diff --git a/security/secureclock/aidl/Android.bp b/security/secureclock/aidl/Android.bp
index c78be3b..b70dda9 100644
--- a/security/secureclock/aidl/Android.bp
+++ b/security/secureclock/aidl/Android.bp
@@ -28,4 +28,5 @@
             enabled: true,
         },
     },
+    versions: ["1"],
 }
diff --git a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/.hash b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/.hash
new file mode 100644
index 0000000..f6b25a0
--- /dev/null
+++ b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/.hash
@@ -0,0 +1 @@
+cd55ca9963c6a57fa5f2f120a45c6e0c4fafb423
diff --git a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/android/hardware/security/secureclock/ISecureClock.aidl b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/android/hardware/security/secureclock/ISecureClock.aidl
new file mode 100644
index 0000000..4ecc1e4
--- /dev/null
+++ b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/android/hardware/security/secureclock/ISecureClock.aidl
@@ -0,0 +1,39 @@
+/*
+ * 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.
+ * 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.secureclock;
+/* @hide */
+@VintfStability
+interface ISecureClock {
+  android.hardware.security.secureclock.TimeStampToken generateTimeStamp(in long challenge);
+  const String TIME_STAMP_MAC_LABEL = "Auth Verification";
+}
diff --git a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/android/hardware/security/secureclock/TimeStampToken.aidl b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/android/hardware/security/secureclock/TimeStampToken.aidl
new file mode 100644
index 0000000..d105ac8
--- /dev/null
+++ b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/android/hardware/security/secureclock/TimeStampToken.aidl
@@ -0,0 +1,41 @@
+/*
+ * 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.secureclock;
+/* @hide */
+@RustDerive(Clone=true, Eq=true, Hash=true, Ord=true, PartialEq=true, PartialOrd=true) @VintfStability
+parcelable TimeStampToken {
+  long challenge;
+  android.hardware.security.secureclock.Timestamp timestamp;
+  byte[] mac;
+}
diff --git a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/android/hardware/security/secureclock/Timestamp.aidl b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/android/hardware/security/secureclock/Timestamp.aidl
new file mode 100644
index 0000000..2e0e389
--- /dev/null
+++ b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/1/android/hardware/security/secureclock/Timestamp.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright 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.secureclock;
+/* @hide */
+@RustDerive(Clone=true, Eq=true, Hash=true, Ord=true, PartialEq=true, PartialOrd=true) @VintfStability
+parcelable Timestamp {
+  long milliSeconds;
+}