n = 0; n < array->size(); n++) {
-            const cppbor::Item* entry = (*array)[n].get();
-            switch (entry->type()) {
-                case cppbor::ARRAY:
-                case cppbor::MAP:
-                    return false;
-                default:
-                    break;
-            }
-        }
-    } else {
-        const cppbor::Map* map = compoundItem->asMap();
-        for (size_t n = 0; n < map->size(); n++) {
-            auto [keyEntry, valueEntry] = (*map)[n];
-            switch (keyEntry->type()) {
-                case cppbor::ARRAY:
-                case cppbor::MAP:
-                    return false;
-                default:
-                    break;
-            }
-            switch (valueEntry->type()) {
-                case cppbor::ARRAY:
-                case cppbor::MAP:
-                    return false;
-                default:
-                    break;
-            }
-        }
-    }
-    return true;
-}
-
-static bool cborPrettyPrintInternal(const cppbor::Item* item, string& out, size_t indent,
-                                    size_t maxBStrSize, const vector<string>& mapKeysToNotPrint) {
-    char buf[80];
-
-    string indentString(indent, ' ');
-
-    switch (item->type()) {
-        case cppbor::UINT:
-            snprintf(buf, sizeof(buf), "%" PRIu64, item->asUint()->unsignedValue());
-            out.append(buf);
-            break;
-
-        case cppbor::NINT:
-            snprintf(buf, sizeof(buf), "%" PRId64, item->asNint()->value());
-            out.append(buf);
-            break;
-
-        case cppbor::BSTR: {
-            const cppbor::Bstr* bstr = item->asBstr();
-            const vector<uint8_t>& value = bstr->value();
-            if (value.size() > maxBStrSize) {
-                unsigned char digest[SHA_DIGEST_LENGTH];
-                SHA_CTX ctx;
-                SHA1_Init(&ctx);
-                SHA1_Update(&ctx, value.data(), value.size());
-                SHA1_Final(digest, &ctx);
-                char buf2[SHA_DIGEST_LENGTH * 2 + 1];
-                for (size_t n = 0; n < SHA_DIGEST_LENGTH; n++) {
-                    snprintf(buf2 + n * 2, 3, "%02x", digest[n]);
-                }
-                snprintf(buf, sizeof(buf), "<bstr size=%zd sha1=%s>", value.size(), buf2);
-                out.append(buf);
-            } else {
-                out.append("{");
-                for (size_t n = 0; n < value.size(); n++) {
-                    if (n > 0) {
-                        out.append(", ");
-                    }
-                    snprintf(buf, sizeof(buf), "0x%02x", value[n]);
-                    out.append(buf);
-                }
-                out.append("}");
-            }
-        } break;
-
-        case cppbor::TSTR:
-            out.append("'");
-            {
-                // TODO: escape "'" characters
-                out.append(item->asTstr()->value().c_str());
-            }
-            out.append("'");
-            break;
-
-        case cppbor::ARRAY: {
-            const cppbor::Array* array = item->asArray();
-            if (array->size() == 0) {
-                out.append("[]");
-            } else if (cborAreAllElementsNonCompound(array)) {
-                out.append("[");
-                for (size_t n = 0; n < array->size(); n++) {
-                    if (!cborPrettyPrintInternal((*array)[n].get(), out, indent + 2, maxBStrSize,
-                                                 mapKeysToNotPrint)) {
-                        return false;
-                    }
-                    out.append(", ");
-                }
-                out.append("]");
-            } else {
-                out.append("[\n" + indentString);
-                for (size_t n = 0; n < array->size(); n++) {
-                    out.append("  ");
-                    if (!cborPrettyPrintInternal((*array)[n].get(), out, indent + 2, maxBStrSize,
-                                                 mapKeysToNotPrint)) {
-                        return false;
-                    }
-                    out.append(",\n" + indentString);
-                }
-                out.append("]");
-            }
-        } break;
-
-        case cppbor::MAP: {
-            const cppbor::Map* map = item->asMap();
-
-            if (map->size() == 0) {
-                out.append("{}");
-            } else {
-                out.append("{\n" + indentString);
-                for (size_t n = 0; n < map->size(); n++) {
-                    out.append("  ");
-
-                    auto [map_key, map_value] = (*map)[n];
-
-                    if (!cborPrettyPrintInternal(map_key.get(), out, indent + 2, maxBStrSize,
-                                                 mapKeysToNotPrint)) {
-                        return false;
-                    }
-                    out.append(" : ");
-                    if (map_key->type() == cppbor::TSTR &&
-                        std::find(mapKeysToNotPrint.begin(), mapKeysToNotPrint.end(),
-                                  map_key->asTstr()->value()) != mapKeysToNotPrint.end()) {
-                        out.append("<not printed>");
-                    } else {
-                        if (!cborPrettyPrintInternal(map_value.get(), out, indent + 2, maxBStrSize,
-                                                     mapKeysToNotPrint)) {
-                            return false;
-                        }
-                    }
-                    out.append(",\n" + indentString);
-                }
-                out.append("}");
-            }
-        } break;
-
-        case cppbor::SEMANTIC: {
-            const cppbor::Semantic* semantic = item->asSemantic();
-            snprintf(buf, sizeof(buf), "tag %" PRIu64 " ", semantic->value());
-            out.append(buf);
-            cborPrettyPrintInternal(semantic->child().get(), out, indent, maxBStrSize,
-                                    mapKeysToNotPrint);
-        } break;
-
-        case cppbor::SIMPLE:
-            const cppbor::Bool* asBool = item->asSimple()->asBool();
-            const cppbor::Null* asNull = item->asSimple()->asNull();
-            if (asBool != nullptr) {
-                out.append(asBool->value() ? "true" : "false");
-            } else if (asNull != nullptr) {
-                out.append("null");
-            } else {
-                LOG(ERROR) << "Only boolean/null is implemented for SIMPLE";
-                return false;
-            }
-            break;
-    }
-
-    return true;
-}
-
-string cborPrettyPrint(const vector<uint8_t>& encodedCbor, size_t maxBStrSize,
-                       const vector<string>& mapKeysToNotPrint) {
-    auto [item, _, message] = cppbor::parse(encodedCbor);
-    if (item == nullptr) {
-        LOG(ERROR) << "Data to pretty print is not valid CBOR: " << message;
-        return "";
-    }
-
-    string out;
-    cborPrettyPrintInternal(item.get(), out, 0, maxBStrSize, mapKeysToNotPrint);
-    return out;
-}
-
-// ---------------------------------------------------------------------------
 // Crypto functionality / abstraction.
 // ---------------------------------------------------------------------------
 
@@ -2140,7 +1947,7 @@
     }
 
     for (size_t n = 0; n < protectedHeaders->size(); n++) {
-        auto [keyItem, valueItem] = (*protectedHeaders)[n];
+        auto& [keyItem, valueItem] = (*protectedHeaders)[n];
         const cppbor::Int* number = keyItem->asInt();
         if (number == nullptr) {
             LOG(ERROR) << "Key item in top-level map is not a number";
@@ -2183,7 +1990,7 @@
     }
 
     for (size_t n = 0; n < unprotectedHeaders->size(); n++) {
-        auto [keyItem, valueItem] = (*unprotectedHeaders)[n];
+        auto& [keyItem, valueItem] = (*unprotectedHeaders)[n];
         const cppbor::Int* number = keyItem->asInt();
         if (number == nullptr) {
             LOG(ERROR) << "Key item in top-level map is not a number";
@@ -2335,9 +2142,9 @@
                     .add("DeviceAuthentication")
                     .add(std::move(sessionTranscriptItem))
                     .add(docType)
-                    .add(cppbor::Semantic(kSemanticTagEncodedCbor, deviceNameSpacesEncoded));
+                    .add(cppbor::SemanticTag(kSemanticTagEncodedCbor, deviceNameSpacesEncoded));
     vector<uint8_t> deviceAuthenticationBytes =
-            cppbor::Semantic(kSemanticTagEncodedCbor, deviceAuthentication.encode()).encode();
+            cppbor::SemanticTag(kSemanticTagEncodedCbor, deviceAuthentication.encode()).encode();
     optional<vector<uint8_t>> calculatedMac =
             support::coseMac0(eMacKey, {},                 // payload
                               deviceAuthenticationBytes);  // detached content
diff --git a/identity/support/tests/IdentityCredentialSupportTest.cpp b/identity/support/tests/IdentityCredentialSupportTest.cpp
index 509133c..4c9b87a 100644
--- a/identity/support/tests/IdentityCredentialSupportTest.cpp
+++ b/identity/support/tests/IdentityCredentialSupportTest.cpp
@@ -55,99 +55,6 @@
     EXPECT_FALSE(support::decodeHex("012"));
 }
 
-TEST(IdentityCredentialSupport, CborPrettyPrint) {
-    EXPECT_EQ("'Some text'", support::cborPrettyPrint(cppbor::Tstr("Some text").encode()));
-
-    EXPECT_EQ("''", support::cborPrettyPrint(cppbor::Tstr("").encode()));
-
-    EXPECT_EQ("{0x01, 0x00, 0x02, 0xf0, 0xff, 0x40}",
-              support::cborPrettyPrint(
-                      cppbor::Bstr(vector<uint8_t>({1, 0, 2, 240, 255, 64})).encode()));
-
-    EXPECT_EQ("{}", support::cborPrettyPrint(cppbor::Bstr(vector<uint8_t>()).encode()));
-
-    EXPECT_EQ("true", support::cborPrettyPrint(cppbor::Bool(true).encode()));
-
-    EXPECT_EQ("false", support::cborPrettyPrint(cppbor::Bool(false).encode()));
-
-    EXPECT_EQ("42", support::cborPrettyPrint(cppbor::Uint(42).encode()));
-
-    EXPECT_EQ("9223372036854775807",  // 0x7fff ffff ffff ffff
-              support::cborPrettyPrint(cppbor::Uint(std::numeric_limits<int64_t>::max()).encode()));
-
-    EXPECT_EQ("-42", support::cborPrettyPrint(cppbor::Nint(-42).encode()));
-
-    EXPECT_EQ("-9223372036854775808",  // -0x8000 0000 0000 0000
-              support::cborPrettyPrint(cppbor::Nint(std::numeric_limits<int64_t>::min()).encode()));
-}
-
-TEST(IdentityCredentialSupport, CborPrettyPrintCompound) {
-    cppbor::Array array = cppbor::Array("foo", "bar", "baz");
-    EXPECT_EQ("['foo', 'bar', 'baz', ]", support::cborPrettyPrint(array.encode()));
-
-    cppbor::Map map = cppbor::Map().add("foo", 42).add("bar", 43).add("baz", 44);
-    EXPECT_EQ(
-            "{\n"
-            "  'foo' : 42,\n"
-            "  'bar' : 43,\n"
-            "  'baz' : 44,\n"
-            "}",
-            support::cborPrettyPrint(map.encode()));
-
-    cppbor::Array array2 = cppbor::Array(cppbor::Tstr("Some text"), cppbor::Nint(-42));
-    EXPECT_EQ("['Some text', -42, ]", support::cborPrettyPrint(array2.encode()));
-
-    cppbor::Map map2 = cppbor::Map().add(42, "foo").add(43, "bar").add(44, "baz");
-    EXPECT_EQ(
-            "{\n"
-            "  42 : 'foo',\n"
-            "  43 : 'bar',\n"
-            "  44 : 'baz',\n"
-            "}",
-            support::cborPrettyPrint(map2.encode()));
-
-    cppbor::Array deeplyNestedArrays =
-            cppbor::Array(cppbor::Array(cppbor::Array("a", "b", "c")),
-                          cppbor::Array(cppbor::Array("d", "e", cppbor::Array("f", "g"))));
-    EXPECT_EQ(
-            "[\n"
-            "  ['a', 'b', 'c', ],\n"
-            "  [\n    'd',\n"
-            "    'e',\n"
-            "    ['f', 'g', ],\n"
-            "  ],\n"
-            "]",
-            support::cborPrettyPrint(deeplyNestedArrays.encode()));
-
-    EXPECT_EQ(
-            "[\n"
-            "  {0x0a, 0x0b},\n"
-            "  'foo',\n"
-            "  42,\n"
-            "  ['foo', 'bar', 'baz', ],\n"
-            "  {\n"
-            "    'foo' : 42,\n"
-            "    'bar' : 43,\n"
-            "    'baz' : 44,\n"
-            "  },\n"
-            "  {\n"
-            "    'deep1' : ['Some text', -42, ],\n"
-            "    'deep2' : {\n"
-            "      42 : 'foo',\n"
-            "      43 : 'bar',\n"
-            "      44 : 'baz',\n"
-            "    },\n"
-            "  },\n"
-            "]",
-            support::cborPrettyPrint(cppbor::Array(cppbor::Bstr(vector<uint8_t>{10, 11}),
-                                                   cppbor::Tstr("foo"), cppbor::Uint(42),
-                                                   std::move(array), std::move(map),
-                                                   (cppbor::Map()
-                                                            .add("deep1", std::move(array2))
-                                                            .add("deep2", std::move(map2))))
-                                             .encode()));
-}
-
 TEST(IdentityCredentialSupport, Signatures) {
     vector<uint8_t> data = {1, 2, 3};
 
@@ -219,7 +126,7 @@
     ASSERT_EQ(data, payload.value());
 
     // Finally, check that |coseSign1| are the bytes of a valid COSE_Sign1 message
-    string out = support::cborPrettyPrint(coseSign1.value());
+    string out = cppbor::prettyPrint(coseSign1.value());
     out = replaceLine(out, -2, "  [] // Signature Removed");
     EXPECT_EQ(
             "[\n"
@@ -250,7 +157,7 @@
     ASSERT_EQ(0, payload.value().size());
 
     // Finally, check that |coseSign1| are the bytes of a valid COSE_Sign1 message
-    string out = support::cborPrettyPrint(coseSign1.value());
+    string out = cppbor::prettyPrint(coseSign1.value());
     out = replaceLine(out, -2, "  [] // Signature Removed");
     EXPECT_EQ(
             "[\n"
@@ -411,7 +318,7 @@
             "0x86, 0x5c, 0x28, 0x2c, 0xd5, 0xa5, 0x13, 0xff, 0x3b, 0xd1, 0xde, 0x70, 0x5e, 0xbb, "
             "0xe2, 0x2d, 0x42, 0xbe, 0x53},\n"
             "]",
-            support::cborPrettyPrint(mac.value()));
+            cppbor::prettyPrint(mac.value()));
 }
 
 TEST(IdentityCredentialSupport, CoseMac0DetachedContent) {
@@ -433,7 +340,7 @@
             "0x86, 0x5c, 0x28, 0x2c, 0xd5, 0xa5, 0x13, 0xff, 0x3b, 0xd1, 0xde, 0x70, 0x5e, 0xbb, "
             "0xe2, 0x2d, 0x42, 0xbe, 0x53},\n"
             "]",
-            support::cborPrettyPrint(mac.value()));
+            cppbor::prettyPrint(mac.value()));
 }
 
 // Generates a private key in DER format for a small value of 'd'.
@@ -460,8 +367,8 @@
 
 const cppbor::Item* findValueForTstr(const cppbor::Map* map, const string& keyValue) {
     // TODO: Need cast until libcppbor's Map::get() is marked as const
-    auto [item, found] = ((cppbor::Map*)map)->get(keyValue);
-    if (!found) {
+    const auto& item = map->get(keyValue);
+    if (!item) {
         return nullptr;
     }
     return item.get();
@@ -483,12 +390,13 @@
     return item->asMap();
 }
 
-const cppbor::Semantic* findSemanticValueForTstr(const cppbor::Map* map, const string& keyValue) {
+const cppbor::SemanticTag* findSemanticValueForTstr(const cppbor::Map* map,
+                                                    const string& keyValue) {
     const cppbor::Item* item = findValueForTstr(map, keyValue);
     if (item == nullptr) {
         return nullptr;
     }
-    return item->asSemantic();
+    return item->asSemanticTag();
 }
 
 const std::string findStringValueForTstr(const cppbor::Map* map, const string& keyValue) {
@@ -576,11 +484,11 @@
     auto [sessionEstablishmentItem, _se, _se2] = cppbor::parse(sessionEstablishmentEncoded.value());
     const cppbor::Map* sessionEstablishment = sessionEstablishmentItem->asMap();
     ASSERT_NE(sessionEstablishment, nullptr);
-    const cppbor::Semantic* eReaderKeyBytes =
+    const cppbor::SemanticTag* eReaderKeyBytes =
             findSemanticValueForTstr(sessionEstablishment, "eReaderKeyBytes");
     ASSERT_NE(eReaderKeyBytes, nullptr);
-    ASSERT_EQ(eReaderKeyBytes->value(), 24);
-    const cppbor::Bstr* eReaderKeyBstr = eReaderKeyBytes->child()->asBstr();
+    ASSERT_EQ(eReaderKeyBytes->semanticTag(), 24);
+    const cppbor::Bstr* eReaderKeyBstr = eReaderKeyBytes->asBstr();
     ASSERT_NE(eReaderKeyBstr, nullptr);
     vector<uint8_t> eReaderKeyEncoded = eReaderKeyBstr->value();
     // TODO: verify this agrees with ephemeralReaderKeyX and ephemeralReaderKeyY
@@ -605,12 +513,12 @@
     //   SessionTranscriptBytes = #6.24(bstr .cbor SessionTranscript)
     //
     cppbor::Array sessionTranscript;
-    sessionTranscript.add(cppbor::Semantic(24, deviceEngagementEncoded));
-    sessionTranscript.add(cppbor::Semantic(24, eReaderKeyEncoded));
+    sessionTranscript.add(cppbor::SemanticTag(24, deviceEngagementEncoded));
+    sessionTranscript.add(cppbor::SemanticTag(24, eReaderKeyEncoded));
     sessionTranscript.add(cppbor::Null());
     vector<uint8_t> sessionTranscriptEncoded = sessionTranscript.encode();
     vector<uint8_t> sessionTranscriptBytes =
-            cppbor::Semantic(24, sessionTranscriptEncoded).encode();
+            cppbor::SemanticTag(24, sessionTranscriptEncoded).encode();
 
     // The expected EMacKey is 4c1ebb8aacc633465390fa44edfdb49cb57f2e079aaa771d812584699c0b97e2
     //
@@ -696,11 +604,11 @@
 
     // Dig out the encoded form of DeviceNameSpaces
     //
-    const cppbor::Semantic* deviceNameSpacesBytes =
+    const cppbor::SemanticTag* deviceNameSpacesBytes =
             findSemanticValueForTstr(deviceSigned, "nameSpaces");
     ASSERT_NE(deviceNameSpacesBytes, nullptr);
-    ASSERT_EQ(deviceNameSpacesBytes->value(), 24);
-    const cppbor::Bstr* deviceNameSpacesBstr = deviceNameSpacesBytes->child()->asBstr();
+    ASSERT_EQ(deviceNameSpacesBytes->semanticTag(), 24);
+    const cppbor::Bstr* deviceNameSpacesBstr = deviceNameSpacesBytes->asBstr();
     ASSERT_NE(deviceNameSpacesBstr, nullptr);
     vector<uint8_t> deviceNameSpacesEncoded = deviceNameSpacesBstr->value();
 
diff --git a/keymaster/aidl/aidl_api/android.hardware.keymaster/current/android/hardware/keymaster/HardwareAuthToken.aidl b/keymaster/aidl/aidl_api/android.hardware.keymaster/current/android/hardware/keymaster/HardwareAuthToken.aidl
index db1df2b..4f21cba 100644
--- a/keymaster/aidl/aidl_api/android.hardware.keymaster/current/android/hardware/keymaster/HardwareAuthToken.aidl
+++ b/keymaster/aidl/aidl_api/android.hardware.keymaster/current/android/hardware/keymaster/HardwareAuthToken.aidl
@@ -21,7 +21,7 @@
   long challenge;
   long userId;
   long authenticatorId;
-  android.hardware.keymaster.HardwareAuthenticatorType authenticatorType;
+  android.hardware.keymaster.HardwareAuthenticatorType authenticatorType = android.hardware.keymaster.HardwareAuthenticatorType.NONE;
   android.hardware.keymaster.Timestamp timestamp;
   byte[] mac;
 }
diff --git a/keymaster/aidl/aidl_api/android.hardware.keymaster/current/android/hardware/keymaster/VerificationToken.aidl b/keymaster/aidl/aidl_api/android.hardware.keymaster/current/android/hardware/keymaster/VerificationToken.aidl
index 0633765..b116dac 100644
--- a/keymaster/aidl/aidl_api/android.hardware.keymaster/current/android/hardware/keymaster/VerificationToken.aidl
+++ b/keymaster/aidl/aidl_api/android.hardware.keymaster/current/android/hardware/keymaster/VerificationToken.aidl
@@ -20,6 +20,6 @@
 parcelable VerificationToken {
   long challenge;
   android.hardware.keymaster.Timestamp timestamp;
-  android.hardware.keymaster.SecurityLevel securityLevel;
+  android.hardware.keymaster.SecurityLevel securityLevel = android.hardware.keymaster.SecurityLevel.SOFTWARE;
   byte[] mac;
 }
diff --git a/keymaster/aidl/android/hardware/keymaster/HardwareAuthToken.aidl b/keymaster/aidl/android/hardware/keymaster/HardwareAuthToken.aidl
index 58602aa..99b036a 100644
--- a/keymaster/aidl/android/hardware/keymaster/HardwareAuthToken.aidl
+++ b/keymaster/aidl/android/hardware/keymaster/HardwareAuthToken.aidl
@@ -55,7 +55,7 @@
      * authenticatorType describes the type of authentication that took place, e.g. password or
      * fingerprint.
      */
-    HardwareAuthenticatorType authenticatorType;
+    HardwareAuthenticatorType authenticatorType = HardwareAuthenticatorType.NONE;
 
     /**
      * timestamp indicates when the user authentication took place, in milliseconds since some
diff --git a/keymaster/aidl/android/hardware/keymaster/VerificationToken.aidl b/keymaster/aidl/android/hardware/keymaster/VerificationToken.aidl
index f053254..5efd937 100644
--- a/keymaster/aidl/android/hardware/keymaster/VerificationToken.aidl
+++ b/keymaster/aidl/android/hardware/keymaster/VerificationToken.aidl
@@ -43,7 +43,7 @@
     /**
      * SecurityLevel of the secure environment that generated the token.
      */
-    SecurityLevel securityLevel;
+    SecurityLevel securityLevel = SecurityLevel.SOFTWARE;
 
     /**
      * 32-byte HMAC-SHA256 of the above values, computed as:
diff --git a/neuralnetworks/1.0/utils/include/nnapi/hal/1.0/Device.h b/neuralnetworks/1.0/utils/include/nnapi/hal/1.0/Device.h
index 4681b9e..db3b2ad 100644
--- a/neuralnetworks/1.0/utils/include/nnapi/hal/1.0/Device.h
+++ b/neuralnetworks/1.0/utils/include/nnapi/hal/1.0/Device.h
@@ -52,7 +52,6 @@
     const std::string& getVersionString() const override;
     nn::Version getFeatureLevel() const override;
     nn::DeviceType getType() const override;
-    bool isUpdatable() const override;
     const std::vector<nn::Extension>& getSupportedExtensions() const override;
     const nn::Capabilities& getCapabilities() const override;
     std::pair<uint32_t, uint32_t> getNumberOfCacheFilesNeeded() const override;
diff --git a/neuralnetworks/1.0/utils/src/Device.cpp b/neuralnetworks/1.0/utils/src/Device.cpp
index bb31a26..93bd81a 100644
--- a/neuralnetworks/1.0/utils/src/Device.cpp
+++ b/neuralnetworks/1.0/utils/src/Device.cpp
@@ -106,10 +106,6 @@
     return nn::DeviceType::OTHER;
 }
 
-bool Device::isUpdatable() const {
-    return false;
-}
-
 const std::vector<nn::Extension>& Device::getSupportedExtensions() const {
     return kExtensions;
 }
diff --git a/neuralnetworks/1.1/utils/include/nnapi/hal/1.1/Device.h b/neuralnetworks/1.1/utils/include/nnapi/hal/1.1/Device.h
index 3aec8ee..5e224b5 100644
--- a/neuralnetworks/1.1/utils/include/nnapi/hal/1.1/Device.h
+++ b/neuralnetworks/1.1/utils/include/nnapi/hal/1.1/Device.h
@@ -52,7 +52,6 @@
     const std::string& getVersionString() const override;
     nn::Version getFeatureLevel() const override;
     nn::DeviceType getType() const override;
-    bool isUpdatable() const override;
     const std::vector<nn::Extension>& getSupportedExtensions() const override;
     const nn::Capabilities& getCapabilities() const override;
     std::pair<uint32_t, uint32_t> getNumberOfCacheFilesNeeded() const override;
diff --git a/neuralnetworks/1.1/utils/src/Device.cpp b/neuralnetworks/1.1/utils/src/Device.cpp
index d2ef57f..3197ef4 100644
--- a/neuralnetworks/1.1/utils/src/Device.cpp
+++ b/neuralnetworks/1.1/utils/src/Device.cpp
@@ -106,10 +106,6 @@
     return nn::DeviceType::UNKNOWN;
 }
 
-bool Device::isUpdatable() const {
-    return false;
-}
-
 const std::vector<nn::Extension>& Device::getSupportedExtensions() const {
     return kExtensions;
 }
diff --git a/neuralnetworks/1.2/types.hal b/neuralnetworks/1.2/types.hal
index 03aed86..f5b6ead 100644
--- a/neuralnetworks/1.2/types.hal
+++ b/neuralnetworks/1.2/types.hal
@@ -3618,7 +3618,7 @@
      *      front of dimension i.
      *      padding[i, 1] specifies the number of elements to be padded after
      *      the end of dimension i.
-     * * 2: An scalar specifying the value to use for padding input0.
+     * * 2: A scalar specifying the value to use for padding input0.
      *      For input tensor of {@link OperandType::TENSOR_FLOAT16}, the
      *      pad value must be of {@link OperandType::FLOAT16}.
      *      For input tensor of {@link OperandType::TENSOR_FLOAT32}, the
diff --git a/neuralnetworks/1.2/utils/include/nnapi/hal/1.2/Device.h b/neuralnetworks/1.2/utils/include/nnapi/hal/1.2/Device.h
index 489f857..b4bef5e 100644
--- a/neuralnetworks/1.2/utils/include/nnapi/hal/1.2/Device.h
+++ b/neuralnetworks/1.2/utils/include/nnapi/hal/1.2/Device.h
@@ -71,7 +71,6 @@
     const std::string& getVersionString() const override;
     nn::Version getFeatureLevel() const override;
     nn::DeviceType getType() const override;
-    bool isUpdatable() const override;
     const std::vector<nn::Extension>& getSupportedExtensions() const override;
     const nn::Capabilities& getCapabilities() const override;
     std::pair<uint32_t, uint32_t> getNumberOfCacheFilesNeeded() const override;
diff --git a/neuralnetworks/1.2/utils/src/Device.cpp b/neuralnetworks/1.2/utils/src/Device.cpp
index 1954dfa..9fe0de2 100644
--- a/neuralnetworks/1.2/utils/src/Device.cpp
+++ b/neuralnetworks/1.2/utils/src/Device.cpp
@@ -199,10 +199,6 @@
     return kDeviceType;
 }
 
-bool Device::isUpdatable() const {
-    return false;
-}
-
 const std::vector<nn::Extension>& Device::getSupportedExtensions() const {
     return kExtensions;
 }
diff --git a/neuralnetworks/1.3/types.hal b/neuralnetworks/1.3/types.hal
index a5dbd5e..a26b858 100644
--- a/neuralnetworks/1.3/types.hal
+++ b/neuralnetworks/1.3/types.hal
@@ -3834,7 +3834,7 @@
      *      front of dimension i.
      *      padding[i, 1] specifies the number of elements to be padded after
      *      the end of dimension i.
-     * * 2: An scalar specifying the value to use for padding input0.
+     * * 2: A scalar specifying the value to use for padding input0.
      *      For input tensor of {@link OperandType::TENSOR_FLOAT16}, the
      *      pad value must be of {@link OperandType::FLOAT16}.
      *      For input tensor of {@link OperandType::TENSOR_FLOAT32}, the
diff --git a/neuralnetworks/1.3/utils/include/nnapi/hal/1.3/Device.h b/neuralnetworks/1.3/utils/include/nnapi/hal/1.3/Device.h
index f36b6c0..84f606a 100644
--- a/neuralnetworks/1.3/utils/include/nnapi/hal/1.3/Device.h
+++ b/neuralnetworks/1.3/utils/include/nnapi/hal/1.3/Device.h
@@ -54,7 +54,6 @@
     const std::string& getVersionString() const override;
     nn::Version getFeatureLevel() const override;
     nn::DeviceType getType() const override;
-    bool isUpdatable() const override;
     const std::vector<nn::Extension>& getSupportedExtensions() const override;
     const nn::Capabilities& getCapabilities() const override;
     std::pair<uint32_t, uint32_t> getNumberOfCacheFilesNeeded() const override;
diff --git a/neuralnetworks/1.3/utils/src/Device.cpp b/neuralnetworks/1.3/utils/src/Device.cpp
index 87c9f32..d710b85 100644
--- a/neuralnetworks/1.3/utils/src/Device.cpp
+++ b/neuralnetworks/1.3/utils/src/Device.cpp
@@ -150,10 +150,6 @@
     return kDeviceType;
 }
 
-bool Device::isUpdatable() const {
-    return false;
-}
-
 const std::vector<nn::Extension>& Device::getSupportedExtensions() const {
     return kExtensions;
 }
diff --git a/neuralnetworks/aidl/Android.bp b/neuralnetworks/aidl/Android.bp
index b1860e2..ebf4654 100644
--- a/neuralnetworks/aidl/Android.bp
+++ b/neuralnetworks/aidl/Android.bp
@@ -16,6 +16,7 @@
     stability: "vintf",
     imports: [
         "android.hardware.common",
+        "android.hardware.graphics.common",
     ],
     backend: {
         java: {
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IBurst.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IBurst.aidl
index 634f39e..eb3d0b0 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IBurst.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IBurst.aidl
@@ -34,6 +34,6 @@
 package android.hardware.neuralnetworks;
 @VintfStability
 interface IBurst {
-  android.hardware.neuralnetworks.ExecutionResult executeSynchronously(in android.hardware.neuralnetworks.Request request, in long[] memoryIdentifierTokens, in boolean measureTiming, in long deadline, in long loopTimeoutDuration);
+  android.hardware.neuralnetworks.ExecutionResult executeSynchronously(in android.hardware.neuralnetworks.Request request, in long[] memoryIdentifierTokens, in boolean measureTiming, in long deadlineNs, in long loopTimeoutDurationNs);
   void releaseMemoryResource(in long memoryIdentifierToken);
 }
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IDevice.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IDevice.aidl
index b328b29..c9c67f2 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IDevice.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IDevice.aidl
@@ -41,8 +41,8 @@
   boolean[] getSupportedOperations(in android.hardware.neuralnetworks.Model model);
   android.hardware.neuralnetworks.DeviceType getType();
   String getVersionString();
-  void prepareModel(in android.hardware.neuralnetworks.Model model, in android.hardware.neuralnetworks.ExecutionPreference preference, in android.hardware.neuralnetworks.Priority priority, in long deadline, in ParcelFileDescriptor[] modelCache, in ParcelFileDescriptor[] dataCache, in byte[] token, in android.hardware.neuralnetworks.IPreparedModelCallback callback);
-  void prepareModelFromCache(in long deadline, in ParcelFileDescriptor[] modelCache, in ParcelFileDescriptor[] dataCache, in byte[] token, in android.hardware.neuralnetworks.IPreparedModelCallback callback);
+  void prepareModel(in android.hardware.neuralnetworks.Model model, in android.hardware.neuralnetworks.ExecutionPreference preference, in android.hardware.neuralnetworks.Priority priority, in long deadlineNs, in ParcelFileDescriptor[] modelCache, in ParcelFileDescriptor[] dataCache, in byte[] token, in android.hardware.neuralnetworks.IPreparedModelCallback callback);
+  void prepareModelFromCache(in long deadlineNs, in ParcelFileDescriptor[] modelCache, in ParcelFileDescriptor[] dataCache, in byte[] token, in android.hardware.neuralnetworks.IPreparedModelCallback callback);
   const int BYTE_SIZE_OF_CACHE_TOKEN = 32;
   const int MAX_NUMBER_OF_CACHE_FILES = 32;
   const int EXTENSION_TYPE_HIGH_BITS_PREFIX = 15;
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModel.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModel.aidl
index 52882cd..fccb5dc 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModel.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModel.aidl
@@ -34,8 +34,8 @@
 package android.hardware.neuralnetworks;
 @VintfStability
 interface IPreparedModel {
-  android.hardware.neuralnetworks.ExecutionResult executeSynchronously(in android.hardware.neuralnetworks.Request request, in boolean measureTiming, in long deadline, in long loopTimeoutDuration);
-  android.hardware.neuralnetworks.FencedExecutionResult executeFenced(in android.hardware.neuralnetworks.Request request, in ParcelFileDescriptor[] waitFor, in boolean measureTiming, in long deadline, in long loopTimeoutDuration, in long duration);
+  android.hardware.neuralnetworks.ExecutionResult executeSynchronously(in android.hardware.neuralnetworks.Request request, in boolean measureTiming, in long deadlineNs, in long loopTimeoutDurationNs);
+  android.hardware.neuralnetworks.FencedExecutionResult executeFenced(in android.hardware.neuralnetworks.Request request, in ParcelFileDescriptor[] waitFor, in boolean measureTiming, in long deadlineNs, in long loopTimeoutDurationNs, in long durationNs);
   android.hardware.neuralnetworks.IBurst configureExecutionBurst();
   const long DEFAULT_LOOP_TIMEOUT_DURATION_NS = 2000000000;
   const long MAXIMUM_LOOP_TIMEOUT_DURATION_NS = 15000000000;
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Memory.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Memory.aidl
index 8207b25..37fa102 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Memory.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Memory.aidl
@@ -33,8 +33,8 @@
 
 package android.hardware.neuralnetworks;
 @VintfStability
-parcelable Memory {
-  android.hardware.common.NativeHandle handle;
-  long size;
-  String name;
+union Memory {
+  android.hardware.common.Ashmem ashmem;
+  android.hardware.common.MappableFile mappableFile;
+  android.hardware.graphics.common.HardwareBuffer hardwareBuffer;
 }
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operand.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operand.aidl
index 5a9f4ff..1d9bdd8 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operand.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operand.aidl
@@ -34,11 +34,11 @@
 package android.hardware.neuralnetworks;
 @VintfStability
 parcelable Operand {
-  android.hardware.neuralnetworks.OperandType type;
+  android.hardware.neuralnetworks.OperandType type = android.hardware.neuralnetworks.OperandType.FLOAT32;
   int[] dimensions;
   float scale;
   int zeroPoint;
-  android.hardware.neuralnetworks.OperandLifeTime lifetime;
+  android.hardware.neuralnetworks.OperandLifeTime lifetime = android.hardware.neuralnetworks.OperandLifeTime.TEMPORARY_VARIABLE;
   android.hardware.neuralnetworks.DataLocation location;
   @nullable android.hardware.neuralnetworks.OperandExtraParams extraParams;
 }
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandPerformance.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandPerformance.aidl
index de93d8b..ebb361b 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandPerformance.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandPerformance.aidl
@@ -34,6 +34,6 @@
 package android.hardware.neuralnetworks;
 @VintfStability
 parcelable OperandPerformance {
-  android.hardware.neuralnetworks.OperandType type;
+  android.hardware.neuralnetworks.OperandType type = android.hardware.neuralnetworks.OperandType.FLOAT32;
   android.hardware.neuralnetworks.PerformanceInfo info;
 }
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operation.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operation.aidl
index 33fcd60..a4a3fbe 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operation.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operation.aidl
@@ -34,7 +34,7 @@
 package android.hardware.neuralnetworks;
 @VintfStability
 parcelable Operation {
-  android.hardware.neuralnetworks.OperationType type;
+  android.hardware.neuralnetworks.OperationType type = android.hardware.neuralnetworks.OperationType.ADD;
   int[] inputs;
   int[] outputs;
 }
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Timing.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Timing.aidl
index 9690e01..bcc83cf 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Timing.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Timing.aidl
@@ -34,6 +34,6 @@
 package android.hardware.neuralnetworks;
 @VintfStability
 parcelable Timing {
-  long timeOnDevice;
-  long timeInDriver;
+  long timeOnDeviceNs;
+  long timeInDriverNs;
 }
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/FusedActivationFunc.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/FusedActivationFunc.aidl
index 861b6f0..df015ca 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/FusedActivationFunc.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/FusedActivationFunc.aidl
@@ -22,8 +22,20 @@
 @VintfStability
 @Backing(type="int")
 enum FusedActivationFunc {
+    /**
+     * No activation.
+     */
     NONE,
+    /**
+     * ReLU(x) = max(0, x)
+     */
     RELU,
+    /**
+     * ReLU1(x) = min(1, max(-1, x))
+     */
     RELU1,
+    /**
+     * ReLU6(x) = min(6, max(0, x))
+     */
     RELU6,
 }
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IBurst.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IBurst.aidl
index 85d2a03..decdc48 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IBurst.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IBurst.aidl
@@ -77,18 +77,18 @@
      * @param measure Specifies whether or not to measure duration of the execution. The duration
      *                runs from the time the driver sees the call to the executeSynchronously
      *                function to the time the driver returns from the function.
-     * @param deadline The time by which the execution is expected to complete. The time is measured
-     *                 in nanoseconds since epoch of the steady clock (as from
-     *                 std::chrono::steady_clock). If the execution cannot be finished by the
-     *                 deadline, the execution may be aborted. Passing -1 means the deadline is
-     *                 omitted. Other negative values are invalid.
-     * @param loopTimeoutDuration The maximum amount of time in nanoseconds that should be spent
-     *                            executing a {@link OperationType::WHILE} operation. If a loop
-     *                            condition model does not output false within this duration, the
-     *                            execution must be aborted. If -1 is provided, the maximum amount
-     *                            of time is {@link DEFAULT_LOOP_TIMEOUT_DURATION_NS}. Other
-     *                            negative values are invalid. When provided, the duration must not
-     *                            exceed {@link MAXIMUM_LOOP_TIMEOUT_DURATION_NS}.
+     * @param deadlineNs The time by which the execution is expected to complete. The time is
+     *                   measured in nanoseconds since epoch of the steady clock (as from
+     *                   std::chrono::steady_clock). If the execution cannot be finished by the
+     *                   deadline, the execution may be aborted. Passing -1 means the deadline is
+     *                   omitted. Other negative values are invalid.
+     * @param loopTimeoutDurationNs The maximum amount of time in nanoseconds that should be spent
+     *                              executing a {@link OperationType::WHILE} operation. If a loop
+     *                              condition model does not output false within this duration, the
+     *                              execution must be aborted. If -1 is provided, the maximum amount
+     *                              of time is {@link DEFAULT_LOOP_TIMEOUT_DURATION_NS}. Other
+     *                              negative values are invalid. When provided, the duration must
+     *                              not exceed {@link MAXIMUM_LOOP_TIMEOUT_DURATION_NS}.
      * @return ExecutionResult parcelable, containing the status of the execution, output shapes and
      *     timing information.
      * @throws ServiceSpecificException with one of the following ErrorStatus values:
@@ -100,7 +100,7 @@
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
     ExecutionResult executeSynchronously(in Request request, in long[] memoryIdentifierTokens,
-            in boolean measureTiming, in long deadline, in long loopTimeoutDuration);
+            in boolean measureTiming, in long deadlineNs, in long loopTimeoutDurationNs);
 
     /**
      * releaseMemoryResource is used by the client to signal to the service that a memory buffer
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl
index c5b4ab1..72e2623 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl
@@ -306,11 +306,11 @@
      * @param preference Indicates the intended execution behavior of a prepared model.
      * @param priority The priority of the prepared model relative to other prepared models owned by
      *                 the client.
-     * @param deadline The time by which the model is expected to be prepared. The time is measured
-     *                 in nanoseconds since boot (as from clock_gettime(CLOCK_BOOTTIME, &ts)
-     *                 or ::android::base::boot_clock). If the model cannot be prepared by the
-     *                 deadline, the preparation may be aborted. Passing -1 means the deadline is
-     *                 omitted. Other negative values are invalid.
+     * @param deadlineNs The time by which the model is expected to be prepared. The time is
+     *                   measured in nanoseconds since boot (as from clock_gettime(CLOCK_BOOTTIME,
+     *                   &ts) or ::android::base::boot_clock). If the model cannot be prepared by
+     *                   the deadline, the preparation may be aborted. Passing -1 means the deadline
+     *                   is omitted. Other negative values are invalid.
      * @param modelCache A vector of file descriptors for the security-sensitive cache. The length
      *                   of the vector must either be 0 indicating that caching information is not
      *                   provided, or match the numModelCache returned from
@@ -344,7 +344,7 @@
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
     void prepareModel(in Model model, in ExecutionPreference preference, in Priority priority,
-            in long deadline, in ParcelFileDescriptor[] modelCache,
+            in long deadlineNs, in ParcelFileDescriptor[] modelCache,
             in ParcelFileDescriptor[] dataCache, in byte[] token,
             in IPreparedModelCallback callback);
 
@@ -395,11 +395,11 @@
      * with a set of inputs to the model. Note that the same prepared model object may be used with
      * different shapes of inputs on different (possibly concurrent) executions.
      *
-     * @param deadline The time by which the model is expected to be prepared. The time is measured
-     *                 in nanoseconds since boot (as from clock_gettime(CLOCK_BOOTTIME, &ts) or
-     *                 ::android::base::boot_clock). If the model cannot be prepared by the
-     *                 deadline, the preparation may be aborted. Passing -1 means the deadline is
-     *                 omitted. Other negative values are invalid.
+     * @param deadlineNs The time by which the model is expected to be prepared. The time is
+     *                   measured in nanoseconds since boot (as from clock_gettime(CLOCK_BOOTTIME,
+     *                   &ts) or ::android::base::boot_clock). If the model cannot be prepared by
+     *                   the deadline, the preparation may be aborted. Passing -1 means the deadline
+     *                   is omitted. Other negative values are invalid.
      * @param modelCache A vector of file descriptors for the security-sensitive cache. The length
      *                   of the vector must match the numModelCache returned from
      *                   getNumberOfCacheFilesNeeded. The cache file descriptors will be provided in
@@ -426,7 +426,7 @@
      *       the deadline
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
-    void prepareModelFromCache(in long deadline, in ParcelFileDescriptor[] modelCache,
+    void prepareModelFromCache(in long deadlineNs, in ParcelFileDescriptor[] modelCache,
             in ParcelFileDescriptor[] dataCache, in byte[] token,
             in IPreparedModelCallback callback);
 }
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl
index bfab906..956b626 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl
@@ -72,18 +72,18 @@
      * @param measure Specifies whether or not to measure duration of the execution. The duration
      *                runs from the time the driver sees the call to the executeSynchronously
      *                function to the time the driver returns from the function.
-     * @param deadline The time by which the execution is expected to complete. The time is measured
-     *                 in nanoseconds since boot (as from clock_gettime(CLOCK_BOOTTIME, &ts) or
-     *                 ::android::base::boot_clock). If the execution cannot be finished by the
-     *                 deadline, the execution may be aborted. Passing -1 means the deadline is
-     *                 omitted. Other negative values are invalid.
-     * @param loopTimeoutDuration The maximum amount of time in nanoseconds that should be spent
-     *                            executing a {@link OperationType::WHILE} operation. If a loop
-     *                            condition model does not output false within this duration, the
-     *                            execution must be aborted. If -1 is provided, the maximum amount
-     *                            of time is {@link DEFAULT_LOOP_TIMEOUT_DURATION_NS}. Other
-     *                            negative values are invalid. When provided, the duration must not
-     *                            exceed {@link MAXIMUM_LOOP_TIMEOUT_DURATION_NS}.
+     * @param deadlineNs The time by which the execution is expected to complete. The time is
+     *                   measured in nanoseconds since boot (as from clock_gettime(CLOCK_BOOTTIME,
+     *                   &ts) or ::android::base::boot_clock). If the execution cannot be finished
+     *                   by the deadline, the execution may be aborted. Passing -1 means the
+     *                   deadline is omitted. Other negative values are invalid.
+     * @param loopTimeoutDurationNs The maximum amount of time in nanoseconds that should be spent
+     *                              executing a {@link OperationType::WHILE} operation. If a loop
+     *                              condition model does not output false within this duration, the
+     *                              execution must be aborted. If -1 is provided, the maximum amount
+     *                              of time is {@link DEFAULT_LOOP_TIMEOUT_DURATION_NS}. Other
+     *                              negative values are invalid. When provided, the duration must
+     *                              not exceed {@link MAXIMUM_LOOP_TIMEOUT_DURATION_NS}.
      * @return ExecutionResult parcelable, containing the status of the execution, output shapes and
      *     timing information.
      * @throws ServiceSpecificException with one of the following ErrorStatus values:
@@ -95,7 +95,7 @@
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
     ExecutionResult executeSynchronously(in Request request, in boolean measureTiming,
-            in long deadline, in long loopTimeoutDuration);
+            in long deadlineNs, in long loopTimeoutDurationNs);
 
     /**
      * Launch a fenced asynchronous execution on a prepared model.
@@ -137,22 +137,23 @@
      * @param waitFor A vector of sync fence file descriptors. Execution must not start until all
      *                sync fences have been signaled.
      * @param measure Specifies whether or not to measure duration of the execution.
-     * @param deadline The time by which the execution is expected to complete. The time is measured
-     *                 in nanoseconds since boot (as from clock_gettime(CLOCK_BOOTTIME, &ts) or
-     *                 ::android::base::boot_clock). If the execution cannot be finished by the
-     *                 deadline, the execution may be aborted. Passing -1 means the deadline is
-     *                 omitted. Other negative values are invalid.
-     * @param loopTimeoutDuration The maximum amount of time in nanoseconds that should be spent
-     *                            executing a {@link OperationType::WHILE} operation. If a loop
-     *                            condition model does not output false within this duration, the
-     *                            execution must be aborted. If -1 is provided, the maximum amount
-     *                            of time is {@link DEFAULT_LOOP_TIMEOUT_DURATION_NS}. Other
-     *                            negative values are invalid. When provided, the duration must not
-     *                            exceed {@link MAXIMUM_LOOP_TIMEOUT_DURATION_NS}.
-     * @param duration The length of time in nanoseconds within which the execution is expected to
-     *                 complete after all sync fences in waitFor are signaled. If the execution
-     *                 cannot be finished within the duration, the execution may be aborted. Passing
-     *                 -1 means the duration is omitted. Other negative values are invalid.
+     * @param deadlineNs The time by which the execution is expected to complete. The time is
+     *                   measured in nanoseconds since boot (as from clock_gettime(CLOCK_BOOTTIME,
+     *                   &ts) or ::android::base::boot_clock). If the execution cannot be finished
+     *                   by the deadline, the execution may be aborted. Passing -1 means the
+     *                   deadline is omitted. Other negative values are invalid.
+     * @param loopTimeoutDurationNs The maximum amount of time in nanoseconds that should be spent
+     *                              executing a {@link OperationType::WHILE} operation. If a loop
+     *                              condition model does not output false within this duration, the
+     *                              execution must be aborted. If -1 is provided, the maximum amount
+     *                              of time is {@link DEFAULT_LOOP_TIMEOUT_DURATION_NS}. Other
+     *                              negative values are invalid. When provided, the duration must
+     *                              not exceed {@link MAXIMUM_LOOP_TIMEOUT_DURATION_NS}.
+     * @param durationNs The length of time in nanoseconds within which the execution is expected to
+     *                   complete after all sync fences in waitFor are signaled. If the execution
+     *                   cannot be finished within the duration, the execution may be aborted.
+     *                   Passing -1 means the duration is omitted. Other negative values are
+     *                   invalid.
      * @return The FencedExecutionResult parcelable, containing IFencedExecutionCallback and the
      *         sync fence.
      * @throws ServiceSpecificException with one of the following ErrorStatus values:
@@ -165,8 +166,8 @@
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
     FencedExecutionResult executeFenced(in Request request, in ParcelFileDescriptor[] waitFor,
-            in boolean measureTiming, in long deadline, in long loopTimeoutDuration,
-            in long duration);
+            in boolean measureTiming, in long deadlineNs, in long loopTimeoutDurationNs,
+            in long durationNs);
 
     /**
      * Configure a Burst object used to execute multiple inferences on a prepared model in rapid
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Memory.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Memory.aidl
index 870f0ae..244ac87 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Memory.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Memory.aidl
@@ -15,16 +15,26 @@
  */
 
 package android.hardware.neuralnetworks;
-import android.hardware.common.NativeHandle;
-import android.os.ParcelFileDescriptor;
+
+import android.hardware.common.Ashmem;
+import android.hardware.common.MappableFile;
+import android.hardware.graphics.common.HardwareBuffer;
 
 /**
- * A type that is used to pass pieces of shared memory between processes.
- * The type structure mimics hidl_memory type from HIDL.
+ * The different types of memory that can be shared across processes.
  */
 @VintfStability
-parcelable Memory {
-    NativeHandle handle;
-    long size;
-    String name;
+union Memory {
+    /**
+     * Ashmem hidl_memory type from HIDL.
+     */
+    Ashmem ashmem;
+    /**
+     * File that can be mapped.
+     */
+    MappableFile mappableFile;
+    /**
+     * AIDL representation of AHardwareBuffer.
+     */
+    HardwareBuffer hardwareBuffer;
 }
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Operand.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Operand.aidl
index 4d2260f..998e06d 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Operand.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Operand.aidl
@@ -33,7 +33,7 @@
      * {@link IDevice::OPERAND_TYPE_BASE_MAX} is possible and should be interpreted as an extension
      * type according to {@link Model::extensionNameToPrefix}.
      */
-    OperandType type;
+    OperandType type = OperandType.FLOAT32;
     /**
      * Dimensions of the operand.
      *
@@ -86,7 +86,7 @@
     /**
      * How the operand is used.
      */
-    OperandLifeTime lifetime;
+    OperandLifeTime lifetime = OperandLifeTime.TEMPORARY_VARIABLE;
     /**
      * Where to find the data for this operand.
      * If the lifetime is TEMPORARY_VARIABLE, SUBGRAPH_INPUT, SUBGRAPH_OUTPUT, or NO_VALUE:
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandPerformance.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandPerformance.aidl
index 7fd86f9..7f53967 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandPerformance.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandPerformance.aidl
@@ -25,6 +25,6 @@
  */
 @VintfStability
 parcelable OperandPerformance {
-    OperandType type;
+    OperandType type = OperandType.FLOAT32;
     PerformanceInfo info;
 }
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Operation.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Operation.aidl
index 0c6032f..366d9a4 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Operation.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Operation.aidl
@@ -30,7 +30,7 @@
      * {@link IDevice::OPERATION_TYPE_BASE_MAX} is possible and should be interpreted as an
      * extension type according to {@link Model::extensionNameToPrefix}.
      */
-    OperationType type;
+    OperationType type = OperationType.ADD;
     /**
      * Describes the table that contains the indexes of the inputs of the operation. The offset is
      * the index in the operandIndexes table.
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperationType.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperationType.aidl
index 3f49154..e7fb90d 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperationType.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperationType.aidl
@@ -3693,7 +3693,7 @@
      *      front of dimension i.
      *      padding[i, 1] specifies the number of elements to be padded after
      *      the end of dimension i.
-     * * 2: An scalar specifying the value to use for padding input0.
+     * * 2: A scalar specifying the value to use for padding input0.
      *      For input tensor of {@link OperandType::TENSOR_FLOAT16}, the
      *      pad value must be of {@link OperandType::FLOAT16}.
      *      For input tensor of {@link OperandType::TENSOR_FLOAT32}, the
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Timing.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Timing.aidl
index 8130e08..5225096 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Timing.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Timing.aidl
@@ -28,9 +28,9 @@
     /**
      * Execution time on device (not driver, which runs on host processor).
      */
-    long timeOnDevice;
+    long timeOnDeviceNs;
     /**
      * Execution time in driver (including time on device).
      */
-    long timeInDriver;
+    long timeInDriverNs;
 }
diff --git a/neuralnetworks/aidl/utils/Android.bp b/neuralnetworks/aidl/utils/Android.bp
index ad961cf..0ccc711 100644
--- a/neuralnetworks/aidl/utils/Android.bp
+++ b/neuralnetworks/aidl/utils/Android.bp
@@ -31,6 +31,8 @@
     export_include_dirs: ["include"],
     cflags: ["-Wthread-safety"],
     static_libs: [
+        "android.hardware.graphics.common-V2-ndk_platform",
+        "libaidlcommonsupport",
         "libarect",
         "neuralnetworks_types",
         "neuralnetworks_utils_hal_common",
@@ -51,7 +53,9 @@
     ],
     static_libs: [
         "android.hardware.common-V2-ndk_platform",
+        "android.hardware.graphics.common-V2-ndk_platform",
         "android.hardware.neuralnetworks-V1-ndk_platform",
+        "libaidlcommonsupport",
         "libgmock",
         "libneuralnetworks_common",
         "neuralnetworks_types",
diff --git a/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Device.h b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Device.h
index eb194e3..1457646 100644
--- a/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Device.h
+++ b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/Device.h
@@ -54,7 +54,6 @@
     const std::string& getVersionString() const override;
     nn::Version getFeatureLevel() const override;
     nn::DeviceType getType() const override;
-    bool isUpdatable() const override;
     const std::vector<nn::Extension>& getSupportedExtensions() const override;
     const nn::Capabilities& getCapabilities() const override;
     std::pair<uint32_t, uint32_t> getNumberOfCacheFilesNeeded() const override;
diff --git a/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/InvalidDevice.h b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/InvalidDevice.h
new file mode 100644
index 0000000..e66507a
--- /dev/null
+++ b/neuralnetworks/aidl/utils/include/nnapi/hal/aidl/InvalidDevice.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/neuralnetworks/BnBuffer.h>
+#include <aidl/android/hardware/neuralnetworks/BnDevice.h>
+#include <aidl/android/hardware/neuralnetworks/BnPreparedModel.h>
+#include <android/binder_auto_utils.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace aidl::android::hardware::neuralnetworks {
+
+class InvalidDevice : public BnDevice {
+  public:
+    static std::shared_ptr<InvalidDevice> create();
+
+    InvalidDevice(Capabilities capabilities, const NumberOfCacheFiles& numberOfCacheFiles,
+                  std::vector<Extension> extensions, DeviceType deviceType,
+                  std::string versionString);
+
+    ndk::ScopedAStatus allocate(const BufferDesc& desc,
+                                const std::vector<IPreparedModelParcel>& preparedModels,
+                                const std::vector<BufferRole>& inputRoles,
+                                const std::vector<BufferRole>& outputRoles,
+                                DeviceBuffer* deviceBuffer) override;
+    ndk::ScopedAStatus getCapabilities(Capabilities* capabilities) override;
+    ndk::ScopedAStatus getNumberOfCacheFilesNeeded(NumberOfCacheFiles* numberOfCacheFiles) override;
+    ndk::ScopedAStatus getSupportedExtensions(std::vector<Extension>* extensions) override;
+    ndk::ScopedAStatus getSupportedOperations(const Model& model,
+                                              std::vector<bool>* supportedOperations) override;
+    ndk::ScopedAStatus getType(DeviceType* deviceType) override;
+    ndk::ScopedAStatus getVersionString(std::string* versionString) override;
+    ndk::ScopedAStatus prepareModel(
+            const Model& model, ExecutionPreference preference, Priority priority, int64_t deadline,
+            const std::vector<ndk::ScopedFileDescriptor>& modelCache,
+            const std::vector<ndk::ScopedFileDescriptor>& dataCache,
+            const std::vector<uint8_t>& token,
+            const std::shared_ptr<IPreparedModelCallback>& callback) override;
+    ndk::ScopedAStatus prepareModelFromCache(
+            int64_t deadline, const std::vector<ndk::ScopedFileDescriptor>& modelCache,
+            const std::vector<ndk::ScopedFileDescriptor>& dataCache,
+            const std::vector<uint8_t>& token,
+            const std::shared_ptr<IPreparedModelCallback>& callback) override;
+
+  private:
+    const Capabilities kCapabilities;
+    const NumberOfCacheFiles kNumberOfCacheFiles;
+    const std::vector<Extension> kExtensions;
+    const DeviceType kDeviceType;
+    const std::string kVersionString;
+};
+
+}  // namespace aidl::android::hardware::neuralnetworks
diff --git a/neuralnetworks/aidl/utils/src/Conversions.cpp b/neuralnetworks/aidl/utils/src/Conversions.cpp
index d5f7f81..4b263ee 100644
--- a/neuralnetworks/aidl/utils/src/Conversions.cpp
+++ b/neuralnetworks/aidl/utils/src/Conversions.cpp
@@ -16,8 +16,13 @@
 
 #include "Conversions.h"
 
+#include <aidl/android/hardware/common/Ashmem.h>
+#include <aidl/android/hardware/common/MappableFile.h>
 #include <aidl/android/hardware/common/NativeHandle.h>
+#include <aidl/android/hardware/graphics/common/HardwareBuffer.h>
+#include <aidlcommonsupport/NativeHandle.h>
 #include <android-base/logging.h>
+#include <android-base/mapped_file.h>
 #include <android-base/unique_fd.h>
 #include <android/binder_auto_utils.h>
 #include <android/hardware_buffer.h>
@@ -125,28 +130,17 @@
 
 using UniqueNativeHandle = std::unique_ptr<native_handle_t, NativeHandleDeleter>;
 
-static GeneralResult<UniqueNativeHandle> nativeHandleFromAidlHandle(const NativeHandle& handle) {
-    std::vector<base::unique_fd> fds;
-    fds.reserve(handle.fds.size());
-    for (const auto& fd : handle.fds) {
-        auto duplicatedFd = NN_TRY(dupFd(fd.get()));
-        fds.emplace_back(duplicatedFd.release());
+GeneralResult<UniqueNativeHandle> nativeHandleFromAidlHandle(const NativeHandle& handle) {
+    auto nativeHandle = UniqueNativeHandle(dupFromAidl(handle));
+    if (nativeHandle.get() == nullptr) {
+        return NN_ERROR() << "android::dupFromAidl failed to convert the common::NativeHandle to a "
+                             "native_handle_t";
     }
-
-    constexpr size_t kIntMax = std::numeric_limits<int>::max();
-    CHECK_LE(handle.fds.size(), kIntMax);
-    CHECK_LE(handle.ints.size(), kIntMax);
-    native_handle_t* nativeHandle = native_handle_create(static_cast<int>(handle.fds.size()),
-                                                         static_cast<int>(handle.ints.size()));
-    if (nativeHandle == nullptr) {
-        return NN_ERROR() << "Failed to create native_handle";
+    if (!std::all_of(nativeHandle->data + 0, nativeHandle->data + nativeHandle->numFds,
+                     [](int fd) { return fd >= 0; })) {
+        return NN_ERROR() << "android::dupFromAidl returned an invalid native_handle_t";
     }
-    for (size_t i = 0; i < fds.size(); ++i) {
-        nativeHandle->data[i] = fds[i].release();
-    }
-    std::copy(handle.ints.begin(), handle.ints.end(), &nativeHandle->data[nativeHandle->numFds]);
-
-    return UniqueNativeHandle(nativeHandle);
+    return nativeHandle;
 }
 
 }  // anonymous namespace
@@ -353,75 +347,74 @@
     return measureTiming ? MeasureTiming::YES : MeasureTiming::NO;
 }
 
-static uint32_t roundUpToMultiple(uint32_t value, uint32_t multiple) {
-    return (value + multiple - 1) / multiple * multiple;
-}
-
 GeneralResult<SharedMemory> unvalidatedConvert(const aidl_hal::Memory& memory) {
-    VERIFY_NON_NEGATIVE(memory.size) << "Memory size must not be negative";
-    if (memory.size > std::numeric_limits<size_t>::max()) {
-        return NN_ERROR() << "Memory: size must be <= std::numeric_limits<size_t>::max()";
-    }
+    using Tag = aidl_hal::Memory::Tag;
+    switch (memory.getTag()) {
+        case Tag::ashmem: {
+            const auto& ashmem = memory.get<Tag::ashmem>();
+            VERIFY_NON_NEGATIVE(ashmem.size) << "Memory size must not be negative";
+            if (ashmem.size > std::numeric_limits<size_t>::max()) {
+                return NN_ERROR() << "Memory: size must be <= std::numeric_limits<size_t>::max()";
+            }
 
-    if (memory.name != "hardware_buffer_blob") {
-        return std::make_shared<const Memory>(Memory{
-                .handle = NN_TRY(unvalidatedConvertHelper(memory.handle)),
-                .size = static_cast<size_t>(memory.size),
-                .name = memory.name,
-        });
-    }
+            auto handle = Memory::Ashmem{
+                    .fd = NN_TRY(dupFd(ashmem.fd.get())),
+                    .size = static_cast<size_t>(ashmem.size),
+            };
+            return std::make_shared<const Memory>(Memory{.handle = std::move(handle)});
+        }
+        case Tag::mappableFile: {
+            const auto& mappableFile = memory.get<Tag::mappableFile>();
+            VERIFY_NON_NEGATIVE(mappableFile.length) << "Memory size must not be negative";
+            VERIFY_NON_NEGATIVE(mappableFile.offset) << "Memory offset must not be negative";
+            if (mappableFile.length > std::numeric_limits<size_t>::max()) {
+                return NN_ERROR() << "Memory: size must be <= std::numeric_limits<size_t>::max()";
+            }
+            if (mappableFile.offset > std::numeric_limits<size_t>::max()) {
+                return NN_ERROR() << "Memory: offset must be <= std::numeric_limits<size_t>::max()";
+            }
 
-    const auto size = static_cast<uint32_t>(memory.size);
-    const auto format = AHARDWAREBUFFER_FORMAT_BLOB;
-    const auto usage = AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN | AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN;
-    const uint32_t width = size;
-    const uint32_t height = 1;  // height is always 1 for BLOB mode AHardwareBuffer.
-    const uint32_t layers = 1;  // layers is always 1 for BLOB mode AHardwareBuffer.
+            const size_t size = static_cast<size_t>(mappableFile.length);
+            const int prot = mappableFile.prot;
+            const int fd = mappableFile.fd.get();
+            const size_t offset = static_cast<size_t>(mappableFile.offset);
 
-    const UniqueNativeHandle handle = NN_TRY(nativeHandleFromAidlHandle(memory.handle));
-    const native_handle_t* nativeHandle = handle.get();
+            return createSharedMemoryFromFd(size, prot, fd, offset);
+        }
+        case Tag::hardwareBuffer: {
+            const auto& hardwareBuffer = memory.get<Tag::hardwareBuffer>();
 
-    // AHardwareBuffer_createFromHandle() might fail because an allocator
-    // expects a specific stride value. In that case, we try to guess it by
-    // aligning the width to small powers of 2.
-    // TODO(b/174120849): Avoid stride assumptions.
-    AHardwareBuffer* hardwareBuffer = nullptr;
-    status_t status = UNKNOWN_ERROR;
-    for (uint32_t alignment : {1, 4, 32, 64, 128, 2, 8, 16}) {
-        const uint32_t stride = roundUpToMultiple(width, alignment);
-        AHardwareBuffer_Desc desc{
-                .width = width,
-                .height = height,
-                .layers = layers,
-                .format = format,
-                .usage = usage,
-                .stride = stride,
-        };
-        status = AHardwareBuffer_createFromHandle(&desc, nativeHandle,
-                                                  AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_CLONE,
-                                                  &hardwareBuffer);
-        if (status == NO_ERROR) {
-            break;
+            const UniqueNativeHandle handle =
+                    NN_TRY(nativeHandleFromAidlHandle(hardwareBuffer.handle));
+            const native_handle_t* nativeHandle = handle.get();
+
+            const AHardwareBuffer_Desc desc{
+                    .width = static_cast<uint32_t>(hardwareBuffer.description.width),
+                    .height = static_cast<uint32_t>(hardwareBuffer.description.height),
+                    .layers = static_cast<uint32_t>(hardwareBuffer.description.layers),
+                    .format = static_cast<uint32_t>(hardwareBuffer.description.format),
+                    .usage = static_cast<uint64_t>(hardwareBuffer.description.usage),
+                    .stride = static_cast<uint32_t>(hardwareBuffer.description.stride),
+            };
+            AHardwareBuffer* ahwb = nullptr;
+            const status_t status = AHardwareBuffer_createFromHandle(
+                    &desc, nativeHandle, AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_CLONE, &ahwb);
+            if (status != NO_ERROR) {
+                return NN_ERROR() << "createFromHandle failed";
+            }
+
+            return createSharedMemoryFromAHWB(ahwb, /*takeOwnership=*/true);
         }
     }
-    if (status != NO_ERROR) {
-        return NN_ERROR(ErrorStatus::GENERAL_FAILURE)
-               << "Can't create AHardwareBuffer from handle. Error: " << status;
-    }
-
-    return std::make_shared<const Memory>(Memory{
-            .handle = HardwareBufferHandle(hardwareBuffer, /*takeOwnership=*/true),
-            .size = static_cast<size_t>(memory.size),
-            .name = memory.name,
-    });
+    return NN_ERROR() << "Unrecognized Memory::Tag: " << memory.getTag();
 }
 
 GeneralResult<Timing> unvalidatedConvert(const aidl_hal::Timing& timing) {
-    if (timing.timeInDriver < -1) {
-        return NN_ERROR() << "Timing: timeInDriver must not be less than -1";
+    if (timing.timeInDriverNs < -1) {
+        return NN_ERROR() << "Timing: timeInDriverNs must not be less than -1";
     }
-    if (timing.timeOnDevice < -1) {
-        return NN_ERROR() << "Timing: timeOnDevice must not be less than -1";
+    if (timing.timeOnDeviceNs < -1) {
+        return NN_ERROR() << "Timing: timeOnDeviceNs must not be less than -1";
     }
     constexpr auto convertTiming = [](int64_t halTiming) -> OptionalDuration {
         if (halTiming == kNoTiming) {
@@ -429,8 +422,8 @@
         }
         return nn::Duration(static_cast<uint64_t>(halTiming));
     };
-    return Timing{.timeOnDevice = convertTiming(timing.timeOnDevice),
-                  .timeInDriver = convertTiming(timing.timeInDriver)};
+    return Timing{.timeOnDevice = convertTiming(timing.timeOnDeviceNs),
+                  .timeInDriver = convertTiming(timing.timeInDriverNs)};
 }
 
 GeneralResult<Model::OperandValues> unvalidatedConvert(const std::vector<uint8_t>& operandValues) {
@@ -645,20 +638,95 @@
 template <class... Ts>
 overloaded(Ts...)->overloaded<Ts...>;
 
-static nn::GeneralResult<common::NativeHandle> aidlHandleFromNativeHandle(
-        const native_handle_t& handle) {
-    common::NativeHandle aidlNativeHandle;
+nn::GeneralResult<common::NativeHandle> aidlHandleFromNativeHandle(
+        const native_handle_t& nativeHandle) {
+    auto handle = ::android::dupToAidl(&nativeHandle);
+    if (!std::all_of(handle.fds.begin(), handle.fds.end(),
+                     [](const ndk::ScopedFileDescriptor& fd) { return fd.get() >= 0; })) {
+        return NN_ERROR() << "android::dupToAidl returned an invalid common::NativeHandle";
+    }
+    return handle;
+}
 
-    aidlNativeHandle.fds.reserve(handle.numFds);
-    for (int i = 0; i < handle.numFds; ++i) {
-        auto duplicatedFd = NN_TRY(nn::dupFd(handle.data[i]));
-        aidlNativeHandle.fds.emplace_back(duplicatedFd.release());
+nn::GeneralResult<Memory> unvalidatedConvert(const nn::Memory::Ashmem& memory) {
+    if constexpr (std::numeric_limits<size_t>::max() > std::numeric_limits<int64_t>::max()) {
+        if (memory.size > std::numeric_limits<int64_t>::max()) {
+            return (
+                           NN_ERROR()
+                           << "Memory::Ashmem: size must be <= std::numeric_limits<int64_t>::max()")
+                    .
+                    operator nn::GeneralResult<Memory>();
+        }
     }
 
-    aidlNativeHandle.ints = std::vector<int>(&handle.data[handle.numFds],
-                                             &handle.data[handle.numFds + handle.numInts]);
+    auto fd = NN_TRY(nn::dupFd(memory.fd));
+    auto handle = common::Ashmem{
+            .fd = ndk::ScopedFileDescriptor(fd.release()),
+            .size = static_cast<int64_t>(memory.size),
+    };
+    return Memory::make<Memory::Tag::ashmem>(std::move(handle));
+}
 
-    return aidlNativeHandle;
+nn::GeneralResult<Memory> unvalidatedConvert(const nn::Memory::Fd& memory) {
+    if constexpr (std::numeric_limits<size_t>::max() > std::numeric_limits<int64_t>::max()) {
+        if (memory.size > std::numeric_limits<int64_t>::max()) {
+            return (NN_ERROR() << "Memory::Fd: size must be <= std::numeric_limits<int64_t>::max()")
+                    .
+                    operator nn::GeneralResult<Memory>();
+        }
+        if (memory.offset > std::numeric_limits<int64_t>::max()) {
+            return (
+                           NN_ERROR()
+                           << "Memory::Fd: offset must be <= std::numeric_limits<int64_t>::max()")
+                    .
+                    operator nn::GeneralResult<Memory>();
+        }
+    }
+
+    auto fd = NN_TRY(nn::dupFd(memory.fd));
+    auto handle = common::MappableFile{
+            .length = static_cast<int64_t>(memory.size),
+            .prot = memory.prot,
+            .fd = ndk::ScopedFileDescriptor(fd.release()),
+            .offset = static_cast<int64_t>(memory.offset),
+    };
+    return Memory::make<Memory::Tag::mappableFile>(std::move(handle));
+}
+
+nn::GeneralResult<Memory> unvalidatedConvert(const nn::Memory::HardwareBuffer& memory) {
+    const native_handle_t* nativeHandle = AHardwareBuffer_getNativeHandle(memory.handle.get());
+    if (nativeHandle == nullptr) {
+        return (NN_ERROR() << "unvalidatedConvert failed because AHardwareBuffer_getNativeHandle "
+                              "returned nullptr")
+                .
+                operator nn::GeneralResult<Memory>();
+    }
+
+    auto handle = NN_TRY(aidlHandleFromNativeHandle(*nativeHandle));
+
+    AHardwareBuffer_Desc desc;
+    AHardwareBuffer_describe(memory.handle.get(), &desc);
+
+    const auto description = graphics::common::HardwareBufferDescription{
+            .width = static_cast<int32_t>(desc.width),
+            .height = static_cast<int32_t>(desc.height),
+            .layers = static_cast<int32_t>(desc.layers),
+            .format = static_cast<graphics::common::PixelFormat>(desc.format),
+            .usage = static_cast<graphics::common::BufferUsage>(desc.usage),
+            .stride = static_cast<int32_t>(desc.stride),
+    };
+
+    auto hardwareBuffer = graphics::common::HardwareBuffer{
+            .description = std::move(description),
+            .handle = std::move(handle),
+    };
+    return Memory::make<Memory::Tag::hardwareBuffer>(std::move(hardwareBuffer));
+}
+
+nn::GeneralResult<Memory> unvalidatedConvert(const nn::Memory::Unknown& /*memory*/) {
+    return (NN_ERROR() << "Unable to convert Unknown memory type")
+            .
+            operator nn::GeneralResult<Memory>();
 }
 
 }  // namespace
@@ -693,41 +761,12 @@
 }
 
 nn::GeneralResult<Memory> unvalidatedConvert(const nn::SharedMemory& memory) {
-    CHECK(memory != nullptr);
-    if (memory->size > std::numeric_limits<int64_t>::max()) {
-        return NN_ERROR() << "Memory size doesn't fit into int64_t.";
+    if (memory == nullptr) {
+        return (NN_ERROR() << "Unable to convert nullptr memory")
+                .
+                operator nn::GeneralResult<Memory>();
     }
-    if (const auto* handle = std::get_if<nn::Handle>(&memory->handle)) {
-        return Memory{
-                .handle = NN_TRY(unvalidatedConvert(*handle)),
-                .size = static_cast<int64_t>(memory->size),
-                .name = memory->name,
-        };
-    }
-
-    const auto* ahwb = std::get<nn::HardwareBufferHandle>(memory->handle).get();
-    AHardwareBuffer_Desc bufferDesc;
-    AHardwareBuffer_describe(ahwb, &bufferDesc);
-
-    if (bufferDesc.format == AHARDWAREBUFFER_FORMAT_BLOB) {
-        CHECK_EQ(memory->size, bufferDesc.width);
-        CHECK_EQ(memory->name, "hardware_buffer_blob");
-    } else {
-        CHECK_EQ(memory->size, 0u);
-        CHECK_EQ(memory->name, "hardware_buffer");
-    }
-
-    const native_handle_t* nativeHandle = AHardwareBuffer_getNativeHandle(ahwb);
-    if (nativeHandle == nullptr) {
-        return NN_ERROR() << "unvalidatedConvert failed because AHardwareBuffer_getNativeHandle "
-                             "returned nullptr";
-    }
-
-    return Memory{
-            .handle = NN_TRY(aidlHandleFromNativeHandle(*nativeHandle)),
-            .size = static_cast<int64_t>(memory->size),
-            .name = memory->name,
-    };
+    return std::visit([](const auto& x) { return unvalidatedConvert(x); }, memory->handle);
 }
 
 nn::GeneralResult<ErrorStatus> unvalidatedConvert(const nn::ErrorStatus& errorStatus) {
@@ -925,8 +964,8 @@
 
 nn::GeneralResult<Timing> unvalidatedConvert(const nn::Timing& timing) {
     return Timing{
-            .timeOnDevice = NN_TRY(unvalidatedConvert(timing.timeOnDevice)),
-            .timeInDriver = NN_TRY(unvalidatedConvert(timing.timeInDriver)),
+            .timeOnDeviceNs = NN_TRY(unvalidatedConvert(timing.timeOnDevice)),
+            .timeInDriverNs = NN_TRY(unvalidatedConvert(timing.timeInDriver)),
     };
 }
 
diff --git a/neuralnetworks/aidl/utils/src/Device.cpp b/neuralnetworks/aidl/utils/src/Device.cpp
index 02ca861..0fd453b 100644
--- a/neuralnetworks/aidl/utils/src/Device.cpp
+++ b/neuralnetworks/aidl/utils/src/Device.cpp
@@ -178,10 +178,6 @@
     return kDeviceType;
 }
 
-bool Device::isUpdatable() const {
-    return false;
-}
-
 const std::vector<nn::Extension>& Device::getSupportedExtensions() const {
     return kExtensions;
 }
diff --git a/neuralnetworks/aidl/utils/src/InvalidDevice.cpp b/neuralnetworks/aidl/utils/src/InvalidDevice.cpp
new file mode 100644
index 0000000..c9d9955
--- /dev/null
+++ b/neuralnetworks/aidl/utils/src/InvalidDevice.cpp
@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InvalidDevice"
+
+#include "InvalidDevice.h"
+
+#include <aidl/android/hardware/neuralnetworks/BnBuffer.h>
+#include <aidl/android/hardware/neuralnetworks/BnDevice.h>
+#include <aidl/android/hardware/neuralnetworks/BnPreparedModel.h>
+#include <android/binder_auto_utils.h>
+
+#include "Conversions.h"
+#include "Utils.h"
+
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+namespace aidl::android::hardware::neuralnetworks {
+namespace {
+
+ndk::ScopedAStatus toAStatus(ErrorStatus errorStatus, const std::string& errorMessage) {
+    if (errorStatus == ErrorStatus::NONE) {
+        return ndk::ScopedAStatus::ok();
+    }
+    return ndk::ScopedAStatus::fromServiceSpecificErrorWithMessage(
+            static_cast<int32_t>(errorStatus), errorMessage.c_str());
+}
+
+}  // namespace
+
+std::shared_ptr<InvalidDevice> InvalidDevice::create() {
+    constexpr auto perf = PerformanceInfo{
+            .execTime = std::numeric_limits<float>::max(),
+            .powerUsage = std::numeric_limits<float>::max(),
+    };
+    auto capabilities = Capabilities{
+            .relaxedFloat32toFloat16PerformanceScalar = perf,
+            .relaxedFloat32toFloat16PerformanceTensor = perf,
+            .operandPerformance = {},
+            .ifPerformance = perf,
+            .whilePerformance = perf,
+    };
+    constexpr auto numberOfCacheFiles = NumberOfCacheFiles{
+            .numModelCache = 0,
+            .numDataCache = 0,
+    };
+    std::vector<Extension> extensions{};
+    constexpr auto deviceType = DeviceType::OTHER;
+    std::string versionString = "invalid";
+
+    return ndk::SharedRefBase::make<InvalidDevice>(std::move(capabilities), numberOfCacheFiles,
+                                                   std::move(extensions), deviceType,
+                                                   std::move(versionString));
+}
+
+InvalidDevice::InvalidDevice(Capabilities capabilities,
+                             const NumberOfCacheFiles& numberOfCacheFiles,
+                             std::vector<Extension> extensions, DeviceType deviceType,
+                             std::string versionString)
+    : kCapabilities(std::move(capabilities)),
+      kNumberOfCacheFiles(numberOfCacheFiles),
+      kExtensions(std::move(extensions)),
+      kDeviceType(deviceType),
+      kVersionString(std::move(versionString)) {}
+
+ndk::ScopedAStatus InvalidDevice::allocate(
+        const BufferDesc& /*desc*/, const std::vector<IPreparedModelParcel>& /*preparedModels*/,
+        const std::vector<BufferRole>& /*inputRoles*/,
+        const std::vector<BufferRole>& /*outputRoles*/, DeviceBuffer* /*deviceBuffer*/) {
+    return toAStatus(ErrorStatus::GENERAL_FAILURE, "InvalidDevice");
+}
+
+ndk::ScopedAStatus InvalidDevice::getCapabilities(Capabilities* capabilities) {
+    *capabilities = kCapabilities;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus InvalidDevice::getNumberOfCacheFilesNeeded(
+        NumberOfCacheFiles* numberOfCacheFiles) {
+    *numberOfCacheFiles = kNumberOfCacheFiles;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus InvalidDevice::getSupportedExtensions(std::vector<Extension>* extensions) {
+    *extensions = kExtensions;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus InvalidDevice::getSupportedOperations(const Model& model,
+                                                         std::vector<bool>* supportedOperations) {
+    if (const auto result = utils::validate(model); !result.ok()) {
+        return toAStatus(ErrorStatus::INVALID_ARGUMENT, result.error());
+    }
+    *supportedOperations = std::vector<bool>(model.main.operations.size(), false);
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus InvalidDevice::getType(DeviceType* deviceType) {
+    *deviceType = kDeviceType;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus InvalidDevice::getVersionString(std::string* versionString) {
+    *versionString = kVersionString;
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus InvalidDevice::prepareModel(
+        const Model& model, ExecutionPreference preference, Priority priority, int64_t deadline,
+        const std::vector<ndk::ScopedFileDescriptor>& modelCache,
+        const std::vector<ndk::ScopedFileDescriptor>& dataCache, const std::vector<uint8_t>& token,
+        const std::shared_ptr<IPreparedModelCallback>& callback) {
+    if (callback.get() == nullptr) {
+        return toAStatus(ErrorStatus::INVALID_ARGUMENT,
+                         "invalid callback passed to InvalidDevice::prepareModel");
+    }
+    if (const auto result = utils::validate(model); !result.ok()) {
+        callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
+        return toAStatus(ErrorStatus::INVALID_ARGUMENT, result.error());
+    }
+    if (const auto result = utils::validate(preference); !result.ok()) {
+        callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
+        return toAStatus(ErrorStatus::INVALID_ARGUMENT, result.error());
+    }
+    if (const auto result = utils::validate(priority); !result.ok()) {
+        callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
+        return toAStatus(ErrorStatus::INVALID_ARGUMENT, result.error());
+    }
+    if (deadline < -1) {
+        callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
+        return toAStatus(ErrorStatus::INVALID_ARGUMENT,
+                         "Invalid deadline " + std::to_string(deadline));
+    }
+    if (modelCache.size() != static_cast<size_t>(kNumberOfCacheFiles.numModelCache)) {
+        callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
+        return toAStatus(ErrorStatus::INVALID_ARGUMENT,
+                         "Invalid modelCache, size = " + std::to_string(modelCache.size()));
+    }
+    if (dataCache.size() != static_cast<size_t>(kNumberOfCacheFiles.numDataCache)) {
+        callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
+        return toAStatus(ErrorStatus::INVALID_ARGUMENT,
+                         "Invalid modelCache, size = " + std::to_string(dataCache.size()));
+    }
+    if (token.size() != IDevice::BYTE_SIZE_OF_CACHE_TOKEN) {
+        callback->notify(ErrorStatus::INVALID_ARGUMENT, nullptr);
+        return toAStatus(
+                ErrorStatus::INVALID_ARGUMENT,
+                "Invalid cache token, size = " + std::to_string(IDevice::BYTE_SIZE_OF_CACHE_TOKEN));
+    }
+    callback->notify(ErrorStatus::GENERAL_FAILURE, nullptr);
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus InvalidDevice::prepareModelFromCache(
+        int64_t /*deadline*/, const std::vector<ndk::ScopedFileDescriptor>& /*modelCache*/,
+        const std::vector<ndk::ScopedFileDescriptor>& /*dataCache*/,
+        const std::vector<uint8_t>& /*token*/,
+        const std::shared_ptr<IPreparedModelCallback>& callback) {
+    callback->notify(ErrorStatus::GENERAL_FAILURE, nullptr);
+    return toAStatus(ErrorStatus::GENERAL_FAILURE, "InvalidDevice");
+}
+
+}  // namespace aidl::android::hardware::neuralnetworks
diff --git a/neuralnetworks/aidl/utils/src/Service.cpp b/neuralnetworks/aidl/utils/src/Service.cpp
index 511de55..ac182a2 100644
--- a/neuralnetworks/aidl/utils/src/Service.cpp
+++ b/neuralnetworks/aidl/utils/src/Service.cpp
@@ -16,6 +16,7 @@
 
 #include "Service.h"
 
+#include <AndroidVersionUtil.h>
 #include <android/binder_auto_utils.h>
 #include <android/binder_manager.h>
 #include <android/binder_process.h>
@@ -35,13 +36,23 @@
     hal::utils::ResilientDevice::Factory makeDevice =
             [instanceName,
              name = std::move(fullName)](bool blocking) -> nn::GeneralResult<nn::SharedDevice> {
-        const auto& getService =
-                blocking ? AServiceManager_getService : AServiceManager_checkService;
+        std::add_pointer_t<AIBinder*(const char*)> getService;
+        if (blocking) {
+            if (__builtin_available(android __NNAPI_AIDL_MIN_ANDROID_API__, *)) {
+                getService = AServiceManager_waitForService;
+            } else {
+                getService = AServiceManager_getService;
+            }
+        } else {
+            getService = AServiceManager_checkService;
+        }
+
         auto service = IDevice::fromBinder(ndk::SpAIBinder(getService(name.c_str())));
         if (service == nullptr) {
-            return NN_ERROR() << (blocking ? "AServiceManager_getService"
-                                           : "AServiceManager_checkService")
-                              << " returned nullptr";
+            return NN_ERROR()
+                   << (blocking ? "AServiceManager_waitForService (or AServiceManager_getService)"
+                                : "AServiceManager_checkService")
+                   << " returned nullptr";
         }
         ABinderProcess_startThreadPool();
         return Device::create(instanceName, std::move(service));
diff --git a/neuralnetworks/aidl/utils/src/Utils.cpp b/neuralnetworks/aidl/utils/src/Utils.cpp
index 95516c8..03407be 100644
--- a/neuralnetworks/aidl/utils/src/Utils.cpp
+++ b/neuralnetworks/aidl/utils/src/Utils.cpp
@@ -16,12 +16,20 @@
 
 #include "Utils.h"
 
+#include <aidl/android/hardware/common/Ashmem.h>
+#include <aidl/android/hardware/common/MappableFile.h>
+#include <aidl/android/hardware/graphics/common/HardwareBuffer.h>
+#include <android/binder_auto_utils.h>
 #include <android/binder_status.h>
 #include <nnapi/Result.h>
+#include <nnapi/SharedMemory.h>
 
 namespace aidl::android::hardware::neuralnetworks::utils {
 namespace {
 
+nn::GeneralResult<ndk::ScopedFileDescriptor> clone(const ndk::ScopedFileDescriptor& fd);
+using utils::clone;
+
 template <typename Type>
 nn::GeneralResult<std::vector<Type>> cloneVec(const std::vector<Type>& arguments) {
     std::vector<Type> clonedObjects;
@@ -37,24 +45,52 @@
     return cloneVec(arguments);
 }
 
+nn::GeneralResult<ndk::ScopedFileDescriptor> clone(const ndk::ScopedFileDescriptor& fd) {
+    auto duplicatedFd = NN_TRY(nn::dupFd(fd.get()));
+    return ndk::ScopedFileDescriptor(duplicatedFd.release());
+}
+
+nn::GeneralResult<common::NativeHandle> clone(const common::NativeHandle& handle) {
+    return common::NativeHandle{
+            .fds = NN_TRY(cloneVec(handle.fds)),
+            .ints = handle.ints,
+    };
+}
+
 }  // namespace
 
 nn::GeneralResult<Memory> clone(const Memory& memory) {
-    common::NativeHandle nativeHandle;
-    nativeHandle.ints = memory.handle.ints;
-    nativeHandle.fds.reserve(memory.handle.fds.size());
-    for (const auto& fd : memory.handle.fds) {
-        const int newFd = dup(fd.get());
-        if (newFd < 0) {
-            return NN_ERROR() << "Couldn't dup a file descriptor";
+    switch (memory.getTag()) {
+        case Memory::Tag::ashmem: {
+            const auto& ashmem = memory.get<Memory::Tag::ashmem>();
+            auto handle = common::Ashmem{
+                    .fd = NN_TRY(clone(ashmem.fd)),
+                    .size = ashmem.size,
+            };
+            return Memory::make<Memory::Tag::ashmem>(std::move(handle));
         }
-        nativeHandle.fds.emplace_back(newFd);
+        case Memory::Tag::mappableFile: {
+            const auto& memFd = memory.get<Memory::Tag::mappableFile>();
+            auto handle = common::MappableFile{
+                    .length = memFd.length,
+                    .prot = memFd.prot,
+                    .fd = NN_TRY(clone(memFd.fd)),
+                    .offset = memFd.offset,
+            };
+            return Memory::make<Memory::Tag::mappableFile>(std::move(handle));
+        }
+        case Memory::Tag::hardwareBuffer: {
+            const auto& hardwareBuffer = memory.get<Memory::Tag::hardwareBuffer>();
+            auto handle = graphics::common::HardwareBuffer{
+                    .description = hardwareBuffer.description,
+                    .handle = NN_TRY(clone(hardwareBuffer.handle)),
+            };
+            return Memory::make<Memory::Tag::hardwareBuffer>(std::move(handle));
+        }
     }
-    return Memory{
-            .handle = std::move(nativeHandle),
-            .size = memory.size,
-            .name = memory.name,
-    };
+    return (NN_ERROR() << "Unrecognized Memory::Tag: " << memory.getTag())
+            .
+            operator nn::GeneralResult<Memory>();
 }
 
 nn::GeneralResult<RequestMemoryPool> clone(const RequestMemoryPool& requestPool) {
diff --git a/neuralnetworks/aidl/utils/test/PreparedModelTest.cpp b/neuralnetworks/aidl/utils/test/PreparedModelTest.cpp
index 630a460..ff98a7d 100644
--- a/neuralnetworks/aidl/utils/test/PreparedModelTest.cpp
+++ b/neuralnetworks/aidl/utils/test/PreparedModelTest.cpp
@@ -39,7 +39,7 @@
 using ::testing::SetArgPointee;
 
 const std::shared_ptr<IPreparedModel> kInvalidPreparedModel;
-constexpr auto kNoTiming = Timing{.timeOnDevice = -1, .timeInDriver = -1};
+constexpr auto kNoTiming = Timing{.timeOnDeviceNs = -1, .timeInDriverNs = -1};
 
 constexpr auto makeStatusOk = [] { return ndk::ScopedAStatus::ok(); };
 
diff --git a/neuralnetworks/aidl/vts/functional/Android.bp b/neuralnetworks/aidl/vts/functional/Android.bp
index 7804c2a..d5b150a 100644
--- a/neuralnetworks/aidl/vts/functional/Android.bp
+++ b/neuralnetworks/aidl/vts/functional/Android.bp
@@ -50,9 +50,11 @@
     ],
     static_libs: [
         "android.hardware.common-V2-ndk_platform",
+        "android.hardware.graphics.common-V2-ndk_platform",
         "android.hardware.neuralnetworks-V1-ndk_platform",
         "android.hidl.allocator@1.0",
         "android.hidl.memory@1.0",
+        "libaidlcommonsupport",
         "libgmock",
         "libhidlmemory",
         "libneuralnetworks_generated_test_harness",
diff --git a/neuralnetworks/aidl/vts/functional/GeneratedTestHarness.cpp b/neuralnetworks/aidl/vts/functional/GeneratedTestHarness.cpp
index 1440429..d3b041d 100644
--- a/neuralnetworks/aidl/vts/functional/GeneratedTestHarness.cpp
+++ b/neuralnetworks/aidl/vts/functional/GeneratedTestHarness.cpp
@@ -547,7 +547,7 @@
         makeOutputInsufficientSize(kInsufficientOutputIndex, &request);
     }
 
-    int64_t loopTimeoutDuration = kOmittedTimeoutDuration;
+    int64_t loopTimeoutDurationNs = kOmittedTimeoutDuration;
     // OutputType::MISSED_DEADLINE is only used by
     // TestKind::INTINITE_LOOP_TIMEOUT tests to verify that an infinite loop is
     // aborted after a timeout.
@@ -555,7 +555,7 @@
         // Override the default loop timeout duration with a small value to
         // speed up test execution.
         constexpr int64_t kMillisecond = 1'000'000;
-        loopTimeoutDuration = 1 * kMillisecond;
+        loopTimeoutDurationNs = 1 * kMillisecond;
     }
 
     ErrorStatus executionStatus;
@@ -568,7 +568,7 @@
             ExecutionResult executionResult;
             // execute
             const auto ret = preparedModel->executeSynchronously(request, testConfig.measureTiming,
-                                                                 kNoDeadline, loopTimeoutDuration,
+                                                                 kNoDeadline, loopTimeoutDurationNs,
                                                                  &executionResult);
             ASSERT_TRUE(ret.isOk() || ret.getExceptionCode() == EX_SERVICE_SPECIFIC)
                     << ret.getDescription();
@@ -608,7 +608,7 @@
             ExecutionResult executionResult;
             // execute
             ret = burst->executeSynchronously(request, slots, testConfig.measureTiming, kNoDeadline,
-                                              loopTimeoutDuration, &executionResult);
+                                              loopTimeoutDurationNs, &executionResult);
             ASSERT_TRUE(ret.isOk() || ret.getExceptionCode() == EX_SERVICE_SPECIFIC)
                     << ret.getDescription();
             if (ret.isOk()) {
@@ -635,7 +635,7 @@
             ErrorStatus result = ErrorStatus::NONE;
             FencedExecutionResult executionResult;
             auto ret = preparedModel->executeFenced(request, {}, testConfig.measureTiming,
-                                                    kNoDeadline, loopTimeoutDuration, kNoDuration,
+                                                    kNoDeadline, loopTimeoutDurationNs, kNoDuration,
                                                     &executionResult);
             ASSERT_TRUE(ret.isOk() || ret.getExceptionCode() == EX_SERVICE_SPECIFIC)
                     << ret.getDescription();
@@ -649,7 +649,7 @@
                 waitFor.emplace_back(dupFd);
                 // If a sync fence is returned, try start another run waiting for the sync fence.
                 ret = preparedModel->executeFenced(request, waitFor, testConfig.measureTiming,
-                                                   kNoDeadline, loopTimeoutDuration, kNoDuration,
+                                                   kNoDeadline, loopTimeoutDurationNs, kNoDuration,
                                                    &executionResult);
                 ASSERT_TRUE(ret.isOk());
                 waitForSyncFence(executionResult.syncFence.get());
@@ -686,8 +686,8 @@
     if (!testConfig.measureTiming) {
         EXPECT_EQ(timing, kNoTiming);
     } else {
-        if (timing.timeOnDevice != -1 && timing.timeInDriver != -1) {
-            EXPECT_LE(timing.timeOnDevice, timing.timeInDriver);
+        if (timing.timeOnDeviceNs != -1 && timing.timeInDriverNs != -1) {
+            EXPECT_LE(timing.timeOnDeviceNs, timing.timeInDriverNs);
         }
     }
 
diff --git a/neuralnetworks/aidl/vts/functional/MemoryDomainTests.cpp b/neuralnetworks/aidl/vts/functional/MemoryDomainTests.cpp
index 596f8ae..e8313f1 100644
--- a/neuralnetworks/aidl/vts/functional/MemoryDomainTests.cpp
+++ b/neuralnetworks/aidl/vts/functional/MemoryDomainTests.cpp
@@ -16,6 +16,7 @@
 
 #define LOG_TAG "neuralnetworks_aidl_hal_test"
 
+#include <aidl/android/hardware/graphics/common/PixelFormat.h>
 #include <android-base/logging.h>
 #include <android/binder_auto_utils.h>
 #include <android/binder_interface_utils.h>
@@ -659,10 +660,26 @@
         return allocateBuffer(preparedModel, inputIndexes, outputIndexes, {});
     }
 
+    size_t getSize(const Memory& memory) {
+        switch (memory.getTag()) {
+            case Memory::Tag::ashmem:
+                return memory.get<Memory::Tag::ashmem>().size;
+            case Memory::Tag::mappableFile:
+                return memory.get<Memory::Tag::mappableFile>().length;
+            case Memory::Tag::hardwareBuffer: {
+                const auto& hardwareBuffer = memory.get<Memory::Tag::hardwareBuffer>();
+                const bool isBlob =
+                        hardwareBuffer.description.format == graphics::common::PixelFormat::BLOB;
+                return isBlob ? hardwareBuffer.description.width : 0;
+            }
+        }
+        return 0;
+    }
+
     Memory allocateSharedMemory(uint32_t size) {
         const auto sharedMemory = nn::createSharedMemory(size).value();
         auto memory = utils::convert(sharedMemory).value();
-        EXPECT_EQ(memory.size, size);
+        EXPECT_EQ(getSize(memory), size);
         return memory;
     }
 
@@ -690,7 +707,7 @@
 
     void initializeDeviceMemory(const std::shared_ptr<IBuffer>& buffer) {
         Memory memory = allocateSharedMemory(kTestOperandDataSize);
-        ASSERT_EQ(memory.size, kTestOperandDataSize);
+        ASSERT_EQ(getSize(memory), kTestOperandDataSize);
         testCopyFrom(buffer, memory, utils::toSigned(kTestOperand.dimensions).value(),
                      ErrorStatus::NONE);
     }
diff --git a/neuralnetworks/aidl/vts/functional/QualityOfServiceTests.cpp b/neuralnetworks/aidl/vts/functional/QualityOfServiceTests.cpp
index e803e38..bbba887 100644
--- a/neuralnetworks/aidl/vts/functional/QualityOfServiceTests.cpp
+++ b/neuralnetworks/aidl/vts/functional/QualityOfServiceTests.cpp
@@ -53,7 +53,7 @@
 
 using ExecutionFunction =
         std::function<MaybeResults(const std::shared_ptr<IPreparedModel>& preparedModel,
-                                   const Request& request, int64_t deadline)>;
+                                   const Request& request, int64_t deadlineNs)>;
 
 static int64_t makeDeadline(DeadlineBoundType deadlineBoundType) {
     const auto getNanosecondsSinceEpoch = [](const auto& time) -> int64_t {
@@ -79,9 +79,9 @@
 
 void runPrepareModelTest(const std::shared_ptr<IDevice>& device, const Model& model,
                          Priority priority, std::optional<DeadlineBoundType> deadlineBound) {
-    int64_t deadline = kNoDeadline;
+    int64_t deadlineNs = kNoDeadline;
     if (deadlineBound.has_value()) {
-        deadline = makeDeadline(deadlineBound.value());
+        deadlineNs = makeDeadline(deadlineBound.value());
     }
 
     // see if service can handle model
@@ -96,8 +96,8 @@
     const std::shared_ptr<PreparedModelCallback> preparedModelCallback =
             ndk::SharedRefBase::make<PreparedModelCallback>();
     const auto prepareLaunchStatus =
-            device->prepareModel(model, ExecutionPreference::FAST_SINGLE_ANSWER, priority, deadline,
-                                 {}, {}, kEmptyCacheToken, preparedModelCallback);
+            device->prepareModel(model, ExecutionPreference::FAST_SINGLE_ANSWER, priority,
+                                 deadlineNs, {}, {}, kEmptyCacheToken, preparedModelCallback);
     ASSERT_TRUE(prepareLaunchStatus.isOk())
             << "prepareLaunchStatus: " << prepareLaunchStatus.getDescription();
 
@@ -156,13 +156,13 @@
 }
 
 static MaybeResults executeSynchronously(const std::shared_ptr<IPreparedModel>& preparedModel,
-                                         const Request& request, int64_t deadline) {
+                                         const Request& request, int64_t deadlineNs) {
     SCOPED_TRACE("synchronous");
     const bool measure = false;
 
     // run execution
     ExecutionResult executionResult;
-    const auto ret = preparedModel->executeSynchronously(request, measure, deadline,
+    const auto ret = preparedModel->executeSynchronously(request, measure, deadlineNs,
                                                          kOmittedTimeoutDuration, &executionResult);
     EXPECT_TRUE(ret.isOk() || ret.getExceptionCode() == EX_SERVICE_SPECIFIC)
             << ret.getDescription();
@@ -182,7 +182,7 @@
 }
 
 static MaybeResults executeBurst(const std::shared_ptr<IPreparedModel>& preparedModel,
-                                 const Request& request, int64_t deadline) {
+                                 const Request& request, int64_t deadlineNs) {
     SCOPED_TRACE("burst");
     const bool measure = false;
 
@@ -200,7 +200,7 @@
 
     // run execution
     ExecutionResult executionResult;
-    ret = burst->executeSynchronously(request, slots, measure, deadline, kOmittedTimeoutDuration,
+    ret = burst->executeSynchronously(request, slots, measure, deadlineNs, kOmittedTimeoutDuration,
                                       &executionResult);
     EXPECT_TRUE(ret.isOk() || ret.getExceptionCode() == EX_SERVICE_SPECIFIC)
             << ret.getDescription();
@@ -224,10 +224,10 @@
                       const ExecutionContext& context, bool synchronous,
                       DeadlineBoundType deadlineBound) {
     const ExecutionFunction execute = synchronous ? executeSynchronously : executeBurst;
-    const auto deadline = makeDeadline(deadlineBound);
+    const auto deadlineNs = makeDeadline(deadlineBound);
 
     // Perform execution and unpack results.
-    const auto results = execute(preparedModel, request, deadline);
+    const auto results = execute(preparedModel, request, deadlineNs);
     if (!results.has_value()) return;
     const auto& [status, outputShapes, timing] = results.value();
 
diff --git a/neuralnetworks/aidl/vts/functional/Utils.h b/neuralnetworks/aidl/vts/functional/Utils.h
index 266301c..77085a7 100644
--- a/neuralnetworks/aidl/vts/functional/Utils.h
+++ b/neuralnetworks/aidl/vts/functional/Utils.h
@@ -43,7 +43,7 @@
 
 inline constexpr Priority kDefaultPriority = Priority::MEDIUM;
 
-inline constexpr Timing kNoTiming = {.timeOnDevice = -1, .timeInDriver = -1};
+inline constexpr Timing kNoTiming = {.timeOnDeviceNs = -1, .timeInDriverNs = -1};
 inline constexpr int64_t kNoDeadline = -1;
 inline constexpr int64_t kOmittedTimeoutDuration = -1;
 inline constexpr int64_t kNoDuration = -1;
diff --git a/neuralnetworks/aidl/vts/functional/ValidateModel.cpp b/neuralnetworks/aidl/vts/functional/ValidateModel.cpp
index 94d3daf..698c054 100644
--- a/neuralnetworks/aidl/vts/functional/ValidateModel.cpp
+++ b/neuralnetworks/aidl/vts/functional/ValidateModel.cpp
@@ -259,12 +259,16 @@
 size_t sizeForBinder(const Memory& memory) {
     // This is just a guess.
 
-    size_t size = 0;
-    const NativeHandle& handle = memory.handle;
-    size += sizeof(decltype(handle.fds)::value_type) * handle.fds.size();
-    size += sizeof(decltype(handle.ints)::value_type) * handle.ints.size();
-    size += sizeForBinder(memory.name);
-    size += sizeof(memory);
+    size_t size = sizeof(Memory);
+
+    // Only hardwareBuffer type memory has dynamic memory that needs to be accounted for (in the
+    // form of a NativeHandle type). The other other types of memory (MappableFile, Ashmem) use a
+    // single file descriptor (with metadata) instead.
+    if (memory.getTag() == Memory::Tag::hardwareBuffer) {
+        const NativeHandle& handle = memory.get<Memory::Tag::hardwareBuffer>().handle;
+        size += sizeof(decltype(handle.fds)::value_type) * handle.fds.size();
+        size += sizeof(decltype(handle.ints)::value_type) * handle.ints.size();
+    }
 
     return size;
 }
diff --git a/neuralnetworks/aidl/vts/functional/VtsHalNeuralnetworks.cpp b/neuralnetworks/aidl/vts/functional/VtsHalNeuralnetworks.cpp
index 0c3a196..ee7cf89 100644
--- a/neuralnetworks/aidl/vts/functional/VtsHalNeuralnetworks.cpp
+++ b/neuralnetworks/aidl/vts/functional/VtsHalNeuralnetworks.cpp
@@ -94,7 +94,7 @@
 }
 
 static NamedDevice makeNamedDevice(const std::string& name) {
-    ndk::SpAIBinder binder(AServiceManager_getService(name.c_str()));
+    ndk::SpAIBinder binder(AServiceManager_waitForService(name.c_str()));
     return {name, IDevice::fromBinder(binder)};
 }
 
diff --git a/neuralnetworks/utils/common/include/nnapi/hal/InvalidDevice.h b/neuralnetworks/utils/common/include/nnapi/hal/InvalidDevice.h
index d843526..5e62b9a 100644
--- a/neuralnetworks/utils/common/include/nnapi/hal/InvalidDevice.h
+++ b/neuralnetworks/utils/common/include/nnapi/hal/InvalidDevice.h
@@ -32,7 +32,7 @@
 class InvalidDevice final : public nn::IDevice {
   public:
     InvalidDevice(std::string name, std::string versionString, nn::Version featureLevel,
-                  nn::DeviceType type, bool isUpdatable, std::vector<nn::Extension> extensions,
+                  nn::DeviceType type, std::vector<nn::Extension> extensions,
                   nn::Capabilities capabilities,
                   std::pair<uint32_t, uint32_t> numberOfCacheFilesNeeded);
 
@@ -40,7 +40,6 @@
     const std::string& getVersionString() const override;
     nn::Version getFeatureLevel() const override;
     nn::DeviceType getType() const override;
-    bool isUpdatable() const override;
     const std::vector<nn::Extension>& getSupportedExtensions() const override;
     const nn::Capabilities& getCapabilities() const override;
     std::pair<uint32_t, uint32_t> getNumberOfCacheFilesNeeded() const override;
@@ -71,7 +70,6 @@
     const std::string kVersionString;
     const nn::Version kFeatureLevel;
     const nn::DeviceType kType;
-    const bool kIsUpdatable;
     const std::vector<nn::Extension> kExtensions;
     const nn::Capabilities kCapabilities;
     const std::pair<uint32_t, uint32_t> kNumberOfCacheFilesNeeded;
diff --git a/neuralnetworks/utils/common/include/nnapi/hal/ResilientDevice.h b/neuralnetworks/utils/common/include/nnapi/hal/ResilientDevice.h
index 8199c52..84ae799 100644
--- a/neuralnetworks/utils/common/include/nnapi/hal/ResilientDevice.h
+++ b/neuralnetworks/utils/common/include/nnapi/hal/ResilientDevice.h
@@ -53,7 +53,6 @@
     const std::string& getVersionString() const override;
     nn::Version getFeatureLevel() const override;
     nn::DeviceType getType() const override;
-    bool isUpdatable() const override;
     const std::vector<nn::Extension>& getSupportedExtensions() const override;
     const nn::Capabilities& getCapabilities() const override;
     std::pair<uint32_t, uint32_t> getNumberOfCacheFilesNeeded() const override;
diff --git a/neuralnetworks/utils/common/src/CommonUtils.cpp b/neuralnetworks/utils/common/src/CommonUtils.cpp
index 924ecb2..4d26795 100644
--- a/neuralnetworks/utils/common/src/CommonUtils.cpp
+++ b/neuralnetworks/utils/common/src/CommonUtils.cpp
@@ -89,6 +89,59 @@
                   });
 }
 
+nn::GeneralResult<hidl_handle> createNativeHandleFrom(base::unique_fd fd,
+                                                      const std::vector<int32_t>& ints) {
+    constexpr size_t kIntMax = std::numeric_limits<int>::max();
+    CHECK_LE(ints.size(), kIntMax);
+    native_handle_t* nativeHandle = native_handle_create(1, static_cast<int>(ints.size()));
+    if (nativeHandle == nullptr) {
+        return NN_ERROR() << "Failed to create native_handle";
+    }
+
+    nativeHandle->data[0] = fd.release();
+    std::copy(ints.begin(), ints.end(), nativeHandle->data + 1);
+
+    hidl_handle handle;
+    handle.setTo(nativeHandle, /*shouldOwn=*/true);
+    return handle;
+}
+
+nn::GeneralResult<hidl_memory> createHidlMemoryFrom(const nn::Memory::Ashmem& memory) {
+    auto fd = NN_TRY(nn::dupFd(memory.fd));
+    auto handle = NN_TRY(createNativeHandleFrom(std::move(fd), {}));
+    return hidl_memory("ashmem", std::move(handle), memory.size);
+}
+
+nn::GeneralResult<hidl_memory> createHidlMemoryFrom(const nn::Memory::Fd& memory) {
+    auto fd = NN_TRY(nn::dupFd(memory.fd));
+
+    const auto [lowOffsetBits, highOffsetBits] = nn::getIntsFromOffset(memory.offset);
+    const std::vector<int> ints = {memory.prot, lowOffsetBits, highOffsetBits};
+
+    auto handle = NN_TRY(createNativeHandleFrom(std::move(fd), ints));
+    return hidl_memory("mmap_fd", std::move(handle), memory.size);
+}
+
+nn::GeneralResult<hidl_memory> createHidlMemoryFrom(const nn::Memory::HardwareBuffer& memory) {
+    const auto* ahwb = memory.handle.get();
+    AHardwareBuffer_Desc bufferDesc;
+    AHardwareBuffer_describe(ahwb, &bufferDesc);
+
+    const bool isBlob = bufferDesc.format == AHARDWAREBUFFER_FORMAT_BLOB;
+    const size_t size = isBlob ? bufferDesc.width : 0;
+    const char* const name = isBlob ? "hardware_buffer_blob" : "hardware_buffer";
+
+    const native_handle_t* nativeHandle = AHardwareBuffer_getNativeHandle(ahwb);
+    const hidl_handle hidlHandle(nativeHandle);
+    hidl_handle copiedHandle(hidlHandle);
+
+    return hidl_memory(name, std::move(copiedHandle), size);
+}
+
+nn::GeneralResult<hidl_memory> createHidlMemoryFrom(const nn::Memory::Unknown& memory) {
+    return hidl_memory(memory.name, NN_TRY(hidlHandleFromSharedHandle(memory.handle)), memory.size);
+}
+
 }  // anonymous namespace
 
 nn::Capabilities::OperandPerformanceTable makeQuantized8PerformanceConsistentWithP(
@@ -255,27 +308,7 @@
     if (memory == nullptr) {
         return NN_ERROR() << "Memory must be non-empty";
     }
-    if (const auto* handle = std::get_if<nn::Handle>(&memory->handle)) {
-        return hidl_memory(memory->name, NN_TRY(hidlHandleFromSharedHandle(*handle)), memory->size);
-    }
-
-    const auto* ahwb = std::get<nn::HardwareBufferHandle>(memory->handle).get();
-    AHardwareBuffer_Desc bufferDesc;
-    AHardwareBuffer_describe(ahwb, &bufferDesc);
-
-    if (bufferDesc.format == AHARDWAREBUFFER_FORMAT_BLOB) {
-        CHECK_EQ(memory->size, bufferDesc.width);
-        CHECK_EQ(memory->name, "hardware_buffer_blob");
-    } else {
-        CHECK_EQ(memory->size, 0u);
-        CHECK_EQ(memory->name, "hardware_buffer");
-    }
-
-    const native_handle_t* nativeHandle = AHardwareBuffer_getNativeHandle(ahwb);
-    const hidl_handle hidlHandle(nativeHandle);
-    hidl_handle handle(hidlHandle);
-
-    return hidl_memory(memory->name, std::move(handle), memory->size);
+    return std::visit([](const auto& x) { return createHidlMemoryFrom(x); }, memory->handle);
 }
 
 static uint32_t roundUpToMultiple(uint32_t value, uint32_t multiple) {
@@ -283,14 +316,53 @@
 }
 
 nn::GeneralResult<nn::SharedMemory> createSharedMemoryFromHidlMemory(const hidl_memory& memory) {
-    CHECK_LE(memory.size(), std::numeric_limits<uint32_t>::max());
+    CHECK_LE(memory.size(), std::numeric_limits<size_t>::max());
+    if (!memory.valid()) {
+        return NN_ERROR() << "Unable to convert invalid hidl_memory";
+    }
+
+    if (memory.name() == "ashmem") {
+        if (memory.handle()->numFds != 1) {
+            return NN_ERROR() << "Unable to convert invalid ashmem memory object with "
+                              << memory.handle()->numFds << " numFds, but expected 1";
+        }
+        if (memory.handle()->numInts != 0) {
+            return NN_ERROR() << "Unable to convert invalid ashmem memory object with "
+                              << memory.handle()->numInts << " numInts, but expected 0";
+        }
+        auto handle = nn::Memory::Ashmem{
+                .fd = NN_TRY(nn::dupFd(memory.handle()->data[0])),
+                .size = static_cast<size_t>(memory.size()),
+        };
+        return std::make_shared<const nn::Memory>(nn::Memory{.handle = std::move(handle)});
+    }
+
+    if (memory.name() == "mmap_fd") {
+        if (memory.handle()->numFds != 1) {
+            return NN_ERROR() << "Unable to convert invalid mmap_fd memory object with "
+                              << memory.handle()->numFds << " numFds, but expected 1";
+        }
+        if (memory.handle()->numInts != 3) {
+            return NN_ERROR() << "Unable to convert invalid mmap_fd memory object with "
+                              << memory.handle()->numInts << " numInts, but expected 3";
+        }
+
+        const int fd = memory.handle()->data[0];
+        const int prot = memory.handle()->data[1];
+        const int lower = memory.handle()->data[2];
+        const int higher = memory.handle()->data[3];
+        const size_t offset = nn::getOffsetFromInts(lower, higher);
+
+        return nn::createSharedMemoryFromFd(static_cast<size_t>(memory.size()), prot, fd, offset);
+    }
 
     if (memory.name() != "hardware_buffer_blob") {
-        return std::make_shared<const nn::Memory>(nn::Memory{
+        auto handle = nn::Memory::Unknown{
                 .handle = NN_TRY(sharedHandleFromNativeHandle(memory.handle())),
-                .size = static_cast<uint32_t>(memory.size()),
+                .size = static_cast<size_t>(memory.size()),
                 .name = memory.name(),
-        });
+        };
+        return std::make_shared<const nn::Memory>(nn::Memory{.handle = std::move(handle)});
     }
 
     const auto size = memory.size();
@@ -328,11 +400,7 @@
                << "Can't create AHardwareBuffer from handle. Error: " << status;
     }
 
-    return std::make_shared<const nn::Memory>(nn::Memory{
-            .handle = nn::HardwareBufferHandle(hardwareBuffer, /*takeOwnership=*/true),
-            .size = static_cast<uint32_t>(memory.size()),
-            .name = memory.name(),
-    });
+    return nn::createSharedMemoryFromAHWB(hardwareBuffer, /*takeOwnership=*/true);
 }
 
 nn::GeneralResult<hidl_handle> hidlHandleFromSharedHandle(const nn::Handle& handle) {
diff --git a/neuralnetworks/utils/common/src/InvalidDevice.cpp b/neuralnetworks/utils/common/src/InvalidDevice.cpp
index 81bca7f..535ccb4 100644
--- a/neuralnetworks/utils/common/src/InvalidDevice.cpp
+++ b/neuralnetworks/utils/common/src/InvalidDevice.cpp
@@ -32,14 +32,13 @@
 namespace android::hardware::neuralnetworks::utils {
 
 InvalidDevice::InvalidDevice(std::string name, std::string versionString, nn::Version featureLevel,
-                             nn::DeviceType type, bool isUpdatable,
-                             std::vector<nn::Extension> extensions, nn::Capabilities capabilities,
+                             nn::DeviceType type, std::vector<nn::Extension> extensions,
+                             nn::Capabilities capabilities,
                              std::pair<uint32_t, uint32_t> numberOfCacheFilesNeeded)
     : kName(std::move(name)),
       kVersionString(std::move(versionString)),
       kFeatureLevel(featureLevel),
       kType(type),
-      kIsUpdatable(isUpdatable),
       kExtensions(std::move(extensions)),
       kCapabilities(std::move(capabilities)),
       kNumberOfCacheFilesNeeded(numberOfCacheFilesNeeded) {}
@@ -60,10 +59,6 @@
     return kType;
 }
 
-bool InvalidDevice::isUpdatable() const {
-    return kIsUpdatable;
-}
-
 const std::vector<nn::Extension>& InvalidDevice::getSupportedExtensions() const {
     return kExtensions;
 }
diff --git a/neuralnetworks/utils/common/src/ResilientDevice.cpp b/neuralnetworks/utils/common/src/ResilientDevice.cpp
index 13965af..2023c9a 100644
--- a/neuralnetworks/utils/common/src/ResilientDevice.cpp
+++ b/neuralnetworks/utils/common/src/ResilientDevice.cpp
@@ -122,14 +122,12 @@
     };
     if (compare(&IDevice::getName) || compare(&IDevice::getVersionString) ||
         compare(&IDevice::getFeatureLevel) || compare(&IDevice::getType) ||
-        compare(&IDevice::isUpdatable) || compare(&IDevice::getSupportedExtensions) ||
-        compare(&IDevice::getCapabilities)) {
+        compare(&IDevice::getSupportedExtensions) || compare(&IDevice::getCapabilities)) {
         LOG(ERROR) << "Recovered device has different metadata than what is cached. Marking "
                       "IDevice object as invalid.";
         device = std::make_shared<const InvalidDevice>(
-                kName, kVersionString, mDevice->getFeatureLevel(), mDevice->getType(),
-                mDevice->isUpdatable(), kExtensions, kCapabilities,
-                mDevice->getNumberOfCacheFilesNeeded());
+                kName, kVersionString, mDevice->getFeatureLevel(), mDevice->getType(), kExtensions,
+                kCapabilities, mDevice->getNumberOfCacheFilesNeeded());
         mIsValid = false;
     }
 
@@ -153,10 +151,6 @@
     return getDevice()->getType();
 }
 
-bool ResilientDevice::isUpdatable() const {
-    return getDevice()->isUpdatable();
-}
-
 const std::vector<nn::Extension>& ResilientDevice::getSupportedExtensions() const {
     return kExtensions;
 }
diff --git a/neuralnetworks/utils/common/test/MockDevice.h b/neuralnetworks/utils/common/test/MockDevice.h
index b274716..a9428bc 100644
--- a/neuralnetworks/utils/common/test/MockDevice.h
+++ b/neuralnetworks/utils/common/test/MockDevice.h
@@ -29,7 +29,6 @@
     MOCK_METHOD(const std::string&, getVersionString, (), (const, override));
     MOCK_METHOD(Version, getFeatureLevel, (), (const, override));
     MOCK_METHOD(DeviceType, getType, (), (const, override));
-    MOCK_METHOD(bool, isUpdatable, (), (const, override));
     MOCK_METHOD(const std::vector<Extension>&, getSupportedExtensions, (), (const, override));
     MOCK_METHOD(const Capabilities&, getCapabilities, (), (const, override));
     MOCK_METHOD((std::pair<uint32_t, uint32_t>), getNumberOfCacheFilesNeeded, (),
diff --git a/neuralnetworks/utils/service/include/nnapi/hal/Service.h b/neuralnetworks/utils/service/include/nnapi/hal/Service.h
index e339627..2fd5237 100644
--- a/neuralnetworks/utils/service/include/nnapi/hal/Service.h
+++ b/neuralnetworks/utils/service/include/nnapi/hal/Service.h
@@ -22,10 +22,15 @@
 #include <memory>
 #include <vector>
 
-namespace android::nn::hal {
+namespace android::hardware::neuralnetworks::service {
 
-std::vector<nn::SharedDevice> getDevices();
+struct SharedDeviceAndUpdatability {
+    nn::SharedDevice device;
+    bool isDeviceUpdatable = false;
+};
 
-}  // namespace android::nn::hal
+std::vector<SharedDeviceAndUpdatability> getDevices(bool includeUpdatableDrivers);
+
+}  // namespace android::hardware::neuralnetworks::service
 
 #endif  // ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_UTILS_SERVICE_H
diff --git a/neuralnetworks/utils/service/src/Service.cpp b/neuralnetworks/utils/service/src/Service.cpp
index c83bcc9..2286288 100644
--- a/neuralnetworks/utils/service/src/Service.cpp
+++ b/neuralnetworks/utils/service/src/Service.cpp
@@ -16,6 +16,7 @@
 
 #include "Service.h"
 
+#include <AndroidVersionUtil.h>
 #include <aidl/android/hardware/neuralnetworks/IDevice.h>
 #include <android-base/logging.h>
 #include <android/binder_manager.h>
@@ -34,6 +35,7 @@
 #include <nnapi/hal/1.2/Service.h>
 #include <nnapi/hal/1.3/Service.h>
 #include <nnapi/hal/aidl/Service.h>
+#include <nnapi/hal/aidl/Utils.h>
 
 #include <functional>
 #include <memory>
@@ -49,7 +51,7 @@
 using getDeviceFn = std::add_pointer_t<nn::GeneralResult<nn::SharedDevice>(const std::string&)>;
 
 void getHidlDevicesForVersion(const std::string& descriptor, getDeviceFn getDevice,
-                              std::vector<nn::SharedDevice>* devices,
+                              std::vector<SharedDeviceAndUpdatability>* devices,
                               std::unordered_set<std::string>* registeredDevices) {
     CHECK(devices != nullptr);
     CHECK(registeredDevices != nullptr);
@@ -61,7 +63,7 @@
             if (maybeDevice.has_value()) {
                 auto device = std::move(maybeDevice).value();
                 CHECK(device != nullptr);
-                devices->push_back(std::move(device));
+                devices->push_back({.device = std::move(device)});
             } else {
                 LOG(ERROR) << "getDevice(" << name << ") failed with " << maybeDevice.error().code
                            << ": " << maybeDevice.error().message;
@@ -70,8 +72,9 @@
     }
 }
 
-void getAidlDevices(std::vector<nn::SharedDevice>* devices,
-                    std::unordered_set<std::string>* registeredDevices) {
+void getAidlDevices(std::vector<SharedDeviceAndUpdatability>* devices,
+                    std::unordered_set<std::string>* registeredDevices,
+                    bool includeUpdatableDrivers) {
     CHECK(devices != nullptr);
     CHECK(registeredDevices != nullptr);
 
@@ -82,18 +85,27 @@
 
     // Devices with SDK level lower than 31 (Android S) don't have any AIDL drivers available, so
     // there is no need for a workaround supported on lower levels.
-    if (__builtin_available(android __ANDROID_API_S__, *)) {
+    if (__builtin_available(android __NNAPI_AIDL_MIN_ANDROID_API__, *)) {
         AServiceManager_forEachDeclaredInstance(aidl_hal::IDevice::descriptor,
                                                 static_cast<void*>(&names), callback);
     }
 
     for (const auto& name : names) {
+        bool isDeviceUpdatable = false;
+        if (__builtin_available(android __NNAPI_AIDL_MIN_ANDROID_API__, *)) {
+            const auto instance = std::string(aidl_hal::IDevice::descriptor) + '/' + name;
+            isDeviceUpdatable = AServiceManager_isUpdatableViaApex(instance.c_str());
+        }
+        if (isDeviceUpdatable && !includeUpdatableDrivers) {
+            continue;
+        }
         if (const auto [it, unregistered] = registeredDevices->insert(name); unregistered) {
             auto maybeDevice = aidl_hal::utils::getDevice(name);
             if (maybeDevice.has_value()) {
                 auto device = std::move(maybeDevice).value();
                 CHECK(device != nullptr);
-                devices->push_back(std::move(device));
+                devices->push_back(
+                        {.device = std::move(device), .isDeviceUpdatable = isDeviceUpdatable});
             } else {
                 LOG(ERROR) << "getDevice(" << name << ") failed with " << maybeDevice.error().code
                            << ": " << maybeDevice.error().message;
@@ -102,11 +114,13 @@
     }
 }
 
-std::vector<nn::SharedDevice> getDevices() {
-    std::vector<nn::SharedDevice> devices;
+}  // namespace
+
+std::vector<SharedDeviceAndUpdatability> getDevices(bool includeUpdatableDrivers) {
+    std::vector<SharedDeviceAndUpdatability> devices;
     std::unordered_set<std::string> registeredDevices;
 
-    getAidlDevices(&devices, &registeredDevices);
+    getAidlDevices(&devices, &registeredDevices, includeUpdatableDrivers);
 
     getHidlDevicesForVersion(V1_3::IDevice::descriptor, &V1_3::utils::getDevice, &devices,
                              &registeredDevices);
@@ -120,13 +134,4 @@
     return devices;
 }
 
-}  // namespace
 }  // namespace android::hardware::neuralnetworks::service
-
-namespace android::nn::hal {
-
-std::vector<nn::SharedDevice> getDevices() {
-    return hardware::neuralnetworks::service::getDevices();
-}
-
-}  // namespace android::nn::hal
diff --git a/radio/1.6/IRadio.hal b/radio/1.6/IRadio.hal
index a4e8811..e2d35d0 100644
--- a/radio/1.6/IRadio.hal
+++ b/radio/1.6/IRadio.hal
@@ -145,7 +145,6 @@
      *
      * Response function is IRadioResponse.setupDataCallResponse_1_6()
      *
-     * Note this API is the same as the 1.5
      */
     oneway setupDataCall_1_6(int32_t serial, AccessNetwork accessNetwork,
             DataProfileInfo dataProfileInfo, bool roamingAllowed,
@@ -177,7 +176,7 @@
      * @param serial Serial number of request.
      * @param message GsmSmsMessage as defined in types.hal
      *
-     * Response function is IRadioResponse.sendSMSExpectMoreResponse_1_6()
+     * Response function is IRadioResponse.sendSmsExpectMoreResponse_1_6()
      *
      * Note this API is the same as the 1.0
      *
@@ -185,7 +184,7 @@
      * fails. RadioError:SMS_SEND_FAIL_RETRY means retry (i.e. error cause is 332)
      * and RadioError:GENERIC_FAILURE means no retry (i.e. error cause is 500)
      */
-    oneway sendSMSExpectMore_1_6(int32_t serial, GsmSmsMessage message);
+    oneway sendSmsExpectMore_1_6(int32_t serial, GsmSmsMessage message);
 
     /**
      * Send a CDMA SMS message
@@ -267,7 +266,7 @@
      * 2. Disable NR dual connectivity {NrDualConnectivityState:DISABLE}
      * 3. Disable NR dual connectivity and force secondary cell to be released
      * {NrDualConnectivityState:DISABLE_IMMEDIATE}
-
+     *
      * Response callback is IRadioResponse.setNRDualConnectivityStateResponse()
      */
     oneway setNrDualConnectivityState(int32_t serial,
@@ -372,7 +371,7 @@
      *
      * Response callback is IRadioResponse.getAllowedNetworkTypesBitmapResponse()
      */
-    oneway getAllowedNetworkTypesBitmap(uint32_t serial);
+    oneway getAllowedNetworkTypesBitmap(int32_t serial);
 
     /**
      * Control data throttling at modem.
diff --git a/radio/1.6/IRadioIndication.hal b/radio/1.6/IRadioIndication.hal
index 9788345..05a7585 100644
--- a/radio/1.6/IRadioIndication.hal
+++ b/radio/1.6/IRadioIndication.hal
@@ -107,7 +107,7 @@
     /**
      * Indicates physical channel configurations.
      *
-     * An empty configs list indicates that the radio is in idle mode.
+     * An empty configs list shall be returned when the radio is in idle mode (i.e. RRC idle).
      *
      * @param type Type of radio indication
      * @param configs Vector of PhysicalChannelConfigs
diff --git a/radio/1.6/IRadioResponse.hal b/radio/1.6/IRadioResponse.hal
index f2c06b7..a1286a5 100644
--- a/radio/1.6/IRadioResponse.hal
+++ b/radio/1.6/IRadioResponse.hal
@@ -139,7 +139,7 @@
      *   RadioError:ACCESS_BARRED
      *   RadioError:BLOCKED_DUE_TO_CALL
      */
-    oneway sendSMSExpectMoreResponse_1_6(RadioResponseInfo info, SendSmsResult sms);
+    oneway sendSmsExpectMoreResponse_1_6(RadioResponseInfo info, SendSmsResult sms);
 
     /**
      * @param info Response info struct containing response type, serial no. and error
@@ -232,6 +232,7 @@
      *   RadioError:RADIO_NOT_AVAILABLE
      *   RadioError:INTERNAL_ERR
      *   RadioError:REQUEST_NOT_SUPPORTED
+     *   RadioError:INVALID_STATE
      */
     oneway setNrDualConnectivityStateResponse(RadioResponseInfo info);
 
diff --git a/radio/1.6/types.hal b/radio/1.6/types.hal
index 82c9daa..4b75db5 100644
--- a/radio/1.6/types.hal
+++ b/radio/1.6/types.hal
@@ -55,9 +55,9 @@
 
 struct QosBandwidth {
     /** Maximum bit rate possible on the bearer */
-    int32_t maxBitrateKbps;
+    uint32_t maxBitrateKbps;
     /** Minimum bit rate that is guaranteed to be provided by the network */
-    int32_t guaranteedBitrateKbps;
+    uint32_t guaranteedBitrateKbps;
 };
 
 /** LTE/EPS Quality of Service parameters as per 3gpp spec 24.301 sec 9.9.4.3. */
@@ -106,7 +106,7 @@
 /**
  * Next header protocol numbers defined by IANA, RFC 5237
  */
-enum QosProtocol : int32_t {
+enum QosProtocol : int8_t {
     /** No protocol specified */
     UNSPECIFIED = -1,
     /** Transmission Control Protocol */
@@ -119,14 +119,14 @@
     AH = 51,
 };
 
-enum QosFilterDirection : int32_t {
+enum QosFilterDirection : int8_t {
     DOWNLINK = 0,
     UPLINK = 1,
     BIDIRECTIONAL = 2,
 };
 
 /** Allowed port numbers */
-enum QosPortRange : int32_t {
+enum QosPortRange : uint16_t {
     MIN = 20,
     MAX = 65535
 };
@@ -248,7 +248,7 @@
 };
 
 /** The allowed failure modes on an IWLAN handover failure. */
-enum HandoverFailureMode : int32_t {
+enum HandoverFailureMode : int8_t {
     /**
      * On data handover failure, fallback to the source data transport when the
      * fail cause is due to a hand off preference change.
@@ -379,7 +379,7 @@
 /**
  * NR Dual connectivity state
  */
-enum NrDualConnectivityState: int32_t {
+enum NrDualConnectivityState: int8_t {
     /**
      * Enable NR dual connectivity. Enabled state does not mean dual connectivity
      * is active. It means device is allowed to connect to both primary and secondary.
@@ -408,7 +408,7 @@
     * the estimated maximum sustainable link bandwidth (as would be measured
     * at the Upper PDCP or SNDCP SAP). If the DL Aggregate Maximum Bit Rate is known,
     * this value shall not exceed the DL-AMBR for the Internet PDN connection.
-    * This must be filled with -1 if network is not connected.
+    * This must be filled with 0 if network is not connected.
     */
    uint32_t downlinkCapacityKbps;
 
@@ -418,7 +418,7 @@
     * estimated maximum sustainable link bandwidth (as would be measured at the
     * Upper PDCP or SNDCP SAP). If the UL Aggregate Maximum Bit Rate is known,
     * this value shall not exceed the UL-AMBR for the Internet PDN connection.
-    * This must be filled with -1 if network is not connected.
+    * This must be filled with 0 if network is not connected.
     */
    uint32_t uplinkCapacityKbps;
 
@@ -427,7 +427,8 @@
     * This bandwidth estimate shall be the estimated maximum sustainable link bandwidth
     * (as would be measured at the Upper PDCP or SNDCP SAP). This is valid only
     * in if device is connected to both primary and secodary in dual connected
-    * mode. This must be filled with -1 if secondary is not connected.
+    * mode. This must be filled with 0 if secondary is not connected or if
+    * modem does not support this feature.
     */
    uint32_t secondaryDownlinkCapacityKbps;
 
@@ -436,12 +437,13 @@
     * This bandwidth estimate shall be the estimated
     * maximum sustainable link bandwidth (as would be measured at the Upper PDCP or SNDCP SAP).
     * This is valid only in if device is connected to both primary and secodary in dual connected
-    * mode.This must be filled with -1 if secondary is not connected.
+    * mode.This must be filled with 0 if secondary is not connected or if modem
+    * does not support this feature.
     */
    uint32_t secondaryUplinkCapacityKbps;
 };
 
-enum DataThrottlingAction : int32_t {
+enum DataThrottlingAction : int8_t {
     /* Clear all existing data throttling. */
     NO_DATA_THROTTLING = 0,
 
@@ -579,9 +581,9 @@
      *
      * Reference: 3GPP TS 138.214 section 5.2.2.1.
      *
-     * Range [0, 15], INT_MAX means invalid/unreported.
+     * Range [0, 15], 0xFF means invalid/unreported.
      */
-    vec<uint32_t> csiCqiReport;
+    vec<uint8_t> csiCqiReport;
 };
 
 /**
@@ -738,22 +740,19 @@
 
         EutranRegistrationInfo eutranInfo;
 
-        struct NgranRegistrationInfo {
-            /**
-             * Network capabilities for voice over PS services. This info is valid only on NR
-             * network and must be present when the device is camped on NR. VopsInfo must be
-             * empty when the device is not camped on NR.
-             */
-            NrVopsInfo nrVopsInfo;
-        } ngranInfo;
+        /**
+         * Network capabilities for voice over PS services. This info is valid only on NR
+         * network and must be present when the device is camped on NR. VopsInfo must be
+         * empty when the device is not camped on NR.
+         */
+        NrVopsInfo ngranNrVopsInfo;
 
-        struct GeranRegistrationInfo {
-            /**
-             * True if the dual transfer mode is supported.
-             * Refer to 3GPP TS 44.108 section 3.4.25.3
-             */
-            bool dtmSupported;
-        } geranInfo;
+        /**
+         * True if the dual transfer mode is supported.
+         * Refer to 3GPP TS 44.108 section 3.4.25.3
+         */
+        bool geranDtmSupported;
+
     } accessTechnologySpecificInfo;
 };
 
@@ -780,10 +779,10 @@
     int32_t uplinkChannelNumber;
 
     /** Downlink cell bandwidth, in kHz */
-    int32_t cellBandwidthDownlink;
+    int32_t cellBandwidthDownlinkKhz;
 
     /** Uplink cell bandwidth, in kHz */
-    int32_t cellBandwidthUplink;
+    int32_t cellBandwidthUplinkKhz;
 
     /**
      * A list of data calls mapped to this physical channel. The context id must match the cid of
@@ -1069,7 +1068,7 @@
     SscMode value;
 };
 
-enum SliceStatus : int32_t {
+enum SliceStatus : int8_t {
     UNKNOWN,
     CONFIGURED, // Configured but not allowed or rejected yet
     ALLOWED,    // Allowed to be used
@@ -1082,7 +1081,7 @@
  * Enum representing session and service continuity mode as defined in
  * 3GPP TS 23.501.
  */
-enum SscMode : int32_t {
+enum SscMode : int8_t {
     MODE_1 = 1,
     MODE_2 = 2,
     MODE_3 = 3,
@@ -1091,7 +1090,7 @@
 /**
  * Public key type from carrier certificate.
  */
-enum PublicKeyType : int32_t {
+enum PublicKeyType : int8_t {
     EPDG    = 1,                   // Key type to be used for ePDG
     WLAN    = 2,                   // Key type to be used for WLAN
 };
@@ -1200,7 +1199,7 @@
  *   chunk of phonebook data, means this is a last indication with the left
  *   data.
  */
-enum PbReceivedStatus : int32_t {
+enum PbReceivedStatus : int8_t {
     PB_RECEIVED_OK = 1,
     PB_RECEIVED_ERROR = 2,
     PB_RECEIVED_ABORT = 3,
diff --git a/radio/1.6/vts/functional/Android.bp b/radio/1.6/vts/functional/Android.bp
index 65b0dd0..2bc6af3 100644
--- a/radio/1.6/vts/functional/Android.bp
+++ b/radio/1.6/vts/functional/Android.bp
@@ -28,6 +28,7 @@
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: [
         "radio_hidl_hal_api.cpp",
+        "radio_hidl_hal_misc.cpp",
         "radio_hidl_hal_test.cpp",
         "radio_response.cpp",
         "radio_indication.cpp",
diff --git a/radio/1.6/vts/functional/radio_hidl_hal_api.cpp b/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
index a9c21ff..7c05984 100644
--- a/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
@@ -204,10 +204,10 @@
 }
 
 /*
- * Test IRadio_1_6.sendSMSExpectMore() for the response returned.
+ * Test IRadio_1_6.sendSmsExpectMore() for the response returned.
  */
-TEST_P(RadioHidlTest_v1_6, sendSMSExpectMore_1_6) {
-    LOG(DEBUG) << "sendSMSExpectMore";
+TEST_P(RadioHidlTest_v1_6, sendSmsExpectMore_1_6) {
+    LOG(DEBUG) << "sendSmsExpectMore";
     serial = GetRandomSerialNumber();
     GsmSmsMessage msg;
     msg.smscPdu = "";
@@ -227,7 +227,7 @@
              ::android::hardware::radio::V1_6::RadioError::SIM_ABSENT},
             CHECK_GENERAL_ERROR));
     }
-    LOG(DEBUG) << "sendSMSExpectMore finished";
+    LOG(DEBUG) << "sendSmsExpectMore finished";
 }
 
 /*
@@ -369,7 +369,7 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+    if (getRadioHalCapabilities()) {
         ASSERT_TRUE(CheckAnyOfErrors(
                 radioRsp_v1_6->rspInfo.error,
                 {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
@@ -378,6 +378,7 @@
                 CheckAnyOfErrors(radioRsp_v1_6->rspInfo.error,
                                  {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
                                   ::android::hardware::radio::V1_6::RadioError::INTERNAL_ERR,
+                                  ::android::hardware::radio::V1_6::RadioError::INVALID_STATE,
                                   ::android::hardware::radio::V1_6::RadioError::NONE}));
     }
 }
@@ -394,7 +395,7 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+    if (getRadioHalCapabilities()) {
         ASSERT_TRUE(CheckAnyOfErrors(
                 radioRsp_v1_6->rspInfo.error,
                 {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
@@ -420,7 +421,7 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+    if (getRadioHalCapabilities()) {
         ASSERT_TRUE(CheckAnyOfErrors(
                 radioRsp_v1_6->rspInfo.error,
                 {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
@@ -432,6 +433,8 @@
                  ::android::hardware::radio::V1_6::RadioError::NONE,
                  ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
     }
+
+    sleep(1);
     serial = GetRandomSerialNumber();
 
     res = radio_v1_6->setDataThrottling(serial, DataThrottlingAction::THROTTLE_ANCHOR_CARRIER,
@@ -440,7 +443,7 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+    if (getRadioHalCapabilities()) {
         ASSERT_TRUE(CheckAnyOfErrors(
                 radioRsp_v1_6->rspInfo.error,
                 {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
@@ -452,6 +455,8 @@
                  ::android::hardware::radio::V1_6::RadioError::NONE,
                  ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
     }
+
+    sleep(1);
     serial = GetRandomSerialNumber();
 
     res = radio_v1_6->setDataThrottling(serial, DataThrottlingAction::HOLD, 60000);
@@ -460,7 +465,7 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+    if (getRadioHalCapabilities()) {
         ASSERT_TRUE(CheckAnyOfErrors(
                 radioRsp_v1_6->rspInfo.error,
                 {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
@@ -472,6 +477,8 @@
                  ::android::hardware::radio::V1_6::RadioError::NONE,
                  ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
     }
+
+    sleep(1);
     serial = GetRandomSerialNumber();
 
     res = radio_v1_6->setDataThrottling(serial, DataThrottlingAction::NO_DATA_THROTTLING, 60000);
@@ -479,7 +486,7 @@
     EXPECT_EQ(std::cv_status::no_timeout, wait());
     EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
-    if (getRadioHalCapabilities().modemReducedFeatureSet1) {
+    if (getRadioHalCapabilities()) {
         ASSERT_TRUE(CheckAnyOfErrors(
                 radioRsp_v1_6->rspInfo.error,
                 {::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
diff --git a/radio/1.6/vts/functional/radio_hidl_hal_misc.cpp b/radio/1.6/vts/functional/radio_hidl_hal_misc.cpp
new file mode 100644
index 0000000..4222441
--- /dev/null
+++ b/radio/1.6/vts/functional/radio_hidl_hal_misc.cpp
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <regex>
+
+#include <android-base/logging.h>
+#include <radio_hidl_hal_utils_v1_6.h>
+
+/*
+ * Test IRadio.getAvailableNetworks() for the response returned.
+ */
+TEST_P(RadioHidlTest_v1_6, getAvailableNetworks) {
+    LOG(DEBUG) << "getAvailableNetworks";
+    serial = GetRandomSerialNumber();
+
+    radio_v1_6->getAvailableNetworks(serial);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(serial, radioRsp_v1_6->rspInfo_v1_0.serial);
+    ASSERT_TRUE(radioRsp_v1_6->rspInfo_v1_0.type == RadioResponseType::SOLICITED ||
+                radioRsp_v1_6->rspInfo_v1_0.type == RadioResponseType::SOLICITED_ACK_EXP);
+
+    if (cardStatus.base.base.base.cardState == CardState::ABSENT) {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo_v1_0.error,
+                {::android::hardware::radio::V1_0::RadioError::NONE,
+                 ::android::hardware::radio::V1_0::RadioError::CANCELLED,
+                 ::android::hardware::radio::V1_0::RadioError::DEVICE_IN_USE,
+                 ::android::hardware::radio::V1_0::RadioError::MODEM_ERR,
+                 ::android::hardware::radio::V1_0::RadioError::OPERATION_NOT_ALLOWED},
+                CHECK_GENERAL_ERROR));
+    } else if (radioRsp_v1_6->rspInfo_v1_0.error ==
+               ::android::hardware::radio::V1_0::RadioError::NONE) {
+        static const std::regex kOperatorNumericRe("^[0-9]{5,6}$");
+        for (OperatorInfo info : radioRsp_v1_6->networkInfos) {
+            if (info.operatorNumeric != nullptr) {
+                ASSERT_TRUE(
+                        std::regex_match(std::string(info.operatorNumeric), kOperatorNumericRe));
+            }
+        }
+    }
+
+    LOG(DEBUG) << "getAvailableNetworks finished";
+}
diff --git a/radio/1.6/vts/functional/radio_hidl_hal_test.cpp b/radio/1.6/vts/functional/radio_hidl_hal_test.cpp
index 6255f66..5d514a0 100644
--- a/radio/1.6/vts/functional/radio_hidl_hal_test.cpp
+++ b/radio/1.6/vts/functional/radio_hidl_hal_test.cpp
@@ -86,16 +86,14 @@
  * disabled.
  * <p/>
  * Typical usage within VTS:
- * if (getRadioHalCapabilities().modemReducedFeatureSet) return;
+ * if (getRadioHalCapabilities()) return;
  */
-HalDeviceCapabilities RadioHidlTest_v1_6::getRadioHalCapabilities() {
+bool RadioHidlTest_v1_6::getRadioHalCapabilities() {
     sp<::android::hardware::radio::config::V1_3::IRadioConfig> radioConfig_v1_3 =
             ::android::hardware::radio::config::V1_3::IRadioConfig::getService();
     if (radioConfig_v1_3.get() == nullptr) {
         // If v1_3 isn't present, the values are initialized to false
-        HalDeviceCapabilities radioHalCapabilities;
-        memset(&radioHalCapabilities, 0, sizeof(radioHalCapabilities));
-        return radioHalCapabilities;
+        return false;
     } else {
         // Get radioHalDeviceCapabilities from the radio config
         sp<RadioConfigResponse> radioConfigRsp = new (std::nothrow) RadioConfigResponse(*this);
@@ -104,6 +102,6 @@
 
         radioConfig_v1_3->getHalDeviceCapabilities(serial);
         EXPECT_EQ(std::cv_status::no_timeout, wait());
-        return radioConfigRsp->halDeviceCapabilities;
+        return radioConfigRsp->modemReducedFeatureSet1;
     }
 }
diff --git a/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h b/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h
index 4fc17e5..3185f98 100644
--- a/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h
+++ b/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h
@@ -38,14 +38,12 @@
 using namespace ::android::hardware::radio::V1_2;
 using namespace ::android::hardware::radio::V1_1;
 using namespace ::android::hardware::radio::V1_0;
-using namespace ::android::hardware::radio::config::V1_3;
 
 using ::android::sp;
 using ::android::hardware::hidl_string;
 using ::android::hardware::hidl_vec;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
-using ::android::hardware::radio::config::V1_3::HalDeviceCapabilities;
 
 #define MODEM_EMERGENCY_CALL_ESTABLISH_TIME 3
 #define MODEM_EMERGENCY_CALL_DISCONNECT_TIME 3
@@ -62,6 +60,7 @@
 
   public:
     hidl_vec<RadioBandMode> radioBandModes;
+    hidl_vec<OperatorInfo> networkInfos;
 
     ::android::hardware::radio::V1_0::RadioResponseInfo rspInfo_v1_0;
     ::android::hardware::radio::V1_6::RadioResponseInfo rspInfo;
@@ -762,7 +761,7 @@
             const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
             const SendSmsResult& sms);
 
-    Return<void> sendSMSExpectMoreResponse_1_6(
+    Return<void> sendSmsExpectMoreResponse_1_6(
             const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
             const SendSmsResult& sms);
 
@@ -1115,7 +1114,7 @@
   public:
     virtual void SetUp() override;
 
-    HalDeviceCapabilities getRadioHalCapabilities();
+    bool getRadioHalCapabilities();
 
     /* radio service handle */
     sp<::android::hardware::radio::V1_6::IRadio> radio_v1_6;
diff --git a/radio/1.6/vts/functional/radio_response.cpp b/radio/1.6/vts/functional/radio_response.cpp
index 2b6d1bb..6e7b86f 100644
--- a/radio/1.6/vts/functional/radio_response.cpp
+++ b/radio/1.6/vts/functional/radio_response.cpp
@@ -274,8 +274,11 @@
 }
 
 Return<void> RadioResponse_v1_6::getAvailableNetworksResponse(
-        const ::android::hardware::radio::V1_0::RadioResponseInfo& /*info*/,
-        const ::android::hardware::hidl_vec<OperatorInfo>& /*networkInfos*/) {
+        const ::android::hardware::radio::V1_0::RadioResponseInfo& info,
+        const ::android::hardware::hidl_vec<OperatorInfo>& networkInfos) {
+    rspInfo_v1_0 = info;
+    this->networkInfos = networkInfos;
+    parent_v1_6.notify(info.serial);
     return Void();
 }
 
@@ -1090,7 +1093,7 @@
     return Void();
 }
 
-Return<void> RadioResponse_v1_6::sendSMSExpectMoreResponse_1_6(
+Return<void> RadioResponse_v1_6::sendSmsExpectMoreResponse_1_6(
         const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
         const SendSmsResult& sms) {
     rspInfo = info;
diff --git a/radio/config/1.3/Android.bp b/radio/config/1.3/Android.bp
index cc5944d..dc0d82c 100644
--- a/radio/config/1.3/Android.bp
+++ b/radio/config/1.3/Android.bp
@@ -13,7 +13,6 @@
     name: "android.hardware.radio.config@1.3",
     root: "android.hardware",
     srcs: [
-        "types.hal",
         "IRadioConfig.hal",
         "IRadioConfigResponse.hal",
     ],
diff --git a/radio/config/1.3/IRadioConfigResponse.hal b/radio/config/1.3/IRadioConfigResponse.hal
index 863754f..f6aee31 100644
--- a/radio/config/1.3/IRadioConfigResponse.hal
+++ b/radio/config/1.3/IRadioConfigResponse.hal
@@ -18,7 +18,6 @@
 
 import android.hardware.radio@1.6::RadioResponseInfo;
 import @1.2::IRadioConfigResponse;
-import HalDeviceCapabilities;
 
 /**
  * Interface declaring response functions to solicited radio config requests.
@@ -26,8 +25,20 @@
 interface IRadioConfigResponse extends @1.2::IRadioConfigResponse {
     /**
      * @param info Response info struct containing response type, serial no. and error
-     * @param capabilities Capabilities struct containing the capabilities of the
-     * device related to the Radio HAL
+     * @param modemReducedFeatureSet1 True indicates that the modem does NOT support the following
+     *        features.
+     *        - Providing either
+     *          android.hardware.radio@1.6::LinkCapacityEstimate:secondaryDownlinkCapacityKbps
+     *          or android.hardware.radio@1.6::LinkCapacityEstimate:secondaryUplinkCapacityKbps
+     *          when given from
+     *          android.hardware.radio@1.6::RadioIndication:currentLinkCapacityEstimate
+     *        - Calling android.hardware.radio@1.6::IRadio.setNrDualConnectivityState
+     *          or querying android.hardware.radio@1.6::IRadio.isNrDualConnectivityEnabled
+     *        - Requesting android.hardware.radio@1.6::IRadio.setDataThrottling()
+     *        - Providing android.hardware.radio@1.6::SlicingConfig through
+     *          android.hardware.radio@1.6::getSlicingConfig()
+     *        - Providing android.hardware.radio@1.6::PhysicalChannelConfig through
+     *          android.hardware.radio@1.6::IRadioIndication.currentPhysicalChannelConfigs_1_6()
      *
      * Valid errors returned:
      *   RadioError:NONE
@@ -35,5 +46,5 @@
      *   RadioError:INTERNAL_ERR
      */
     oneway getHalDeviceCapabilitiesResponse(RadioResponseInfo info,
-        HalDeviceCapabilities capabilities);
+        bool modemReducedFeatureSet1);
 };
diff --git a/radio/config/1.3/vts/functional/radio_config_hidl_hal_utils.h b/radio/config/1.3/vts/functional/radio_config_hidl_hal_utils.h
index 895ae08..7440054 100644
--- a/radio/config/1.3/vts/functional/radio_config_hidl_hal_utils.h
+++ b/radio/config/1.3/vts/functional/radio_config_hidl_hal_utils.h
@@ -29,7 +29,6 @@
 #include <android/hardware/radio/config/1.2/types.h>
 #include <android/hardware/radio/config/1.3/IRadioConfig.h>
 #include <android/hardware/radio/config/1.3/IRadioConfigResponse.h>
-#include <android/hardware/radio/config/1.3/types.h>
 #include <gtest/gtest.h>
 #include <hidl/GtestPrinter.h>
 #include <hidl/ServiceManagement.h>
@@ -47,7 +46,6 @@
 using ::android::hardware::radio::config::V1_1::ModemsConfig;
 using ::android::hardware::radio::config::V1_1::PhoneCapability;
 using ::android::hardware::radio::config::V1_2::SimSlotStatus;
-using ::android::hardware::radio::config::V1_3::HalDeviceCapabilities;
 using ::android::hardware::radio::config::V1_3::IRadioConfig;
 using ::android::hardware::radio::V1_0::RadioResponseInfo;
 
@@ -63,7 +61,7 @@
   public:
     RadioResponseInfo rspInfo;
     PhoneCapability phoneCap;
-    HalDeviceCapabilities halDeviceCapabilities;
+    bool modemReducedFeatureSet1;
 
     RadioConfigResponse(RadioResponseWaiter& parent);
     virtual ~RadioConfigResponse() = default;
@@ -91,7 +89,7 @@
 
     Return<void> getHalDeviceCapabilitiesResponse(
             const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
-            const HalDeviceCapabilities& halDeviceCapabilities);
+            bool modemReducedFeatureSet1);
 };
 
 /* Callback class for radio config indication */
diff --git a/radio/config/1.3/vts/functional/radio_config_response.cpp b/radio/config/1.3/vts/functional/radio_config_response.cpp
index 11e3cce..6b2d27c 100644
--- a/radio/config/1.3/vts/functional/radio_config_response.cpp
+++ b/radio/config/1.3/vts/functional/radio_config_response.cpp
@@ -65,7 +65,7 @@
 
 Return<void> RadioConfigResponse::getHalDeviceCapabilitiesResponse(
         const ::android::hardware::radio::V1_6::RadioResponseInfo& /* info */,
-        const ::android::hardware::radio::config::V1_3::HalDeviceCapabilities& capabilities) {
-    halDeviceCapabilities = capabilities;
+        bool modemReducedFeatures) {
+    modemReducedFeatureSet1 = modemReducedFeatures;
     return Void();
 }
diff --git a/rebootescrow/aidl/default/Android.bp b/rebootescrow/aidl/default/Android.bp
index b9fb2a9..1f67a3e 100644
--- a/rebootescrow/aidl/default/Android.bp
+++ b/rebootescrow/aidl/default/Android.bp
@@ -87,7 +87,9 @@
     ],
     static_libs: [
         "libhadamardutils",
-        "libgtest_prod",
+    ],
+    header_libs: [
+        "libgtest_prod_headers",
     ],
     shared_libs: [
         "liblog",
diff --git a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl
index bf30999..3f75af6 100644
--- a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl
+++ b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl
@@ -44,10 +44,9 @@
   void deleteKey(in byte[] keyBlob);
   void deleteAllKeys();
   void destroyAttestationIds();
-  android.hardware.security.keymint.BeginResult begin(in android.hardware.security.keymint.KeyPurpose purpose, in byte[] keyBlob, in android.hardware.security.keymint.KeyParameter[] params, in android.hardware.security.keymint.HardwareAuthToken authToken);
+  android.hardware.security.keymint.BeginResult begin(in android.hardware.security.keymint.KeyPurpose purpose, in byte[] keyBlob, in android.hardware.security.keymint.KeyParameter[] params, in @nullable android.hardware.security.keymint.HardwareAuthToken authToken);
   void deviceLocked(in boolean passwordOnly, in @nullable android.hardware.security.secureclock.TimeStampToken timestampToken);
   void earlyBootEnded();
   byte[] convertStorageKeyToEphemeral(in byte[] storageKeyBlob);
-  byte[] performOperation(in byte[] request);
   const int AUTH_TOKEN_MAC_LENGTH = 32;
 }
diff --git a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IRemotelyProvisionedComponent.aidl b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IRemotelyProvisionedComponent.aidl
index 88c479c..f566462 100644
--- a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IRemotelyProvisionedComponent.aidl
+++ b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IRemotelyProvisionedComponent.aidl
@@ -35,6 +35,7 @@
 /* @hide */
 @VintfStability
 interface IRemotelyProvisionedComponent {
+  android.hardware.security.keymint.RpcHardwareInfo getHardwareInfo();
   byte[] generateEcdsaP256KeyPair(in boolean testMode, out android.hardware.security.keymint.MacedPublicKey macedPublicKey);
   byte[] generateCertificateRequest(in boolean testMode, in android.hardware.security.keymint.MacedPublicKey[] keysToSign, in byte[] endpointEncryptionCertChain, in byte[] challenge, out android.hardware.security.keymint.DeviceInfo deviceInfo, out android.hardware.security.keymint.ProtectedData protectedData);
   const int STATUS_FAILED = 1;
diff --git a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/RpcHardwareInfo.aidl b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/RpcHardwareInfo.aidl
new file mode 100644
index 0000000..06bce19
--- /dev/null
+++ b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/RpcHardwareInfo.aidl
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.security.keymint;
+/* @hide */
+@RustDerive(Clone=true, Eq=true, Hash=true, Ord=true, PartialEq=true, PartialOrd=true) @VintfStability
+parcelable RpcHardwareInfo {
+  int versionNumber;
+  @utf8InCpp String rpcAuthorName;
+  int supportedEekCurve = 0;
+  const int CURVE_NONE = 0;
+  const int CURVE_P256 = 1;
+  const int CURVE_25519 = 2;
+}
diff --git a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/Tag.aidl b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/Tag.aidl
index 7591318..e310b44 100644
--- a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/Tag.aidl
+++ b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/Tag.aidl
@@ -48,7 +48,6 @@
   RSA_PUBLIC_EXPONENT = 1342177480,
   INCLUDE_UNIQUE_ID = 1879048394,
   RSA_OAEP_MGF_DIGEST = 536871115,
-  BLOB_USAGE_REQUIREMENTS = 268435757,
   BOOTLOADER_ONLY = 1879048494,
   ROLLBACK_RESISTANCE = 1879048495,
   HARDWARE_TYPE = 268435760,
diff --git a/security/keymint/aidl/android/hardware/security/keymint/BeginResult.aidl b/security/keymint/aidl/android/hardware/security/keymint/BeginResult.aidl
index 2304a58..b5336b9 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/BeginResult.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/BeginResult.aidl
@@ -25,7 +25,10 @@
  */
 @VintfStability
 parcelable BeginResult {
-    /* This is the challenge used in verifyAuthorization.  It must be a nonce. */
+    /**
+     * This is the challenge used to verify authorization of an operation.
+     * See IKeyMintOperation.aidl entrypoints updateAad() and update().
+     */
     long challenge;
 
     /**
diff --git a/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl b/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
index 1c503c2..603e33f 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
@@ -107,7 +107,6 @@
  *
  *      - 168-bit keys.
  *      - CBC and ECB mode.
-
  *      - CBC and ECB modes must support unpadded and PKCS7 padding modes.  With no padding CBC and
  *        ECB-mode operations must fail with ErrorCode::INVALID_INPUT_LENGTH if the input isn't a
  *        multiple of the DES block size.
@@ -150,8 +149,8 @@
  *
  * The IKeyMintDevice must ignore unknown tags.
  *
- * The caller must always provide the current date time in the keyParameter CREATION_DATETIME
- * tags.
+ * The caller may provide the current date time in the keyParameter CREATION_DATETIME tag, but
+ * this is optional and informational only.
  *
  * All authorization tags and their values enforced by an IKeyMintDevice must be cryptographically
  * bound to the private/secret key material such that any modification of the portion of the key
@@ -185,7 +184,7 @@
  * startup, preferably by the bootloader.  This bitstring must be cryptographically bound to every
  * key managed by the IKeyMintDevice.  As above, the recommended mechanism for this cryptographic
  * binding is to include the Root of Trust data in the input to the key derivation function used to
- * derive a key that is used to encryp the private/secret key material.
+ * derive a key that is used to encrypt the private/secret key material.
  *
  * The root of trust consists of a bitstring that must be derived from the public key used by
  * Verified Boot to verify the signature on the boot image and from the lock state of the
@@ -247,7 +246,7 @@
      * Generates a new cryptographic key, specifying associated parameters, which must be
      * cryptographically bound to the key.  IKeyMintDevice implementations must disallow any use
      * of a key in any way inconsistent with the authorizations specified at generation time.  With
-     * respect to parameters that the secure environment cannot enforce, the secure envionment's
+     * respect to parameters that the secure environment cannot enforce, the secure environment's
      * obligation is limited to ensuring that the unenforceable parameters associated with the key
      * cannot be modified.  In addition, the characteristics returned by generateKey places
      * parameters correctly in the tee-enforced and strongbox-enforced lists.
@@ -257,9 +256,6 @@
      *
      * o Tag::ORIGIN with the value KeyOrigin::GENERATED.
      *
-     * o Tag::BLOB_USAGE_REQUIREMENTS with the appropriate value (see KeyBlobUsageRequirements in
-     *   Tag.aidl).
-     *
      * o Tag::OS_VERSION, Tag::OS_PATCHLEVEL, Tag::VENDOR_PATCHLEVEL and Tag::BOOT_PATCHLEVEL with
      *   appropriate values.
      *
@@ -271,7 +267,7 @@
      *
      * The following parameters are required to generate an RSA key:
      *
-     * o Tag::Key_SIZE specifies the size of the public modulus, in bits.  If omitted, generateKey
+     * o Tag::KEY_SIZE specifies the size of the public modulus, in bits.  If omitted, generateKey
      *   must return ErrorCode::UNSUPPORTED_KEY_SIZE.  Required values for TEE IKeyMintDevice
      *   implementations are 1024, 2048, 3072 and 4096.  StrongBox IKeyMintDevice implementations
      *   must support 2048.
@@ -288,7 +284,7 @@
      *   except AGREE_KEY must be supported for RSA keys.
      *
      * o Tag::DIGEST specifies digest algorithms that may be used with the new key.  TEE
-     *   IKeyMintDevice implementatiosn must support all Digest values (see digest.aidl) for RSA
+     *   IKeyMintDevice implementations must support all Digest values (see digest.aidl) for RSA
      *   keys.  StrongBox IKeyMintDevice implementations must support SHA_2_256.
      *
      * o Tag::PADDING specifies the padding modes that may be used with the new
@@ -298,11 +294,9 @@
      *
      * == ECDSA Keys ==
      *
-     * Either Tag::KEY_SIZE or Tag::EC_CURVE must be provided to generate an ECDSA key.  If neither
-     * is provided, generateKey must return ErrorCode::UNSUPPORTED_KEY_SIZE.  If Tag::KEY_SIZE is
-     * provided, the possible values are 224, 256, 384 and 521, and must be mapped to Tag::EC_CURVE
-     * values P_224, P_256, P_384 and P_521, respectively.  TEE IKeyMintDevice implementations
-     * must support all curves.  StrongBox implementations must support P_256.
+     * Tag::EC_CURVE must be provided to generate an ECDSA key.  If it is not provided, generateKey
+     * must return ErrorCode::UNSUPPORTED_KEY_SIZE. TEE IKeyMintDevice implementations must support
+     * all curves.  StrongBox implementations must support P_256.
      *
      * == AES Keys ==
      *
@@ -312,6 +306,10 @@
      * If Tag::BLOCK_MODE is specified with value BlockMode::GCM, then the caller must also provide
      * Tag::MIN_MAC_LENGTH.  If omitted, generateKey must return ErrorCode::MISSING_MIN_MAC_LENGTH.
      *
+     * == 3DES Keys ==
+     *
+     * Only Tag::KEY_SIZE is required to generate an 3DES key, and its value must be 168.  If
+     * omitted, generateKey must return ErrorCode::UNSUPPORTED_KEY_SIZE.
      *
      * @param keyParams Key generation parameters are defined as KeyMintDevice tag/value pairs,
      *        provided in params.  See above for detailed specifications of which tags are required
@@ -325,6 +323,10 @@
      *        return ErrorCode::INCOMPATIBLE_PURPOSE.  If the provided AttestationKey has an empty
      *        issuer subject name, the IKeyMintDevice must return ErrorCode::INVALID_ARGUMENT.
      *
+     *        If `attestationKey` is null and `keyParams` contains Tag::ATTESTATION_CHALLENGE but
+     *        the KeyMint implementation does not have factory-provisioned attestation keys, it must
+     *        return ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED.
+     *
      * @return The result of key creation.  See KeyCreationResult.aidl.
      */
     KeyCreationResult generateKey(
@@ -348,13 +350,12 @@
      *
      * o Tag::ORIGIN (returned in keyCharacteristics) must have the value KeyOrigin::IMPORTED.
      *
-     * @param inKeyParams Key generation parameters are defined as KeyMintDevice tag/value pairs,
+     * @param keyParams Key generation parameters are defined as KeyMintDevice tag/value pairs,
      *        provided in params.
      *
-     * @param inKeyFormat The format of the key material to import.  See KeyFormat in
-     *        keyformat.aidl.
+     * @param keyFormat The format of the key material to import.  See KeyFormat in keyformat.aidl.
      *
-     * @param inKeyData The key material to import, in the format specified in keyFormat.
+     * @param keyData The key material to import, in the format specified in keyFormat.
      *
      * @param attestationKey, if provided, specifies the key that must be used to sign the
      *        attestation certificate.  If `keyParams` does not contain a Tag::ATTESTATION_CHALLENGE
@@ -364,6 +365,10 @@
      *        return ErrorCode::INCOMPATIBLE_PURPOSE.  If the provided AttestationKey has an empty
      *        issuer subject name, the IKeyMintDevice must return ErrorCode::INVALID_ARGUMENT.
      *
+     *        If `attestationKey` is null and `keyParams` contains Tag::ATTESTATION_CHALLENGE but
+     *        the KeyMint implementation does not have factory-provisioned attestation keys, it must
+     *        return ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED.
+     *
      * @return The result of key creation.  See KeyCreationResult.aidl.
      */
     KeyCreationResult importKey(in KeyParameter[] keyParams, in KeyFormat keyFormat,
@@ -373,9 +378,8 @@
      * Securely imports a key, or key pair, returning a key blob and a description of the imported
      * key.
      *
-     * @param inWrappedKeyData The wrapped key material to import.
-     *     TODO(seleneh) Decide if we want the wrapped key in DER-encoded ASN.1 format or CBOR
-     *     format or both.  And specify the standarized format.
+     * @param wrappedKeyData The wrapped key material to import, as ASN.1 DER-encoded data
+     *        corresponding to the following schema.
      *
      *     KeyDescription ::= SEQUENCE(
      *         keyFormat INTEGER,                   # Values from KeyFormat enum.
@@ -393,20 +397,20 @@
      *
      *     Where:
      *
-     *     o keyFormat is an integer from the KeyFormat enum, defining the format of the plaintext
+     *     - keyFormat is an integer from the KeyFormat enum, defining the format of the plaintext
      *       key material.
-     *     o keyParams is the characteristics of the key to be imported (as with generateKey or
+     *     - keyParams is the characteristics of the key to be imported (as with generateKey or
      *       importKey).  If the secure import is successful, these characteristics must be
      *       associated with the key exactly as if the key material had been insecurely imported
-     *       with the IKeyMintDevice::importKey.  See attestKey() for documentation of the
-     *       AuthorizationList schema.
-     *     o encryptedTransportKey is a 256-bit AES key, XORed with a masking key and then encrypted
+     *       with the IKeyMintDevice::importKey.  See KeyCreationResult.aidl for documentation of
+     *       the AuthorizationList schema.
+     *     - encryptedTransportKey is a 256-bit AES key, XORed with a masking key and then encrypted
      *       with the wrapping key specified by wrappingKeyBlob.
-     *     o keyDescription is a KeyDescription, above.
-     *     o encryptedKey is the key material of the key to be imported, in format keyFormat, and
+     *     - keyDescription is a KeyDescription, above.
+     *     - encryptedKey is the key material of the key to be imported, in format keyFormat, and
      *       encrypted with encryptedEphemeralKey in AES-GCM mode, with the DER-encoded
      *       representation of keyDescription provided as additional authenticated data.
-     *     o tag is the tag produced by the AES-GCM encryption of encryptedKey.
+     *     - tag is the tag produced by the AES-GCM encryption of encryptedKey.
      *
      * So, importWrappedKey does the following:
      *
@@ -435,7 +439,7 @@
      *
      * @param passwordSid specifies the password secure ID (SID) of the user that owns the key being
      *        installed.  If the authorization list in wrappedKeyData contains a
-     *        Tag::USER_SECURE_IDwith a value that has the HardwareAuthenticatorType::PASSWORD bit
+     *        Tag::USER_SECURE_ID with a value that has the HardwareAuthenticatorType::PASSWORD bit
      *        set, the constructed key must be bound to the SID value provided by this argument.  If
      *        the wrappedKeyData does not contain such a tag and value, this argument must be
      *        ignored.
@@ -478,9 +482,9 @@
      * patch level and OS version.  This requirement is relaxed for 4.0::IKeymasterDevice and
      * IKeyMintDevice, and the OS version in the boot image footer is no longer used.
      *
-     * @param inKeyBlobToUpgrade The opaque descriptor returned by generateKey() or importKey();
+     * @param keyBlobToUpgrade The opaque descriptor returned by generateKey() or importKey().
      *
-     * @param inUpgradeParams A parameter list containing any parameters needed to complete the
+     * @param upgradeParams A parameter list containing any parameters needed to complete the
      *        upgrade, including Tag::APPLICATION_ID and Tag::APPLICATION_DATA.
      *
      * @return A new key blob that references the same key as keyBlobToUpgrade, but is in the new
@@ -494,7 +498,9 @@
      * render the key permanently unusable.  Keys without Tag::ROLLBACK_RESISTANCE may or
      * may not be rendered unusable.
      *
-     * @param inKeyBlob The opaque descriptor returned by generateKey() or importKey();
+     * @param keyBlob The opaque descriptor returned by generateKey() or importKey();
+     *
+     * @return error See the ErrorCode enum.
      */
     void deleteKey(in byte[] keyBlob);
 
@@ -503,8 +509,6 @@
      * this function is called all keys with Tag::ROLLBACK_RESISTANCE in their hardware-enforced
      * authorization lists must be rendered permanently unusable.  Keys without
      * Tag::ROLLBACK_RESISTANCE may or may not be rendered unusable.
-     *
-     * @return error See the ErrorCode enum.
      */
     void deleteAllKeys();
 
@@ -523,28 +527,27 @@
 
     /**
      * Begins a cryptographic operation using the specified key.  If all is well, begin() must
-     * return ErrorCode::OK and create an operation handle which must be passed to subsequent calls
-     * to update(), finish() or abort().
+     * return ErrorCode::OK and create an IKeyMintOperation handle which will be used to perform
+     * the cryptographic operation.
      *
-     * It is critical that each call to begin() be paired with a subsequent call to finish() or
-     * abort(), to allow the IKeyMintDevice implementation to clean up any internal operation
-     * state.  The caller's failure to do this may leak internal state space or other internal
-     * resources and may eventually cause begin() to return ErrorCode::TOO_MANY_OPERATIONS when it
-     * runs out of space for operations.  Any result other than ErrorCode::OK from begin(), update()
-     * or finish() implicitly aborts the operation, in which case abort() need not be called (and
-     * must return ErrorCode::INVALID_OPERATION_HANDLE if called).  IKeyMintDevice implementations
-     * must support 32 concurrent operations.
+     * It is critical that each successful call to begin() be paired with a subsequent call to
+     * finish() or abort() on the resulting IKeyMintOperation, to allow the IKeyMintDevice
+     * implementation to clean up any internal operation state.  The caller's failure to do this may
+     * leak internal state space or other internal resources and may eventually cause begin() to
+     * return ErrorCode::TOO_MANY_OPERATIONS when it runs out of space for operations.  Any result
+     * other than ErrorCode::OK from begin() will not return an IKeyMintOperation (in which case
+     * calling finish() or abort() is neither possible nor necessary). IKeyMintDevice
+     * implementations must support 32 concurrent operations.
      *
      * If Tag::APPLICATION_ID or Tag::APPLICATION_DATA were specified during key generation or
      * import, calls to begin must include those tags with the originally-specified values in the
-     * inParams argument to this method.  If not, begin() must return ErrorCode::INVALID_KEY_BLOB.
+     * params argument to this method.  If not, begin() must return ErrorCode::INVALID_KEY_BLOB.
      *
      * == Authorization Enforcement ==
      *
      * The following key authorization parameters must be enforced by the IKeyMintDevice secure
      * environment if the tags were returned in the "hardwareEnforced" list in the
-     * KeyCharacteristics.  Public key operations, meaning KeyPurpose::ENCRYPT and
-     * KeyPurpose::VERIFY must be allowed to succeed even if authorization requirements are not met.
+     * KeyCharacteristics.
      *
      * -- All Key Types --
      *
@@ -573,9 +576,9 @@
      *
      * o Tag::USER_SECURE_ID must be enforced by this method if and only if the key also has
      *   Tag::AUTH_TIMEOUT (if it does not have Tag::AUTH_TIMEOUT, the Tag::USER_SECURE_ID
-     *   requirement must be enforced by update() and finish()).  If the key has both, then this
-     *   method must receive a non-empty HardwareAuthToken in the authToken argument.  For the auth
-     *   token to be valid, all of the following have to be true:
+     *   requirement must be enforced by updateAad(), update() and finish()).  If the key has both,
+     *   then this method must receive a non-empty HardwareAuthToken in the authToken argument.  For
+     *   the auth token to be valid, all of the following have to be true:
      *
      *   o The HMAC field must validate correctly.
      *
@@ -602,32 +605,30 @@
      *
      * -- RSA Keys --
      *
-     * All RSA key operations must specify exactly one padding mode in inParams.  If unspecified or
+     * All RSA key operations must specify exactly one padding mode in params.  If unspecified or
      * specified more than once, the begin() must return ErrorCode::UNSUPPORTED_PADDING_MODE.
      *
-     * RSA signing and verification operations need a digest, as do RSA encryption and decryption
-     * operations with OAEP padding mode.  For those cases, the caller must specify exactly one
-     * digest in inParams.  If unspecified or specified more than once, begin() must return
+     * RSA signing operations need a digest, as do RSA encryption and decryption operations with
+     * OAEP padding mode.  For those cases, the caller must specify exactly one digest in params.
+     * If unspecified or specified more than once, begin() must return
      * ErrorCode::UNSUPPORTED_DIGEST.
      *
      * Private key operations (KeyPurpose::DECRYPT and KeyPurpose::SIGN) need authorization of
      * digest and padding, which means that the key authorizations need to contain the specified
      * values.  If not, begin() must return ErrorCode::INCOMPATIBLE_DIGEST or
-     * ErrorCode::INCOMPATIBLE_PADDING, as appropriate.  Public key operations (KeyPurpose::ENCRYPT
-     * and KeyPurpose::VERIFY) are permitted with unauthorized digest or padding modes.
+     * ErrorCode::INCOMPATIBLE_PADDING_MODE, as appropriate.
      *
      * With the exception of PaddingMode::NONE, all RSA padding modes are applicable only to certain
      * purposes.  Specifically, PaddingMode::RSA_PKCS1_1_5_SIGN and PaddingMode::RSA_PSS only
-     * support signing and verification, while PaddingMode::RSA_PKCS1_1_5_ENCRYPT and
-     * PaddingMode::RSA_OAEP only support encryption and decryption.  begin() must return
-     * ErrorCode::UNSUPPORTED_PADDING_MODE if the specified mode does not support the specified
-     * purpose.
+     * support signing, while PaddingMode::RSA_PKCS1_1_5_ENCRYPT and PaddingMode::RSA_OAEP only
+     * support encryption and decryption.  begin() must return ErrorCode::UNSUPPORTED_PADDING_MODE
+     * if the specified mode does not support the specified purpose.
      *
      * There are some important interactions between padding modes and digests:
      *
-     * o PaddingMode::NONE indicates that a "raw" RSA operation is performed.  If signing or
-     *   verifying, Digest::NONE is specified for the digest.  No digest is necessary for unpadded
-     *   encryption or decryption.
+     * o PaddingMode::NONE indicates that a "raw" RSA operation is performed.  If signing,
+     *   Digest::NONE is specified for the digest.  No digest is necessary for unpadded encryption
+     *   or decryption.
      *
      * o PaddingMode::RSA_PKCS1_1_5_SIGN padding requires a digest.  The digest may be Digest::NONE,
      *   in which case the KeyMint implementation cannot build a proper PKCS#1 v1.5 signature
@@ -639,37 +640,37 @@
      *
      * o PaddingMode::RSA_PKCS1_1_1_5_ENCRYPT padding does not require a digest.
      *
-     * o PaddingMode::RSA_PSS padding requires a digest, which may not be Digest::NONE.  If
-     *   Digest::NONE is specified, the begin() must return ErrorCode::INCOMPATIBLE_DIGEST.  In
-     *   addition, the size of the RSA key must be at least 2 + D bytes larger than the output size
-     *   of the digest, where D is the size of the digest, in bytes.  Otherwise begin() must
-     *   return ErrorCode::INCOMPATIBLE_DIGEST.  The salt size must be D.
+     * o PaddingMode::RSA_PSS padding requires a digest, which must match one of the padding values
+     *   in the key authorizations, and which may not be Digest::NONE.  begin() must return
+     *   ErrorCode::INCOMPATIBLE_DIGEST if this is not the case.  In addition, the size of the RSA
+     *   key must be at least 2 + D bytes larger than the output size of the digest, where D is the
+     *   size of the digest, in bytes.  Otherwise begin() must return
+     *   ErrorCode::INCOMPATIBLE_DIGEST.  The salt size must be D.
      *
-     * o PaddingMode::RSA_OAEP padding requires a digest, which may not be Digest::NONE.  If
-     *   Digest::NONE is specified, begin() must return ErrorCode::INCOMPATIBLE_DIGEST.  The OAEP
-     *   mask generation function must be MGF1 and the MGF1 digest must be SHA1, regardless of the
-     *   OAEP digest specified.
+     * o PaddingMode::RSA_OAEP padding requires a digest, which must match one of the padding values
+     *   in the key authorizations, and which may not be Digest::NONE.  begin() must return
+     *   ErrorCode::INCOMPATIBLE_DIGEST if this is not the case.  RSA_OAEP padding also requires an
+     *   MGF1 digest, specified with Tag::RSA_OAEP_MGF_DIGEST, which must match one of the MGF1
+     *   padding values in the key authorizations and which may not be Digest::NONE.  begin() must
+     *   return ErrorCode::INCOMPATIBLE_MGF_DIGEST if this is not the case. The OAEP mask generation
+     *   function must be MGF1.
      *
      * -- EC Keys --
      *
-     * EC key operations must specify exactly one padding mode in inParams.  If unspecified or
-     * specified more than once, begin() must return ErrorCode::UNSUPPORTED_PADDING_MODE.
-     *
      * Private key operations (KeyPurpose::SIGN) need authorization of digest and padding, which
      * means that the key authorizations must contain the specified values.  If not, begin() must
-     * return ErrorCode::INCOMPATIBLE_DIGEST.  Public key operations (KeyPurpose::VERIFY) are
-     * permitted with unauthorized digest or padding.
+     * return ErrorCode::INCOMPATIBLE_DIGEST.
      *
      * -- AES Keys --
      *
      * AES key operations must specify exactly one block mode (Tag::BLOCK_MODE) and one padding mode
-     * (Tag::PADDING) in inParams.  If either value is unspecified or specified more than once,
+     * (Tag::PADDING) in params.  If either value is unspecified or specified more than once,
      * begin() must return ErrorCode::UNSUPPORTED_BLOCK_MODE or
      * ErrorCode::UNSUPPORTED_PADDING_MODE.  The specified modes must be authorized by the key,
      * otherwise begin() must return ErrorCode::INCOMPATIBLE_BLOCK_MODE or
      * ErrorCode::INCOMPATIBLE_PADDING_MODE.
      *
-     * If the block mode is BlockMode::GCM, inParams must specify Tag::MAC_LENGTH, and the specified
+     * If the block mode is BlockMode::GCM, params must specify Tag::MAC_LENGTH, and the specified
      * value must be a multiple of 8 that is not greater than 128 or less than the value of
      * Tag::MIN_MAC_LENGTH in the key authorizations.  For MAC lengths greater than 128 or
      * non-multiples of 8, begin() must return ErrorCode::UNSUPPORTED_MAC_LENGTH.  For values less
@@ -682,48 +683,66 @@
      *
      * If the block mode is BlockMode::CBC, BlockMode::CTR, or BlockMode::GCM, an initialization
      * vector or nonce is required.  In most cases, callers shouldn't provide an IV or nonce and the
-     * IKeyMintDevice implementation must generate a random IV or nonce and return it via
-     * Tag::NONCE in outParams.  CBC and CTR IVs are 16 bytes.  GCM nonces are 12 bytes.  If the key
+     * IKeyMintDevice implementation must generate a random IV or nonce and return it via Tag::NONCE
+     * in outParams.  CBC and CTR IVs are 16 bytes.  GCM nonces are 12 bytes.  If the key
      * authorizations contain Tag::CALLER_NONCE, then the caller may provide an IV/nonce with
-     * Tag::NONCE in inParams.  If a nonce is provided when Tag::CALLER_NONCE is not authorized,
+     * Tag::NONCE in params, which must be of the correct size (if not, return
+     * ErrorCode::INVALID_NONCE).  If a nonce is provided when Tag::CALLER_NONCE is not authorized,
      * begin() must return ErrorCode::CALLER_NONCE_PROHIBITED.  If a nonce is not provided when
-     * Tag::CALLER_NONCE is authorized, IKeyMintDevice msut generate a random IV/nonce.
+     * Tag::CALLER_NONCE is authorized, IKeyMintDevice must generate a random IV/nonce.
+     *
+     * -- 3DES Keys --
+     *
+     * 3DES key operations must specify exactly one block mode (Tag::BLOCK_MODE) and one padding
+     * mode (Tag::PADDING) in params.  If either value is unspecified or specified more than once,
+     * begin() must return ErrorCode::UNSUPPORTED_BLOCK_MODE or
+     * ErrorCode::UNSUPPORTED_PADDING_MODE.  The specified modes must be authorized by the key,
+     * otherwise begin() must return ErrorCode::INCOMPATIBLE_BLOCK_MODE or
+     * ErrorCode::INCOMPATIBLE_PADDING_MODE.
+     *
+     * If the block mode is BlockMode::CBC, an initialization vector or nonce is required.  In most
+     * cases, callers shouldn't provide an IV or nonce and the IKeyMintDevice implementation must
+     * generate a random IV or nonce and return it via Tag::NONCE in outParams.  CBC IVs are 8
+     * bytes.  If the key authorizations contain Tag::CALLER_NONCE, then the caller may provide an
+     * IV/nonce with Tag::NONCE in params, which must be of the correct size (if not, return
+     * ErrorCode::INVALID_NONCE).  If a nonce is provided when Tag::CALLER_NONCE is not authorized,
+     * begin() must return ErrorCode::CALLER_NONCE_PROHIBITED.  If a nonce is not provided when
+     * Tag::CALLER_NONCE is authorized, IKeyMintDevice must generate a random IV/nonce.
+     *
      *
      * -- HMAC keys --
      *
-     * HMAC key operations must specify Tag::MAC_LENGTH in inParams.  The specified value must be a
+     * HMAC key operations must specify Tag::MAC_LENGTH in params.  The specified value must be a
      * multiple of 8 that is not greater than the digest length or less than the value of
      * Tag::MIN_MAC_LENGTH in the key authorizations.  For MAC lengths greater than the digest
      * length or non-multiples of 8, begin() must return ErrorCode::UNSUPPORTED_MAC_LENGTH.  For
      * values less than the key's minimum length, begin() must return ErrorCode::INVALID_MAC_LENGTH.
      *
-     * @param inPurpose The purpose of the operation, one of KeyPurpose::ENCRYPT,
-     *        KeyPurpose::DECRYPT, KeyPurpose::SIGN, KeyPurpose::VERIFY, or KeyPurpose::AGREE_KEY.
-     *        Note that for AEAD modes, encryption and decryption imply signing and verification,
-     *        respectively, but must be specified as KeyPurpose::ENCRYPT and KeyPurpose::DECRYPT.
+     * @param purpose The purpose of the operation, one of KeyPurpose::ENCRYPT, KeyPurpose::DECRYPT,
+     *        KeyPurpose::SIGN, KeyPurpose::VERIFY, or KeyPurpose::AGREE_KEY.  Note that for AEAD
+     *        modes, encryption and decryption imply signing and verification, respectively, but
+     *        must be specified as KeyPurpose::ENCRYPT and KeyPurpose::DECRYPT.
      *
-     * @param inKeyBlob The opaque key descriptor returned by generateKey() or importKey().  The key
+     * @param keyBlob The opaque key descriptor returned by generateKey() or importKey().  The key
      *        must have a purpose compatible with purpose and all of its usage requirements must be
      *        satisfied, or begin() must return an appropriate error code (see above).
      *
-     * @param inParams Additional parameters for the operation.  If Tag::APPLICATION_ID or
+     * @param params Additional parameters for the operation.  If Tag::APPLICATION_ID or
      *        Tag::APPLICATION_DATA were provided during generation, they must be provided here, or
      *        the operation must fail with ErrorCode::INVALID_KEY_BLOB.  For operations that require
-     *        a nonce or IV, on keys that were generated with Tag::CALLER_NONCE, inParams may
+     *        a nonce or IV, on keys that were generated with Tag::CALLER_NONCE, params may
      *        contain a tag Tag::NONCE.  If Tag::NONCE is provided for a key without
      *        Tag:CALLER_NONCE, ErrorCode::CALLER_NONCE_PROHIBITED must be returned.
      *
-     * @param inAuthToken Authentication token.  Callers that provide no token must set all numeric
-     *        fields to zero and the MAC must be an empty vector.  TODO: make this field nullable.
-     *        b/173483024.
+     * @param authToken Authentication token.
      *
      * @return BeginResult as output, which contains the challenge, KeyParameters which haves
      *         additional data from the operation initialization, notably to return the IV or nonce
      *         from operations that generate an IV or nonce, and IKeyMintOperation object pointer
-     *         which is used to perform update(), finish() or abort() operations.
+     *         which is used to perform updateAad(), update(), finish() or abort() operations.
      */
     BeginResult begin(in KeyPurpose purpose, in byte[] keyBlob, in KeyParameter[] params,
-            in HardwareAuthToken authToken);
+            in @nullable HardwareAuthToken authToken);
 
     /**
      * Called by client to notify the IKeyMintDevice that the device is now locked, and keys with
@@ -737,7 +756,7 @@
      * Note that the IKeyMintDevice UNLOCKED_DEVICE_REQUIRED semantics are slightly different from
      * the UNLOCKED_DEVICE_REQUIRED semantics enforced by keystore.  Keystore handles device locking
      * on a per-user basis.  Because auth tokens do not contain an Android user ID, it's not
-     * possible to replicate the keystore enformcement logic in IKeyMintDevice.  So from the
+     * possible to replicate the keystore enforcement logic in IKeyMintDevice.  So from the
      * IKeyMintDevice perspective, any user unlock unlocks all UNLOCKED_DEVICE_REQUIRED keys.
      * Keystore will continue enforcing the per-user device locking.
      *
@@ -783,18 +802,4 @@
      *         place of the input storageKeyBlob
      */
     byte[] convertStorageKeyToEphemeral(in byte[] storageKeyBlob);
-
-    /**
-     * Called by the client to perform a KeyMint operation.
-     *
-     *  This method is added primarily as a placeholder.  Details will be fleshed before the KeyMint
-     *  V1 interface is frozen.  Until then, implementations must return ErrorCode::UNIMPLEMENTED.
-     *
-     * @param request is an encrypted buffer containing a description of the operation the client
-     *        wishes to perform.  Structure, content and encryption are TBD.
-     *
-     * @return an encrypted buffer containing the result of the operation.  Structure, content and
-     *         encryption are TBD.
-     */
-    byte[] performOperation(in byte[] request);
 }
diff --git a/security/keymint/aidl/android/hardware/security/keymint/IKeyMintOperation.aidl b/security/keymint/aidl/android/hardware/security/keymint/IKeyMintOperation.aidl
index d2a993f..aa7b492 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/IKeyMintOperation.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/IKeyMintOperation.aidl
@@ -31,12 +31,12 @@
      * update() is called.  If updateAad() is called after update(), it must return
      * ErrorCode::INVALID_TAG.
      *
-     * If operation is in an invalid state (was aborted or had an error) update() must return
+     * If the operation is in an invalid state (was aborted or had an error) update() must return
      * ErrorCode::INVALID_OPERATION_HANDLE.
      *
      * If this method returns an error code other than ErrorCode::OK, the operation is aborted and
-     * the operation handle must be invalidated.  Any future use of the handle, with this method,
-     * finish, or abort, must return ErrorCode::INVALID_OPERATION_HANDLE.
+     * the operation handle must be invalidated.  Any future use of this object must return
+     * ErrorCode::INVALID_OPERATION_HANDLE.
      *
      * == Authorization Enforcement ==
      *
@@ -58,9 +58,10 @@
      *
      *   o The key must have a Tag::USER_AUTH_TYPE that matches the auth type in the token.
      *
-     *   o The challenge field in the auth token must contain the operationHandle
+     *   o The challenge field in the auth token must contain the value returned from
+     *     IKeyMintDevice::begin(), given by the challenge field of the BeginResult structure.
      *
-     *   If any of these conditions are not met, update() must return
+     *   If any of these conditions are not met, updateAad() must return
      *   ErrorCode::KEY_USER_NOT_AUTHENTICATED.
      *
      * The caller must provide the auth token on every call to updateAad(), update() and finish().
@@ -74,7 +75,7 @@
      *
      * @param input Additional Authentication Data to be processed.
      *
-     * @param authToken Authentication token. Can be nullable if not provided.
+     * @param authToken Authentication token, if provided.
      *
      * @param timeStampToken timestamp token, certifies the freshness of an auth token in case
      *        the security domain of this KeyMint instance has a different clock than the
@@ -93,18 +94,9 @@
      * If operation is in an invalid state (was aborted or had an error) update() must return
      * ErrorCode::INVALID_OPERATION_HANDLE.
      *
-     * To provide more flexibility for buffer handling, implementations of this method have the
-     * option of consuming less data than was provided.  The caller is responsible for looping to
-     * feed the rest of the data in subsequent calls.  The amount of input consumed must be returned
-     * in the inputConsumed parameter.  Implementations must always consume at least one byte,
-     * unless the operation cannot accept any more; if more than zero bytes are provided and zero
-     * bytes are consumed, callers must consider this an error and abort the operation.
-     * TODO(seleneh) update the code to always consume alll the input data. b/168665179.
-     *
-     * Implementations may also choose how much data to return, as a result of the update.  This is
-     * only relevant for encryption and decryption operations, because signing and verification
-     * return no data until finish.  It is recommended to return data as early as possible, rather
-     * than buffer it.
+     * Implementations may choose how much data to return as a result of the update.  This is
+     * only relevant for encryption and decryption operations, because signing returns no data
+     * until finish.  It is recommended to return data as early as possible, rather than buffer it.
      *
      * If this method returns an error code other than ErrorCode::OK, the operation is aborted and
      * the operation handle must be invalidated.  Any future use of the handle, with this method,
@@ -112,8 +104,8 @@
      *
      * == Authorization Enforcement ==
      *
-     * Key authorization enforcement is performed primarily in begin().  The one exception is the
-     * case where the key has:
+     * Key authorization enforcement is performed primarily in IKeyMintDevice::begin().  The one
+     * exception is the case where the key has:
      *
      * o One or more Tag::USER_SECURE_IDs, and
      *
@@ -130,7 +122,8 @@
      *
      *   o The key must have a Tag::USER_AUTH_TYPE that matches the auth type in the token.
      *
-     *   o The challenge field in the auth token must contain the operationHandle
+     *   o The challenge field in the auth token must contain the challenge value contained in the
+     *     BeginResult returned from IKeyMintDevice::begin().
      *
      *   If any of these conditions are not met, update() must return
      *   ErrorCode::KEY_USER_NOT_AUTHENTICATED.
@@ -139,22 +132,20 @@
      *
      * -- RSA keys --
      *
-     * For signing and verification operations with Digest::NONE, this method must accept the entire
-     * block to be signed or verified in a single update.  It may not consume only a portion of the
-     * block in these cases.  However, the caller may choose to provide the data in multiple
-     * updates, and update() must accept the data this way as well.  If the caller provides more
-     * data to sign than can be used (length of data exceeds RSA key size), update() must return
-     * ErrorCode::INVALID_INPUT_LENGTH.
+     * For signing operations with Digest::NONE, this method must accept the entire block to be
+     * signed in a single update.  It may not consume only a portion of the block in these cases.
+     * However, the caller may choose to provide the data in multiple updates, and update() must
+     * accept the data this way as well.  If the caller provides more data to sign than can be used
+     * (length of data exceeds RSA key size), update() must return ErrorCode::INVALID_INPUT_LENGTH.
      *
      * -- ECDSA keys --
      *
-     * For signing and verification operations with Digest::NONE, this method must accept the entire
-     * block to be signed or verified in a single update.  This method may not consume only a
-     * portion of the block.  However, the caller may choose to provide the data in multiple updates
-     * and update() must accept the data this way as well.  If the caller provides more data to sign
-     * than can be used, the data is silently truncated.  (This differs from the handling of excess
-     * data provided in similar RSA operations.  The reason for this is compatibility with legacy
-     * clients.)
+     * For signing operations with Digest::NONE, this method must accept the entire block to be
+     * signed in a single update.  This method may not consume only a portion of the block.
+     * However, the caller may choose to provide the data in multiple updates and update() must
+     * accept the data this way as well.  If the caller provides more data to sign than can be used,
+     * the data is silently truncated.  (This differs from the handling of excess data provided in
+     * similar RSA operations.  The reason for this is compatibility with legacy clients.)
      *
      * -- AES keys --
      *
@@ -182,7 +173,7 @@
             in @nullable TimeStampToken timeStampToken);
 
     /**
-     * Finalizes a cryptographic operation begun with begin() and invalidates operation.
+     * Finalizes a cryptographic operation begun with begin() and invalidates the operation.
      *
      * This method is the last one called in an operation, so all processed data must be returned.
      *
@@ -190,8 +181,7 @@
      * Any future use of the operation, with finish(), update(), or abort(), must return
      * ErrorCode::INVALID_OPERATION_HANDLE.
      *
-     * Signing operations return the signature as the output.  Verification operations accept the
-     * signature in the signature parameter, and return no output.
+     * Signing operations return the signature as the output.
      *
      * == Authorization enforcement ==
      *
@@ -230,44 +220,35 @@
      * Some additional requirements, depending on the padding mode:
      *
      * o PaddingMode::NONE.  For unpadded signing and encryption operations, if the provided data is
-     *   shorter than the key, the data must be zero-padded on the left before
-     *   signing/encryption.  If the data is the same length as the key, but numerically larger,
-     *   finish() must return ErrorCode::INVALID_ARGUMENT.  For verification and decryption
-     *   operations, the data must be exactly as long as the key.  Otherwise, return
-     *   ErrorCode::INVALID_INPUT_LENGTH.
+     *   shorter than the key, the data must be zero-padded on the left before signing/encryption.
+     *   If the data is the same length as the key, but numerically larger, finish() must return
+     *   ErrorCode::INVALID_ARGUMENT.  For decryption operations, the data must be exactly as long
+     *   as the key.  Otherwise, return ErrorCode::INVALID_INPUT_LENGTH.
      *
      * o PaddingMode::RSA_PSS.  For PSS-padded signature operations, the PSS salt length must match
-     *   the size of the PSS digest selected.  The digest specified with Tag::DIGEST in inputParams
+     *   the size of the PSS digest selected.  The digest specified with Tag::DIGEST in params
      *   on begin() must be used as the PSS digest algorithm, MGF1 must be used as the mask
      *   generation function and SHA1 must be used as the MGF1 digest algorithm.
      *
-     * o PaddingMode::RSA_OAEP.  The digest specified with Tag::DIGEST in inputParams on begin is
-     *   used as the OAEP digest algorithm, MGF1 must be used as the mask generation function and
-     *   and SHA1 must be used as the MGF1 digest algorithm.
-     *
      * -- ECDSA keys --
      *
-     * If the data provided for unpadded signing or verification is too long, truncate it.
+     * If the data provided for undigested signing is too long, truncate it.
      *
      * -- AES keys --
      *
      * Some additional conditions, depending on block mode:
      *
      * o BlockMode::ECB or BlockMode::CBC.  If padding is PaddingMode::NONE and the data length is
-     *  not a multiple of the AES block size, finish() must return
-     *  ErrorCode::INVALID_INPUT_LENGTH.  If padding is PaddingMode::PKCS7, pad the data per the
-     *  PKCS#7 specification, including adding an additional padding block if the data is a multiple
-     *  of the block length.
+     *   not a multiple of the AES block size, finish() must return
+     *   ErrorCode::INVALID_INPUT_LENGTH.  If padding is PaddingMode::PKCS7, pad the data per the
+     *   PKCS#7 specification, including adding an additional padding block if the data is a
+     *   multiple of the block length.
      *
      * o BlockMode::GCM.  During encryption, after processing all plaintext, compute the tag
      *   (Tag::MAC_LENGTH bytes) and append it to the returned ciphertext.  During decryption,
      *   process the last Tag::MAC_LENGTH bytes as the tag.  If tag verification fails, finish()
      *   must return ErrorCode::VERIFICATION_FAILED.
      *
-     * TODO: update() will need to be refactored into 2 function. b/168665179.
-     *
-     * @param inParams Additional parameters for the operation.
-     *
      * @param input Data to be processed, per the parameters established in the call to begin().
      *        finish() must consume all provided data or return ErrorCode::INVALID_INPUT_LENGTH.
      *
@@ -281,11 +262,9 @@
      *        token.
      *
      * @param confirmationToken is the confirmation token required by keys with
-     * Tag::TRUSTED_CONFIRMATION_REQUIRED.
+     *        Tag::TRUSTED_CONFIRMATION_REQUIRED.
      *
      * @return The output data, if any.
-     *
-     * @return outParams Any output parameters generated by finish().
      */
     byte[] finish(in @nullable byte[] input, in @nullable byte[] signature,
             in @nullable HardwareAuthToken authToken,
@@ -293,13 +272,10 @@
             in @nullable byte[] confirmationToken);
 
     /**
-     * Aborts a cryptographic operation begun with begin(), freeing all internal resources. If an
-     * operation was finalized, calling update, finish, or abort yields
-     * ErrorCode::INVALID_OPERATION_HANDLE. An operation is finalized if finish or abort was
-     * called on it, or if update returned an ErrorCode.
-     *
-     * @param operationHandle The operation handle returned by begin().  This handle must be
-     *        invalid when abort() returns.
+     * Aborts a cryptographic operation begun with IKeyMintDevice::begin(), freeing all internal
+     * resources.  If an operation was finalized, calling updateAad, update, finish, or abort yields
+     * ErrorCode::INVALID_OPERATION_HANDLE. An operation is finalized if finish or abort was called
+     * on it, or if updateAad or update returned an ErrorCode.
      *
      * @return error See the ErrorCode enum in ErrorCode.aidl.
      */
diff --git a/security/keymint/aidl/android/hardware/security/keymint/IRemotelyProvisionedComponent.aidl b/security/keymint/aidl/android/hardware/security/keymint/IRemotelyProvisionedComponent.aidl
index 1ae6762..04d91d0 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/IRemotelyProvisionedComponent.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/IRemotelyProvisionedComponent.aidl
@@ -19,6 +19,7 @@
 import android.hardware.security.keymint.DeviceInfo;
 import android.hardware.security.keymint.MacedPublicKey;
 import android.hardware.security.keymint.ProtectedData;
+import android.hardware.security.keymint.RpcHardwareInfo;
 
 /**
  * An IRemotelyProvisionedComponent is a secure-side component for which certificates can be
@@ -77,7 +78,7 @@
  * While a proper BCC, as described above, reflects the complete boot sequence from boot ROM to the
  * secure area image of the IRemotelyProvisionedComponent, it's also possible to use a "degenerate"
  * BCC which consists only of a single, self-signed certificate containing the public key of a
- * hardware-bound key pair. This is an appopriate solution for devices which haven't implemented
+ * hardware-bound key pair. This is an appropriate solution for devices which haven't implemented
  * everything necessary to produce a proper BCC, but can derive a unique key pair in the secure
  * area.  In this degenerate case, DK_pub is the same as KM_pub.
  *
@@ -121,6 +122,12 @@
     const int STATUS_INVALID_EEK = 5;
 
     /**
+     * @return info which contains information about the underlying IRemotelyProvisionedComponent
+     *         hardware, such as version number, component name, author name, and supported curve.
+     */
+    RpcHardwareInfo getHardwareInfo();
+
+    /**
      * generateKeyPair generates a new ECDSA P-256 key pair that can be certified.  Note that this
      * method only generates ECDSA P-256 key pairs, but the interface can be extended to add methods
      * for generating keys for other algorithms, if necessary.
diff --git a/security/keymint/aidl/android/hardware/security/keymint/KeyCreationResult.aidl b/security/keymint/aidl/android/hardware/security/keymint/KeyCreationResult.aidl
index f3c5477..f93dbba 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/KeyCreationResult.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/KeyCreationResult.aidl
@@ -58,31 +58,143 @@
      * There are a few variations in what is contained in `certificateChain`, depending on whether
      * the caller requested attestation, whether they provided an attestation key (via the
      * `attestationKey` parameter of `generateKey()`, `importKey()` or `importWrappedKey()`), and in
-     * the non-attestaion case, whether the key can self-sign.
+     * the non-attestation case, whether the key can self-sign.
      *
-     * 1.  Attestation with factory key.  If Tag::ATTESTATION_CHALLENGE is provided and the
-     *     `attestationKey` parameter on the generate/import call is null, the returned certificate
-     *     chain must contain an attestation certificate signed with a factory-provisioned
-     *     attestation key, and the full certificate chain for that factory-provisioned attestation
-     *     key.
+     * 1.  Asymmetric key attestation with factory key.  If Tag::ATTESTATION_CHALLENGE is provided
+     *     and the `attestationKey` parameter on the generate/import call is null, the returned
+     *     certificate chain must contain an attestation certificate signed with a factory-
+     *     provisioned attestation key, and the full certificate chain for that factory-provisioned
+     *     attestation key.  Tag::ATTESTATION_APPLICATION_ID must also be provided when the
+     *     ATTESTATION_CHALLENGE is provided, otherwise ATTESTATION_APPLICATION_ID_MISSING will be
+     *     returned.  KeyMint implementations are not required to support factory-provisioned
+     *     attestation keys.
      *
-     * 2.  Attestation with caller-provided key.  If Tag::ATTESTATION_CHALLENGE is provided and the
-     *     `attestationKey` parameter on the generat/import call is non-null and contains the key
-     *     blob of a key with KeyPurpose::ATTEST_KEY, the returned certificate chain must contain
-     *     only an attestation certificate signed with the specified key.  The caller must know the
-     *     certificate chain for the provided key.
+     * 2.  Asymmetric key attestation with caller-provided key.  If Tag::ATTESTATION_CHALLENGE is
+     *     provided and the `attestationKey` parameter on the generate/import call is non-null and
+     *     contains the key blob of a key with KeyPurpose::ATTEST_KEY, the returned certificate
+     *     chain must contain only an attestation certificate signed with the specified key.  The
+     *     caller must know the certificate chain for the provided key.  Tag::
+     *     ATTESTATION_APPLICATION_ID must also be provided when the ATTESTATION_CHALLENGE is
+     *     provided, otherwise ATTESTATION_APPLICATION_ID_MISSING will be returned.
      *
-     * 3.  Non-attestation with signing key.  If Tag::ATTESTATION_CHALLENGE is not provided and the
-     *     generated/imported key has KeyPurpose::SIGN, then the returned certificate chain must
-     *     contain only a single self-signed certificate with no attestation extension.
+     * 3.  Asymmetric key non-attestation with signing key.  If Tag::ATTESTATION_CHALLENGE is not
+     *     provided and the generated/imported key has KeyPurpose::SIGN, then the returned
+     *     certificate chain must contain only a single self-signed certificate with no attestation
+     *     extension.  Tag::ATTESTATION_APPLICATION_ID will be ignored if provided.
      *
-     * 4.  Non-attestation with non-signing key.  If TAG::ATTESTATION_CHALLENGE is not provided and
-     *     the generated/imported key does not have KeyPurpose::SIGN, then the returned certificate
-     *     chain must contain only a single certificate with an empty signature and no attestation
-     *     extension.
+     * 4.  Asymmetric key non-attestation with non-signing key.  If TAG::ATTESTATION_CHALLENGE is
+     *     not provided and the generated/imported key does not have KeyPurpose::SIGN, then the
+     *     returned certificate chain must contain only a single certificate with an empty signature
+     *     and no attestation extension.  Tag::ATTESTATION_APPLICATION_ID will be ignored if
+     *     provided.
      *
-     * 5.  Symmetric key.  If the generated/imported key is symmetric, the certificate chain must be
-     *     empty.
+     * 5.  Symmetric key.  If the generated/imported key is symmetric, the certificate chain must
+     *     return empty, any Tag::ATTESTATION_CHALLENGE or Tag::ATTESTATION_APPLICATION_ID inputs,
+     *     if provided, are ignored.
+     *
+     * In all cases except the symmetric key, the contents of certificate chain must be DER-encoded
+     * X.509 certificates ordered such that each certificate is signed by the subsequent one, up to
+     * the root which must be self-signed (or contain a fake signature in the case of case 4 above).
+     * The first certificate in the chain signs the public key info of the newly-generated or
+     * newly-imported key pair.  In the attestation cases (1 and 2 above), the first certificate
+     * must also satisfy some other requirements:
+     *
+     * o It must have the serial number provided in Tag::CERTIFICATE_SERIAL, or default to 1 if the
+     *   tag is not provided.
+     *
+     * o It must have the subject provided in Tag::CERTIFICATE_SUBJECT, or default to CN="Android
+     *   Keystore Key", if the tag is not provided.
+     *
+     * o It must contain the notBefore and notAfter date-times specified in
+     *   Tag::CERTIFICATE_NOT_BEFORE and Tag::CERTIFICATE_NOT_AFTER, respectively.
+     *
+     * o It must contain a Key Usage extension with:
+     *
+     *    - the digitalSignature bit set iff the attested key has KeyPurpose::SIGN,
+     *    - the dataEncipherment bit set iff the attested key has KeyPurpose::DECRYPT,
+     *    - the keyEncipherment bit set iff the attested key has KeyPurpose::WRAP_KEY,
+     *    - the keyAgreement bit set iff the attested key has KeyPurpose::AGREE_KEY, and
+     *    - the keyCertSignBit set iff the attested key has KeyPurpose::ATTEST_KEY.
+     *
+     * o it must contain a KeyDescription attestation extension with OID 1.3.6.1.4.1.11129.2.1.17.
+     *
+     * The KeyDescription content is defined by the following ASN.1 schema, which is mostly a
+     * straightforward translation of the KeyMint tag/value parameter lists to ASN.1.
+     *
+     * KeyDescription ::= SEQUENCE {
+     *     attestationVersion         INTEGER, # Value 100
+     *     attestationSecurityLevel   SecurityLevel, # See below
+     *     keyMintVersion             INTEGER, # Value 100
+     *     keymintSecurityLevel       SecurityLevel, # See below
+     *     attestationChallenge       OCTET_STRING, # Tag::ATTESTATION_CHALLENGE from attestParams
+     *     uniqueId                   OCTET_STRING, # Empty unless key has Tag::INCLUDE_UNIQUE_ID
+     *     softwareEnforced           AuthorizationList, # See below
+     *     hardwareEnforced           AuthorizationList, # See below
+     * }
+     *
+     * SecurityLevel ::= ENUMERATED {
+     *     Software                   (0),
+     *     TrustedEnvironment         (1),
+     *     StrongBox                  (2),
+     * }
+     *
+     * RootOfTrust ::= SEQUENCE {
+     *     verifiedBootKey            OCTET_STRING,
+     *     deviceLocked               BOOLEAN,
+     *     verifiedBootState          VerifiedBootState,
+     *     # verifiedBootHash must contain 32-byte value that represents the state of all binaries
+     *     # or other components validated by verified boot.  Updating any verified binary or
+     *     # component must cause this value to change.
+     *     verifiedBootHash           OCTET_STRING,
+     * }
+     *
+     * VerifiedBootState ::= ENUMERATED {
+     *     Verified                   (0),
+     *     SelfSigned                 (1),
+     *     Unverified                 (2),
+     *     Failed                     (3),
+     * }
+     *
+     * AuthorizationList ::= SEQUENCE {
+     *     purpose                    [1] EXPLICIT SET OF INTEGER OPTIONAL,
+     *     algorithm                  [2] EXPLICIT INTEGER OPTIONAL,
+     *     keySize                    [3] EXPLICIT INTEGER OPTIONAL,
+     *     blockMode                  [4] EXPLICIT SET OF INTEGER OPTIONAL,
+     *     digest                     [5] EXPLICIT SET OF INTEGER OPTIONAL,
+     *     padding                    [6] EXPLICIT SET OF INTEGER OPTIONAL,
+     *     callerNonce                [7] EXPLICIT NULL OPTIONAL,
+     *     minMacLength               [8] EXPLICIT INTEGER OPTIONAL,
+     *     ecCurve                    [10] EXPLICIT INTEGER OPTIONAL,
+     *     rsaPublicExponent          [200] EXPLICIT INTEGER OPTIONAL,
+     *     rollbackResistance         [303] EXPLICIT NULL OPTIONAL,
+     *     activeDateTime             [400] EXPLICIT INTEGER OPTIONAL,
+     *     originationExpireDateTime  [401] EXPLICIT INTEGER OPTIONAL,
+     *     usageExpireDateTime        [402] EXPLICIT INTEGER OPTIONAL,
+     *     userSecureId               [502] EXPLICIT INTEGER OPTIONAL,
+     *     noAuthRequired             [503] EXPLICIT NULL OPTIONAL,
+     *     userAuthType               [504] EXPLICIT INTEGER OPTIONAL,
+     *     authTimeout                [505] EXPLICIT INTEGER OPTIONAL,
+     *     allowWhileOnBody           [506] EXPLICIT NULL OPTIONAL,
+     *     trustedUserPresenceReq     [507] EXPLICIT NULL OPTIONAL,
+     *     trustedConfirmationReq     [508] EXPLICIT NULL OPTIONAL,
+     *     unlockedDeviceReq          [509] EXPLICIT NULL OPTIONAL,
+     *     creationDateTime           [701] EXPLICIT INTEGER OPTIONAL,
+     *     origin                     [702] EXPLICIT INTEGER OPTIONAL,
+     *     rootOfTrust                [704] EXPLICIT RootOfTrust OPTIONAL,
+     *     osVersion                  [705] EXPLICIT INTEGER OPTIONAL,
+     *     osPatchLevel               [706] EXPLICIT INTEGER OPTIONAL,
+     *     attestationApplicationId   [709] EXPLICIT OCTET_STRING OPTIONAL,
+     *     attestationIdBrand         [710] EXPLICIT OCTET_STRING OPTIONAL,
+     *     attestationIdDevice        [711] EXPLICIT OCTET_STRING OPTIONAL,
+     *     attestationIdProduct       [712] EXPLICIT OCTET_STRING OPTIONAL,
+     *     attestationIdSerial        [713] EXPLICIT OCTET_STRING OPTIONAL,
+     *     attestationIdImei          [714] EXPLICIT OCTET_STRING OPTIONAL,
+     *     attestationIdMeid          [715] EXPLICIT OCTET_STRING OPTIONAL,
+     *     attestationIdManufacturer  [716] EXPLICIT OCTET_STRING OPTIONAL,
+     *     attestationIdModel         [717] EXPLICIT OCTET_STRING OPTIONAL,
+     *     vendorPatchLevel           [718] EXPLICIT INTEGER OPTIONAL,
+     *     bootPatchLevel             [719] EXPLICIT INTEGER OPTIONAL,
+     * }
      */
     Certificate[] certificateChain;
 }
diff --git a/security/keymint/aidl/android/hardware/security/keymint/KeyOrigin.aidl b/security/keymint/aidl/android/hardware/security/keymint/KeyOrigin.aidl
index f896125..5840c6b 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/KeyOrigin.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/KeyOrigin.aidl
@@ -20,7 +20,7 @@
  * The origin of a key (or pair), i.e. where it was generated.  Note that ORIGIN can be found in
  * either the hardware-enforced or software-enforced list for a key, indicating whether the key is
  * hardware or software-based.  Specifically, a key with GENERATED in the hardware-enforced list
- * must be guaranteed never to have existed outide the secure hardware.
+ * must be guaranteed never to have existed outside the secure hardware.
  * @hide
  */
 @VintfStability
diff --git a/security/keymint/aidl/android/hardware/security/keymint/KeyPurpose.aidl b/security/keymint/aidl/android/hardware/security/keymint/KeyPurpose.aidl
index c874fc3..e141e55 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/KeyPurpose.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/KeyPurpose.aidl
@@ -23,10 +23,10 @@
 @VintfStability
 @Backing(type="int")
 enum KeyPurpose {
-    /* Usable with RSA, EC and AES keys. */
+    /* Usable with RSA, 3DES and AES keys. */
     ENCRYPT = 0,
 
-    /* Usable with RSA, EC and AES keys. */
+    /* Usable with RSA, 3DES and AES keys. */
     DECRYPT = 1,
 
     /* Usable with RSA, EC and HMAC keys. */
@@ -36,6 +36,7 @@
     VERIFY = 3,
 
     /* 4 is reserved */
+
     /* Usable with wrapping keys. */
     WRAP_KEY = 5,
 
diff --git a/security/keymint/aidl/android/hardware/security/keymint/RpcHardwareInfo.aidl b/security/keymint/aidl/android/hardware/security/keymint/RpcHardwareInfo.aidl
new file mode 100644
index 0000000..d297f87
--- /dev/null
+++ b/security/keymint/aidl/android/hardware/security/keymint/RpcHardwareInfo.aidl
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.security.keymint;
+
+/**
+ * RpcHardwareInfo is the hardware information returned by calling RemotelyProvisionedComponent
+ * getHardwareInfo()
+ * @hide
+ */
+@VintfStability
+@RustDerive(Clone=true, Eq=true, PartialEq=true, Ord=true, PartialOrd=true, Hash=true)
+parcelable RpcHardwareInfo {
+    const int CURVE_NONE = 0;
+    const int CURVE_P256 = 1;
+    const int CURVE_25519 = 2;
+
+    /**
+     * Implementation version of the remotely provisioned component hardware.  The version number is
+     * implementation defined, and not necessarily globally meaningful.  The version is used to
+     * distinguish between different versions of a given implementation.
+     */
+    int versionNumber;
+
+    /**
+     * rpcAuthorName is the name of the author of the IRemotelyProvisionedComponent implementation
+     * (organization name, not individual). This name is implementation defined, so it can be used
+     * to distinguish between different implementations from the same author.
+     */
+    @utf8InCpp String rpcAuthorName;
+
+    /**
+     * supportedEekCurve returns an int representing which curve is supported for validating
+     * signatures over the Endpoint Encryption Key certificate chain and for using the corresponding
+     * signed encryption key in ECDH. Only one curve should be supported, with preference for 25519
+     * if it's available. These values are defined as constants above.
+     *
+     * CURVE_NONE is made the default to help ensure that an implementor doesn't accidentally forget
+     * to provide the correct information here, as the VTS tests will check to make certain that
+     * a passing implementation does not provide CURVE_NONE.
+     */
+    int supportedEekCurve = CURVE_NONE;
+}
diff --git a/security/keymint/aidl/android/hardware/security/keymint/Tag.aidl b/security/keymint/aidl/android/hardware/security/keymint/Tag.aidl
index cde1fc0..1e101ab 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/Tag.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/Tag.aidl
@@ -19,7 +19,7 @@
 import android.hardware.security.keymint.TagType;
 
 // TODO(seleneh) : note aidl currently does not support double nested enum definitions such as
-// ROOT_OF_TRUST = TagType:BYTES | 704.  So we are forced to write definations as
+// ROOT_OF_TRUST = TagType:BYTES | 704.  So we are forced to write definitions as
 // ROOT_OF_TRUST = (9 << 28) for now.  Will need to flip this back later when aidl support is added.
 
 /**
@@ -59,7 +59,7 @@
     ALGORITHM = (1 << 28) /* TagType:ENUM */ | 2,
 
     /**
-     * Tag::KEY_SIZE pecifies the size, in bits, of the key, measuring in the normal way for the
+     * Tag::KEY_SIZE specifies the size, in bits, of the key, measuring in the normal way for the
      * key's algorithm.  For example, for RSA keys, Tag::KEY_SIZE specifies the size of the public
      * modulus.  For AES keys it specifies the length of the secret key material.  For 3DES keys it
      * specifies the length of the key material, not counting parity bits (though parity bits must
@@ -75,9 +75,9 @@
      * is only relevant to AES and 3DES keys.  Possible values are defined by the BlockMode enum.
      *
      * This tag is repeatable for key generation/import.  For AES and 3DES operations the caller
-     * must specify a Tag::BLOCK_MODE in the additionalParams argument of begin().  If the mode is
-     * missing or the specified mode is not in the modes specified for the key during
-     * generation/import, the operation must fail with ErrorCode::INCOMPATIBLE_BLOCK_MODE.
+     * must specify a Tag::BLOCK_MODE in the params argument of begin().  If the mode is missing or
+     * the specified mode is not in the modes specified for the key during generation/import, the
+     * operation must fail with ErrorCode::INCOMPATIBLE_BLOCK_MODE.
      *
      * Must be hardware-enforced.
      */
@@ -89,9 +89,9 @@
      * values are defined by the Digest enum.
      *
      * This tag is repeatable for key generation/import.  For signing and verification operations,
-     * the caller must specify a digest in the additionalParams argument of begin().  If the digest
-     * is missing or the specified digest is not in the digests associated with the key, the
-     * operation must fail with ErrorCode::INCOMPATIBLE_DIGEST.
+     * the caller must specify a digest in the params argument of begin().  If the digest is missing
+     * or the specified digest is not in the digests associated with the key, the operation must
+     * fail with ErrorCode::INCOMPATIBLE_DIGEST.
      *
      * Must be hardware-enforced.
      */
@@ -145,7 +145,7 @@
      * This value is the minimum MAC length, in bits.  It must be a multiple of 8 bits.  For HMAC
      * keys, the value must be least 64 and no more than 512.  For GCM keys, the value must be at
      * least 96 and no more than 128.  If the provided value violates these requirements,
-     * generateKey() or importKey() must return ErrorCode::UNSUPPORTED_KEY_SIZE.
+     * generateKey() or importKey() must return ErrorCode::UNSUPPORTED_MIN_MAC_LENGTH.
      *
      * Must be hardware-enforced.
      */
@@ -154,9 +154,8 @@
     // Tag 9 reserved
 
     /**
-     * Tag::EC_CURVE specifies the elliptic curve.  EC key generation requests may have
-     * Tag:EC_CURVE, Tag::KEY_SIZE, or both.  If both are provided and the size and curve do not
-     * match, IKeyMintDevice must return ErrorCode::INVALID_ARGUMENT.
+     * Tag::EC_CURVE specifies the elliptic curve.  Possible values are defined in the EcCurve
+     * enumeration.
      *
      * Must be hardware-enforced.
      */
@@ -188,37 +187,19 @@
     INCLUDE_UNIQUE_ID = (7 << 28) /* TagType:BOOL */ | 202,
 
     /**
-     * Tag::RSA_OAEP_MGF_DIGEST specifies the MGF1 digest algorithms that may be used with
-     * RSA encryption/decryption with OAEP padding. If the key characteristics supports OAEP
-     * and this tag is absent then SHA1 digest is selected by default for MGF1.
+     * Tag::RSA_OAEP_MGF_DIGEST specifies the MGF1 digest algorithms that may be used with RSA
+     * encryption/decryption with OAEP padding.  Possible values are defined by the Digest enum.
      *
-     * This tag is repeatable for key generation/import.  If this tag is present in the key
-     * characteristics with one or more values from @4.0::Digest, then for RSA cipher
-     * operations with OAEP Padding, the caller must specify a digest in the additionalParams
-     * argument of begin operation. If this tag is missing or the specified digest is not in
-     * the digests associated with the key then begin operation must fail with
-     * ErrorCode::INCOMPATIBLE_MGF_DIGEST.
+     * This tag is repeatable for key generation/import.  RSA cipher operations with OAEP padding
+     * must specify an MGF1 digest in the params argument of begin(). If this tag is missing or the
+     * specified digest is not in the MGF1 digests associated with the key then begin operation must
+     * fail with ErrorCode::INCOMPATIBLE_MGF_DIGEST.
      *
      * Must be hardware-enforced.
      */
     RSA_OAEP_MGF_DIGEST = (2 << 28) /* TagType:ENUM_REP */ | 203,
 
-    /**
-     * TODO(seleneh) this tag needs to be deleted from all codes.
-     *
-     * Tag::BLOB_USAGE_REQUIREMENTS specifies the necessary system environment conditions for the
-     * generated key to be used.  Possible values are defined by the KeyBlobUsageRequirements enum.
-     *
-     * This tag is specified by the caller during key generation or import to require that the key
-     * is usable in the specified condition.  If the caller specifies Tag::BLOB_USAGE_REQUIREMENTS
-     * with value KeyBlobUsageRequirements::STANDALONE the IKeyMintDevice must return a key blob
-     * that can be used without file system support.  This is critical for devices with encrypted
-     * disks, where the file system may not be available until after a KeyMint key is used to
-     * decrypt the disk.
-     *
-     * Must be hardware-enforced.
-     */
-    BLOB_USAGE_REQUIREMENTS = (1 << 28) /* TagType:ENUM */ | 301,
+    // Tag 301 reserved
 
     /**
      * Tag::BOOTLOADER_ONLY specifies only the bootloader can use the key.
@@ -241,7 +222,7 @@
      * ErrorCode::ROLLBACK_RESISTANCE_UNAVAILABLE.  IKeyMintDevice implementations are not
      * required to support rollback resistance.
      *
-     * Must be hardwared-enforced.
+     * Must be hardware-enforced.
      */
     ROLLBACK_RESISTANCE = (7 << 28) /* TagType:BOOL */ | 303,
 
@@ -251,7 +232,7 @@
     /**
      * Keys tagged with EARLY_BOOT_ONLY may only be used during early boot, until
      * IKeyMintDevice::earlyBootEnded() is called.  Early boot keys may be created after
-     * early boot.  Early boot keys may not be imprted at all, if Tag::EARLY_BOOT_ONLY is
+     * early boot.  Early boot keys may not be imported at all, if Tag::EARLY_BOOT_ONLY is
      * provided to IKeyMintDevice::importKey, the import must fail with
      * ErrorCode::INVALID_ARGUMENT.
      */
@@ -307,7 +288,7 @@
      * with ErrorCode::KEY_RATE_LIMIT_EXCEEDED.  This implies that the IKeyMintDevice must keep a
      * table of use counters for keys with this tag.  Because memory is often limited, this table
      * may have a fixed maximum size and KeyMint may fail operations that attempt to use keys with
-     * this tag when the table is full.  The table must acommodate at least 8 in-use keys and
+     * this tag when the table is full.  The table must accommodate at least 8 in-use keys and
      * aggressively reuse table slots when key minimum-usage intervals expire.  If an operation
      * fails because the table is full, KeyMint returns ErrorCode::TOO_MANY_OPERATIONS.
      *
@@ -327,7 +308,7 @@
      * device is restarted.  This implies that the IKeyMintDevice must keep a table of use
      * counters for keys with this tag.  Because KeyMint memory is often limited, this table can
      * have a fixed maximum size and KeyMint can fail operations that attempt to use keys with
-     * this tag when the table is full.  The table needs to acommodate at least 8 keys.  If an
+     * this tag when the table is full.  The table needs to accommodate at least 8 keys.  If an
      * operation fails because the table is full, IKeyMintDevice must
      * ErrorCode::TOO_MANY_OPERATIONS.
      *
@@ -386,14 +367,14 @@
      * key, and may only be used if the difference between the current time when begin() is called
      * and the timestamp in the HardwareAuthToken is less than the value in Tag::AUTH_TIMEOUT * 1000
      * (the multiplier is because Tag::AUTH_TIMEOUT is in seconds, but the HardwareAuthToken
-     * timestamp is in milliseconds).  Otherwise the IKeyMintDevice must returrn
+     * timestamp is in milliseconds).  Otherwise the IKeyMintDevice must return
      * ErrorCode::KEY_USER_NOT_AUTHENTICATED.
      *
      * If Tag::AUTH_TIMEOUT is not present, then the key is an "auth-per-operation" key.  In this
      * case, begin() must not require a HardwareAuthToken with appropriate contents.  Instead,
      * update() and finish() must receive a HardwareAuthToken with Tag::USER_SECURE_ID value in
      * userId or authenticatorId fields, and the current operation's operation handle in the
-     * challenge field.  Otherwise the IKeyMintDevice must returrn
+     * challenge field.  Otherwise the IKeyMintDevice must return
      * ErrorCode::KEY_USER_NOT_AUTHENTICATED.
      *
      * This tag is repeatable.  If repeated, and any one of the values matches the HardwareAuthToken
@@ -434,7 +415,7 @@
     /**
      * Tag::AUTH_TIMEOUT specifies the time in seconds for which the key is authorized for use,
      * after user authentication.  If
-     * Tag::USER_SECURE_ID is present and this tag is not, then the key requies authentication for
+     * Tag::USER_SECURE_ID is present and this tag is not, then the key requires authentication for
      * every usage (see begin() for the details of the authentication-per-operation flow).
      *
      * The value is a 32-bit integer specifying the time in seconds after a successful
@@ -504,7 +485,7 @@
      * Tag::TRUSTED_CONFIRMATION_REQUIRED is only applicable to keys with KeyPurpose SIGN, and
      *  specifies that this key must not be usable unless the user provides confirmation of the data
      *  to be signed.  Confirmation is proven to keyMint via an approval token.  See
-     *  CONFIRMATION_TOKEN, as well as the ConfirmatinUI HAL.
+     *  CONFIRMATION_TOKEN, as well as the ConfirmationUI HAL.
      *
      * If an attempt to use a key with this tag does not have a cryptographically valid
      * CONFIRMATION_TOKEN provided to finish() or if the data provided to update()/finish() does not
@@ -524,10 +505,10 @@
 
     /**
      * Tag::APPLICATION_ID.  When provided to generateKey or importKey, this tag specifies data
-     * that is necessary during all uses of the key.  In particular, calls to exportKey() and
-     * getKeyCharacteristics() must provide the same value to the clientId parameter, and calls to
-     * begin must provide this tag and the same associated data as part of the inParams set.  If
-     * the correct data is not provided, the method must return ErrorCode::INVALID_KEY_BLOB.
+     * that is necessary during all uses of the key.  In particular, calls to exportKey() must
+     * provide the same value to the clientId parameter, and calls to begin() must provide this
+     * tag and the same associated data as part of the inParams set.  If the correct data is not
+     * provided, the method must return ErrorCode::INVALID_KEY_BLOB.
      *
      * The content of this tag must be bound to the key cryptographically, meaning it must not be
      * possible for an adversary who has access to all of the secure world secrets but does not have
@@ -550,7 +531,7 @@
      * provide this tag and the same associated data as part of the inParams set.  If the correct
      * data is not provided, the method must return ErrorCode::INVALID_KEY_BLOB.
      *
-     * The content of this tag msut be bound to the key cryptographically, meaning it must not be
+     * The content of this tag must be bound to the key cryptographically, meaning it must not be
      * possible for an adversary who has access to all of the secure world secrets but does not have
      * access to the tag content to decrypt the key without brute-forcing the tag content, which
      * applications can prevent by specifying sufficiently high-entropy content.
@@ -561,10 +542,9 @@
 
     /**
      * Tag::CREATION_DATETIME specifies the date and time the key was created, in milliseconds since
-     * January 1, 1970.  This tag is optional and informational only.
+     * January 1, 1970.  This tag is optional and informational only, and not enforced by anything.
      *
-     * Tag::CREATED is informational only, and not enforced by anything.  Must be in the
-     * software-enforced list, if provided.
+     * Must be in the software-enforced list, if provided.
      */
     CREATION_DATETIME = (6 << 28) /* TagType:DATE */ | 701,
 
@@ -593,8 +573,8 @@
      * Tag::OS_VERSION specifies the system OS version with which the key may be used.  This tag is
      * never sent to the IKeyMintDevice, but is added to the hardware-enforced authorization list
      * by the TA.  Any attempt to use a key with a Tag::OS_VERSION value different from the
-     * currently-running OS version must cause begin(), getKeyCharacteristics() or exportKey() to
-     * return ErrorCode::KEY_REQUIRES_UPGRADE.  See upgradeKey() for details.
+     * currently-running OS version must cause begin() or exportKey() to return
+     * ErrorCode::KEY_REQUIRES_UPGRADE.  See upgradeKey() for details.
      *
      * The value of the tag is an integer of the form MMmmss, where MM is the major version number,
      * mm is the minor version number, and ss is the sub-minor version number.  For example, for a
@@ -616,9 +596,8 @@
      * Tag::OS_PATCHLEVEL specifies the system security patch level with which the key may be used.
      * This tag is never sent to the keyMint TA, but is added to the hardware-enforced
      * authorization list by the TA.  Any attempt to use a key with a Tag::OS_PATCHLEVEL value
-     * different from the currently-running system patchlevel must cause begin(),
-     * getKeyCharacteristics() or exportKey() to return ErrorCode::KEY_REQUIRES_UPGRADE.  See
-     * upgradeKey() for details.
+     * different from the currently-running system patchlevel must cause begin() or
+     * exportKey() to return ErrorCode::KEY_REQUIRES_UPGRADE.  See upgradeKey() for details.
      *
      * The value of the tag is an integer of the form YYYYMM, where YYYY is the four-digit year of
      * the last update and MM is the two-digit month of the last update.  For example, for a key
@@ -650,10 +629,11 @@
      *      Tag::CREATION_DATETIME by 2592000000, dropping any remainder.  T changes every 30 days
      *      (2592000000 = 30 * 24 * 60 * 60 * 1000).
      *
-     *    C is the value of Tag::ATTESTATION_APPLICATION_ID that is provided to attestKey().
+     *    C is the value of Tag::ATTESTATION_APPLICATION_ID that is provided to attested key
+     *      generation/import operations.
      *
-     *    R is 1 if Tag::RESET_SINCE_ID_ROTATION was provided to attestKey or 0 if the tag was not
-     *      provided.
+     *    R is 1 if Tag::RESET_SINCE_ID_ROTATION was provided to attested key generation/import or 0
+     *      if the tag was not provided.
      *
      *    HBK is a unique hardware-bound secret known to the secure environment and never revealed
      *    by it.  The secret must contain at least 128 bits of entropy and be unique to the
@@ -668,9 +648,9 @@
     UNIQUE_ID = (9 << 28) /* TagType:BYTES */ | 707,
 
     /**
-     * Tag::ATTESTATION_CHALLENGE is used to deliver a "challenge" value to the attestKey() method,
-     * which must place the value in the KeyDescription SEQUENCE of the attestation extension.  See
-     * attestKey().
+     * Tag::ATTESTATION_CHALLENGE is used to deliver a "challenge" value to the attested key
+     * generation/import methods, which must place the value in the KeyDescription SEQUENCE of the
+     * attestation extension.
      *
      * Must never appear in KeyCharacteristics.
      */
@@ -678,7 +658,7 @@
 
     /**
      * Tag::ATTESTATION_APPLICATION_ID identifies the set of applications which may use a key, used
-     * only with attestKey().
+     * only with attested key generation/import operations.
      *
      * The content of Tag::ATTESTATION_APPLICATION_ID is a DER-encoded ASN.1 structure, with the
      * following schema:
@@ -704,8 +684,8 @@
 
     /**
      * Tag::ATTESTATION_ID_BRAND provides the device's brand name, as returned by Build.BRAND in
-     * Android, to attestKey().  This field must be set only when requesting attestation of the
-     * device's identifiers.
+     * Android, to attested key generation/import operations.  This field must be set only when
+     * requesting attestation of the device's identifiers.
      *
      * If the device does not support ID attestation (or destroyAttestationIds() was previously
      * called and the device can no longer attest its IDs), any key attestation request that
@@ -717,8 +697,8 @@
 
     /**
      * Tag::ATTESTATION_ID_DEVICE provides the device's device name, as returned by Build.DEVICE in
-     * Android, to attestKey().  This field must be set only when requesting attestation of the
-     * device's identifiers.
+     * Android, to attested key generation/import operations.  This field must be set only when
+     * requesting attestation of the device's identifiers.
      *
      * If the device does not support ID attestation (or destroyAttestationIds() was previously
      * called and the device can no longer attest its IDs), any key attestation request that
@@ -730,8 +710,8 @@
 
     /**
      * Tag::ATTESTATION_ID_PRODUCT provides the device's product name, as returned by Build.PRODUCT
-     * in Android, to attestKey().  This field must be set only when requesting attestation of the
-     * device's identifiers.
+     * in Android, to attested key generation/import operations.  This field must be set only when
+     * requesting attestation of the device's identifiers.
      *
      * If the device does not support ID attestation (or destroyAttestationIds() was previously
      * called and the device can no longer attest its IDs), any key attestation request that
@@ -754,8 +734,9 @@
     ATTESTATION_ID_SERIAL = (9 << 28) /* TagType:BYTES */ | 713,
 
     /**
-     * Tag::ATTESTATION_ID_IMEI provides the IMEIs for all radios on the device to attestKey().
-     * This field must be set only when requesting attestation of the device's identifiers.
+     * Tag::ATTESTATION_ID_IMEI provides the IMEIs for all radios on the device to attested key
+     * generation/import operations.  This field must be set only when requesting attestation of the
+     * device's identifiers.
      *
      * If the device does not support ID attestation (or destroyAttestationIds() was previously
      * called and the device can no longer attest its IDs), any key attestation request that
@@ -766,8 +747,9 @@
     ATTESTATION_ID_IMEI = (9 << 28) /* TagType:BYTES */ | 714,
 
     /**
-     * Tag::ATTESTATION_ID_MEID provides the MEIDs for all radios on the device to attestKey().
-     * This field must be set only when requesting attestation of the device's identifiers.
+     * Tag::ATTESTATION_ID_MEID provides the MEIDs for all radios on the device to attested key
+     * generation/import operations.  This field must be set only when requesting attestation of the
+     * device's identifiers.
      *
      * If the device does not support ID attestation (or destroyAttestationIds() was previously
      * called and the device can no longer attest its IDs), any key attestation request that
@@ -779,8 +761,8 @@
 
     /**
      * Tag::ATTESTATION_ID_MANUFACTURER provides the device's manufacturer name, as returned by
-     * Build.MANUFACTURER in Android, to attstKey().  This field must be set only when requesting
-     * attestation of the device's identifiers.
+     * Build.MANUFACTURER in Android, to attested key generation/import operations.  This field must
+     * be set only when requesting attestation of the device's identifiers.
      *
      * If the device does not support ID attestation (or destroyAttestationIds() was previously
      * called and the device can no longer attest its IDs), any key attestation request that
@@ -792,8 +774,8 @@
 
     /**
      * Tag::ATTESTATION_ID_MODEL provides the device's model name, as returned by Build.MODEL in
-     * Android, to attestKey().  This field must be set only when requesting attestation of the
-     * device's identifiers.
+     * Android, to attested key generation/import operations.  This field must be set only when
+     * requesting attestation of the device's identifiers.
      *
      * If the device does not support ID attestation (or destroyAttestationIds() was previously
      * called and the device can no longer attest its IDs), any key attestation request that
@@ -807,9 +789,8 @@
      * Tag::VENDOR_PATCHLEVEL specifies the vendor image security patch level with which the key may
      * be used.  This tag is never sent to the keyMint TA, but is added to the hardware-enforced
      * authorization list by the TA.  Any attempt to use a key with a Tag::VENDOR_PATCHLEVEL value
-     * different from the currently-running system patchlevel must cause begin(),
-     * getKeyCharacteristics() or exportKey() to return ErrorCode::KEY_REQUIRES_UPGRADE.  See
-     * upgradeKey() for details.
+     * different from the currently-running system patchlevel must cause begin() or
+     * exportKey() to return ErrorCode::KEY_REQUIRES_UPGRADE.  See upgradeKey() for details.
      *
      * The value of the tag is an integer of the form YYYYMMDD, where YYYY is the four-digit year of
      * the last update, MM is the two-digit month and DD is the two-digit day of the last
@@ -830,8 +811,8 @@
      * key may be used.  This tag is never sent to the keyMint TA, but is added to the
      * hardware-enforced authorization list by the TA.  Any attempt to use a key with a
      * Tag::BOOT_PATCHLEVEL value different from the currently-running system patchlevel must
-     * cause begin(), getKeyCharacteristics() or exportKey() to return
-     * ErrorCode::KEY_REQUIRES_UPGRADE.  See upgradeKey() for details.
+     * cause begin() or exportKey() to return ErrorCode::KEY_REQUIRES_UPGRADE.  See upgradeKey() for
+     * details.
      *
      * The value of the tag is an integer of the form YYYYMMDD, where YYYY is the four-digit year of
      * the last update, MM is the two-digit month and DD is the two-digit day of the last
@@ -839,20 +820,20 @@
      * the value would be 20180605.  If the day is not known, 00 may be substituted.
      *
      * During each boot, the bootloader must provide the patch level of the boot image to the secure
-     * envirionment (mechanism is implementation-defined).
+     * environment (mechanism is implementation-defined).
      *
      * Must be hardware-enforced.
      */
     BOOT_PATCHLEVEL = (3 << 28) /* TagType:UINT */ | 719,
 
     /**
-     * DEVICE_UNIQUE_ATTESTATION is an argument to IKeyMintDevice::attestKey().  It indicates that
-     * attestation using a device-unique key is requested, rather than a batch key.  When a
-     * device-unique key is used, only the attestation certificate is returned; no additional
-     * chained certificates are provided.  It's up to the caller to recognize the device-unique
-     * signing key.  Only SecurityLevel::STRONGBOX IKeyMintDevices may support device-unique
-     * attestations.  SecurityLevel::TRUSTED_ENVIRONMENT IKeyMintDevices must return
-     * ErrorCode::INVALID_ARGUMENT if they receive DEVICE_UNIQUE_ATTESTATION.
+     * DEVICE_UNIQUE_ATTESTATION is an argument to IKeyMintDevice::attested key generation/import
+     * operations.  It indicates that attestation using a device-unique key is requested, rather
+     * than a batch key.  When a device-unique key is used, only the attestation certificate is
+     * returned; no additional chained certificates are provided.  It's up to the caller to
+     * recognize the device-unique signing key.  Only SecurityLevel::STRONGBOX IKeyMintDevices may
+     * support device-unique attestations.  SecurityLevel::TRUSTED_ENVIRONMENT IKeyMintDevices must
+     * return ErrorCode::INVALID_ARGUMENT if they receive DEVICE_UNIQUE_ATTESTATION.
      * SecurityLevel::STRONGBOX IKeyMintDevices need not support DEVICE_UNIQUE_ATTESTATION, and
      * return ErrorCode::CANNOT_ATTEST_IDS if they do not support it.
      *
@@ -935,33 +916,34 @@
     CONFIRMATION_TOKEN = (9 << 28) /* TagType:BYTES */ | 1005,
 
     /**
-     * Tag::CERTIFICATE_SERIAL specifies the serial number to be assigned to the
-     * attestation certificate to be generated for the given key.  This parameter should only
-     * be passed to keyMint in the attestation parameters during generateKey() and importKey().
+     * Tag::CERTIFICATE_SERIAL specifies the serial number to be assigned to the attestation
+     * certificate to be generated for the given key.  This parameter should only be passed to
+     * keyMint in the attestation parameters during generateKey() and importKey().  If not provided,
+     * the serial shall default to 1.
      */
     CERTIFICATE_SERIAL = (8 << 28) /* TagType:BIGNUM */ | 1006,
 
     /**
-     * Tag::CERTIFICATE_SUBJECT the certificate subject. The value is a DER encoded X509 NAME.
-     * This value is used when generating a self signed certificates. This tag may be specified
+     * Tag::CERTIFICATE_SUBJECT the certificate subject.  The value is a DER encoded X509 NAME.
+     * This value is used when generating a self signed certificates.  This tag may be specified
      * during generateKey and importKey. If not provided the subject name shall default to
-     * <TODO default subject here>.
+     * CN="Android Keystore Key".
      */
     CERTIFICATE_SUBJECT = (9 << 28) /* TagType:BYTES */ | 1007,
 
     /**
      * Tag::CERTIFICATE_NOT_BEFORE the beginning of the validity of the certificate in UNIX epoch
-     * time in seconds. This value is used when generating attestation or self signed certificates.
-     * ErrorCode::MISSING_NOT_BEFORE must be returned if this tag is not provided if this tag is
-     * not provided to generateKey or importKey.
+     * time in seconds.  This value is used when generating attestation or self signed certificates.
+     * ErrorCode::MISSING_NOT_BEFORE must be returned if this tag is not provided if this tag is not
+     * provided to generateKey or importKey.
      */
     CERTIFICATE_NOT_BEFORE = (6 << 28) /* TagType:DATE */ | 1008,
 
     /**
-     * Tag::CERTIFICATE_NOT_AFTER the end of the validity of the certificate in UNIX epoch
-     * time in seconds. This value is used when generating attestation or self signed certificates.
-     * ErrorCode::MISSING_NOT_AFTER must be returned if this tag is not provided to generateKey
-     * or importKey.
+     * Tag::CERTIFICATE_NOT_AFTER the end of the validity of the certificate in UNIX epoch time in
+     * seconds.  This value is used when generating attestation or self signed certificates.
+     * ErrorCode::MISSING_NOT_AFTER must be returned if this tag is not provided to generateKey or
+     * importKey.
      */
     CERTIFICATE_NOT_AFTER = (6 << 28) /* TagType:DATE */ | 1009,
 
diff --git a/security/keymint/aidl/default/Android.bp b/security/keymint/aidl/default/Android.bp
index ebdc9b7..230534c 100644
--- a/security/keymint/aidl/default/Android.bp
+++ b/security/keymint/aidl/default/Android.bp
@@ -33,7 +33,6 @@
         "libkeymint",
         "liblog",
         "libpuresoftkeymasterdevice",
-        "libremote_provisioner",
         "libutils",
     ],
     srcs: [
@@ -51,28 +50,3 @@
     vendor: true,
     src: "android.hardware.hardware_keystore.xml",
 }
-
-cc_library {
-    name: "libremote_provisioner",
-    vendor_available: true,
-    static_libs: [
-        "libkeymint_remote_prov_support",
-    ],
-    shared_libs: [
-        "android.hardware.security.keymint-V1-ndk_platform",
-        "libbinder_ndk",
-        "libcppbor_external",
-        "libcppcose",
-        "libcrypto",
-        "libkeymaster_portable",
-        "libkeymint",
-        "liblog",
-        "libpuresoftkeymasterdevice",
-    ],
-    export_include_dirs: [
-        ".",
-    ],
-    srcs: [
-        "RemotelyProvisionedComponent.cpp",
-    ],
-}
diff --git a/security/keymint/aidl/default/RemotelyProvisionedComponent.cpp b/security/keymint/aidl/default/RemotelyProvisionedComponent.cpp
deleted file mode 100644
index 5b02729..0000000
--- a/security/keymint/aidl/default/RemotelyProvisionedComponent.cpp
+++ /dev/null
@@ -1,464 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "RemotelyProvisionedComponent.h"
-
-#include <assert.h>
-#include <variant>
-
-#include <cppbor.h>
-#include <cppbor_parse.h>
-
-#include <KeyMintUtils.h>
-#include <cppcose/cppcose.h>
-#include <keymaster/keymaster_configuration.h>
-#include <remote_prov/remote_prov_utils.h>
-
-#include <openssl/bn.h>
-#include <openssl/ec.h>
-#include <openssl/rand.h>
-#include <openssl/x509.h>
-
-namespace aidl::android::hardware::security::keymint {
-
-using ::std::string;
-using ::std::tuple;
-using ::std::unique_ptr;
-using ::std::variant;
-using ::std::vector;
-using bytevec = ::std::vector<uint8_t>;
-
-using namespace cppcose;
-using namespace keymaster;
-
-namespace {
-
-// Hard-coded set of acceptable public keys that can act as roots of EEK chains.
-inline const vector<bytevec> kAuthorizedEekRoots = {
-        // TODO(drysdale): replace this random value with real root pubkey(s).
-        {0x5c, 0xea, 0x4b, 0xd2, 0x31, 0x27, 0x15, 0x5e, 0x62, 0x94, 0x70,
-         0x53, 0x94, 0x43, 0x0f, 0x9a, 0x89, 0xd5, 0xc5, 0x0f, 0x82, 0x9b,
-         0xcd, 0x10, 0xe0, 0x79, 0xef, 0xf3, 0xfa, 0x40, 0xeb, 0x0a},
-};
-
-constexpr auto STATUS_FAILED = RemotelyProvisionedComponent::STATUS_FAILED;
-constexpr auto STATUS_INVALID_EEK = RemotelyProvisionedComponent::STATUS_INVALID_EEK;
-constexpr auto STATUS_INVALID_MAC = RemotelyProvisionedComponent::STATUS_INVALID_MAC;
-constexpr uint32_t kAffinePointLength = 32;
-struct AStatusDeleter {
-    void operator()(AStatus* p) { AStatus_delete(p); }
-};
-
-// TODO(swillden): Remove the dependency on AStatus stuff.  The COSE lib should use something like
-// StatusOr, but it shouldn't depend on AStatus.
-class Status {
-  public:
-    Status() {}
-    Status(int32_t errCode, const std::string& errMsg)
-        : status_(AStatus_fromServiceSpecificErrorWithMessage(errCode, errMsg.c_str())) {}
-    explicit Status(const std::string& errMsg)
-        : status_(AStatus_fromServiceSpecificErrorWithMessage(STATUS_FAILED, errMsg.c_str())) {}
-    Status(AStatus* status) : status_(status) {}
-    Status(Status&&) = default;
-    Status(const Status&) = delete;
-
-    operator ::ndk::ScopedAStatus() && { return ndk::ScopedAStatus(status_.release()); }
-
-    bool isOk() { return !status_; }
-
-    // Don't call getMessage() unless isOk() returns false;
-    const char* getMessage() const { return AStatus_getMessage(status_.get()); }
-
-  private:
-    std::unique_ptr<AStatus, AStatusDeleter> status_;
-};
-
-template <typename T>
-class StatusOr {
-  public:
-    StatusOr(AStatus* status) : status_(status) {}
-    StatusOr(Status status) : status_(std::move(status)) {}
-    StatusOr(T val) : value_(std::move(val)) {}
-
-    bool isOk() { return status_.isOk(); }
-
-    T* operator->() & {
-        assert(isOk());
-        return &value_.value();
-    }
-    T& operator*() & {
-        assert(isOk());
-        return value_.value();
-    }
-    T&& operator*() && {
-        assert(isOk());
-        return std::move(value_).value();
-    }
-
-    const char* getMessage() const {
-        assert(!isOk());
-        return status_.getMessage();
-    }
-
-    Status moveError() {
-        assert(!isOk());
-        return std::move(status_);
-    }
-
-    T moveValue() { return std::move(value_).value(); }
-
-  private:
-    Status status_;
-    std::optional<T> value_;
-};
-
-StatusOr<std::pair<bytevec /* EEK pub */, bytevec /* EEK ID */>> validateAndExtractEekPubAndId(
-        bool testMode, const bytevec& endpointEncryptionCertChain) {
-    auto [item, newPos, errMsg] = cppbor::parse(endpointEncryptionCertChain);
-
-    if (!item || !item->asArray()) {
-        return Status("Error parsing EEK chain" + errMsg);
-    }
-
-    const cppbor::Array* certArr = item->asArray();
-    bytevec lastPubKey;
-    for (int i = 0; i < certArr->size(); ++i) {
-        auto cosePubKey = verifyAndParseCoseSign1(testMode, certArr->get(i)->asArray(),
-                                                  std::move(lastPubKey), bytevec{} /* AAD */);
-        if (!cosePubKey) {
-            return Status(STATUS_INVALID_EEK,
-                          "Failed to validate EEK chain: " + cosePubKey.moveMessage());
-        }
-        lastPubKey = *std::move(cosePubKey);
-
-        // In prod mode the first pubkey should match a well-known Google public key.
-        if (!testMode && i == 0 &&
-            std::find(kAuthorizedEekRoots.begin(), kAuthorizedEekRoots.end(), lastPubKey) ==
-                    kAuthorizedEekRoots.end()) {
-            return Status(STATUS_INVALID_EEK, "Unrecognized root of EEK chain");
-        }
-    }
-
-    auto eek = CoseKey::parseX25519(lastPubKey, true /* requireKid */);
-    if (!eek) return Status(STATUS_INVALID_EEK, "Failed to get EEK: " + eek.moveMessage());
-
-    return std::make_pair(eek->getBstrValue(CoseKey::PUBKEY_X).value(),
-                          eek->getBstrValue(CoseKey::KEY_ID).value());
-}
-
-StatusOr<bytevec /* pubkeys */> validateAndExtractPubkeys(bool testMode,
-                                                          const vector<MacedPublicKey>& keysToSign,
-                                                          const bytevec& macKey) {
-    auto pubKeysToMac = cppbor::Array();
-    for (auto& keyToSign : keysToSign) {
-        auto [macedKeyItem, _, coseMacErrMsg] = cppbor::parse(keyToSign.macedKey);
-        if (!macedKeyItem || !macedKeyItem->asArray() ||
-            macedKeyItem->asArray()->size() != kCoseMac0EntryCount) {
-            return Status("Invalid COSE_Mac0 structure");
-        }
-
-        auto protectedParms = macedKeyItem->asArray()->get(kCoseMac0ProtectedParams)->asBstr();
-        auto unprotectedParms = macedKeyItem->asArray()->get(kCoseMac0UnprotectedParams)->asMap();
-        auto payload = macedKeyItem->asArray()->get(kCoseMac0Payload)->asBstr();
-        auto tag = macedKeyItem->asArray()->get(kCoseMac0Tag)->asBstr();
-        if (!protectedParms || !unprotectedParms || !payload || !tag) {
-            return Status("Invalid COSE_Mac0 contents");
-        }
-
-        auto [protectedMap, __, errMsg] = cppbor::parse(protectedParms);
-        if (!protectedMap || !protectedMap->asMap()) {
-            return Status("Invalid Mac0 protected: " + errMsg);
-        }
-        auto& algo = protectedMap->asMap()->get(ALGORITHM);
-        if (!algo || !algo->asInt() || algo->asInt()->value() != HMAC_256) {
-            return Status("Unsupported Mac0 algorithm");
-        }
-
-        auto pubKey = CoseKey::parse(payload->value(), EC2, ES256, P256);
-        if (!pubKey) return Status(pubKey.moveMessage());
-
-        bool testKey = static_cast<bool>(pubKey->getMap().get(CoseKey::TEST_KEY));
-        if (testMode && !testKey) {
-            return Status(BnRemotelyProvisionedComponent::STATUS_PRODUCTION_KEY_IN_TEST_REQUEST,
-                          "Production key in test request");
-        } else if (!testMode && testKey) {
-            return Status(BnRemotelyProvisionedComponent::STATUS_TEST_KEY_IN_PRODUCTION_REQUEST,
-                          "Test key in production request");
-        }
-
-        auto macTag = generateCoseMac0Mac(macKey, {} /* external_aad */, payload->value());
-        if (!macTag) return Status(STATUS_INVALID_MAC, macTag.moveMessage());
-        if (macTag->size() != tag->value().size() ||
-            CRYPTO_memcmp(macTag->data(), tag->value().data(), macTag->size()) != 0) {
-            return Status(STATUS_INVALID_MAC, "MAC tag mismatch");
-        }
-
-        pubKeysToMac.add(pubKey->moveMap());
-    }
-
-    return pubKeysToMac.encode();
-}
-
-StatusOr<std::pair<bytevec, bytevec>> buildCosePublicKeyFromKmCert(
-        const keymaster_blob_t* km_cert) {
-    if (km_cert == nullptr) {
-        return Status(STATUS_FAILED, "km_cert is a nullptr");
-    }
-    const uint8_t* temp = km_cert->data;
-    X509* cert = d2i_X509(NULL, &temp, km_cert->data_length);
-    if (cert == nullptr) {
-        return Status(STATUS_FAILED, "d2i_X509 returned null when attempting to get the cert.");
-    }
-    EVP_PKEY* pubKey = X509_get_pubkey(cert);
-    if (pubKey == nullptr) {
-        return Status(STATUS_FAILED, "Boringssl failed to get the public key from the cert");
-    }
-    EC_KEY* ecKey = EVP_PKEY_get0_EC_KEY(pubKey);
-    if (ecKey == nullptr) {
-        return Status(STATUS_FAILED,
-                      "The key in the certificate returned from GenerateKey is not "
-                      "an EC key.");
-    }
-    const EC_POINT* jacobian_coords = EC_KEY_get0_public_key(ecKey);
-    BIGNUM x;
-    BIGNUM y;
-    BN_CTX* ctx = BN_CTX_new();
-    if (ctx == nullptr) {
-        return Status(STATUS_FAILED, "Memory allocation failure for BN_CTX");
-    }
-    if (!EC_POINT_get_affine_coordinates_GFp(EC_KEY_get0_group(ecKey), jacobian_coords, &x, &y,
-                                             ctx)) {
-        return Status(STATUS_FAILED, "Failed to get affine coordinates");
-    }
-    bytevec x_bytestring(kAffinePointLength);
-    bytevec y_bytestring(kAffinePointLength);
-    if (BN_bn2binpad(&x, x_bytestring.data(), kAffinePointLength) != kAffinePointLength) {
-        return Status(STATUS_FAILED, "Wrote incorrect number of bytes for x coordinate");
-    }
-    if (BN_bn2binpad(&y, y_bytestring.data(), kAffinePointLength) != kAffinePointLength) {
-        return Status(STATUS_FAILED, "Wrote incorrect number of bytes for y coordinate");
-    }
-    BN_CTX_free(ctx);
-    return std::make_pair(x_bytestring, y_bytestring);
-}
-
-cppbor::Array buildCertReqRecipients(const bytevec& pubkey, const bytevec& kid) {
-    return cppbor::Array()                   // Array of recipients
-            .add(cppbor::Array()             // Recipient
-                         .add(cppbor::Map()  // Protected
-                                      .add(ALGORITHM, ECDH_ES_HKDF_256)
-                                      .canonicalize()
-                                      .encode())
-                         .add(cppbor::Map()  // Unprotected
-                                      .add(COSE_KEY, cppbor::Map()
-                                                             .add(CoseKey::KEY_TYPE, OCTET_KEY_PAIR)
-                                                             .add(CoseKey::CURVE, cppcose::X25519)
-                                                             .add(CoseKey::PUBKEY_X, pubkey)
-                                                             .canonicalize())
-                                      .add(KEY_ID, kid)
-                                      .canonicalize())
-                         .add(cppbor::Null()));  // No ciphertext
-}
-
-static keymaster_key_param_t kKeyMintEcdsaP256Params[] = {
-        Authorization(TAG_PURPOSE, KM_PURPOSE_ATTEST_KEY),
-        Authorization(TAG_ALGORITHM, KM_ALGORITHM_EC), Authorization(TAG_KEY_SIZE, 256),
-        Authorization(TAG_DIGEST, KM_DIGEST_SHA_2_256),
-        Authorization(TAG_EC_CURVE, KM_EC_CURVE_P_256), Authorization(TAG_NO_AUTH_REQUIRED),
-        // The certificate generated by KM will be discarded, these values don't matter.
-        Authorization(TAG_CERTIFICATE_NOT_BEFORE, 0), Authorization(TAG_CERTIFICATE_NOT_AFTER, 0)};
-
-}  // namespace
-
-RemotelyProvisionedComponent::RemotelyProvisionedComponent(
-        std::shared_ptr<keymint::AndroidKeyMintDevice> keymint) {
-    std::tie(devicePrivKey_, bcc_) = generateBcc();
-    impl_ = keymint->getKeymasterImpl();
-}
-
-RemotelyProvisionedComponent::~RemotelyProvisionedComponent() {}
-
-ScopedAStatus RemotelyProvisionedComponent::generateEcdsaP256KeyPair(bool testMode,
-                                                                     MacedPublicKey* macedPublicKey,
-                                                                     bytevec* privateKeyHandle) {
-    // TODO(jbires): The following should move from ->GenerateKey to ->GenerateRKPKey and everything
-    //              after the GenerateKey call should basically be moved into that new function call
-    //              as well once the issue with libcppbor in system/keymaster is sorted out
-    GenerateKeyRequest request(impl_->message_version());
-    request.key_description.Reinitialize(kKeyMintEcdsaP256Params,
-                                         array_length(kKeyMintEcdsaP256Params));
-    GenerateKeyResponse response(impl_->message_version());
-    impl_->GenerateKey(request, &response);
-    if (response.error != KM_ERROR_OK) {
-        return km_utils::kmError2ScopedAStatus(response.error);
-    }
-
-    if (response.certificate_chain.entry_count != 1) {
-        // Error: Need the single non-signed certificate with the public key in it.
-        return Status(STATUS_FAILED,
-                      "Expected to receive a single certificate from GenerateKey. Instead got: " +
-                              std::to_string(response.certificate_chain.entry_count));
-    }
-    auto affineCoords = buildCosePublicKeyFromKmCert(response.certificate_chain.begin());
-    if (!affineCoords.isOk()) return affineCoords.moveError();
-    cppbor::Map cosePublicKeyMap = cppbor::Map()
-                                           .add(CoseKey::KEY_TYPE, EC2)
-                                           .add(CoseKey::ALGORITHM, ES256)
-                                           .add(CoseKey::CURVE, cppcose::P256)
-                                           .add(CoseKey::PUBKEY_X, affineCoords->first)
-                                           .add(CoseKey::PUBKEY_Y, affineCoords->second);
-    if (testMode) {
-        cosePublicKeyMap.add(CoseKey::TEST_KEY, cppbor::Null());
-    }
-
-    bytevec cosePublicKey = cosePublicKeyMap.canonicalize().encode();
-
-    auto macedKey = constructCoseMac0(testMode ? remote_prov::kTestMacKey : macKey_,
-                                      {} /* externalAad */, cosePublicKey);
-    if (!macedKey) return Status(macedKey.moveMessage());
-
-    macedPublicKey->macedKey = macedKey->encode();
-    *privateKeyHandle = km_utils::kmBlob2vector(response.key_blob);
-    return ScopedAStatus::ok();
-}
-
-ScopedAStatus RemotelyProvisionedComponent::generateCertificateRequest(
-        bool testMode, const vector<MacedPublicKey>& keysToSign,
-        const bytevec& endpointEncCertChain, const bytevec& challenge, DeviceInfo* deviceInfo,
-        ProtectedData* protectedData, bytevec* keysToSignMac) {
-    auto pubKeysToSign = validateAndExtractPubkeys(testMode, keysToSign,
-                                                   testMode ? remote_prov::kTestMacKey : macKey_);
-    if (!pubKeysToSign.isOk()) return pubKeysToSign.moveError();
-
-    bytevec ephemeralMacKey = remote_prov::randomBytes(SHA256_DIGEST_LENGTH);
-
-    auto pubKeysToSignMac = generateCoseMac0Mac(ephemeralMacKey, bytevec{}, *pubKeysToSign);
-    if (!pubKeysToSignMac) return Status(pubKeysToSignMac.moveMessage());
-    *keysToSignMac = *std::move(pubKeysToSignMac);
-
-    bytevec devicePrivKey;
-    cppbor::Array bcc;
-    if (testMode) {
-        std::tie(devicePrivKey, bcc) = generateBcc();
-    } else {
-        devicePrivKey = devicePrivKey_;
-        bcc = bcc_.clone();
-    }
-
-    std::unique_ptr<cppbor::Map> deviceInfoMap = createDeviceInfo();
-    deviceInfo->deviceInfo = deviceInfoMap->encode();
-    auto signedMac = constructCoseSign1(devicePrivKey /* Signing key */,  //
-                                        ephemeralMacKey /* Payload */,
-                                        cppbor::Array() /* AAD */
-                                                .add(challenge)
-                                                .add(std::move(deviceInfoMap))
-                                                .encode());
-    if (!signedMac) return Status(signedMac.moveMessage());
-
-    bytevec ephemeralPrivKey(X25519_PRIVATE_KEY_LEN);
-    bytevec ephemeralPubKey(X25519_PUBLIC_VALUE_LEN);
-    X25519_keypair(ephemeralPubKey.data(), ephemeralPrivKey.data());
-
-    auto eek = validateAndExtractEekPubAndId(testMode, endpointEncCertChain);
-    if (!eek.isOk()) return eek.moveError();
-
-    auto sessionKey = x25519_HKDF_DeriveKey(ephemeralPubKey, ephemeralPrivKey, eek->first,
-                                            true /* senderIsA */);
-    if (!sessionKey) return Status(sessionKey.moveMessage());
-
-    auto coseEncrypted =
-            constructCoseEncrypt(*sessionKey, remote_prov::randomBytes(kAesGcmNonceLength),
-                                 cppbor::Array()  // payload
-                                         .add(signedMac.moveValue())
-                                         .add(std::move(bcc))
-                                         .encode(),
-                                 {},  // aad
-                                 buildCertReqRecipients(ephemeralPubKey, eek->second));
-
-    if (!coseEncrypted) return Status(coseEncrypted.moveMessage());
-    protectedData->protectedData = coseEncrypted->encode();
-
-    return ScopedAStatus::ok();
-}
-
-bytevec RemotelyProvisionedComponent::deriveBytesFromHbk(const string& context,
-                                                         size_t numBytes) const {
-    bytevec fakeHbk(32, 0);
-    bytevec result(numBytes);
-
-    // TODO(swillden): Figure out if HKDF can fail.  It doesn't seem like it should be able to,
-    // but the function does return an error code.
-    HKDF(result.data(), numBytes,               //
-         EVP_sha256(),                          //
-         fakeHbk.data(), fakeHbk.size(),        //
-         nullptr /* salt */, 0 /* salt len */,  //
-         reinterpret_cast<const uint8_t*>(context.data()), context.size());
-
-    return result;
-}
-
-std::unique_ptr<cppbor::Map> RemotelyProvisionedComponent::createDeviceInfo() const {
-    auto result = std::make_unique<cppbor::Map>(cppbor::Map());
-
-    // The following placeholders show how the DeviceInfo map would be populated.
-    // result->add(cppbor::Tstr("brand"), cppbor::Tstr("Google"));
-    // result->add(cppbor::Tstr("manufacturer"), cppbor::Tstr("Google"));
-    // result->add(cppbor::Tstr("product"), cppbor::Tstr("Fake"));
-    // result->add(cppbor::Tstr("model"), cppbor::Tstr("Imaginary"));
-    // result->add(cppbor::Tstr("board"), cppbor::Tstr("Chess"));
-    // result->add(cppbor::Tstr("vb_state"), cppbor::Tstr("orange"));
-    // result->add(cppbor::Tstr("bootloader_state"), cppbor::Tstr("unlocked"));
-    // result->add(cppbor::Tstr("os_version"), cppbor::Tstr("SC"));
-    // result->add(cppbor::Tstr("system_patch_level"), cppbor::Uint(20210331));
-    // result->add(cppbor::Tstr("boot_patch_level"), cppbor::Uint(20210331));
-    // result->add(cppbor::Tstr("vendor_patch_level"), cppbor::Uint(20210331));
-
-    result->canonicalize();
-    return result;
-}
-
-std::pair<bytevec /* privKey */, cppbor::Array /* BCC */>
-RemotelyProvisionedComponent::generateBcc() {
-    bytevec privKey(ED25519_PRIVATE_KEY_LEN);
-    bytevec pubKey(ED25519_PUBLIC_KEY_LEN);
-
-    ED25519_keypair(pubKey.data(), privKey.data());
-
-    auto coseKey = cppbor::Map()
-                           .add(CoseKey::KEY_TYPE, OCTET_KEY_PAIR)
-                           .add(CoseKey::ALGORITHM, EDDSA)
-                           .add(CoseKey::CURVE, ED25519)
-                           .add(CoseKey::KEY_OPS, VERIFY)
-                           .add(CoseKey::PUBKEY_X, pubKey)
-                           .canonicalize()
-                           .encode();
-    auto sign1Payload = cppbor::Map()
-                                .add(1 /* Issuer */, "Issuer")
-                                .add(2 /* Subject */, "Subject")
-                                .add(-4670552 /* Subject Pub Key */, coseKey)
-                                .add(-4670553 /* Key Usage (little-endian order) */,
-                                     std::vector<uint8_t>{0x20} /* keyCertSign = 1<<5 */)
-                                .canonicalize()
-                                .encode();
-    auto coseSign1 = constructCoseSign1(privKey,       /* signing key */
-                                        cppbor::Map(), /* extra protected */
-                                        sign1Payload, {} /* AAD */);
-    assert(coseSign1);
-
-    return {privKey, cppbor::Array().add(coseKey).add(coseSign1.moveValue())};
-}
-
-}  // namespace aidl::android::hardware::security::keymint
diff --git a/security/keymint/aidl/default/RemotelyProvisionedComponent.h b/security/keymint/aidl/default/RemotelyProvisionedComponent.h
deleted file mode 100644
index 8185e26..0000000
--- a/security/keymint/aidl/default/RemotelyProvisionedComponent.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <AndroidKeyMintDevice.h>
-#include <aidl/android/hardware/security/keymint/BnRemotelyProvisionedComponent.h>
-#include <aidl/android/hardware/security/keymint/SecurityLevel.h>
-#include <cppbor.h>
-#include <keymaster/UniquePtr.h>
-#include <keymaster/android_keymaster.h>
-
-namespace aidl::android::hardware::security::keymint {
-
-using ::ndk::ScopedAStatus;
-
-class RemotelyProvisionedComponent : public BnRemotelyProvisionedComponent {
-  public:
-    explicit RemotelyProvisionedComponent(std::shared_ptr<keymint::AndroidKeyMintDevice> keymint);
-    virtual ~RemotelyProvisionedComponent();
-
-    ScopedAStatus generateEcdsaP256KeyPair(bool testMode, MacedPublicKey* macedPublicKey,
-                                           std::vector<uint8_t>* privateKeyHandle) override;
-
-    ScopedAStatus generateCertificateRequest(bool testMode,
-                                             const std::vector<MacedPublicKey>& keysToSign,
-                                             const std::vector<uint8_t>& endpointEncCertChain,
-                                             const std::vector<uint8_t>& challenge,
-                                             DeviceInfo* deviceInfo, ProtectedData* protectedData,
-                                             std::vector<uint8_t>* keysToSignMac) override;
-
-  private:
-    // TODO(swillden): Move these into an appropriate Context class.
-    std::vector<uint8_t> deriveBytesFromHbk(const std::string& context, size_t numBytes) const;
-    std::unique_ptr<cppbor::Map> createDeviceInfo() const;
-    std::pair<std::vector<uint8_t>, cppbor::Array> generateBcc();
-
-    std::vector<uint8_t> macKey_ = deriveBytesFromHbk("Key to MAC public keys", 32);
-    std::vector<uint8_t> devicePrivKey_;
-    cppbor::Array bcc_;
-    std::shared_ptr<::keymaster::AndroidKeymaster> impl_;
-};
-
-}  // namespace aidl::android::hardware::security::keymint
diff --git a/security/keymint/aidl/default/service.cpp b/security/keymint/aidl/default/service.cpp
index bcebbaf..8092e34 100644
--- a/security/keymint/aidl/default/service.cpp
+++ b/security/keymint/aidl/default/service.cpp
@@ -21,14 +21,13 @@
 #include <android/binder_process.h>
 
 #include <AndroidKeyMintDevice.h>
+#include <AndroidRemotelyProvisionedComponentDevice.h>
 #include <AndroidSecureClock.h>
 #include <AndroidSharedSecret.h>
 #include <keymaster/soft_keymaster_logger.h>
 
-#include "RemotelyProvisionedComponent.h"
-
 using aidl::android::hardware::security::keymint::AndroidKeyMintDevice;
-using aidl::android::hardware::security::keymint::RemotelyProvisionedComponent;
+using aidl::android::hardware::security::keymint::AndroidRemotelyProvisionedComponentDevice;
 using aidl::android::hardware::security::keymint::SecurityLevel;
 using aidl::android::hardware::security::secureclock::AndroidSecureClock;
 using aidl::android::hardware::security::sharedsecret::AndroidSharedSecret;
@@ -56,7 +55,7 @@
     // Add Shared Secret Service
     addService<AndroidSharedSecret>(keyMint);
     // Add Remotely Provisioned Component Service
-    addService<RemotelyProvisionedComponent>(keyMint);
+    addService<AndroidRemotelyProvisionedComponentDevice>(keyMint);
     ABinderProcess_joinThreadPool();
     return EXIT_FAILURE;  // should not reach
 }
diff --git a/security/keymint/aidl/vts/functional/Android.bp b/security/keymint/aidl/vts/functional/Android.bp
index c1affa6..d5c45e2 100644
--- a/security/keymint/aidl/vts/functional/Android.bp
+++ b/security/keymint/aidl/vts/functional/Android.bp
@@ -31,6 +31,7 @@
     ],
     srcs: [
         "AttestKeyTest.cpp",
+        "DeviceUniqueAttestationTest.cpp",
         "KeyMintTest.cpp",
     ],
     shared_libs: [
@@ -43,6 +44,8 @@
         "android.hardware.security.keymint-V1-ndk_platform",
         "android.hardware.security.secureclock-V1-ndk_platform",
         "libcppbor_external",
+        "libcppcose_rkp",
+        "libkeymint_remote_prov_support",
         "libkeymint_vts_test_utils",
     ],
     test_suites: [
@@ -73,6 +76,9 @@
         "android.hardware.security.keymint-V1-ndk_platform",
         "android.hardware.security.secureclock-V1-ndk_platform",
         "libcppbor_external",
+        "libcppcose_rkp",
+        "libgmock_ndk",
+        "libkeymint_remote_prov_support",
     ],
 }
 
@@ -87,21 +93,20 @@
     ],
     shared_libs: [
         "libbinder_ndk",
-        "libcppbor_external",
         "libcrypto",
-        "libkeymaster_portable",
-        "libpuresoftkeymasterdevice",
     ],
     static_libs: [
         "android.hardware.security.keymint-V1-ndk_platform",
         "android.hardware.security.secureclock-V1-ndk_platform",
-        "libcppcose",
+        "libcppbor_external",
+        "libcppcose_rkp",
         "libgmock_ndk",
+        "libkeymaster_portable",
         "libkeymint",
         "libkeymint_support",
         "libkeymint_remote_prov_support",
         "libkeymint_vts_test_utils",
-        "libremote_provisioner",
+        "libpuresoftkeymasterdevice",
     ],
     test_suites: [
         "general-tests",
diff --git a/security/keymint/aidl/vts/functional/AttestKeyTest.cpp b/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
index daa3e18..4e951d6 100644
--- a/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
+++ b/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
@@ -35,6 +35,12 @@
 
 using AttestKeyTest = KeyMintAidlTestBase;
 
+/*
+ * AttestKeyTest.AllRsaSizes
+ *
+ * This test creates self signed RSA attestation keys of various sizes, and verify they can be
+ * used to sign other RSA and EC keys.
+ */
 TEST_P(AttestKeyTest, AllRsaSizes) {
     for (auto size : ValidKeySizes(Algorithm::RSA)) {
         /*
@@ -54,7 +60,7 @@
         EXPECT_TRUE(IsSelfSigned(attest_key_cert_chain)) << "Failed on size " << size;
 
         /*
-         * Use attestation key to sign RSA key
+         * Use attestation key to sign RSA signing key
          */
         attest_key.issuerSubjectName = make_name_from_str("Android Keystore Key");
         vector<uint8_t> attested_key_blob;
@@ -81,14 +87,47 @@
         EXPECT_FALSE(ChainSignaturesAreValid(attested_key_cert_chain));
 
         // Appending the attest_key chain to the attested_key_chain should yield a valid chain.
-        if (attest_key_cert_chain.size() > 0) {
-            attested_key_cert_chain.push_back(attest_key_cert_chain[0]);
-        }
+        attested_key_cert_chain.push_back(attest_key_cert_chain[0]);
         EXPECT_TRUE(ChainSignaturesAreValid(attested_key_cert_chain));
+        EXPECT_EQ(attested_key_cert_chain.size(), 2);
+
+        /*
+         * Use attestation key to sign RSA decryption key
+         */
+        attested_key_characteristics.resize(0);
+        attested_key_cert_chain.resize(0);
+        EXPECT_EQ(ErrorCode::OK,
+                  GenerateKey(AuthorizationSetBuilder()
+                                      .RsaEncryptionKey(2048, 65537)
+                                      .Digest(Digest::NONE)
+                                      .Padding(PaddingMode::NONE)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .AttestationChallenge("foo2")
+                                      .AttestationApplicationId("bar2")
+                                      .SetDefaultValidity(),
+                              attest_key, &attested_key_blob, &attested_key_characteristics,
+                              &attested_key_cert_chain));
+
+        CheckedDeleteKey(&attested_key_blob);
+
+        hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
+        sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
+        EXPECT_TRUE(verify_attestation_record("foo2", "bar2", sw_enforced, hw_enforced, SecLevel(),
+                                              attested_key_cert_chain[0].encodedCertificate));
+
+        // Attestation by itself is not valid (last entry is not self-signed).
+        EXPECT_FALSE(ChainSignaturesAreValid(attested_key_cert_chain));
+
+        // Appending the attest_key chain to the attested_key_chain should yield a valid chain.
+        attested_key_cert_chain.push_back(attest_key_cert_chain[0]);
+        EXPECT_TRUE(ChainSignaturesAreValid(attested_key_cert_chain));
+        EXPECT_EQ(attested_key_cert_chain.size(), 2);
 
         /*
          * Use attestation key to sign EC key
          */
+        attested_key_characteristics.resize(0);
+        attested_key_cert_chain.resize(0);
         EXPECT_EQ(ErrorCode::OK,
                   GenerateKey(AuthorizationSetBuilder()
                                       .EcdsaSigningKey(EcCurve::P_256)
@@ -111,9 +150,7 @@
         EXPECT_FALSE(ChainSignaturesAreValid(attested_key_cert_chain));
 
         // Appending the attest_key chain to the attested_key_chain should yield a valid chain.
-        if (attest_key_cert_chain.size() > 0) {
-            attested_key_cert_chain.push_back(attest_key_cert_chain[0]);
-        }
+        attested_key_cert_chain.push_back(attest_key_cert_chain[0]);
         EXPECT_TRUE(ChainSignaturesAreValid(attested_key_cert_chain));
 
         // Bail early if anything failed.
@@ -121,6 +158,327 @@
     }
 }
 
+/*
+ * AttestKeyTest.RsaAttestedAttestKeys
+ *
+ * This test creates an RSA attestation key signed by factory keys, and varifies it can be
+ * used to sign other RSA and EC keys.
+ */
+TEST_P(AttestKeyTest, RsaAttestedAttestKeys) {
+    auto challenge = "hello";
+    auto app_id = "foo";
+
+    auto subject = "cert subj 2";
+    vector<uint8_t> subject_der(make_name_from_str(subject));
+
+    uint64_t serial_int = 66;
+    vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+    /*
+     * Create attestation key.
+     */
+    AttestationKey attest_key;
+    vector<KeyCharacteristics> attest_key_characteristics;
+    vector<Certificate> attest_key_cert_chain;
+    ASSERT_EQ(ErrorCode::OK,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .RsaSigningKey(2048, 65537)
+                                  .AttestKey()
+                                  .AttestationChallenge(challenge)
+                                  .AttestationApplicationId(app_id)
+                                  .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                  .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                  .Authorization(TAG_NO_AUTH_REQUIRED)
+                                  .SetDefaultValidity(),
+                          {} /* attestation signing key */, &attest_key.keyBlob,
+                          &attest_key_characteristics, &attest_key_cert_chain));
+
+    EXPECT_GT(attest_key_cert_chain.size(), 1);
+    verify_subject_and_serial(attest_key_cert_chain[0], serial_int, subject, false);
+    EXPECT_TRUE(ChainSignaturesAreValid(attest_key_cert_chain));
+
+    AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attest_key_characteristics);
+    AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attest_key_characteristics);
+    EXPECT_TRUE(verify_attestation_record(challenge, app_id,  //
+                                          sw_enforced, hw_enforced, SecLevel(),
+                                          attest_key_cert_chain[0].encodedCertificate));
+
+    /*
+     * Use attestation key to sign RSA key
+     */
+    attest_key.issuerSubjectName = subject_der;
+    vector<uint8_t> attested_key_blob;
+    vector<KeyCharacteristics> attested_key_characteristics;
+    vector<Certificate> attested_key_cert_chain;
+
+    auto subject2 = "cert subject";
+    vector<uint8_t> subject_der2(make_name_from_str(subject2));
+
+    uint64_t serial_int2 = 987;
+    vector<uint8_t> serial_blob2(build_serial_blob(serial_int2));
+
+    EXPECT_EQ(ErrorCode::OK,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .RsaSigningKey(2048, 65537)
+                                  .Authorization(TAG_NO_AUTH_REQUIRED)
+                                  .AttestationChallenge("foo")
+                                  .AttestationApplicationId("bar")
+                                  .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob2)
+                                  .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der2)
+                                  .SetDefaultValidity(),
+                          attest_key, &attested_key_blob, &attested_key_characteristics,
+                          &attested_key_cert_chain));
+
+    CheckedDeleteKey(&attested_key_blob);
+    CheckedDeleteKey(&attest_key.keyBlob);
+
+    AuthorizationSet hw_enforced2 = HwEnforcedAuthorizations(attested_key_characteristics);
+    AuthorizationSet sw_enforced2 = SwEnforcedAuthorizations(attested_key_characteristics);
+    EXPECT_TRUE(verify_attestation_record("foo", "bar", sw_enforced2, hw_enforced2, SecLevel(),
+                                          attested_key_cert_chain[0].encodedCertificate));
+
+    // Attestation by itself is not valid (last entry is not self-signed).
+    EXPECT_FALSE(ChainSignaturesAreValid(attested_key_cert_chain));
+
+    // Appending the attest_key chain to the attested_key_chain should yield a valid chain.
+    attested_key_cert_chain.insert(attested_key_cert_chain.end(), attest_key_cert_chain.begin(),
+                                   attest_key_cert_chain.end());
+
+    EXPECT_TRUE(ChainSignaturesAreValid(attested_key_cert_chain));
+    EXPECT_GT(attested_key_cert_chain.size(), 2);
+    verify_subject_and_serial(attested_key_cert_chain[0], serial_int2, subject2, false);
+}
+
+/*
+ * AttestKeyTest.RsaAttestKeyChaining
+ *
+ * This test creates a chain of multiple RSA attest keys, each used to sign the next attest key,
+ * with the last attest key signed by the factory chain.
+ */
+TEST_P(AttestKeyTest, RsaAttestKeyChaining) {
+    const int chain_size = 6;
+    vector<vector<uint8_t>> key_blob_list(chain_size);
+    vector<vector<Certificate>> cert_chain_list(chain_size);
+
+    for (int i = 0; i < chain_size; i++) {
+        string sub = "attest key chaining ";
+        char index = '1' + i;
+        string subject = sub + index;
+        vector<uint8_t> subject_der(make_name_from_str(subject));
+
+        uint64_t serial_int = 7000 + i;
+        vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+        vector<KeyCharacteristics> attested_key_characteristics;
+        AttestationKey attest_key;
+        optional<AttestationKey> attest_key_opt;
+
+        if (i > 0) {
+            attest_key.issuerSubjectName = make_name_from_str(sub + (char)(index - 1));
+            attest_key.keyBlob = key_blob_list[i - 1];
+            attest_key_opt = attest_key;
+        }
+
+        EXPECT_EQ(ErrorCode::OK,
+                  GenerateKey(AuthorizationSetBuilder()
+                                      .RsaSigningKey(2048, 65537)
+                                      .AttestKey()
+                                      .AttestationChallenge("foo")
+                                      .AttestationApplicationId("bar")
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                      .SetDefaultValidity(),
+                              attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
+                              &cert_chain_list[i]));
+
+        AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
+        AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
+        EXPECT_TRUE(verify_attestation_record("foo", "bar", sw_enforced, hw_enforced, SecLevel(),
+                                              cert_chain_list[i][0].encodedCertificate));
+
+        if (i > 0) {
+            /*
+             * The first key is attestated with factory chain, but all the rest of the keys are
+             * not supposed to be returned in attestation certificate chains.
+             */
+            EXPECT_FALSE(ChainSignaturesAreValid(cert_chain_list[i]));
+
+            // Appending the attest_key chain to the attested_key_chain should yield a valid chain.
+            cert_chain_list[i].insert(cert_chain_list[i].end(),        //
+                                      cert_chain_list[i - 1].begin(),  //
+                                      cert_chain_list[i - 1].end());
+        }
+
+        EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_list[i]));
+        EXPECT_GT(cert_chain_list[i].size(), i + 1);
+        verify_subject_and_serial(cert_chain_list[i][0], serial_int, subject, false);
+    }
+
+    for (int i = 0; i < chain_size; i++) {
+        CheckedDeleteKey(&key_blob_list[i]);
+    }
+}
+
+/*
+ * AttestKeyTest.EcAttestKeyChaining
+ *
+ * This test creates a chain of multiple Ec attest keys, each used to sign the next attest key,
+ * with the last attest key signed by the factory chain.
+ */
+TEST_P(AttestKeyTest, EcAttestKeyChaining) {
+    const int chain_size = 6;
+    vector<vector<uint8_t>> key_blob_list(chain_size);
+    vector<vector<Certificate>> cert_chain_list(chain_size);
+
+    for (int i = 0; i < chain_size; i++) {
+        string sub = "Ec attest key chaining ";
+        char index = '1' + i;
+        string subject = sub + index;
+        vector<uint8_t> subject_der(make_name_from_str(subject));
+
+        uint64_t serial_int = 800000 + i;
+        vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+        vector<KeyCharacteristics> attested_key_characteristics;
+        AttestationKey attest_key;
+        optional<AttestationKey> attest_key_opt;
+
+        if (i > 0) {
+            attest_key.issuerSubjectName = make_name_from_str(sub + (char)(index - 1));
+            attest_key.keyBlob = key_blob_list[i - 1];
+            attest_key_opt = attest_key;
+        }
+
+        EXPECT_EQ(ErrorCode::OK,
+                  GenerateKey(AuthorizationSetBuilder()
+                                      .EcdsaSigningKey(224)
+                                      .AttestKey()
+                                      .AttestationChallenge("foo")
+                                      .AttestationApplicationId("bar")
+                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .SetDefaultValidity(),
+                              attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
+                              &cert_chain_list[i]));
+
+        AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
+        AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
+        EXPECT_TRUE(verify_attestation_record("foo", "bar", sw_enforced, hw_enforced, SecLevel(),
+                                              cert_chain_list[i][0].encodedCertificate));
+
+        if (i > 0) {
+            /*
+             * The first key is attestated with factory chain, but all the rest of the keys are
+             * not supposed to be returned in attestation certificate chains.
+             */
+            EXPECT_FALSE(ChainSignaturesAreValid(cert_chain_list[i]));
+
+            // Appending the attest_key chain to the attested_key_chain should yield a valid chain.
+            cert_chain_list[i].insert(cert_chain_list[i].end(),        //
+                                      cert_chain_list[i - 1].begin(),  //
+                                      cert_chain_list[i - 1].end());
+        }
+
+        EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_list[i]));
+        EXPECT_GT(cert_chain_list[i].size(), i + 1);
+        verify_subject_and_serial(cert_chain_list[i][0], serial_int, subject, false);
+    }
+
+    for (int i = 0; i < chain_size; i++) {
+        CheckedDeleteKey(&key_blob_list[i]);
+    }
+}
+
+/*
+ * AttestKeyTest.AlternateAttestKeyChaining
+ *
+ * This test creates a chain of multiple attest keys, in the order Ec - RSA - Ec - RSA ....
+ * Each attest key is used to sign the next attest key, with the last attest key signed by
+ * the factory chain. This is to verify different algorithms of attest keys can
+ * cross sign each other and be chained together.
+ */
+TEST_P(AttestKeyTest, AlternateAttestKeyChaining) {
+    const int chain_size = 6;
+    vector<vector<uint8_t>> key_blob_list(chain_size);
+    vector<vector<Certificate>> cert_chain_list(chain_size);
+
+    for (int i = 0; i < chain_size; i++) {
+        string sub = "Alt attest key chaining ";
+        char index = '1' + i;
+        string subject = sub + index;
+        vector<uint8_t> subject_der(make_name_from_str(subject));
+
+        uint64_t serial_int = 90000000 + i;
+        vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+        vector<KeyCharacteristics> attested_key_characteristics;
+        AttestationKey attest_key;
+        optional<AttestationKey> attest_key_opt;
+
+        if (i > 0) {
+            attest_key.issuerSubjectName = make_name_from_str(sub + (char)(index - 1));
+            attest_key.keyBlob = key_blob_list[i - 1];
+            attest_key_opt = attest_key;
+        }
+
+        if ((i & 0x1) == 1) {
+            EXPECT_EQ(ErrorCode::OK,
+                      GenerateKey(AuthorizationSetBuilder()
+                                          .EcdsaSigningKey(224)
+                                          .AttestKey()
+                                          .AttestationChallenge("foo")
+                                          .AttestationApplicationId("bar")
+                                          .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                          .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                          .Authorization(TAG_NO_AUTH_REQUIRED)
+                                          .SetDefaultValidity(),
+                                  attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
+                                  &cert_chain_list[i]));
+        } else {
+            EXPECT_EQ(ErrorCode::OK,
+                      GenerateKey(AuthorizationSetBuilder()
+                                          .RsaSigningKey(2048, 65537)
+                                          .AttestKey()
+                                          .AttestationChallenge("foo")
+                                          .AttestationApplicationId("bar")
+                                          .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                          .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                          .Authorization(TAG_NO_AUTH_REQUIRED)
+                                          .SetDefaultValidity(),
+                                  attest_key_opt, &key_blob_list[i], &attested_key_characteristics,
+                                  &cert_chain_list[i]));
+        }
+
+        AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
+        AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
+        EXPECT_TRUE(verify_attestation_record("foo", "bar", sw_enforced, hw_enforced, SecLevel(),
+                                              cert_chain_list[i][0].encodedCertificate));
+
+        if (i > 0) {
+            /*
+             * The first key is attestated with factory chain, but all the rest of the keys are
+             * not supposed to be returned in attestation certificate chains.
+             */
+            EXPECT_FALSE(ChainSignaturesAreValid(cert_chain_list[i]));
+
+            // Appending the attest_key chain to the attested_key_chain should yield a valid chain.
+            cert_chain_list[i].insert(cert_chain_list[i].end(),        //
+                                      cert_chain_list[i - 1].begin(),  //
+                                      cert_chain_list[i - 1].end());
+        }
+
+        EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_list[i]));
+        EXPECT_GT(cert_chain_list[i].size(), i + 1);
+        verify_subject_and_serial(cert_chain_list[i][0], serial_int, subject, false);
+    }
+
+    for (int i = 0; i < chain_size; i++) {
+        CheckedDeleteKey(&key_blob_list[i]);
+    }
+}
+
 TEST_P(AttestKeyTest, AllEcCurves) {
     for (auto curve : ValidCurves()) {
         /*
diff --git a/security/keymint/aidl/vts/functional/DeviceUniqueAttestationTest.cpp b/security/keymint/aidl/vts/functional/DeviceUniqueAttestationTest.cpp
new file mode 100644
index 0000000..7009c6e
--- /dev/null
+++ b/security/keymint/aidl/vts/functional/DeviceUniqueAttestationTest.cpp
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "keymint_1_attest_key_test"
+
+#include <cutils/log.h>
+#include <cutils/properties.h>
+#include <keymint_support/key_param_output.h>
+#include <keymint_support/openssl_utils.h>
+
+#include "KeyMintAidlTestBase.h"
+
+namespace aidl::android::hardware::security::keymint::test {
+
+class DeviceUniqueAttestationTest : public KeyMintAidlTestBase {
+  protected:
+    void CheckUniqueAttestationResults(const vector<uint8_t>& key_blob,
+                                       const vector<KeyCharacteristics>& key_characteristics,
+                                       const AuthorizationSet& hw_enforced, int key_size) {
+        ASSERT_GT(cert_chain_.size(), 0);
+
+        if (KeyMintAidlTestBase::dump_Attestations) {
+            std::cout << bin2hex(cert_chain_[0].encodedCertificate) << std::endl;
+        }
+
+        ASSERT_GT(key_blob.size(), 0U);
+
+        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+
+        EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size)) << "Key size missing";
+
+        EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
+        ASSERT_GT(cert_chain_.size(), 0);
+
+        AuthorizationSet sw_enforced = SwEnforcedAuthorizations(key_characteristics);
+        EXPECT_TRUE(verify_attestation_record("challenge", "foo", sw_enforced, hw_enforced,
+                                              SecLevel(), cert_chain_[0].encodedCertificate));
+    }
+};
+
+/*
+ * DeviceUniqueAttestationTest.RsaNonStrongBoxUnimplemented
+ *
+ * Verifies that non strongbox implementations do not implement Rsa device unique
+ * attestation.
+ */
+TEST_P(DeviceUniqueAttestationTest, RsaNonStrongBoxUnimplemented) {
+    if (SecLevel() == SecurityLevel::STRONGBOX) return;
+
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+
+    // Check RSA implementation
+    auto result = GenerateKey(AuthorizationSetBuilder()
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .RsaSigningKey(2048, 65537)
+                                      .Digest(Digest::SHA_2_256)
+                                      .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)
+                                      .Authorization(TAG_INCLUDE_UNIQUE_ID)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .AttestationChallenge("challenge")
+                                      .AttestationApplicationId("foo")
+                                      .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION),
+                              &key_blob, &key_characteristics);
+
+    ASSERT_TRUE(result == ErrorCode::UNSUPPORTED_TAG);
+}
+
+/*
+ * DeviceUniqueAttestationTest.EcdsaNonStrongBoxUnimplemented
+ *
+ * Verifies that non strongbox implementations do not implement Ecdsa device unique
+ * attestation.
+ */
+TEST_P(DeviceUniqueAttestationTest, EcdsaNonStrongBoxUnimplemented) {
+    if (SecLevel() == SecurityLevel::STRONGBOX) return;
+
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+
+    // Check Ecdsa implementation
+    auto result = GenerateKey(AuthorizationSetBuilder()
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .EcdsaSigningKey(EcCurve::P_256)
+                                      .Digest(Digest::SHA_2_256)
+                                      .Authorization(TAG_INCLUDE_UNIQUE_ID)
+                                      .AttestationChallenge("challenge")
+                                      .AttestationApplicationId("foo")
+                                      .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION),
+                              &key_blob, &key_characteristics);
+
+    ASSERT_TRUE(result == ErrorCode::UNSUPPORTED_TAG);
+}
+
+/*
+ * DeviceUniqueAttestationTest.RsaDeviceUniqueAttestation
+ *
+ * Verifies that strongbox implementations of Rsa implements device unique
+ * attestation correctly, if implemented.
+ */
+TEST_P(DeviceUniqueAttestationTest, RsaDeviceUniqueAttestation) {
+    if (SecLevel() != SecurityLevel::STRONGBOX) return;
+
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+    int key_size = 2048;
+
+    auto result = GenerateKey(AuthorizationSetBuilder()
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .RsaSigningKey(key_size, 65537)
+                                      .Digest(Digest::SHA_2_256)
+                                      .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)
+                                      .Authorization(TAG_INCLUDE_UNIQUE_ID)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .AttestationChallenge("challenge")
+                                      .AttestationApplicationId("foo")
+                                      .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION),
+                              &key_blob, &key_characteristics);
+
+    // It is optional for Strong box to support DeviceUniqueAttestation.
+    if (result == ErrorCode::CANNOT_ATTEST_IDS) return;
+
+    ASSERT_EQ(ErrorCode::OK, result);
+
+    AuthorizationSet hw_enforced = AuthorizationSetBuilder()
+                                           .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION)
+                                           .Authorization(TAG_NO_AUTH_REQUIRED)
+                                           .RsaSigningKey(2048, 65537)
+                                           .Digest(Digest::SHA_2_256)
+                                           .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)
+                                           .Authorization(TAG_ORIGIN, KeyOrigin::GENERATED)
+                                           .Authorization(TAG_OS_VERSION, os_version())
+                                           .Authorization(TAG_OS_PATCHLEVEL, os_patch_level());
+
+    CheckUniqueAttestationResults(key_blob, key_characteristics, hw_enforced, key_size);
+}
+
+/*
+ * DeviceUniqueAttestationTest.EcdsaDeviceUniqueAttestation
+ *
+ * Verifies that strongbox implementations of Rsa implements device unique
+ * attestation correctly, if implemented.
+ */
+TEST_P(DeviceUniqueAttestationTest, EcdsaDeviceUniqueAttestation) {
+    if (SecLevel() != SecurityLevel::STRONGBOX) return;
+
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+    int key_size = 256;
+
+    auto result = GenerateKey(AuthorizationSetBuilder()
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .EcdsaSigningKey(256)
+                                      .Digest(Digest::SHA_2_256)
+                                      .Authorization(TAG_INCLUDE_UNIQUE_ID)
+                                      .AttestationChallenge("challenge")
+                                      .AttestationApplicationId("foo")
+                                      .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION),
+                              &key_blob, &key_characteristics);
+
+    // It is optional for Strong box to support DeviceUniqueAttestation.
+    if (result == ErrorCode::CANNOT_ATTEST_IDS) return;
+    ASSERT_EQ(ErrorCode::OK, result);
+
+    AuthorizationSet hw_enforced = AuthorizationSetBuilder()
+                                           .Authorization(TAG_DEVICE_UNIQUE_ATTESTATION)
+                                           .Authorization(TAG_NO_AUTH_REQUIRED)
+                                           .EcdsaSigningKey(EcCurve::P_256)
+                                           .Digest(Digest::SHA_2_256)
+                                           .Authorization(TAG_EC_CURVE, EcCurve::P_256)
+                                           .Authorization(TAG_ORIGIN, KeyOrigin::GENERATED)
+                                           .Authorization(TAG_OS_VERSION, os_version())
+                                           .Authorization(TAG_OS_PATCHLEVEL, os_patch_level());
+
+    CheckUniqueAttestationResults(key_blob, key_characteristics, hw_enforced, key_size);
+}
+
+INSTANTIATE_KEYMINT_AIDL_TEST(DeviceUniqueAttestationTest);
+
+}  // namespace aidl::android::hardware::security::keymint::test
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
index ce6f67a..61f2f77 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
@@ -22,9 +22,13 @@
 
 #include <android-base/logging.h>
 #include <android/binder_manager.h>
+#include <cppbor_parse.h>
 #include <cutils/properties.h>
+#include <gmock/gmock.h>
 #include <openssl/mem.h>
+#include <remote_prov/remote_prov_utils.h>
 
+#include <keymaster/cppcose/cppcose.h>
 #include <keymint_support/attestation_record.h>
 #include <keymint_support/key_param_output.h>
 #include <keymint_support/keymint_utils.h>
@@ -32,6 +36,7 @@
 
 namespace aidl::android::hardware::security::keymint {
 
+using namespace cppcose;
 using namespace std::literals::chrono_literals;
 using std::endl;
 using std::optional;
@@ -39,6 +44,7 @@
 using ::testing::AssertionFailure;
 using ::testing::AssertionResult;
 using ::testing::AssertionSuccess;
+using ::testing::MatchesRegex;
 
 ::std::ostream& operator<<(::std::ostream& os, const AuthorizationSet& set) {
     if (set.size() == 0)
@@ -113,7 +119,6 @@
 // Attestations don't contain everything in key authorization lists, so we need to filter the key
 // lists to produce the lists that we expect to match the attestations.
 auto kTagsToFilter = {
-        Tag::BLOB_USAGE_REQUIREMENTS,  //
         Tag::CREATION_DATETIME,        //
         Tag::EC_CURVE,
         Tag::HARDWARE_TYPE,
@@ -342,7 +347,7 @@
     SCOPED_TRACE("Begin");
     Status result;
     BeginResult out;
-    result = keymint_->begin(purpose, key_blob, in_params.vector_data(), HardwareAuthToken(), &out);
+    result = keymint_->begin(purpose, key_blob, in_params.vector_data(), std::nullopt, &out);
 
     if (result.isOk()) {
         *out_params = out.params;
@@ -360,7 +365,7 @@
     Status result;
     BeginResult out;
 
-    result = keymint_->begin(purpose, key_blob, in_params.vector_data(), HardwareAuthToken(), &out);
+    result = keymint_->begin(purpose, key_blob, in_params.vector_data(), std::nullopt, &out);
 
     if (result.isOk()) {
         *out_params = out.params;
@@ -839,6 +844,66 @@
     return result;
 }
 
+void verify_serial(X509* cert, const uint64_t expected_serial) {
+    BIGNUM_Ptr ser(BN_new());
+    EXPECT_TRUE(ASN1_INTEGER_to_BN(X509_get_serialNumber(cert), ser.get()));
+
+    uint64_t serial;
+    EXPECT_TRUE(BN_get_u64(ser.get(), &serial));
+    EXPECT_EQ(serial, expected_serial);
+}
+
+// Please set self_signed to true for fake certificates or self signed
+// certificates
+void verify_subject(const X509* cert,       //
+                    const string& subject,  //
+                    bool self_signed) {
+    char* cert_issuer =  //
+            X509_NAME_oneline(X509_get_issuer_name(cert), nullptr, 0);
+
+    char* cert_subj = X509_NAME_oneline(X509_get_subject_name(cert), nullptr, 0);
+
+    string expected_subject("/CN=");
+    if (subject.empty()) {
+        expected_subject.append("Android Keystore Key");
+    } else {
+        expected_subject.append(subject);
+    }
+
+    EXPECT_STREQ(expected_subject.c_str(), cert_subj) << "Cert has wrong subject." << cert_subj;
+
+    if (self_signed) {
+        EXPECT_STREQ(cert_issuer, cert_subj)
+                << "Cert issuer and subject mismatch for self signed certificate.";
+    }
+
+    OPENSSL_free(cert_subj);
+    OPENSSL_free(cert_issuer);
+}
+
+vector<uint8_t> build_serial_blob(const uint64_t serial_int) {
+    BIGNUM_Ptr serial(BN_new());
+    EXPECT_TRUE(BN_set_u64(serial.get(), serial_int));
+
+    int len = BN_num_bytes(serial.get());
+    vector<uint8_t> serial_blob(len);
+    if (BN_bn2bin(serial.get(), serial_blob.data()) != len) {
+        return {};
+    }
+
+    return serial_blob;
+}
+
+void verify_subject_and_serial(const Certificate& certificate,  //
+                               const uint64_t expected_serial,  //
+                               const string& subject, bool self_signed) {
+    X509_Ptr cert(parse_cert_blob(certificate.encodedCertificate));
+    ASSERT_TRUE(!!cert.get());
+
+    verify_serial(cert.get(), expected_serial);
+    verify_subject(cert.get(), subject, self_signed);
+}
+
 bool verify_attestation_record(const string& challenge,                //
                                const string& app_id,                   //
                                AuthorizationSet expected_sw_enforced,  //
@@ -876,17 +941,21 @@
     EXPECT_EQ(ErrorCode::OK, error);
     if (error != ErrorCode::OK) return false;
 
-    EXPECT_GE(att_attestation_version, 3U);
+    EXPECT_EQ(att_attestation_version, 100U);
+    vector<uint8_t> appId(app_id.begin(), app_id.end());
 
-    expected_sw_enforced.push_back(TAG_ATTESTATION_APPLICATION_ID,
-                                   vector<uint8_t>(app_id.begin(), app_id.end()));
+    // check challenge and app id only if we expects a non-fake certificate
+    if (challenge.length() > 0) {
+        EXPECT_EQ(challenge.length(), att_challenge.size());
+        EXPECT_EQ(0, memcmp(challenge.data(), att_challenge.data(), challenge.length()));
 
-    EXPECT_GE(att_keymaster_version, 4U);
+        expected_sw_enforced.push_back(TAG_ATTESTATION_APPLICATION_ID, appId);
+    }
+
+    EXPECT_EQ(att_keymaster_version, 100U);
     EXPECT_EQ(security_level, att_keymaster_security_level);
     EXPECT_EQ(security_level, att_attestation_security_level);
 
-    EXPECT_EQ(challenge.length(), att_challenge.size());
-    EXPECT_EQ(0, memcmp(challenge.data(), att_challenge.data(), challenge.length()));
 
     char property_value[PROPERTY_VALUE_MAX] = {};
     // TODO(b/136282179): When running under VTS-on-GSI the TEE-backed
@@ -897,7 +966,7 @@
             if (att_hw_enforced[i].tag == TAG_BOOT_PATCHLEVEL ||
                 att_hw_enforced[i].tag == TAG_VENDOR_PATCHLEVEL) {
                 std::string date =
-                        std::to_string(att_hw_enforced[i].value.get<KeyParameterValue::dateTime>());
+                        std::to_string(att_hw_enforced[i].value.get<KeyParameterValue::integer>());
                 // strptime seems to require delimiters, but the tag value will
                 // be YYYYMMDD
                 date.insert(6, "-");
@@ -1072,17 +1141,10 @@
         string cert_issuer = x509NameToStr(X509_get_issuer_name(key_cert.get()));
         string signer_subj = x509NameToStr(X509_get_subject_name(signing_cert.get()));
         if (cert_issuer != signer_subj) {
-            return AssertionFailure() << "Cert " << i << " has wrong issuer.\n" << cert_data.str();
-        }
-
-        if (i == 0) {
-            string cert_sub = x509NameToStr(X509_get_subject_name(key_cert.get()));
-            if ("/CN=Android Keystore Key" != cert_sub) {
-                return AssertionFailure()
-                       << "Leaf cert has wrong subject, should be CN=Android Keystore Key, was "
-                       << cert_sub << '\n'
-                       << cert_data.str();
-            }
+            return AssertionFailure() << "Cert " << i << " has wrong issuer.\n"
+                                      << " Signer subject is " << signer_subj
+                                      << " Issuer subject is " << cert_issuer << endl
+                                      << cert_data.str();
         }
     }
 
@@ -1118,6 +1180,121 @@
     return retval;
 }
 
+namespace {
+
+void check_cose_key(const vector<uint8_t>& data, bool testMode) {
+    auto [parsedPayload, __, payloadParseErr] = cppbor::parse(data);
+    ASSERT_TRUE(parsedPayload) << "Key parse failed: " << payloadParseErr;
+
+    // The following check assumes that canonical CBOR encoding is used for the COSE_Key.
+    if (testMode) {
+        EXPECT_THAT(cppbor::prettyPrint(parsedPayload.get()),
+                    MatchesRegex("{\n"
+                                 "  1 : 2,\n"   // kty: EC2
+                                 "  3 : -7,\n"  // alg: ES256
+                                 "  -1 : 1,\n"  // EC id: P256
+                                 // The regex {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}} matches a
+                                 // sequence of 32 hexadecimal bytes, enclosed in braces and
+                                 // separated by commas. In this case, some Ed25519 public key.
+                                 "  -2 : {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}},\n"  // pub_x: data
+                                 "  -3 : {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}},\n"  // pub_y: data
+                                 "  -70000 : null,\n"                              // test marker
+                                 "}"));
+    } else {
+        EXPECT_THAT(cppbor::prettyPrint(parsedPayload.get()),
+                    MatchesRegex("{\n"
+                                 "  1 : 2,\n"   // kty: EC2
+                                 "  3 : -7,\n"  // alg: ES256
+                                 "  -1 : 1,\n"  // EC id: P256
+                                 // The regex {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}} matches a
+                                 // sequence of 32 hexadecimal bytes, enclosed in braces and
+                                 // separated by commas. In this case, some Ed25519 public key.
+                                 "  -2 : {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}},\n"  // pub_x: data
+                                 "  -3 : {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}},\n"  // pub_y: data
+                                 "}"));
+    }
+}
+
+}  // namespace
+
+void check_maced_pubkey(const MacedPublicKey& macedPubKey, bool testMode,
+                        vector<uint8_t>* payload_value) {
+    auto [coseMac0, _, mac0ParseErr] = cppbor::parse(macedPubKey.macedKey);
+    ASSERT_TRUE(coseMac0) << "COSE Mac0 parse failed " << mac0ParseErr;
+
+    ASSERT_NE(coseMac0->asArray(), nullptr);
+    ASSERT_EQ(coseMac0->asArray()->size(), kCoseMac0EntryCount);
+
+    auto protParms = coseMac0->asArray()->get(kCoseMac0ProtectedParams)->asBstr();
+    ASSERT_NE(protParms, nullptr);
+
+    // Header label:value of 'alg': HMAC-256
+    ASSERT_EQ(cppbor::prettyPrint(protParms->value()), "{\n  1 : 5,\n}");
+
+    auto unprotParms = coseMac0->asArray()->get(kCoseMac0UnprotectedParams)->asMap();
+    ASSERT_NE(unprotParms, nullptr);
+    ASSERT_EQ(unprotParms->size(), 0);
+
+    // The payload is a bstr holding an encoded COSE_Key
+    auto payload = coseMac0->asArray()->get(kCoseMac0Payload)->asBstr();
+    ASSERT_NE(payload, nullptr);
+    check_cose_key(payload->value(), testMode);
+
+    auto coseMac0Tag = coseMac0->asArray()->get(kCoseMac0Tag)->asBstr();
+    ASSERT_TRUE(coseMac0Tag);
+    auto extractedTag = coseMac0Tag->value();
+    EXPECT_EQ(extractedTag.size(), 32U);
+
+    // Compare with tag generated with kTestMacKey.  Should only match in test mode
+    auto testTag = cppcose::generateCoseMac0Mac(remote_prov::kTestMacKey, {} /* external_aad */,
+                                                payload->value());
+    ASSERT_TRUE(testTag) << "Tag calculation failed: " << testTag.message();
+
+    if (testMode) {
+        EXPECT_EQ(*testTag, extractedTag);
+    } else {
+        EXPECT_NE(*testTag, extractedTag);
+    }
+    if (payload_value != nullptr) {
+        *payload_value = payload->value();
+    }
+}
+
+void p256_pub_key(const vector<uint8_t>& coseKeyData, EVP_PKEY_Ptr* signingKey) {
+    // Extract x and y affine coordinates from the encoded Cose_Key.
+    auto [parsedPayload, __, payloadParseErr] = cppbor::parse(coseKeyData);
+    ASSERT_TRUE(parsedPayload) << "Key parse failed: " << payloadParseErr;
+    auto coseKey = parsedPayload->asMap();
+    const std::unique_ptr<cppbor::Item>& xItem = coseKey->get(cppcose::CoseKey::PUBKEY_X);
+    ASSERT_NE(xItem->asBstr(), nullptr);
+    vector<uint8_t> x = xItem->asBstr()->value();
+    const std::unique_ptr<cppbor::Item>& yItem = coseKey->get(cppcose::CoseKey::PUBKEY_Y);
+    ASSERT_NE(yItem->asBstr(), nullptr);
+    vector<uint8_t> y = yItem->asBstr()->value();
+
+    // Concatenate: 0x04 (uncompressed form marker) | x | y
+    vector<uint8_t> pubKeyData{0x04};
+    pubKeyData.insert(pubKeyData.end(), x.begin(), x.end());
+    pubKeyData.insert(pubKeyData.end(), y.begin(), y.end());
+
+    EC_KEY_Ptr ecKey = EC_KEY_Ptr(EC_KEY_new());
+    ASSERT_NE(ecKey, nullptr);
+    EC_GROUP_Ptr group = EC_GROUP_Ptr(EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1));
+    ASSERT_NE(group, nullptr);
+    ASSERT_EQ(EC_KEY_set_group(ecKey.get(), group.get()), 1);
+    EC_POINT_Ptr point = EC_POINT_Ptr(EC_POINT_new(group.get()));
+    ASSERT_NE(point, nullptr);
+    ASSERT_EQ(EC_POINT_oct2point(group.get(), point.get(), pubKeyData.data(), pubKeyData.size(),
+                                 nullptr),
+              1);
+    ASSERT_EQ(EC_KEY_set_public_key(ecKey.get(), point.get()), 1);
+
+    EVP_PKEY_Ptr pubKey = EVP_PKEY_Ptr(EVP_PKEY_new());
+    ASSERT_NE(pubKey, nullptr);
+    EVP_PKEY_assign_EC_KEY(pubKey.get(), ecKey.release());
+    *signingKey = std::move(pubKey);
+}
+
 }  // namespace test
 
 }  // namespace aidl::android::hardware::security::keymint
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
index 4d97ea9..75a4418 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
@@ -25,6 +25,7 @@
 
 #include <aidl/android/hardware/security/keymint/ErrorCode.h>
 #include <aidl/android/hardware/security/keymint/IKeyMintDevice.h>
+#include <aidl/android/hardware/security/keymint/MacedPublicKey.h>
 
 #include <keymint_support/authorization_set.h>
 #include <keymint_support/openssl_utils.h>
@@ -268,15 +269,27 @@
     long challenge_;
 };
 
+vector<uint8_t> build_serial_blob(const uint64_t serial_int);
+void verify_subject(const X509* cert, const string& subject, bool self_signed);
+void verify_serial(X509* cert, const uint64_t expected_serial);
+void verify_subject_and_serial(const Certificate& certificate,  //
+                               const uint64_t expected_serial,  //
+                               const string& subject, bool self_signed);
+
 bool verify_attestation_record(const string& challenge,                //
                                const string& app_id,                   //
                                AuthorizationSet expected_sw_enforced,  //
                                AuthorizationSet expected_hw_enforced,  //
                                SecurityLevel security_level,
                                const vector<uint8_t>& attestation_cert);
+
 string bin2hex(const vector<uint8_t>& data);
 X509_Ptr parse_cert_blob(const vector<uint8_t>& blob);
 vector<uint8_t> make_name_from_str(const string& name);
+void check_maced_pubkey(const MacedPublicKey& macedPubKey, bool testMode,
+                        vector<uint8_t>* payload_value);
+void p256_pub_key(const vector<uint8_t>& coseKeyData, EVP_PKEY_Ptr* signingKey);
+
 AuthorizationSet HwEnforcedAuthorizations(const vector<KeyCharacteristics>& key_characteristics);
 AuthorizationSet SwEnforcedAuthorizations(const vector<KeyCharacteristics>& key_characteristics);
 ::testing::AssertionResult ChainSignaturesAreValid(const vector<Certificate>& chain);
diff --git a/security/keymint/aidl/vts/functional/KeyMintTest.cpp b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
index 7ecfa37..a89cc5b 100644
--- a/security/keymint/aidl/vts/functional/KeyMintTest.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
@@ -27,6 +27,9 @@
 
 #include <cutils/properties.h>
 
+#include <android/binder_manager.h>
+
+#include <aidl/android/hardware/security/keymint/IRemotelyProvisionedComponent.h>
 #include <aidl/android/hardware/security/keymint/KeyFormat.h>
 
 #include <keymint_support/key_param_output.h>
@@ -134,6 +137,54 @@
                 "d5f33645e8ed8b4a1cb3cc4a1d67987399f2a09f5b3fb68c88d5e5d90ac3"
                 "3492d6");
 
+/*
+ * DER-encoded PKCS#8 format RSA key. Generated using:
+ *
+ * openssl genrsa 2048 | openssl pkcs8 -topk8 -nocrypt -outform der | hexdump -e '30/1  "%02X" "\n"'
+ */
+string rsa_2048_key =
+        hex2str("308204BD020100300D06092A864886F70D0101010500048204A7308204A3"
+                "0201000282010100BEBC342B56D443B1299F9A6A7056E80A897E318476A5"
+                "A18029E63B2ED739A61791D339F58DC763D9D14911F2EDEC383DEE11F631"
+                "9B44510E7A3ECD9B79B97382E49500ACF8117DC89CAF0E621F77756554A2"
+                "FD4664BFE7AB8B59AB48340DBFA27B93B5A81F6ECDEB02D0759307128DF3"
+                "E3BAD4055C8B840216DFAA5700670E6C5126F0962FCB70FF308F25049164"
+                "CCF76CC2DA66A7DD9A81A714C2809D69186133D29D84568E892B6FFBF319"
+                "9BDB14383EE224407F190358F111A949552ABA6714227D1BD7F6B20DD0CB"
+                "88F9467B719339F33BFF35B3870B3F62204E4286B0948EA348B524544B5F"
+                "9838F29EE643B079EEF8A713B220D7806924CDF7295070C5020301000102"
+                "82010069F377F35F2F584EF075353CCD1CA99738DB3DBC7C7FF35F9366CE"
+                "176DFD1B135AB10030344ABF5FBECF1D4659FDEF1C0FC430834BE1BE3911"
+                "951377BB3D563A2EA9CA8F4AD9C48A8CE6FD516A735C662686C7B4B3C09A"
+                "7B8354133E6F93F790D59EAEB92E84C9A4339302CCE28FDF04CCCAFA7DE3"
+                "F3A827D4F6F7D38E68B0EC6AB706645BF074A4E4090D06FB163124365FD5"
+                "EE7A20D350E9958CC30D91326E1B292E9EF5DB408EC42DAF737D20149704"
+                "D0A678A0FB5B5446863B099228A352D604BA8091A164D01D5AB05397C71E"
+                "AD20BE2A08FC528FE442817809C787FEE4AB97F97B9130D022153EDC6EB6"
+                "CBE7B0F8E3473F2E901209B5DB10F93604DB0102818100E83C0998214941"
+                "EA4F9293F1B77E2E99E6CF305FAF358238E126124FEAF2EB9724B2EA7B78"
+                "E6032343821A80E55D1D88FB12D220C3F41A56142FEC85796D1917F1E8C7"
+                "74F142B67D3D6E7B7E6B4383E94DB5929089DBB346D5BDAB40CC2D96EE04"
+                "09475E175C63BF78CFD744136740838127EA723FF3FE7FA368C1311B4A4E"
+                "0502818100D240FCC0F5D7715CDE21CB2DC86EA146132EA3B06F61FF2AF5"
+                "4BF38473F59DADCCE32B5F4CC32DD0BA6F509347B4B5B1B58C39F95E4798"
+                "CCBB43E83D0119ACF532F359CA743C85199F0286610E200997D731291717"
+                "9AC9B67558773212EC961E8BCE7A3CC809BC5486A96E4B0E6AF394D94E06"
+                "6A0900B7B70E82A44FB30053C102818100AD15DA1CBD6A492B66851BA8C3"
+                "16D38AB700E2CFDDD926A658003513C54BAA152B30021D667D20078F500F"
+                "8AD3E7F3945D74A891ED1A28EAD0FEEAEC8C14A8E834CF46A13D1378C99D"
+                "18940823CFDD27EC5810D59339E0C34198AC638E09C87CBB1B634A9864AE"
+                "9F4D5EB2D53514F67B4CAEC048C8AB849A02E397618F3271350281801FA2"
+                "C1A5331880A92D8F3E281C617108BF38244F16E352E69ED417C7153F9EC3"
+                "18F211839C643DCF8B4DD67CE2AC312E95178D5D952F06B1BF779F491692"
+                "4B70F582A23F11304E02A5E7565AE22A35E74FECC8B6FDC93F92A1A37703"
+                "E4CF0E63783BD02EB716A7ECBBFA606B10B74D01579522E7EF84D91FC522"
+                "292108D902C1028180796FE3825F9DCC85DF22D58690065D93898ACD65C0"
+                "87BEA8DA3A63BF4549B795E2CD0E3BE08CDEBD9FCF1720D9CDC5070D74F4"
+                "0DED8E1102C52152A31B6165F83A6722AECFCC35A493D7634664B888A08D"
+                "3EB034F12EA28BFEE346E205D334827F778B16ED40872BD29FCB36536B6E"
+                "93FFB06778696B4A9D81BB0A9423E63DE5");
+
 string ec_256_key =
         hex2str("308187020100301306072a8648ce3d020106082a8648ce3d030107046d30"
                 "6b0201010420737c2ecd7b8d1940bf2930aa9b4ed3ff941eed09366bc032"
@@ -209,6 +260,32 @@
     string to_string() const { return string(reinterpret_cast<const char*>(data()), size()); }
 };
 
+string device_suffix(const string& name) {
+    size_t pos = name.find('/');
+    if (pos == string::npos) {
+        return name;
+    }
+    return name.substr(pos + 1);
+}
+
+bool matching_rp_instance(const string& km_name,
+                          std::shared_ptr<IRemotelyProvisionedComponent>* rp) {
+    string km_suffix = device_suffix(km_name);
+
+    vector<string> rp_names =
+            ::android::getAidlHalInstanceNames(IRemotelyProvisionedComponent::descriptor);
+    for (const string& rp_name : rp_names) {
+        // If the suffix of the RemotelyProvisionedComponent instance equals the suffix of the
+        // KeyMint instance, assume they match.
+        if (device_suffix(rp_name) == km_suffix && AServiceManager_isDeclared(rp_name.c_str())) {
+            ::ndk::SpAIBinder binder(AServiceManager_waitForService(rp_name.c_str()));
+            *rp = IRemotelyProvisionedComponent::fromBinder(binder);
+            return true;
+        }
+    }
+    return false;
+}
+
 }  // namespace
 
 class NewKeyGenerationTest : public KeyMintAidlTestBase {
@@ -282,21 +359,30 @@
  * have correct characteristics.
  */
 TEST_P(NewKeyGenerationTest, RsaWithAttestation) {
-    for (auto key_size : ValidKeySizes(Algorithm::RSA)) {
-        auto challenge = "hello";
-        auto app_id = "foo";
+    auto challenge = "hello";
+    auto app_id = "foo";
 
+    auto subject = "cert subj 2";
+    vector<uint8_t> subject_der(make_name_from_str(subject));
+
+    uint64_t serial_int = 66;
+    vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+    for (auto key_size : ValidKeySizes(Algorithm::RSA)) {
         vector<uint8_t> key_blob;
         vector<KeyCharacteristics> key_characteristics;
-        ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
-                                                     .RsaSigningKey(key_size, 65537)
-                                                     .Digest(Digest::NONE)
-                                                     .Padding(PaddingMode::NONE)
-                                                     .AttestationChallenge(challenge)
-                                                     .AttestationApplicationId(app_id)
-                                                     .Authorization(TAG_NO_AUTH_REQUIRED)
-                                                     .SetDefaultValidity(),
-                                             &key_blob, &key_characteristics));
+        ASSERT_EQ(ErrorCode::OK,
+                  GenerateKey(AuthorizationSetBuilder()
+                                      .RsaSigningKey(key_size, 65537)
+                                      .Digest(Digest::NONE)
+                                      .Padding(PaddingMode::NONE)
+                                      .AttestationChallenge(challenge)
+                                      .AttestationApplicationId(app_id)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                      .SetDefaultValidity(),
+                              &key_blob, &key_characteristics));
 
         ASSERT_GT(key_blob.size(), 0U);
         CheckBaseParams(key_characteristics);
@@ -308,6 +394,7 @@
                 << "Key size " << key_size << "missing";
         EXPECT_TRUE(crypto_params.Contains(TAG_RSA_PUBLIC_EXPONENT, 65537U));
 
+        verify_subject_and_serial(cert_chain_[0], serial_int, subject, false);
         EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
         ASSERT_GT(cert_chain_.size(), 0);
 
@@ -322,6 +409,264 @@
 }
 
 /*
+ * NewKeyGenerationTest.RsaWithRpkAttestation
+ *
+ * Verifies that keymint can generate all required RSA key sizes, using an attestation key
+ * that has been generated using an associate IRemotelyProvisionedComponent.
+ */
+TEST_P(NewKeyGenerationTest, RsaWithRpkAttestation) {
+    // There should be an IRemotelyProvisionedComponent instance associated with the KeyMint
+    // instance.
+    std::shared_ptr<IRemotelyProvisionedComponent> rp;
+    ASSERT_TRUE(matching_rp_instance(GetParam(), &rp))
+            << "No IRemotelyProvisionedComponent found that matches KeyMint device " << GetParam();
+
+    // Generate a P-256 keypair to use as an attestation key.
+    MacedPublicKey macedPubKey;
+    std::vector<uint8_t> privateKeyBlob;
+    auto status =
+            rp->generateEcdsaP256KeyPair(/* testMode= */ false, &macedPubKey, &privateKeyBlob);
+    ASSERT_TRUE(status.isOk());
+    vector<uint8_t> coseKeyData;
+    check_maced_pubkey(macedPubKey, /* testMode= */ false, &coseKeyData);
+
+    AttestationKey attestation_key;
+    attestation_key.keyBlob = std::move(privateKeyBlob);
+    attestation_key.issuerSubjectName = make_name_from_str("Android Keystore Key");
+
+    for (auto key_size : ValidKeySizes(Algorithm::RSA)) {
+        auto challenge = "hello";
+        auto app_id = "foo";
+
+        vector<uint8_t> key_blob;
+        vector<KeyCharacteristics> key_characteristics;
+        ASSERT_EQ(ErrorCode::OK,
+                  GenerateKey(AuthorizationSetBuilder()
+                                      .RsaSigningKey(key_size, 65537)
+                                      .Digest(Digest::NONE)
+                                      .Padding(PaddingMode::NONE)
+                                      .AttestationChallenge(challenge)
+                                      .AttestationApplicationId(app_id)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .SetDefaultValidity(),
+                              attestation_key, &key_blob, &key_characteristics, &cert_chain_));
+
+        ASSERT_GT(key_blob.size(), 0U);
+        CheckBaseParams(key_characteristics);
+
+        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+
+        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::RSA));
+        EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
+                << "Key size " << key_size << "missing";
+        EXPECT_TRUE(crypto_params.Contains(TAG_RSA_PUBLIC_EXPONENT, 65537U));
+
+        // Attestation by itself is not valid (last entry is not self-signed).
+        EXPECT_FALSE(ChainSignaturesAreValid(cert_chain_));
+
+        // The signature over the attested key should correspond to the P256 public key.
+        X509_Ptr key_cert(parse_cert_blob(cert_chain_[0].encodedCertificate));
+        ASSERT_TRUE(key_cert.get());
+        EVP_PKEY_Ptr signing_pubkey;
+        p256_pub_key(coseKeyData, &signing_pubkey);
+        ASSERT_TRUE(signing_pubkey.get());
+
+        ASSERT_TRUE(X509_verify(key_cert.get(), signing_pubkey.get()))
+                << "Verification of attested certificate failed "
+                << "OpenSSL error string: " << ERR_error_string(ERR_get_error(), NULL);
+
+        CheckedDeleteKey(&key_blob);
+    }
+}
+
+/*
+ * NewKeyGenerationTest.RsaEncryptionWithAttestation
+ *
+ * Verifies that keymint attestation for RSA encryption keys with challenge and
+ * app id is also successful.
+ */
+TEST_P(NewKeyGenerationTest, RsaEncryptionWithAttestation) {
+    auto key_size = 2048;
+    auto challenge = "hello";
+    auto app_id = "foo";
+
+    auto subject = "subj 2";
+    vector<uint8_t> subject_der(make_name_from_str(subject));
+
+    uint64_t serial_int = 111166;
+    vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+    ASSERT_EQ(ErrorCode::OK,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .RsaEncryptionKey(key_size, 65537)
+                                  .Padding(PaddingMode::NONE)
+                                  .AttestationChallenge(challenge)
+                                  .AttestationApplicationId(app_id)
+                                  .Authorization(TAG_NO_AUTH_REQUIRED)
+                                  .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                  .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                  .SetDefaultValidity(),
+                          &key_blob, &key_characteristics));
+
+    ASSERT_GT(key_blob.size(), 0U);
+    AuthorizationSet auths;
+    for (auto& entry : key_characteristics) {
+        auths.push_back(AuthorizationSet(entry.authorizations));
+    }
+
+    EXPECT_TRUE(auths.Contains(TAG_ORIGIN, KeyOrigin::GENERATED));
+    EXPECT_TRUE(auths.Contains(TAG_PURPOSE, KeyPurpose::DECRYPT));
+
+    // Verify that App data and ROT are NOT included.
+    EXPECT_FALSE(auths.Contains(TAG_ROOT_OF_TRUST));
+    EXPECT_FALSE(auths.Contains(TAG_APPLICATION_DATA));
+
+    // Check that some unexpected tags/values are NOT present.
+    EXPECT_FALSE(auths.Contains(TAG_PURPOSE, KeyPurpose::SIGN));
+    EXPECT_FALSE(auths.Contains(TAG_PURPOSE, KeyPurpose::VERIFY));
+
+    EXPECT_FALSE(auths.Contains(TAG_AUTH_TIMEOUT, 301U));
+
+    auto os_ver = auths.GetTagValue(TAG_OS_VERSION);
+    ASSERT_TRUE(os_ver);
+    EXPECT_EQ(*os_ver, os_version());
+
+    AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+
+    EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::RSA));
+    EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
+            << "Key size " << key_size << "missing";
+    EXPECT_TRUE(crypto_params.Contains(TAG_RSA_PUBLIC_EXPONENT, 65537U));
+
+    verify_subject_and_serial(cert_chain_[0], serial_int, subject, false);
+    EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
+    ASSERT_GT(cert_chain_.size(), 0);
+
+    AuthorizationSet hw_enforced = HwEnforcedAuthorizations(key_characteristics);
+    AuthorizationSet sw_enforced = SwEnforcedAuthorizations(key_characteristics);
+    EXPECT_TRUE(verify_attestation_record(challenge, app_id,  //
+                                          sw_enforced, hw_enforced, SecLevel(),
+                                          cert_chain_[0].encodedCertificate));
+
+    CheckedDeleteKey(&key_blob);
+}
+
+/*
+ * NewKeyGenerationTest.RsaWithSelfSign
+ *
+ * Verifies that attesting to RSA key generation is successful, and returns
+ * self signed certificate if no challenge is provided.  And signing etc
+ * works as expected.
+ */
+TEST_P(NewKeyGenerationTest, RsaWithSelfSign) {
+    auto subject = "cert subj subj subj subj subj subj 22222222222222222222";
+    vector<uint8_t> subject_der(make_name_from_str(subject));
+
+    uint64_t serial_int = 0;
+    vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+    for (auto key_size : ValidKeySizes(Algorithm::RSA)) {
+        vector<uint8_t> key_blob;
+        vector<KeyCharacteristics> key_characteristics;
+        ASSERT_EQ(ErrorCode::OK,
+                  GenerateKey(AuthorizationSetBuilder()
+                                      .RsaSigningKey(key_size, 65537)
+                                      .Digest(Digest::NONE)
+                                      .Padding(PaddingMode::NONE)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                      .SetDefaultValidity(),
+                              &key_blob, &key_characteristics));
+
+        ASSERT_GT(key_blob.size(), 0U);
+        CheckBaseParams(key_characteristics);
+
+        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+
+        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::RSA));
+        EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
+                << "Key size " << key_size << "missing";
+        EXPECT_TRUE(crypto_params.Contains(TAG_RSA_PUBLIC_EXPONENT, 65537U));
+
+        verify_subject_and_serial(cert_chain_[0], serial_int, subject, false);
+        EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
+        ASSERT_EQ(cert_chain_.size(), 1);
+
+        CheckedDeleteKey(&key_blob);
+    }
+}
+
+/*
+ * NewKeyGenerationTest.RsaWithAttestationMissAppId
+ *
+ * Verifies that attesting to RSA checks for missing app ID.
+ */
+TEST_P(NewKeyGenerationTest, RsaWithAttestationMissAppId) {
+    auto challenge = "hello";
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+
+    ASSERT_EQ(ErrorCode::ATTESTATION_APPLICATION_ID_MISSING,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .RsaSigningKey(2048, 65537)
+                                  .Digest(Digest::NONE)
+                                  .Padding(PaddingMode::NONE)
+                                  .AttestationChallenge(challenge)
+                                  .Authorization(TAG_NO_AUTH_REQUIRED)
+                                  .SetDefaultValidity(),
+                          &key_blob, &key_characteristics));
+}
+
+/*
+ * NewKeyGenerationTest.RsaWithAttestationAppIdIgnored
+ *
+ * Verifies that attesting to RSA ignores app id if challenge is missing.
+ */
+TEST_P(NewKeyGenerationTest, RsaWithAttestationAppIdIgnored) {
+    auto key_size = 2048;
+    auto app_id = "foo";
+
+    auto subject = "cert subj 2";
+    vector<uint8_t> subject_der(make_name_from_str(subject));
+
+    uint64_t serial_int = 1;
+    vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+    ASSERT_EQ(ErrorCode::OK,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .RsaSigningKey(key_size, 65537)
+                                  .Digest(Digest::NONE)
+                                  .Padding(PaddingMode::NONE)
+                                  .AttestationApplicationId(app_id)
+                                  .Authorization(TAG_NO_AUTH_REQUIRED)
+                                  .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                  .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                  .SetDefaultValidity(),
+                          &key_blob, &key_characteristics));
+
+    ASSERT_GT(key_blob.size(), 0U);
+    CheckBaseParams(key_characteristics);
+
+    AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+
+    EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::RSA));
+    EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
+            << "Key size " << key_size << "missing";
+    EXPECT_TRUE(crypto_params.Contains(TAG_RSA_PUBLIC_EXPONENT, 65537U));
+
+    verify_subject_and_serial(cert_chain_[0], serial_int, subject, false);
+    EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
+    ASSERT_EQ(cert_chain_.size(), 1);
+
+    CheckedDeleteKey(&key_blob);
+}
+
+/*
  * NewKeyGenerationTest.LimitedUsageRsa
  *
  * Verifies that KeyMint can generate all required RSA key sizes with limited usage, and that the
@@ -368,22 +713,31 @@
  * resulting keys have correct characteristics and attestation.
  */
 TEST_P(NewKeyGenerationTest, LimitedUsageRsaWithAttestation) {
-    for (auto key_size : ValidKeySizes(Algorithm::RSA)) {
-        auto challenge = "hello";
-        auto app_id = "foo";
+    auto challenge = "hello";
+    auto app_id = "foo";
 
+    auto subject = "cert subj 2";
+    vector<uint8_t> subject_der(make_name_from_str(subject));
+
+    uint64_t serial_int = 66;
+    vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+    for (auto key_size : ValidKeySizes(Algorithm::RSA)) {
         vector<uint8_t> key_blob;
         vector<KeyCharacteristics> key_characteristics;
-        ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
-                                                     .RsaSigningKey(key_size, 65537)
-                                                     .Digest(Digest::NONE)
-                                                     .Padding(PaddingMode::NONE)
-                                                     .AttestationChallenge(challenge)
-                                                     .AttestationApplicationId(app_id)
-                                                     .Authorization(TAG_NO_AUTH_REQUIRED)
-                                                     .Authorization(TAG_USAGE_COUNT_LIMIT, 1)
-                                                     .SetDefaultValidity(),
-                                             &key_blob, &key_characteristics));
+        ASSERT_EQ(ErrorCode::OK,
+                  GenerateKey(AuthorizationSetBuilder()
+                                      .RsaSigningKey(key_size, 65537)
+                                      .Digest(Digest::NONE)
+                                      .Padding(PaddingMode::NONE)
+                                      .AttestationChallenge(challenge)
+                                      .AttestationApplicationId(app_id)
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .Authorization(TAG_USAGE_COUNT_LIMIT, 1)
+                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                      .SetDefaultValidity(),
+                              &key_blob, &key_characteristics));
 
         ASSERT_GT(key_blob.size(), 0U);
         CheckBaseParams(key_characteristics);
@@ -406,6 +760,7 @@
         // Check the usage count limit tag also appears in the attestation.
         EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
         ASSERT_GT(cert_chain_.size(), 0);
+        verify_subject_and_serial(cert_chain_[0], serial_int, subject, false);
 
         AuthorizationSet hw_enforced = HwEnforcedAuthorizations(key_characteristics);
         AuthorizationSet sw_enforced = SwEnforcedAuthorizations(key_characteristics);
@@ -480,6 +835,208 @@
 }
 
 /*
+ * NewKeyGenerationTest.EcdsaAttestation
+ *
+ * Verifies that for all Ecdsa key sizes, if challenge and app id is provided,
+ * an attestation will be generated.
+ */
+TEST_P(NewKeyGenerationTest, EcdsaAttestation) {
+    auto challenge = "hello";
+    auto app_id = "foo";
+
+    auto subject = "cert subj 2";
+    vector<uint8_t> subject_der(make_name_from_str(subject));
+
+    uint64_t serial_int = 0xFFFFFFFFFFFFFFFF;
+    vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+    for (auto key_size : ValidKeySizes(Algorithm::EC)) {
+        vector<uint8_t> key_blob;
+        vector<KeyCharacteristics> key_characteristics;
+        ASSERT_EQ(ErrorCode::OK,
+                  GenerateKey(AuthorizationSetBuilder()
+                                      .Authorization(TAG_NO_AUTH_REQUIRED)
+                                      .EcdsaSigningKey(key_size)
+                                      .Digest(Digest::NONE)
+                                      .AttestationChallenge(challenge)
+                                      .AttestationApplicationId(app_id)
+                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                      .SetDefaultValidity(),
+                              &key_blob, &key_characteristics));
+        ASSERT_GT(key_blob.size(), 0U);
+        CheckBaseParams(key_characteristics);
+
+        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+
+        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::EC));
+        EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
+                << "Key size " << key_size << "missing";
+
+        EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
+        ASSERT_GT(cert_chain_.size(), 0);
+        verify_subject_and_serial(cert_chain_[0], serial_int, subject, false);
+
+        AuthorizationSet hw_enforced = HwEnforcedAuthorizations(key_characteristics);
+        AuthorizationSet sw_enforced = SwEnforcedAuthorizations(key_characteristics);
+        EXPECT_TRUE(verify_attestation_record(challenge, app_id,  //
+                                              sw_enforced, hw_enforced, SecLevel(),
+                                              cert_chain_[0].encodedCertificate));
+
+        CheckedDeleteKey(&key_blob);
+    }
+}
+
+/*
+ * NewKeyGenerationTest.EcdsaSelfSignAttestation
+ *
+ * Verifies that if no challenge is provided to an Ecdsa key generation, then
+ * the key will generate a self signed attestation.
+ */
+TEST_P(NewKeyGenerationTest, EcdsaSelfSignAttestation) {
+    auto subject = "cert subj 2";
+    vector<uint8_t> subject_der(make_name_from_str(subject));
+
+    uint64_t serial_int = 0x123456FFF1234;
+    vector<uint8_t> serial_blob(build_serial_blob(serial_int));
+
+    for (auto key_size : ValidKeySizes(Algorithm::EC)) {
+        vector<uint8_t> key_blob;
+        vector<KeyCharacteristics> key_characteristics;
+        ASSERT_EQ(ErrorCode::OK,
+                  GenerateKey(AuthorizationSetBuilder()
+                                      .EcdsaSigningKey(key_size)
+                                      .Digest(Digest::NONE)
+                                      .Authorization(TAG_CERTIFICATE_SERIAL, serial_blob)
+                                      .Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
+                                      .SetDefaultValidity(),
+                              &key_blob, &key_characteristics));
+        ASSERT_GT(key_blob.size(), 0U);
+        CheckBaseParams(key_characteristics);
+
+        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+
+        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::EC));
+        EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
+                << "Key size " << key_size << "missing";
+
+        EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
+        verify_subject_and_serial(cert_chain_[0], serial_int, subject, false);
+        ASSERT_EQ(cert_chain_.size(), 1);
+
+        AuthorizationSet hw_enforced = HwEnforcedAuthorizations(key_characteristics);
+        AuthorizationSet sw_enforced = SwEnforcedAuthorizations(key_characteristics);
+
+        CheckedDeleteKey(&key_blob);
+    }
+}
+
+/*
+ * NewKeyGenerationTest.EcdsaAttestationRequireAppId
+ *
+ * Verifies that if attestation challenge is provided to Ecdsa key generation, then
+ * app id must also be provided or else it will fail.
+ */
+TEST_P(NewKeyGenerationTest, EcdsaAttestationRequireAppId) {
+    auto challenge = "hello";
+    vector<uint8_t> key_blob;
+    vector<KeyCharacteristics> key_characteristics;
+
+    ASSERT_EQ(ErrorCode::ATTESTATION_APPLICATION_ID_MISSING,
+              GenerateKey(AuthorizationSetBuilder()
+                                  .EcdsaSigningKey(EcCurve::P_256)
+                                  .Digest(Digest::NONE)
+                                  .AttestationChallenge(challenge)
+                                  .SetDefaultValidity(),
+                          &key_blob, &key_characteristics));
+}
+
+/*
+ * NewKeyGenerationTest.EcdsaIgnoreAppId
+ *
+ * Verifies that if no challenge is provided to the Ecdsa key generation, then
+ * any appid will be ignored, and keymint will generate a self sign certificate.
+ */
+TEST_P(NewKeyGenerationTest, EcdsaIgnoreAppId) {
+    auto app_id = "foo";
+
+    for (auto key_size : ValidKeySizes(Algorithm::EC)) {
+        vector<uint8_t> key_blob;
+        vector<KeyCharacteristics> key_characteristics;
+        ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                     .EcdsaSigningKey(key_size)
+                                                     .Digest(Digest::NONE)
+                                                     .AttestationApplicationId(app_id)
+                                                     .SetDefaultValidity(),
+                                             &key_blob, &key_characteristics));
+
+        ASSERT_GT(key_blob.size(), 0U);
+        CheckBaseParams(key_characteristics);
+
+        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+
+        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::EC));
+        EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
+                << "Key size " << key_size << "missing";
+
+        EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
+        ASSERT_EQ(cert_chain_.size(), 1);
+
+        AuthorizationSet hw_enforced = HwEnforcedAuthorizations(key_characteristics);
+        AuthorizationSet sw_enforced = SwEnforcedAuthorizations(key_characteristics);
+
+        CheckedDeleteKey(&key_blob);
+    }
+}
+
+/*
+ * NewKeyGenerationTest.AttestationApplicationIDLengthProperlyEncoded
+ *
+ * Verifies that the Attestation Application ID software enforced tag has a proper length encoding.
+ * Some implementations break strict encoding rules by encoding a length between 127 and 256 in one
+ * byte. Proper DER encoding specifies that for lengths greater than 127, one byte should be used
+ * to specify how many following bytes will be used to encode the length.
+ */
+TEST_P(NewKeyGenerationTest, AttestationApplicationIDLengthProperlyEncoded) {
+    auto challenge = "hello";
+    auto key_size = 256;
+    std::vector<uint32_t> app_id_lengths{143, 258};
+
+    for (uint32_t length : app_id_lengths) {
+        const string app_id(length, 'a');
+        vector<uint8_t> key_blob;
+        vector<KeyCharacteristics> key_characteristics;
+        ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                     .Authorization(TAG_NO_AUTH_REQUIRED)
+                                                     .EcdsaSigningKey(key_size)
+                                                     .Digest(Digest::NONE)
+                                                     .AttestationChallenge(challenge)
+                                                     .AttestationApplicationId(app_id)
+                                                     .SetDefaultValidity(),
+                                             &key_blob, &key_characteristics));
+        ASSERT_GT(key_blob.size(), 0U);
+        CheckBaseParams(key_characteristics);
+
+        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+
+        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::EC));
+        EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
+                << "Key size " << key_size << "missing";
+
+        EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
+        ASSERT_GT(cert_chain_.size(), 0);
+
+        AuthorizationSet hw_enforced = HwEnforcedAuthorizations(key_characteristics);
+        AuthorizationSet sw_enforced = SwEnforcedAuthorizations(key_characteristics);
+        EXPECT_TRUE(verify_attestation_record(challenge, app_id,  //
+                                              sw_enforced, hw_enforced, SecLevel(),
+                                              cert_chain_[0].encodedCertificate));
+
+        CheckedDeleteKey(&key_blob);
+    }
+}
+
+/*
  * NewKeyGenerationTest.LimitedUsageEcdsa
  *
  * Verifies that KeyMint can generate all required EC key sizes with limited usage, and that the
@@ -641,6 +1198,41 @@
 }
 
 /*
+ * NewKeyGenerationTest.HmacNoAttestation
+ *
+ * Verifies that for Hmac key generation, no attestation will be generated even if challenge
+ * and app id are provided.
+ */
+TEST_P(NewKeyGenerationTest, HmacNoAttestation) {
+    auto challenge = "hello";
+    auto app_id = "foo";
+
+    for (auto digest : ValidDigests(false /* withNone */, true /* withMD5 */)) {
+        vector<uint8_t> key_blob;
+        vector<KeyCharacteristics> key_characteristics;
+        constexpr size_t key_size = 128;
+        ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                     .HmacKey(key_size)
+                                                     .Digest(digest)
+                                                     .AttestationChallenge(challenge)
+                                                     .AttestationApplicationId(app_id)
+                                                     .Authorization(TAG_MIN_MAC_LENGTH, 128),
+                                             &key_blob, &key_characteristics));
+
+        ASSERT_GT(key_blob.size(), 0U);
+        ASSERT_EQ(cert_chain_.size(), 0);
+        CheckBaseParams(key_characteristics);
+
+        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
+        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::HMAC));
+        EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
+                << "Key size " << key_size << "missing";
+
+        CheckedDeleteKey(&key_blob);
+    }
+}
+
+/*
  * NewKeyGenerationTest.LimitedUsageHmac
  *
  * Verifies that KeyMint supports all required digests with limited usage Hmac, and that the
@@ -774,6 +1366,47 @@
                                   .Authorization(TAG_MIN_MAC_LENGTH, 128)));
 }
 
+/*
+ * NewKeyGenerationTest.AesNoAttestation
+ *
+ * Verifies that attestation parameters to AES keys are ignored and generateKey
+ * will succeed.
+ */
+TEST_P(NewKeyGenerationTest, AesNoAttestation) {
+    auto challenge = "hello";
+    auto app_id = "foo";
+
+    ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                 .Authorization(TAG_NO_AUTH_REQUIRED)
+                                                 .AesEncryptionKey(128)
+                                                 .EcbMode()
+                                                 .Padding(PaddingMode::PKCS7)
+                                                 .AttestationChallenge(challenge)
+                                                 .AttestationApplicationId(app_id)));
+
+    ASSERT_EQ(cert_chain_.size(), 0);
+}
+
+/*
+ * NewKeyGenerationTest.TripleDesNoAttestation
+ *
+ * Verifies that attesting parameters to 3DES keys are ignored and generate key
+ * will be successful.  No attestation should be generated.
+ */
+TEST_P(NewKeyGenerationTest, TripleDesNoAttestation) {
+    auto challenge = "hello";
+    auto app_id = "foo";
+
+    ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                 .TripleDesEncryptionKey(168)
+                                                 .BlockMode(BlockMode::ECB)
+                                                 .Authorization(TAG_NO_AUTH_REQUIRED)
+                                                 .Padding(PaddingMode::NONE)
+                                                 .AttestationChallenge(challenge)
+                                                 .AttestationApplicationId(app_id)));
+    ASSERT_EQ(cert_chain_.size(), 0);
+}
+
 INSTANTIATE_KEYMINT_AIDL_TEST(NewKeyGenerationTest);
 
 typedef KeyMintAidlTestBase SigningOperationsTest;
@@ -1711,16 +2344,27 @@
  * Verifies that importing and using an RSA key pair works correctly.
  */
 TEST_P(ImportKeyTest, RsaSuccess) {
+    uint32_t key_size;
+    string key;
+
+    if (SecLevel() == SecurityLevel::STRONGBOX) {
+        key_size = 2048;
+        key = rsa_2048_key;
+    } else {
+        key_size = 1024;
+        key = rsa_key;
+    }
+
     ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
                                                .Authorization(TAG_NO_AUTH_REQUIRED)
-                                               .RsaSigningKey(1024, 65537)
+                                               .RsaSigningKey(key_size, 65537)
                                                .Digest(Digest::SHA_2_256)
                                                .Padding(PaddingMode::RSA_PSS)
                                                .SetDefaultValidity(),
-                                       KeyFormat::PKCS8, rsa_key));
+                                       KeyFormat::PKCS8, key));
 
     CheckCryptoParam(TAG_ALGORITHM, Algorithm::RSA);
-    CheckCryptoParam(TAG_KEY_SIZE, 1024U);
+    CheckCryptoParam(TAG_KEY_SIZE, key_size);
     CheckCryptoParam(TAG_RSA_PUBLIC_EXPONENT, 65537U);
     CheckCryptoParam(TAG_DIGEST, Digest::SHA_2_256);
     CheckCryptoParam(TAG_PADDING, PaddingMode::RSA_PSS);
@@ -4728,16 +5372,6 @@
 
 INSTANTIATE_KEYMINT_AIDL_TEST(UnlockedDeviceRequiredTest);
 
-using PerformOperationTest = KeyMintAidlTestBase;
-
-TEST_P(PerformOperationTest, RequireUnimplemented) {
-    vector<uint8_t> response;
-    auto result = keymint_->performOperation({} /* request */, &response);
-    ASSERT_EQ(GetReturnErrorCode(result), ErrorCode::UNIMPLEMENTED);
-}
-
-INSTANTIATE_KEYMINT_AIDL_TEST(PerformOperationTest);
-
 }  // namespace aidl::android::hardware::security::keymint::test
 
 int main(int argc, char** argv) {
diff --git a/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp b/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
index 57bc27a..a2071c2 100644
--- a/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
+++ b/security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
@@ -16,13 +16,13 @@
 
 #define LOG_TAG "VtsRemotelyProvisionableComponentTests"
 
-#include <RemotelyProvisionedComponent.h>
+#include <AndroidRemotelyProvisionedComponentDevice.h>
 #include <aidl/android/hardware/security/keymint/IRemotelyProvisionedComponent.h>
 #include <aidl/android/hardware/security/keymint/SecurityLevel.h>
 #include <android/binder_manager.h>
 #include <cppbor_parse.h>
-#include <cppcose/cppcose.h>
 #include <gmock/gmock.h>
+#include <keymaster/cppcose/cppcose.h>
 #include <keymaster/keymaster_configuration.h>
 #include <keymint_support/authorization_set.h>
 #include <openssl/ec.h>
@@ -55,117 +55,6 @@
     return bytevec(p, p + strlen(s));
 }
 
-void p256_pub_key(const vector<uint8_t>& coseKeyData, EVP_PKEY_Ptr* signingKey) {
-    // Extract x and y affine coordinates from the encoded Cose_Key.
-    auto [parsedPayload, __, payloadParseErr] = cppbor::parse(coseKeyData);
-    ASSERT_TRUE(parsedPayload) << "Key parse failed: " << payloadParseErr;
-    auto coseKey = parsedPayload->asMap();
-    const std::unique_ptr<cppbor::Item>& xItem = coseKey->get(cppcose::CoseKey::PUBKEY_X);
-    ASSERT_NE(xItem->asBstr(), nullptr);
-    vector<uint8_t> x = xItem->asBstr()->value();
-    const std::unique_ptr<cppbor::Item>& yItem = coseKey->get(cppcose::CoseKey::PUBKEY_Y);
-    ASSERT_NE(yItem->asBstr(), nullptr);
-    vector<uint8_t> y = yItem->asBstr()->value();
-
-    // Concatenate: 0x04 (uncompressed form marker) | x | y
-    vector<uint8_t> pubKeyData{0x04};
-    pubKeyData.insert(pubKeyData.end(), x.begin(), x.end());
-    pubKeyData.insert(pubKeyData.end(), y.begin(), y.end());
-
-    EC_KEY_Ptr ecKey = EC_KEY_Ptr(EC_KEY_new());
-    ASSERT_NE(ecKey, nullptr);
-    EC_GROUP_Ptr group = EC_GROUP_Ptr(EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1));
-    ASSERT_NE(group, nullptr);
-    ASSERT_EQ(EC_KEY_set_group(ecKey.get(), group.get()), 1);
-    EC_POINT_Ptr point = EC_POINT_Ptr(EC_POINT_new(group.get()));
-    ASSERT_NE(point, nullptr);
-    ASSERT_EQ(EC_POINT_oct2point(group.get(), point.get(), pubKeyData.data(), pubKeyData.size(),
-                                 nullptr),
-              1);
-    ASSERT_EQ(EC_KEY_set_public_key(ecKey.get(), point.get()), 1);
-
-    EVP_PKEY_Ptr pubKey = EVP_PKEY_Ptr(EVP_PKEY_new());
-    ASSERT_NE(pubKey, nullptr);
-    EVP_PKEY_assign_EC_KEY(pubKey.get(), ecKey.release());
-    *signingKey = std::move(pubKey);
-}
-
-void check_cose_key(const vector<uint8_t>& data, bool testMode) {
-    auto [parsedPayload, __, payloadParseErr] = cppbor::parse(data);
-    ASSERT_TRUE(parsedPayload) << "Key parse failed: " << payloadParseErr;
-
-    // The following check assumes that canonical CBOR encoding is used for the COSE_Key.
-    if (testMode) {
-        EXPECT_THAT(cppbor::prettyPrint(parsedPayload.get()),
-                    MatchesRegex("{\n"
-                                 "  1 : 2,\n"   // kty: EC2
-                                 "  3 : -7,\n"  // alg: ES256
-                                 "  -1 : 1,\n"  // EC id: P256
-                                 // The regex {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}} matches a
-                                 // sequence of 32 hexadecimal bytes, enclosed in braces and
-                                 // separated by commas. In this case, some Ed25519 public key.
-                                 "  -2 : {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}},\n"  // pub_x: data
-                                 "  -3 : {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}},\n"  // pub_y: data
-                                 "  -70000 : null,\n"                              // test marker
-                                 "}"));
-    } else {
-        EXPECT_THAT(cppbor::prettyPrint(parsedPayload.get()),
-                    MatchesRegex("{\n"
-                                 "  1 : 2,\n"   // kty: EC2
-                                 "  3 : -7,\n"  // alg: ES256
-                                 "  -1 : 1,\n"  // EC id: P256
-                                 // The regex {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}} matches a
-                                 // sequence of 32 hexadecimal bytes, enclosed in braces and
-                                 // separated by commas. In this case, some Ed25519 public key.
-                                 "  -2 : {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}},\n"  // pub_x: data
-                                 "  -3 : {(0x[0-9a-f]{2}, ){31}0x[0-9a-f]{2}},\n"  // pub_y: data
-                                 "}"));
-    }
-}
-
-void check_maced_pubkey(const MacedPublicKey& macedPubKey, bool testMode,
-                        vector<uint8_t>* payload_value) {
-    auto [coseMac0, _, mac0ParseErr] = cppbor::parse(macedPubKey.macedKey);
-    ASSERT_TRUE(coseMac0) << "COSE Mac0 parse failed " << mac0ParseErr;
-
-    ASSERT_NE(coseMac0->asArray(), nullptr);
-    ASSERT_EQ(coseMac0->asArray()->size(), kCoseMac0EntryCount);
-
-    auto protParms = coseMac0->asArray()->get(kCoseMac0ProtectedParams)->asBstr();
-    ASSERT_NE(protParms, nullptr);
-
-    // Header label:value of 'alg': HMAC-256
-    ASSERT_EQ(cppbor::prettyPrint(protParms->value()), "{\n  1 : 5,\n}");
-
-    auto unprotParms = coseMac0->asArray()->get(kCoseMac0UnprotectedParams)->asMap();
-    ASSERT_NE(unprotParms, nullptr);
-    ASSERT_EQ(unprotParms->size(), 0);
-
-    // The payload is a bstr holding an encoded COSE_Key
-    auto payload = coseMac0->asArray()->get(kCoseMac0Payload)->asBstr();
-    ASSERT_NE(payload, nullptr);
-    check_cose_key(payload->value(), testMode);
-
-    auto coseMac0Tag = coseMac0->asArray()->get(kCoseMac0Tag)->asBstr();
-    ASSERT_TRUE(coseMac0Tag);
-    auto extractedTag = coseMac0Tag->value();
-    EXPECT_EQ(extractedTag.size(), 32U);
-
-    // Compare with tag generated with kTestMacKey.  Should only match in test mode
-    auto testTag = cppcose::generateCoseMac0Mac(remote_prov::kTestMacKey, {} /* external_aad */,
-                                                payload->value());
-    ASSERT_TRUE(testTag) << "Tag calculation failed: " << testTag.message();
-
-    if (testMode) {
-        EXPECT_EQ(*testTag, extractedTag);
-    } else {
-        EXPECT_NE(*testTag, extractedTag);
-    }
-    if (payload_value != nullptr) {
-        *payload_value = payload->value();
-    }
-}
-
 ErrMsgOr<MacedPublicKey> corrupt_maced_key(const MacedPublicKey& macedPubKey) {
     auto [coseMac0, _, mac0ParseErr] = cppbor::parse(macedPubKey.macedKey);
     if (!coseMac0 || coseMac0->asArray()->size() != kCoseMac0EntryCount) {
diff --git a/security/keymint/aidl/vts/performance/KeyMintBenchmark.cpp b/security/keymint/aidl/vts/performance/KeyMintBenchmark.cpp
index 6c795f5..54b6fdc 100644
--- a/security/keymint/aidl/vts/performance/KeyMintBenchmark.cpp
+++ b/security/keymint/aidl/vts/performance/KeyMintBenchmark.cpp
@@ -228,8 +228,7 @@
                     AuthorizationSet* out_params) {
         Status result;
         BeginResult out;
-        result = keymint_->begin(purpose, key_blob_, in_params.vector_data(), HardwareAuthToken(),
-                                 &out);
+        result = keymint_->begin(purpose, key_blob_, in_params.vector_data(), std::nullopt, &out);
         if (result.isOk()) {
             *out_params = out.params;
             op_ = out.operation;
diff --git a/security/keymint/support/Android.bp b/security/keymint/support/Android.bp
index 4c4258b..718133a 100644
--- a/security/keymint/support/Android.bp
+++ b/security/keymint/support/Android.bp
@@ -57,25 +57,8 @@
         "include",
     ],
     shared_libs: [
-        "libcppcose",
         "libcppbor_external",
+        "libcppcose_rkp",
         "libcrypto",
     ],
 }
-
-cc_library {
-    name: "libcppcose",
-    vendor_available: true,
-    host_supported: true,
-    srcs: [
-        "cppcose.cpp",
-    ],
-    export_include_dirs: [
-        "include",
-    ],
-    shared_libs: [
-        "libcppbor_external",
-        "libcrypto",
-        "liblog",
-    ],
-}
diff --git a/security/keymint/support/cppcose.cpp b/security/keymint/support/cppcose.cpp
deleted file mode 100644
index bafb2b6..0000000
--- a/security/keymint/support/cppcose.cpp
+++ /dev/null
@@ -1,467 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <cppcose/cppcose.h>
-
-#include <stdio.h>
-#include <iostream>
-
-#include <cppbor.h>
-#include <cppbor_parse.h>
-
-#include <openssl/err.h>
-
-namespace cppcose {
-
-namespace {
-
-ErrMsgOr<bssl::UniquePtr<EVP_CIPHER_CTX>> aesGcmInitAndProcessAad(const bytevec& key,
-                                                                  const bytevec& nonce,
-                                                                  const bytevec& aad,
-                                                                  bool encrypt) {
-    if (key.size() != kAesGcmKeySize) return "Invalid key size";
-
-    bssl::UniquePtr<EVP_CIPHER_CTX> ctx(EVP_CIPHER_CTX_new());
-    if (!ctx) return "Failed to allocate cipher context";
-
-    if (!EVP_CipherInit_ex(ctx.get(), EVP_aes_256_gcm(), nullptr /* engine */, key.data(),
-                           nonce.data(), encrypt ? 1 : 0)) {
-        return "Failed to initialize cipher";
-    }
-
-    int outlen;
-    if (!aad.empty() && !EVP_CipherUpdate(ctx.get(), nullptr /* out; null means AAD */, &outlen,
-                                          aad.data(), aad.size())) {
-        return "Failed to process AAD";
-    }
-
-    return std::move(ctx);
-}
-
-}  // namespace
-
-ErrMsgOr<bytevec> generateCoseMac0Mac(const bytevec& macKey, const bytevec& externalAad,
-                                      const bytevec& payload) {
-    auto macStructure = cppbor::Array()
-                                .add("MAC0")
-                                .add(cppbor::Map().add(ALGORITHM, HMAC_256).canonicalize().encode())
-                                .add(externalAad)
-                                .add(payload)
-                                .encode();
-
-    bytevec macTag(SHA256_DIGEST_LENGTH);
-    uint8_t* out = macTag.data();
-    unsigned int outLen;
-    out = HMAC(EVP_sha256(),                              //
-               macKey.data(), macKey.size(),              //
-               macStructure.data(), macStructure.size(),  //
-               out, &outLen);
-
-    assert(out != nullptr && outLen == macTag.size());
-    if (out == nullptr || outLen != macTag.size()) {
-        return "Error computing public key MAC";
-    }
-
-    return macTag;
-}
-
-ErrMsgOr<cppbor::Array> constructCoseMac0(const bytevec& macKey, const bytevec& externalAad,
-                                          const bytevec& payload) {
-    auto tag = generateCoseMac0Mac(macKey, externalAad, payload);
-    if (!tag) return tag.moveMessage();
-
-    return cppbor::Array()
-            .add(cppbor::Map().add(ALGORITHM, HMAC_256).canonicalize().encode())
-            .add(cppbor::Map() /* unprotected */)
-            .add(payload)
-            .add(tag.moveValue());
-}
-
-ErrMsgOr<bytevec /* payload */> parseCoseMac0(const cppbor::Item* macItem) {
-    auto mac = macItem ? macItem->asArray() : nullptr;
-    if (!mac || mac->size() != kCoseMac0EntryCount) {
-        return "Invalid COSE_Mac0";
-    }
-
-    auto protectedParms = mac->get(kCoseMac0ProtectedParams)->asBstr();
-    auto unprotectedParms = mac->get(kCoseMac0UnprotectedParams)->asMap();
-    auto payload = mac->get(kCoseMac0Payload)->asBstr();
-    auto tag = mac->get(kCoseMac0Tag)->asBstr();
-    if (!protectedParms || !unprotectedParms || !payload || !tag) {
-        return "Invalid COSE_Mac0 contents";
-    }
-
-    return payload->value();
-}
-
-ErrMsgOr<bytevec /* payload */> verifyAndParseCoseMac0(const cppbor::Item* macItem,
-                                                       const bytevec& macKey) {
-    auto mac = macItem ? macItem->asArray() : nullptr;
-    if (!mac || mac->size() != kCoseMac0EntryCount) {
-        return "Invalid COSE_Mac0";
-    }
-
-    auto protectedParms = mac->get(kCoseMac0ProtectedParams)->asBstr();
-    auto unprotectedParms = mac->get(kCoseMac0UnprotectedParams)->asMap();
-    auto payload = mac->get(kCoseMac0Payload)->asBstr();
-    auto tag = mac->get(kCoseMac0Tag)->asBstr();
-    if (!protectedParms || !unprotectedParms || !payload || !tag) {
-        return "Invalid COSE_Mac0 contents";
-    }
-
-    auto [protectedMap, _, errMsg] = cppbor::parse(protectedParms);
-    if (!protectedMap || !protectedMap->asMap()) {
-        return "Invalid Mac0 protected: " + errMsg;
-    }
-    auto& algo = protectedMap->asMap()->get(ALGORITHM);
-    if (!algo || !algo->asInt() || algo->asInt()->value() != HMAC_256) {
-        return "Unsupported Mac0 algorithm";
-    }
-
-    auto macTag = generateCoseMac0Mac(macKey, {} /* external_aad */, payload->value());
-    if (!macTag) return macTag.moveMessage();
-
-    if (macTag->size() != tag->value().size() ||
-        CRYPTO_memcmp(macTag->data(), tag->value().data(), macTag->size()) != 0) {
-        return "MAC tag mismatch";
-    }
-
-    return payload->value();
-}
-
-ErrMsgOr<bytevec> createCoseSign1Signature(const bytevec& key, const bytevec& protectedParams,
-                                           const bytevec& payload, const bytevec& aad) {
-    bytevec signatureInput = cppbor::Array()
-                                     .add("Signature1")  //
-                                     .add(protectedParams)
-                                     .add(aad)
-                                     .add(payload)
-                                     .encode();
-
-    if (key.size() != ED25519_PRIVATE_KEY_LEN) return "Invalid signing key";
-    bytevec signature(ED25519_SIGNATURE_LEN);
-    if (!ED25519_sign(signature.data(), signatureInput.data(), signatureInput.size(), key.data())) {
-        return "Signing failed";
-    }
-
-    return signature;
-}
-
-ErrMsgOr<cppbor::Array> constructCoseSign1(const bytevec& key, cppbor::Map protectedParams,
-                                           const bytevec& payload, const bytevec& aad) {
-    bytevec protParms = protectedParams.add(ALGORITHM, EDDSA).canonicalize().encode();
-    auto signature = createCoseSign1Signature(key, protParms, payload, aad);
-    if (!signature) return signature.moveMessage();
-
-    return cppbor::Array()
-            .add(protParms)
-            .add(cppbor::Map() /* unprotected parameters */)
-            .add(payload)
-            .add(*signature);
-}
-
-ErrMsgOr<cppbor::Array> constructCoseSign1(const bytevec& key, const bytevec& payload,
-                                           const bytevec& aad) {
-    return constructCoseSign1(key, {} /* protectedParams */, payload, aad);
-}
-
-ErrMsgOr<bytevec> verifyAndParseCoseSign1(bool ignoreSignature, const cppbor::Array* coseSign1,
-                                          const bytevec& signingCoseKey, const bytevec& aad) {
-    if (!coseSign1 || coseSign1->size() != kCoseSign1EntryCount) {
-        return "Invalid COSE_Sign1";
-    }
-
-    const cppbor::Bstr* protectedParams = coseSign1->get(kCoseSign1ProtectedParams)->asBstr();
-    const cppbor::Map* unprotectedParams = coseSign1->get(kCoseSign1UnprotectedParams)->asMap();
-    const cppbor::Bstr* payload = coseSign1->get(kCoseSign1Payload)->asBstr();
-    const cppbor::Bstr* signature = coseSign1->get(kCoseSign1Signature)->asBstr();
-
-    if (!protectedParams || !unprotectedParams || !payload || !signature) {
-        return "Invalid COSE_Sign1";
-    }
-
-    auto [parsedProtParams, _, errMsg] = cppbor::parse(protectedParams);
-    if (!parsedProtParams) {
-        return errMsg + " when parsing protected params.";
-    }
-    if (!parsedProtParams->asMap()) {
-        return "Protected params must be a map";
-    }
-
-    auto& algorithm = parsedProtParams->asMap()->get(ALGORITHM);
-    if (!algorithm || !algorithm->asInt() || algorithm->asInt()->value() != EDDSA) {
-        return "Unsupported signature algorithm";
-    }
-
-    if (!ignoreSignature) {
-        bool selfSigned = signingCoseKey.empty();
-        auto key = CoseKey::parseEd25519(selfSigned ? payload->value() : signingCoseKey);
-        if (!key) return "Bad signing key: " + key.moveMessage();
-
-        bytevec signatureInput = cppbor::Array()
-                                         .add("Signature1")
-                                         .add(*protectedParams)
-                                         .add(aad)
-                                         .add(*payload)
-                                         .encode();
-
-        if (!ED25519_verify(signatureInput.data(), signatureInput.size(), signature->value().data(),
-                            key->getBstrValue(CoseKey::PUBKEY_X)->data())) {
-            return "Signature verification failed";
-        }
-    }
-
-    return payload->value();
-}
-
-ErrMsgOr<bytevec> createCoseEncryptCiphertext(const bytevec& key, const bytevec& nonce,
-                                              const bytevec& protectedParams,
-                                              const bytevec& plaintextPayload, const bytevec& aad) {
-    auto ciphertext = aesGcmEncrypt(key, nonce,
-                                    cppbor::Array()                // Enc strucure as AAD
-                                            .add("Encrypt")        // Context
-                                            .add(protectedParams)  // Protected
-                                            .add(aad)              // External AAD
-                                            .encode(),
-                                    plaintextPayload);
-
-    if (!ciphertext) return ciphertext.moveMessage();
-    return ciphertext.moveValue();
-}
-
-ErrMsgOr<cppbor::Array> constructCoseEncrypt(const bytevec& key, const bytevec& nonce,
-                                             const bytevec& plaintextPayload, const bytevec& aad,
-                                             cppbor::Array recipients) {
-    auto encryptProtectedHeader = cppbor::Map()  //
-                                          .add(ALGORITHM, AES_GCM_256)
-                                          .canonicalize()
-                                          .encode();
-
-    auto ciphertext =
-            createCoseEncryptCiphertext(key, nonce, encryptProtectedHeader, plaintextPayload, aad);
-    if (!ciphertext) return ciphertext.moveMessage();
-
-    return cppbor::Array()
-            .add(encryptProtectedHeader)                       // Protected
-            .add(cppbor::Map().add(IV, nonce).canonicalize())  // Unprotected
-            .add(*ciphertext)                                  // Payload
-            .add(std::move(recipients));
-}
-
-ErrMsgOr<std::pair<bytevec /* pubkey */, bytevec /* key ID */>> getSenderPubKeyFromCoseEncrypt(
-        const cppbor::Item* coseEncrypt) {
-    if (!coseEncrypt || !coseEncrypt->asArray() ||
-        coseEncrypt->asArray()->size() != kCoseEncryptEntryCount) {
-        return "Invalid COSE_Encrypt";
-    }
-
-    auto& recipients = coseEncrypt->asArray()->get(kCoseEncryptRecipients);
-    if (!recipients || !recipients->asArray() || recipients->asArray()->size() != 1) {
-        return "Invalid recipients list";
-    }
-
-    auto& recipient = recipients->asArray()->get(0);
-    if (!recipient || !recipient->asArray() || recipient->asArray()->size() != 3) {
-        return "Invalid COSE_recipient";
-    }
-
-    auto& ciphertext = recipient->asArray()->get(2);
-    if (!ciphertext->asSimple() || !ciphertext->asSimple()->asNull()) {
-        return "Unexpected value in recipients ciphertext field " +
-               cppbor::prettyPrint(ciphertext.get());
-    }
-
-    auto& protParms = recipient->asArray()->get(0);
-    if (!protParms || !protParms->asBstr()) return "Invalid protected params";
-    auto [parsedProtParms, _, errMsg] = cppbor::parse(protParms->asBstr());
-    if (!parsedProtParms) return "Failed to parse protected params: " + errMsg;
-    if (!parsedProtParms->asMap()) return "Invalid protected params";
-
-    auto& algorithm = parsedProtParms->asMap()->get(ALGORITHM);
-    if (!algorithm || !algorithm->asInt() || algorithm->asInt()->value() != ECDH_ES_HKDF_256) {
-        return "Invalid algorithm";
-    }
-
-    auto& unprotParms = recipient->asArray()->get(1);
-    if (!unprotParms || !unprotParms->asMap()) return "Invalid unprotected params";
-
-    auto& senderCoseKey = unprotParms->asMap()->get(COSE_KEY);
-    if (!senderCoseKey || !senderCoseKey->asMap()) return "Invalid sender COSE_Key";
-
-    auto& keyType = senderCoseKey->asMap()->get(CoseKey::KEY_TYPE);
-    if (!keyType || !keyType->asInt() || keyType->asInt()->value() != OCTET_KEY_PAIR) {
-        return "Invalid key type";
-    }
-
-    auto& curve = senderCoseKey->asMap()->get(CoseKey::CURVE);
-    if (!curve || !curve->asInt() || curve->asInt()->value() != X25519) {
-        return "Unsupported curve";
-    }
-
-    auto& pubkey = senderCoseKey->asMap()->get(CoseKey::PUBKEY_X);
-    if (!pubkey || !pubkey->asBstr() ||
-        pubkey->asBstr()->value().size() != X25519_PUBLIC_VALUE_LEN) {
-        return "Invalid X25519 public key";
-    }
-
-    auto& key_id = unprotParms->asMap()->get(KEY_ID);
-    if (key_id && key_id->asBstr()) {
-        return std::make_pair(pubkey->asBstr()->value(), key_id->asBstr()->value());
-    }
-
-    // If no key ID, just return an empty vector.
-    return std::make_pair(pubkey->asBstr()->value(), bytevec{});
-}
-
-ErrMsgOr<bytevec> decryptCoseEncrypt(const bytevec& key, const cppbor::Item* coseEncrypt,
-                                     const bytevec& external_aad) {
-    if (!coseEncrypt || !coseEncrypt->asArray() ||
-        coseEncrypt->asArray()->size() != kCoseEncryptEntryCount) {
-        return "Invalid COSE_Encrypt";
-    }
-
-    auto& protParms = coseEncrypt->asArray()->get(kCoseEncryptProtectedParams);
-    auto& unprotParms = coseEncrypt->asArray()->get(kCoseEncryptUnprotectedParams);
-    auto& ciphertext = coseEncrypt->asArray()->get(kCoseEncryptPayload);
-    auto& recipients = coseEncrypt->asArray()->get(kCoseEncryptRecipients);
-
-    if (!protParms || !protParms->asBstr() || !unprotParms || !ciphertext || !recipients) {
-        return "Invalid COSE_Encrypt";
-    }
-
-    auto [parsedProtParams, _, errMsg] = cppbor::parse(protParms->asBstr()->value());
-    if (!parsedProtParams) {
-        return errMsg + " when parsing protected params.";
-    }
-    if (!parsedProtParams->asMap()) {
-        return "Protected params must be a map";
-    }
-
-    auto& algorithm = parsedProtParams->asMap()->get(ALGORITHM);
-    if (!algorithm || !algorithm->asInt() || algorithm->asInt()->value() != AES_GCM_256) {
-        return "Unsupported encryption algorithm";
-    }
-
-    if (!unprotParms->asMap() || unprotParms->asMap()->size() != 1) {
-        return "Invalid unprotected params";
-    }
-
-    auto& nonce = unprotParms->asMap()->get(IV);
-    if (!nonce || !nonce->asBstr() || nonce->asBstr()->value().size() != kAesGcmNonceLength) {
-        return "Invalid nonce";
-    }
-
-    if (!ciphertext->asBstr()) return "Invalid ciphertext";
-
-    auto aad = cppbor::Array()                             // Enc strucure as AAD
-                       .add("Encrypt")                     // Context
-                       .add(protParms->asBstr()->value())  // Protected
-                       .add(external_aad)                  // External AAD
-                       .encode();
-
-    return aesGcmDecrypt(key, nonce->asBstr()->value(), aad, ciphertext->asBstr()->value());
-}
-
-ErrMsgOr<bytevec> x25519_HKDF_DeriveKey(const bytevec& pubKeyA, const bytevec& privKeyA,
-                                        const bytevec& pubKeyB, bool senderIsA) {
-    bytevec rawSharedKey(X25519_SHARED_KEY_LEN);
-    if (!::X25519(rawSharedKey.data(), privKeyA.data(), pubKeyB.data())) {
-        return "ECDH operation failed";
-    }
-
-    bytevec kdfContext = cppbor::Array()
-                                 .add(AES_GCM_256)
-                                 .add(cppbor::Array()  // Sender Info
-                                              .add(cppbor::Bstr("client"))
-                                              .add(bytevec{} /* nonce */)
-                                              .add(senderIsA ? pubKeyA : pubKeyB))
-                                 .add(cppbor::Array()  // Recipient Info
-                                              .add(cppbor::Bstr("server"))
-                                              .add(bytevec{} /* nonce */)
-                                              .add(senderIsA ? pubKeyB : pubKeyA))
-                                 .add(cppbor::Array()           // SuppPubInfo
-                                              .add(128)         // output key length
-                                              .add(bytevec{}))  // protected
-                                 .encode();
-
-    bytevec retval(SHA256_DIGEST_LENGTH);
-    bytevec salt{};
-    if (!HKDF(retval.data(), retval.size(),              //
-              EVP_sha256(),                              //
-              rawSharedKey.data(), rawSharedKey.size(),  //
-              salt.data(), salt.size(),                  //
-              kdfContext.data(), kdfContext.size())) {
-        return "ECDH HKDF failed";
-    }
-
-    return retval;
-}
-
-ErrMsgOr<bytevec> aesGcmEncrypt(const bytevec& key, const bytevec& nonce, const bytevec& aad,
-                                const bytevec& plaintext) {
-    auto ctx = aesGcmInitAndProcessAad(key, nonce, aad, true /* encrypt */);
-    if (!ctx) return ctx.moveMessage();
-
-    bytevec ciphertext(plaintext.size() + kAesGcmTagSize);
-    int outlen;
-    if (!EVP_CipherUpdate(ctx->get(), ciphertext.data(), &outlen, plaintext.data(),
-                          plaintext.size())) {
-        return "Failed to encrypt plaintext";
-    }
-    assert(plaintext.size() == outlen);
-
-    if (!EVP_CipherFinal_ex(ctx->get(), ciphertext.data() + outlen, &outlen)) {
-        return "Failed to finalize encryption";
-    }
-    assert(outlen == 0);
-
-    if (!EVP_CIPHER_CTX_ctrl(ctx->get(), EVP_CTRL_GCM_GET_TAG, kAesGcmTagSize,
-                             ciphertext.data() + plaintext.size())) {
-        return "Failed to retrieve tag";
-    }
-
-    return ciphertext;
-}
-
-ErrMsgOr<bytevec> aesGcmDecrypt(const bytevec& key, const bytevec& nonce, const bytevec& aad,
-                                const bytevec& ciphertextWithTag) {
-    auto ctx = aesGcmInitAndProcessAad(key, nonce, aad, false /* encrypt */);
-    if (!ctx) return ctx.moveMessage();
-
-    if (ciphertextWithTag.size() < kAesGcmTagSize) return "Missing tag";
-
-    bytevec plaintext(ciphertextWithTag.size() - kAesGcmTagSize);
-    int outlen;
-    if (!EVP_CipherUpdate(ctx->get(), plaintext.data(), &outlen, ciphertextWithTag.data(),
-                          ciphertextWithTag.size() - kAesGcmTagSize)) {
-        return "Failed to decrypt plaintext";
-    }
-    assert(plaintext.size() == outlen);
-
-    bytevec tag(ciphertextWithTag.end() - kAesGcmTagSize, ciphertextWithTag.end());
-    if (!EVP_CIPHER_CTX_ctrl(ctx->get(), EVP_CTRL_GCM_SET_TAG, kAesGcmTagSize, tag.data())) {
-        return "Failed to set tag: " + std::to_string(ERR_peek_last_error());
-    }
-
-    if (!EVP_CipherFinal_ex(ctx->get(), nullptr, &outlen)) {
-        return "Failed to finalize encryption";
-    }
-    assert(outlen == 0);
-
-    return plaintext;
-}
-
-}  // namespace cppcose
diff --git a/security/keymint/support/include/cppcose/cppcose.h b/security/keymint/support/include/cppcose/cppcose.h
deleted file mode 100644
index a936bfd..0000000
--- a/security/keymint/support/include/cppcose/cppcose.h
+++ /dev/null
@@ -1,288 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <memory>
-#include <optional>
-#include <string>
-#include <vector>
-
-#include <cppbor.h>
-#include <cppbor_parse.h>
-
-#include <openssl/cipher.h>
-#include <openssl/curve25519.h>
-#include <openssl/digest.h>
-#include <openssl/hkdf.h>
-#include <openssl/hmac.h>
-#include <openssl/mem.h>
-#include <openssl/sha.h>
-
-namespace cppcose {
-
-using bytevec = std::vector<uint8_t>;
-
-constexpr int kCoseSign1EntryCount = 4;
-constexpr int kCoseSign1ProtectedParams = 0;
-constexpr int kCoseSign1UnprotectedParams = 1;
-constexpr int kCoseSign1Payload = 2;
-constexpr int kCoseSign1Signature = 3;
-
-constexpr int kCoseMac0EntryCount = 4;
-constexpr int kCoseMac0ProtectedParams = 0;
-constexpr int kCoseMac0UnprotectedParams = 1;
-constexpr int kCoseMac0Payload = 2;
-constexpr int kCoseMac0Tag = 3;
-
-constexpr int kCoseEncryptEntryCount = 4;
-constexpr int kCoseEncryptProtectedParams = 0;
-constexpr int kCoseEncryptUnprotectedParams = 1;
-constexpr int kCoseEncryptPayload = 2;
-constexpr int kCoseEncryptRecipients = 3;
-
-enum Label : int {
-    ALGORITHM = 1,
-    KEY_ID = 4,
-    IV = 5,
-    COSE_KEY = -1,
-};
-
-enum CoseKeyAlgorithm : int {
-    AES_GCM_256 = 3,
-    HMAC_256 = 5,
-    ES256 = -7,  // ECDSA with SHA-256
-    EDDSA = -8,
-    ECDH_ES_HKDF_256 = -25,
-};
-
-enum CoseKeyCurve : int { P256 = 1, X25519 = 4, ED25519 = 6 };
-enum CoseKeyType : int { OCTET_KEY_PAIR = 1, EC2 = 2, SYMMETRIC_KEY = 4 };
-enum CoseKeyOps : int { SIGN = 1, VERIFY = 2, ENCRYPT = 3, DECRYPT = 4 };
-
-constexpr int kAesGcmNonceLength = 12;
-constexpr int kAesGcmTagSize = 16;
-constexpr int kAesGcmKeySize = 32;
-
-template <typename T>
-class ErrMsgOr {
-  public:
-    ErrMsgOr(std::string errMsg) : errMsg_(std::move(errMsg)) {}
-    ErrMsgOr(const char* errMsg) : errMsg_(errMsg) {}
-    ErrMsgOr(T val) : value_(std::move(val)) {}
-
-    operator bool() const { return value_.has_value(); }
-
-    T* operator->() & {
-        assert(value_);
-        return &value_.value();
-    }
-    T& operator*() & {
-        assert(value_);
-        return value_.value();
-    };
-    T&& operator*() && {
-        assert(value_);
-        return std::move(value_).value();
-    };
-
-    const std::string& message() { return errMsg_; }
-    std::string moveMessage() { return std::move(errMsg_); }
-
-    T moveValue() {
-        assert(value_);
-        return std::move(value_).value();
-    }
-
-  private:
-    std::string errMsg_;
-    std::optional<T> value_;
-};
-
-class CoseKey {
-  public:
-    CoseKey() {}
-    CoseKey(const CoseKey&) = delete;
-    CoseKey(CoseKey&&) = default;
-
-    enum Label : int {
-        KEY_TYPE = 1,
-        KEY_ID = 2,
-        ALGORITHM = 3,
-        KEY_OPS = 4,
-        CURVE = -1,
-        PUBKEY_X = -2,
-        PUBKEY_Y = -3,
-        PRIVATE_KEY = -4,
-        TEST_KEY = -70000  // Application-defined
-    };
-
-    static ErrMsgOr<CoseKey> parse(const bytevec& coseKey) {
-        auto [parsedKey, _, errMsg] = cppbor::parse(coseKey);
-        if (!parsedKey) return errMsg + " when parsing key";
-        if (!parsedKey->asMap()) return "CoseKey must be a map";
-        return CoseKey(static_cast<cppbor::Map*>(parsedKey.release()));
-    }
-
-    static ErrMsgOr<CoseKey> parse(const bytevec& coseKey, CoseKeyType expectedKeyType,
-                                   CoseKeyAlgorithm expectedAlgorithm, CoseKeyCurve expectedCurve) {
-        auto key = parse(coseKey);
-        if (!key) return key;
-
-        if (!key->checkIntValue(CoseKey::KEY_TYPE, expectedKeyType) ||
-            !key->checkIntValue(CoseKey::ALGORITHM, expectedAlgorithm) ||
-            !key->checkIntValue(CoseKey::CURVE, expectedCurve)) {
-            return "Unexpected key type:";
-        }
-
-        return key;
-    }
-
-    static ErrMsgOr<CoseKey> parseEd25519(const bytevec& coseKey) {
-        auto key = parse(coseKey, OCTET_KEY_PAIR, EDDSA, ED25519);
-        if (!key) return key;
-
-        auto& pubkey = key->getMap().get(PUBKEY_X);
-        if (!pubkey || !pubkey->asBstr() ||
-            pubkey->asBstr()->value().size() != ED25519_PUBLIC_KEY_LEN) {
-            return "Invalid Ed25519 public key";
-        }
-
-        return key;
-    }
-
-    static ErrMsgOr<CoseKey> parseX25519(const bytevec& coseKey, bool requireKid) {
-        auto key = parse(coseKey, OCTET_KEY_PAIR, ECDH_ES_HKDF_256, X25519);
-        if (!key) return key;
-
-        auto& pubkey = key->getMap().get(PUBKEY_X);
-        if (!pubkey || !pubkey->asBstr() ||
-            pubkey->asBstr()->value().size() != X25519_PUBLIC_VALUE_LEN) {
-            return "Invalid X25519 public key";
-        }
-
-        auto& kid = key->getMap().get(KEY_ID);
-        if (requireKid && (!kid || !kid->asBstr())) {
-            return "Missing KID";
-        }
-
-        return key;
-    }
-
-    static ErrMsgOr<CoseKey> parseP256(const bytevec& coseKey) {
-        auto key = parse(coseKey, EC2, ES256, P256);
-        if (!key) return key;
-
-        auto& pubkey_x = key->getMap().get(PUBKEY_X);
-        auto& pubkey_y = key->getMap().get(PUBKEY_Y);
-        if (!pubkey_x || !pubkey_y || !pubkey_x->asBstr() || !pubkey_y->asBstr() ||
-            pubkey_x->asBstr()->value().size() != 32 || pubkey_y->asBstr()->value().size() != 32) {
-            return "Invalid P256 public key";
-        }
-
-        return key;
-    }
-
-    std::optional<int> getIntValue(Label label) {
-        const auto& value = key_->get(label);
-        if (!value || !value->asInt()) return {};
-        return value->asInt()->value();
-    }
-
-    std::optional<bytevec> getBstrValue(Label label) {
-        const auto& value = key_->get(label);
-        if (!value || !value->asBstr()) return {};
-        return value->asBstr()->value();
-    }
-
-    const cppbor::Map& getMap() const { return *key_; }
-    cppbor::Map&& moveMap() { return std::move(*key_); }
-
-    bool checkIntValue(Label label, int expectedValue) {
-        const auto& value = key_->get(label);
-        return value && value->asInt() && value->asInt()->value() == expectedValue;
-    }
-
-    void add(Label label, int value) { key_->add(label, value); }
-    void add(Label label, bytevec value) { key_->add(label, std::move(value)); }
-
-    bytevec encode() { return key_->canonicalize().encode(); }
-
-  private:
-    CoseKey(cppbor::Map* parsedKey) : key_(parsedKey) {}
-
-    // This is the full parsed key structure.
-    std::unique_ptr<cppbor::Map> key_;
-};
-
-ErrMsgOr<bytevec> generateCoseMac0Mac(const bytevec& macKey, const bytevec& externalAad,
-                                      const bytevec& payload);
-ErrMsgOr<cppbor::Array> constructCoseMac0(const bytevec& macKey, const bytevec& externalAad,
-                                          const bytevec& payload);
-ErrMsgOr<bytevec /* payload */> parseCoseMac0(const cppbor::Item* macItem);
-ErrMsgOr<bytevec /* payload */> verifyAndParseCoseMac0(const cppbor::Item* macItem,
-                                                       const bytevec& macKey);
-
-ErrMsgOr<bytevec> createCoseSign1Signature(const bytevec& key, const bytevec& protectedParams,
-                                           const bytevec& payload, const bytevec& aad);
-ErrMsgOr<cppbor::Array> constructCoseSign1(const bytevec& key, const bytevec& payload,
-                                           const bytevec& aad);
-ErrMsgOr<cppbor::Array> constructCoseSign1(const bytevec& key, cppbor::Map extraProtectedFields,
-                                           const bytevec& payload, const bytevec& aad);
-/**
- * Verify and parse a COSE_Sign1 message, returning the payload.
- *
- * @param ignoreSignature indicates whether signature verification should be skipped.  If true, no
- *        verification of the signature will be done.
- *
- * @param coseSign1 is the COSE_Sign1 to verify and parse.
- *
- * @param signingCoseKey is a CBOR-encoded COSE_Key to use to verify the signature.  The bytevec may
- *        be empty, in which case the function assumes that coseSign1's payload is the COSE_Key to
- *        use, i.e. that coseSign1 is a self-signed "certificate".
- */
-ErrMsgOr<bytevec /* payload */> verifyAndParseCoseSign1(bool ignoreSignature,
-                                                        const cppbor::Array* coseSign1,
-                                                        const bytevec& signingCoseKey,
-                                                        const bytevec& aad);
-
-ErrMsgOr<bytevec> createCoseEncryptCiphertext(const bytevec& key, const bytevec& nonce,
-                                              const bytevec& protectedParams, const bytevec& aad);
-ErrMsgOr<cppbor::Array> constructCoseEncrypt(const bytevec& key, const bytevec& nonce,
-                                             const bytevec& plaintextPayload, const bytevec& aad,
-                                             cppbor::Array recipients);
-ErrMsgOr<std::pair<bytevec /* pubkey */, bytevec /* key ID */>> getSenderPubKeyFromCoseEncrypt(
-        const cppbor::Item* encryptItem);
-inline ErrMsgOr<std::pair<bytevec /* pubkey */, bytevec /* key ID */>>
-getSenderPubKeyFromCoseEncrypt(const std::unique_ptr<cppbor::Item>& encryptItem) {
-    return getSenderPubKeyFromCoseEncrypt(encryptItem.get());
-}
-
-ErrMsgOr<bytevec /* plaintextPayload */> decryptCoseEncrypt(const bytevec& key,
-                                                            const cppbor::Item* encryptItem,
-                                                            const bytevec& aad);
-
-ErrMsgOr<bytevec> x25519_HKDF_DeriveKey(const bytevec& senderPubKey, const bytevec& senderPrivKey,
-                                        const bytevec& recipientPubKey, bool senderIsA);
-
-ErrMsgOr<bytevec /* ciphertextWithTag */> aesGcmEncrypt(const bytevec& key, const bytevec& nonce,
-                                                        const bytevec& aad,
-                                                        const bytevec& plaintext);
-ErrMsgOr<bytevec /* plaintext */> aesGcmDecrypt(const bytevec& key, const bytevec& nonce,
-                                                const bytevec& aad,
-                                                const bytevec& ciphertextWithTag);
-
-}  // namespace cppcose
diff --git a/security/keymint/support/include/keymint_support/keymint_tags.h b/security/keymint/support/include/keymint_support/keymint_tags.h
index ae21125..5b2a6f3 100644
--- a/security/keymint/support/include/keymint_support/keymint_tags.h
+++ b/security/keymint/support/include/keymint_support/keymint_tags.h
@@ -153,7 +153,7 @@
         TAG_RESET_SINCE_ID_ROTATION_t, TAG_PURPOSE_t, TAG_ALGORITHM_t, TAG_BLOCK_MODE_t,
         TAG_DIGEST_t, TAG_PADDING_t, TAG_ORIGIN_t, TAG_USER_AUTH_TYPE_t, TAG_EC_CURVE_t,
         TAG_BOOT_PATCHLEVEL_t, TAG_VENDOR_PATCHLEVEL_t, TAG_TRUSTED_CONFIRMATION_REQUIRED_t,
-        TAG_TRUSTED_USER_PRESENCE_REQUIRED_t>;
+        TAG_TRUSTED_USER_PRESENCE_REQUIRED_t, TAG_CERTIFICATE_SERIAL_t, TAG_CERTIFICATE_SUBJECT_t>;
 
 template <typename TypedTagType>
 struct TypedTag2ValueType;
diff --git a/security/keymint/support/include/remote_prov/remote_prov_utils.h b/security/keymint/support/include/remote_prov/remote_prov_utils.h
index 5e205a2..e4261f3 100644
--- a/security/keymint/support/include/remote_prov/remote_prov_utils.h
+++ b/security/keymint/support/include/remote_prov/remote_prov_utils.h
@@ -18,7 +18,7 @@
 
 #include <vector>
 
-#include <cppcose/cppcose.h>
+#include <keymaster/cppcose/cppcose.h>
 
 namespace aidl::android::hardware::security::keymint::remote_prov {
 
diff --git a/security/secureclock/aidl/android/hardware/security/secureclock/TimeStampToken.aidl b/security/secureclock/aidl/android/hardware/security/secureclock/TimeStampToken.aidl
index 71b4278..2fbd29a 100644
--- a/security/secureclock/aidl/android/hardware/security/secureclock/TimeStampToken.aidl
+++ b/security/secureclock/aidl/android/hardware/security/secureclock/TimeStampToken.aidl
@@ -43,7 +43,7 @@
      *
      * where:
      *
-     *   ``ISecureClock.TIME_STAMP_MAC_LABEL'' is a sting constant defined in ISecureClock.aidl.
+     *   ``ISecureClock.TIME_STAMP_MAC_LABEL'' is a string constant defined in ISecureClock.aidl.
      *
      *   ``H'' is the shared HMAC key (see computeSharedHmac() in ISharedSecret).
      *
diff --git a/vibrator/aidl/aidl_api/android.hardware.vibrator/current/android/hardware/vibrator/CompositeEffect.aidl b/vibrator/aidl/aidl_api/android.hardware.vibrator/current/android/hardware/vibrator/CompositeEffect.aidl
index 8cb259f..7431804 100644
--- a/vibrator/aidl/aidl_api/android.hardware.vibrator/current/android/hardware/vibrator/CompositeEffect.aidl
+++ b/vibrator/aidl/aidl_api/android.hardware.vibrator/current/android/hardware/vibrator/CompositeEffect.aidl
@@ -19,6 +19,6 @@
 @VintfStability
 parcelable CompositeEffect {
   int delayMs;
-  android.hardware.vibrator.CompositePrimitive primitive;
+  android.hardware.vibrator.CompositePrimitive primitive = android.hardware.vibrator.CompositePrimitive.NOOP;
   float scale;
 }
diff --git a/vibrator/aidl/android/hardware/vibrator/CompositeEffect.aidl b/vibrator/aidl/android/hardware/vibrator/CompositeEffect.aidl
index 406a899..5a990c0 100644
--- a/vibrator/aidl/android/hardware/vibrator/CompositeEffect.aidl
+++ b/vibrator/aidl/android/hardware/vibrator/CompositeEffect.aidl
@@ -22,7 +22,7 @@
 parcelable CompositeEffect {
     /* Period of silence preceding primitive. */
     int delayMs;
-    CompositePrimitive primitive;
+    CompositePrimitive primitive = CompositePrimitive.NOOP;
     /*
      * 0.0 (inclusive) - 1.0 (inclusive),
      * where 0.0 is minimum "feelable" amplitude.
diff --git a/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/IWeaver.aidl b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/IWeaver.aidl
index 29bd9a9..61627d9 100644
--- a/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/IWeaver.aidl
+++ b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/IWeaver.aidl
@@ -12,7 +12,8 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- *////////////////////////////////////////////////////////////////////////////////
+ */
+///////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
@@ -37,6 +38,6 @@
   android.hardware.weaver.WeaverReadResponse read(in int slotId, in byte[] key);
   void write(in int slotId, in byte[] key, in byte[] value);
   const int STATUS_FAILED = 1;
-  const int INCORRECT_KEY = 2;
-  const int THROTTLE = 3;
+  const int STATUS_INCORRECT_KEY = 2;
+  const int STATUS_THROTTLE = 3;
 }
diff --git a/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverConfig.aidl b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverConfig.aidl
index 239cdac..7491f32 100644
--- a/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverConfig.aidl
+++ b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverConfig.aidl
@@ -12,7 +12,8 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- *////////////////////////////////////////////////////////////////////////////////
+ */
+///////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
@@ -33,7 +34,7 @@
 package android.hardware.weaver;
 @VintfStability
 parcelable WeaverConfig {
-  long slots;
-  long keySize;
-  long valueSize;
+  int slots;
+  int keySize;
+  int valueSize;
 }
diff --git a/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadResponse.aidl b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadResponse.aidl
index 7e5db59..47ee4c8 100644
--- a/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadResponse.aidl
+++ b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadResponse.aidl
@@ -12,7 +12,8 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- *////////////////////////////////////////////////////////////////////////////////
+ */
+///////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/weaver/aidl/android/hardware/weaver/IWeaver.aidl b/weaver/aidl/android/hardware/weaver/IWeaver.aidl
index ebbfabe..f51034a 100644
--- a/weaver/aidl/android/hardware/weaver/IWeaver.aidl
+++ b/weaver/aidl/android/hardware/weaver/IWeaver.aidl
@@ -46,8 +46,8 @@
      * Read binder calls may return a ServiceSpecificException with the following error codes.
      */
     const int STATUS_FAILED = 1;
-    const int INCORRECT_KEY = 2;
-    const int THROTTLE = 3;
+    const int STATUS_INCORRECT_KEY = 2;
+    const int STATUS_THROTTLE = 3;
 
     /**
      * Attempts to retrieve the value stored in the identified slot.
diff --git a/weaver/aidl/android/hardware/weaver/WeaverConfig.aidl b/weaver/aidl/android/hardware/weaver/WeaverConfig.aidl
index 75d961e..a156a7b 100644
--- a/weaver/aidl/android/hardware/weaver/WeaverConfig.aidl
+++ b/weaver/aidl/android/hardware/weaver/WeaverConfig.aidl
@@ -21,14 +21,14 @@
     /**
      * The number of slots available.
      */
-    long slots;
+    int slots;
     /**
      * The number of bytes used for a key.
      */
-    long keySize;
+    int keySize;
     /**
      * The number of bytes used for a value.
      */
-    long valueSize;
+    int valueSize;
 }
 
diff --git a/weaver/aidl/vts/VtsHalWeaverTargetTest.cpp b/weaver/aidl/vts/VtsHalWeaverTargetTest.cpp
index 7d8daa2..878c762 100644
--- a/weaver/aidl/vts/VtsHalWeaverTargetTest.cpp
+++ b/weaver/aidl/vts/VtsHalWeaverTargetTest.cpp
@@ -156,7 +156,7 @@
 
     ASSERT_FALSE(readRet.isOk());
     ASSERT_EQ(EX_SERVICE_SPECIFIC, readRet.getExceptionCode());
-    ASSERT_EQ(IWeaver::INCORRECT_KEY, readRet.getServiceSpecificError());
+    ASSERT_EQ(IWeaver::STATUS_INCORRECT_KEY, readRet.getServiceSpecificError());
     EXPECT_TRUE(readValue.empty());
 }
 
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
index e4fe52c..bdca32c 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -25,6 +25,7 @@
 
 #include "supplicant_hidl_call_util.h"
 #include "supplicant_hidl_test_utils.h"
+#include <cutils/properties.h>
 
 using ::android::sp;
 using ::android::hardware::hidl_array;
@@ -61,7 +62,7 @@
 constexpr uint32_t kTestRadioWorkFrequency = 2412;
 constexpr uint32_t kTestRadioWorkTimeout = 8;
 constexpr uint32_t kTestRadioWorkId = 16;
-constexpr int8_t kTestCountryCode[] = {'U', 'S'};
+int8_t kTestCountryCode[] = {'U', 'S'};
 constexpr uint8_t kTestWpsDeviceType[] = {[0 ... 7] = 0x01};
 constexpr uint16_t kTestWpsConfigMethods = 0xffff;
 }  // namespace
@@ -454,6 +455,10 @@
  * SetCountryCode.
  */
 TEST_P(SupplicantStaIfaceHidlTest, SetCountryCode) {
+    std::array<char, PROPERTY_VALUE_MAX> buffer;
+    property_get("ro.boot.wificountrycode", buffer.data(), "US");
+    kTestCountryCode[0] = buffer.data()[0];
+    kTestCountryCode[1] = buffer.data()[1];
     sta_iface_->setCountryCode(
         kTestCountryCode, [](const SupplicantStatus& status) {
             EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);