Port IdentityCredential HAL to AIDL.
This includes add a partial types-only HAL for KeyMaster for
HardwareAuthToken.
Bug: 111446262
Test: atest android.security.identity.cts
Test: VtsHalIdentityTargetTest
Test: android.hardware.identity-support-lib-test
Change-Id: I7a6254d33200bfd62269aed1957cbb2a84b16272
diff --git a/identity/aidl/default/Util.h b/identity/aidl/default/Util.h
new file mode 100644
index 0000000..ee41ad1
--- /dev/null
+++ b/identity/aidl/default/Util.h
@@ -0,0 +1,58 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HARDWARE_IDENTITY_UTIL_H
+#define ANDROID_HARDWARE_IDENTITY_UTIL_H
+
+#include <aidl/android/hardware/identity/BnIdentityCredential.h>
+#include <android/hardware/identity/support/IdentityCredentialSupport.h>
+
+#include <map>
+#include <optional>
+#include <set>
+#include <string>
+#include <vector>
+
+#include <cppbor/cppbor.h>
+
+namespace aidl::android::hardware::identity {
+
+using ::std::optional;
+using ::std::string;
+using ::std::vector;
+
+// Returns the hardware-bound AES-128 key.
+const vector<uint8_t>& getHardwareBoundKey();
+
+// Calculates the MAC for |profile| using |storageKey|.
+optional<vector<uint8_t>> secureAccessControlProfileCalcMac(
+ const SecureAccessControlProfile& profile, const vector<uint8_t>& storageKey);
+
+// Checks authenticity of the MAC in |profile| using |storageKey|.
+bool secureAccessControlProfileCheckMac(const SecureAccessControlProfile& profile,
+ const vector<uint8_t>& storageKey);
+
+// Creates the AdditionalData CBOR used in the addEntryValue() HIDL method.
+vector<uint8_t> entryCreateAdditionalData(const string& nameSpace, const string& name,
+ const vector<int32_t> accessControlProfileIds);
+
+vector<uint8_t> byteStringToUnsigned(const vector<int8_t>& value);
+
+vector<int8_t> byteStringToSigned(const vector<uint8_t>& value);
+
+} // namespace aidl::android::hardware::identity
+
+#endif // ANDROID_HARDWARE_IDENTITY_UTIL_H