Add Unit Tests for ClearKey Plugin

Change-Id: I0008a01d29ade169df9a0fd30ca0303adf9ecad3

5 files changed, 665 insertions, 2 deletions

diff --git a/drm/mediadrm/plugins/clearkey/Android.mk b/drm/mediadrm/plugins/clearkey/Android.mk
index c0492e7..716b945 100644
--- a/drm/mediadrm/plugins/clearkey/Android.mk
+++ b/drm/mediadrm/plugins/clearkey/Android.mk
@@ -18,8 +18,6 @@ include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := \
     AesCtrDecryptor.cpp \
-    InitDataParser.cpp \
-    JsonWebKey.cpp \
     ClearKeyUUID.cpp \
     CreatePluginFactories.cpp \
     CryptoFactory.cpp \
diff --git a/drm/mediadrm/plugins/clearkey/tests/AesCtrDecryptorUnittest.cpp b/drm/mediadrm/plugins/clearkey/tests/AesCtrDecryptorUnittest.cpp
new file mode 100644
index 0000000..039e402
--- /dev/null
+++ b/drm/mediadrm/plugins/clearkey/tests/AesCtrDecryptorUnittest.cpp
@@ -0,0 +1,421 @@
+/*
+ * Copyright (C) 2014 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 <gtest/gtest.h>
+#include <string.h>
+
+#include <utils/String8.h>
+#include <utils/Vector.h>
+
+#include "AesCtrDecryptor.h"
+
+namespace clearkeydrm {
+
+using namespace android;
+
+class AesCtrDecryptorTest : public ::testing::Test {
+  protected:
+    typedef uint8_t Key[kBlockSize];
+
+    status_t attemptDecrypt(const Key& key, const Iv& iv, const uint8_t* source,
+                            uint8_t* destination, const SubSample* subSamples,
+                            size_t numSubSamples, size_t* bytesDecryptedOut) {
+        Vector<uint8_t> keyVector;
+        keyVector.appendArray(key, kBlockSize);
+
+        AesCtrDecryptor decryptor;
+        return decryptor.decrypt(keyVector, iv, source, destination, subSamples,
+                                 numSubSamples, bytesDecryptedOut);
+    }
+
+    template <size_t totalSize>
+    void attemptDecryptExpectingSuccess(const Key& key, const Iv& iv,
+                                        const uint8_t* encrypted,
+                                        const uint8_t* decrypted,
+                                        const SubSample* subSamples,
+                                        size_t numSubSamples) {
+        uint8_t outputBuffer[totalSize] = {};
+        size_t bytesDecrypted = 0;
+        ASSERT_EQ(android::OK, attemptDecrypt(key, iv, encrypted, outputBuffer,
+                                              subSamples, numSubSamples,
+                                              &bytesDecrypted));
+        EXPECT_EQ(totalSize, bytesDecrypted);
+        EXPECT_EQ(0, memcmp(outputBuffer, decrypted, totalSize));
+    }
+};
+
+TEST_F(AesCtrDecryptorTest, DecryptsContiguousEncryptedBlock) {
+    const size_t kTotalSize = 64;
+    const size_t kNumSubsamples = 1;
+
+    // Test vectors from NIST-800-38A
+    Key key = {
+        0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+        0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
+    };
+
+    Iv iv = {
+        0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+        0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+    };
+
+    uint8_t encrypted[kTotalSize] = {
+        0x87, 0x4d, 0x61, 0x91, 0xb6, 0x20, 0xe3, 0x26,
+        0x1b, 0xef, 0x68, 0x64, 0x99, 0x0d, 0xb6, 0xce,
+        0x98, 0x06, 0xf6, 0x6b, 0x79, 0x70, 0xfd, 0xff,
+        0x86, 0x17, 0x18, 0x7b, 0xb9, 0xff, 0xfd, 0xff,
+        0x5a, 0xe4, 0xdf, 0x3e, 0xdb, 0xd5, 0xd3, 0x5e,
+        0x5b, 0x4f, 0x09, 0x02, 0x0d, 0xb0, 0x3e, 0xab,
+        0x1e, 0x03, 0x1d, 0xda, 0x2f, 0xbe, 0x03, 0xd1,
+        0x79, 0x21, 0x70, 0xa0, 0xf3, 0x00, 0x9c, 0xee
+    };
+
+    uint8_t decrypted[kTotalSize] = {
+        0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+        0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+        0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+        0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+        0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+        0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+        0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+        0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+    };
+
+    SubSample subSamples[kNumSubsamples] = {
+        {0, 64}
+    };
+
+    attemptDecryptExpectingSuccess<kTotalSize>(key, iv, encrypted, decrypted,
+                                               subSamples, kNumSubsamples);
+}
+
+TEST_F(AesCtrDecryptorTest, DecryptsAlignedBifurcatedEncryptedBlock) {
+    const size_t kTotalSize = 64;
+    const size_t kNumSubsamples = 2;
+
+    // Test vectors from NIST-800-38A
+    Key key = {
+        0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+        0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
+    };
+
+    Iv iv = {
+        0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+        0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+    };
+
+    uint8_t encrypted[kTotalSize] = {
+        0x87, 0x4d, 0x61, 0x91, 0xb6, 0x20, 0xe3, 0x26,
+        0x1b, 0xef, 0x68, 0x64, 0x99, 0x0d, 0xb6, 0xce,
+        0x98, 0x06, 0xf6, 0x6b, 0x79, 0x70, 0xfd, 0xff,
+        0x86, 0x17, 0x18, 0x7b, 0xb9, 0xff, 0xfd, 0xff,
+        0x5a, 0xe4, 0xdf, 0x3e, 0xdb, 0xd5, 0xd3, 0x5e,
+        0x5b, 0x4f, 0x09, 0x02, 0x0d, 0xb0, 0x3e, 0xab,
+        0x1e, 0x03, 0x1d, 0xda, 0x2f, 0xbe, 0x03, 0xd1,
+        0x79, 0x21, 0x70, 0xa0, 0xf3, 0x00, 0x9c, 0xee
+    };
+
+    uint8_t decrypted[kTotalSize] = {
+        0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+        0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+        0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+        0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+        0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+        0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+        0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+        0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+    };
+
+    SubSample subSamples[kNumSubsamples] = {
+        {0, 32},
+        {0, 32}
+    };
+
+    attemptDecryptExpectingSuccess<kTotalSize>(key, iv, encrypted, decrypted,
+                                               subSamples, kNumSubsamples);
+}
+
+TEST_F(AesCtrDecryptorTest, DecryptsUnalignedBifurcatedEncryptedBlock) {
+    const size_t kTotalSize = 64;
+    const size_t kNumSubsamples = 2;
+
+    // Test vectors from NIST-800-38A
+    Key key = {
+        0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+        0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
+    };
+
+    Iv iv = {
+        0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+        0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+    };
+
+    uint8_t encrypted[kTotalSize] = {
+        0x87, 0x4d, 0x61, 0x91, 0xb6, 0x20, 0xe3, 0x26,
+        0x1b, 0xef, 0x68, 0x64, 0x99, 0x0d, 0xb6, 0xce,
+        0x98, 0x06, 0xf6, 0x6b, 0x79, 0x70, 0xfd, 0xff,
+        0x86, 0x17, 0x18, 0x7b, 0xb9, 0xff, 0xfd, 0xff,
+        0x5a, 0xe4, 0xdf, 0x3e, 0xdb, 0xd5, 0xd3, 0x5e,
+        0x5b, 0x4f, 0x09, 0x02, 0x0d, 0xb0, 0x3e, 0xab,
+        0x1e, 0x03, 0x1d, 0xda, 0x2f, 0xbe, 0x03, 0xd1,
+        0x79, 0x21, 0x70, 0xa0, 0xf3, 0x00, 0x9c, 0xee
+    };
+
+    uint8_t decrypted[kTotalSize] = {
+        0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+        0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+        0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+        0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+        0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+        0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+        0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+        0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+    };
+
+    SubSample subSamples[kNumSubsamples] = {
+        {0, 29},
+        {0, 35}
+    };
+
+    attemptDecryptExpectingSuccess<kTotalSize>(key, iv, encrypted, decrypted,
+                                               subSamples, kNumSubsamples);
+}
+
+TEST_F(AesCtrDecryptorTest, DecryptsOneMixedSubSample) {
+    const size_t kTotalSize = 72;
+    const size_t kNumSubsamples = 1;
+
+    // Based on test vectors from NIST-800-38A
+    Key key = {
+        0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+        0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
+    };
+
+    Iv iv = {
+        0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+        0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+    };
+
+    uint8_t encrypted[kTotalSize] = {
+        // 8 clear bytes
+        0xf0, 0x13, 0xca, 0xc7, 0x00, 0x64, 0x0b, 0xbb,
+        // 64 encrypted bytes
+        0x87, 0x4d, 0x61, 0x91, 0xb6, 0x20, 0xe3, 0x26,
+        0x1b, 0xef, 0x68, 0x64, 0x99, 0x0d, 0xb6, 0xce,
+        0x98, 0x06, 0xf6, 0x6b, 0x79, 0x70, 0xfd, 0xff,
+        0x86, 0x17, 0x18, 0x7b, 0xb9, 0xff, 0xfd, 0xff,
+        0x5a, 0xe4, 0xdf, 0x3e, 0xdb, 0xd5, 0xd3, 0x5e,
+        0x5b, 0x4f, 0x09, 0x02, 0x0d, 0xb0, 0x3e, 0xab,
+        0x1e, 0x03, 0x1d, 0xda, 0x2f, 0xbe, 0x03, 0xd1,
+        0x79, 0x21, 0x70, 0xa0, 0xf3, 0x00, 0x9c, 0xee
+    };
+
+    uint8_t decrypted[kTotalSize] = {
+        0xf0, 0x13, 0xca, 0xc7, 0x00, 0x64, 0x0b, 0xbb,
+        0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+        0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+        0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+        0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+        0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+        0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+        0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+        0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+    };
+
+    SubSample subSamples[kNumSubsamples] = {
+        {8, 64}
+    };
+
+    attemptDecryptExpectingSuccess<kTotalSize>(key, iv, encrypted, decrypted,
+                                               subSamples, kNumSubsamples);
+}
+
+TEST_F(AesCtrDecryptorTest, DecryptsAlignedMixedSubSamples) {
+    const size_t kTotalSize = 80;
+    const size_t kNumSubsamples = 2;
+
+    // Based on test vectors from NIST-800-38A
+    Key key = {
+        0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+        0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
+    };
+
+    Iv iv = {
+        0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+        0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+    };
+
+    uint8_t encrypted[kTotalSize] = {
+        // 8 clear bytes
+        0xf0, 0x13, 0xca, 0xc7, 0x00, 0x64, 0x0b, 0xbb,
+        // 32 encrypted bytes
+        0x87, 0x4d, 0x61, 0x91, 0xb6, 0x20, 0xe3, 0x26,
+        0x1b, 0xef, 0x68, 0x64, 0x99, 0x0d, 0xb6, 0xce,
+        0x98, 0x06, 0xf6, 0x6b, 0x79, 0x70, 0xfd, 0xff,
+        0x86, 0x17, 0x18, 0x7b, 0xb9, 0xff, 0xfd, 0xff,
+        // 8 clear bytes
+        0x94, 0xba, 0x88, 0x2e, 0x0e, 0x12, 0x11, 0x55,
+        // 32 encrypted bytes
+        0x5a, 0xe4, 0xdf, 0x3e, 0xdb, 0xd5, 0xd3, 0x5e,
+        0x5b, 0x4f, 0x09, 0x02, 0x0d, 0xb0, 0x3e, 0xab,
+        0x1e, 0x03, 0x1d, 0xda, 0x2f, 0xbe, 0x03, 0xd1,
+        0x79, 0x21, 0x70, 0xa0, 0xf3, 0x00, 0x9c, 0xee
+    };
+
+    uint8_t decrypted[kTotalSize] = {
+        0xf0, 0x13, 0xca, 0xc7, 0x00, 0x64, 0x0b, 0xbb,
+        0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+        0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+        0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+        0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+        0x94, 0xba, 0x88, 0x2e, 0x0e, 0x12, 0x11, 0x55,
+        0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+        0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+        0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+        0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+    };
+
+    SubSample subSamples[kNumSubsamples] = {
+        {8, 32},
+        {8, 32}
+    };
+
+    attemptDecryptExpectingSuccess<kTotalSize>(key, iv, encrypted, decrypted,
+                                               subSamples, kNumSubsamples);
+}
+
+TEST_F(AesCtrDecryptorTest, DecryptsUnalignedMixedSubSamples) {
+    const size_t kTotalSize = 80;
+    const size_t kNumSubsamples = 2;
+
+    // Based on test vectors from NIST-800-38A
+    Key key = {
+        0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+        0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
+    };
+
+    Iv iv = {
+        0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+        0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+    };
+
+    uint8_t encrypted[kTotalSize] = {
+        // 8 clear bytes
+        0xf0, 0x13, 0xca, 0xc7, 0x00, 0x64, 0x0b, 0xbb,
+        // 30 encrypted bytes
+        0x87, 0x4d, 0x61, 0x91, 0xb6, 0x20, 0xe3, 0x26,
+        0x1b, 0xef, 0x68, 0x64, 0x99, 0x0d, 0xb6, 0xce,
+        0x98, 0x06, 0xf6, 0x6b, 0x79, 0x70, 0xfd, 0xff,
+        0x86, 0x17, 0x18, 0x7b, 0xb9, 0xff,
+        // 8 clear bytes
+        0x94, 0xba, 0x88, 0x2e, 0x0e, 0x12, 0x11, 0x55,
+        // 34 encrypted bytes
+        0xfd, 0xff, 0x5a, 0xe4, 0xdf, 0x3e, 0xdb, 0xd5,
+        0xd3, 0x5e, 0x5b, 0x4f, 0x09, 0x02, 0x0d, 0xb0,
+        0x3e, 0xab, 0x1e, 0x03, 0x1d, 0xda, 0x2f, 0xbe,
+        0x03, 0xd1, 0x79, 0x21, 0x70, 0xa0, 0xf3, 0x00,
+        0x9c, 0xee
+    };
+
+    uint8_t decrypted[kTotalSize] = {
+        0xf0, 0x13, 0xca, 0xc7, 0x00, 0x64, 0x0b, 0xbb,
+        0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+        0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+        0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+        0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x94, 0xba,
+        0x88, 0x2e, 0x0e, 0x12, 0x11, 0x55, 0x8e, 0x51,
+        0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+        0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+        0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+        0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+    };
+
+    SubSample subSamples[kNumSubsamples] = {
+        {8, 30},
+        {8, 34}
+    };
+
+    attemptDecryptExpectingSuccess<kTotalSize>(key, iv, encrypted, decrypted,
+                                               subSamples, kNumSubsamples);
+}
+
+TEST_F(AesCtrDecryptorTest, DecryptsComplexMixedSubSamples) {
+    const size_t kTotalSize = 72;
+    const size_t kNumSubsamples = 6;
+
+    // Based on test vectors from NIST-800-38A
+    Key key = {
+        0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+        0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
+    };
+
+    Iv iv = {
+        0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+        0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+    };
+
+    uint8_t encrypted[kTotalSize] = {
+        // 4 clear bytes
+        0xf0, 0x13, 0xca, 0xc7,
+        // 1 encrypted bytes
+        0x87,
+        // 9 encrypted bytes
+        0x4d, 0x61, 0x91, 0xb6, 0x20, 0xe3, 0x26, 0x1b,
+        0xef,
+        // 11 clear bytes
+        0x81, 0x4f, 0x24, 0x87, 0x0e, 0xde, 0xba, 0xad,
+        0x11, 0x9b, 0x46,
+        // 20 encrypted bytes
+        0x68, 0x64, 0x99, 0x0d, 0xb6, 0xce,
+        0x98, 0x06, 0xf6, 0x6b, 0x79, 0x70, 0xfd, 0xff,
+        0x86, 0x17, 0x18, 0x7b, 0xb9, 0xff,
+        // 8 clear bytes
+        0x94, 0xba, 0x88, 0x2e, 0x0e, 0x12, 0x11, 0x55,
+        // 3 clear bytes
+        0x10, 0xf5, 0x22,
+        // 14 encrypted bytes
+        0xfd, 0xff, 0x5a, 0xe4, 0xdf, 0x3e, 0xdb, 0xd5,
+        0xd3, 0x5e, 0x5b, 0x4f, 0x09, 0x02,
+        // 2 clear bytes
+        0x02, 0x01
+    };
+
+    uint8_t decrypted[kTotalSize] = {
+        0xf0, 0x13, 0xca, 0xc7, 0x6b, 0xc1, 0xbe, 0xe2,
+        0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x81, 0x4f,
+        0x24, 0x87, 0x0e, 0xde, 0xba, 0xad, 0x11, 0x9b,
+        0x46, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, 0xae,
+        0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e,
+        0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x94, 0xba, 0x88,
+        0x2e, 0x0e, 0x12, 0x11, 0x55, 0x10, 0xf5, 0x22,
+        0x8e, 0x51, 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c,
+        0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x02, 0x01
+    };
+
+    SubSample subSamples[kNumSubsamples] = {
+        {4, 1},
+        {0, 9},
+        {11, 20},
+        {8, 0},
+        {3, 14},
+        {2, 0}
+    };
+
+    attemptDecryptExpectingSuccess<kTotalSize>(key, iv, encrypted, decrypted,
+                                               subSamples, kNumSubsamples);
+}
+
+}  // namespace clearkeydrm
diff --git a/drm/mediadrm/plugins/clearkey/tests/Android.mk b/drm/mediadrm/plugins/clearkey/tests/Android.mk
index c12cd9f..0c895ea 100644
--- a/drm/mediadrm/plugins/clearkey/tests/Android.mk
+++ b/drm/mediadrm/plugins/clearkey/tests/Android.mk
@@ -22,5 +22,13 @@ test_name := JsonWebKeyUnittest
 test_src_dir := .
 include $(LOCAL_PATH)/unit-test.mk
 
+test_name := AesCtrDecryptorUnittest
+test_src_dir := .
+include $(LOCAL_PATH)/unit-test.mk
+
+test_name := InitDataParserUnittest
+test_src_dir := .
+include $(LOCAL_PATH)/unit-test.mk
+
 test_name :=
 test_src_dir :=
diff --git a/drm/mediadrm/plugins/clearkey/tests/InitDataParserUnittest.cpp b/drm/mediadrm/plugins/clearkey/tests/InitDataParserUnittest.cpp
new file mode 100644
index 0000000..4ba65ed
--- /dev/null
+++ b/drm/mediadrm/plugins/clearkey/tests/InitDataParserUnittest.cpp
@@ -0,0 +1,235 @@
+/*
+ * Copyright (C) 2014 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 <gtest/gtest.h>
+#include <string.h>
+
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/base64.h>
+#include <utils/String8.h>
+#include <utils/Vector.h>
+
+#include "InitDataParser.h"
+
+namespace clearkeydrm {
+
+using namespace android;
+
+namespace {
+    const size_t kKeyIdSize = 16;
+    const String8 kCencType("cenc");
+    const String8 kWebMType("webm");
+    const String8 kBase64Padding("=");
+}
+
+class InitDataParserTest : public ::testing::Test {
+  protected:
+    status_t attemptParse(const Vector<uint8_t>& initData,
+                          const String8& initDataType,
+                          Vector<uint8_t>* licenseRequest) {
+        InitDataParser parser;
+        return parser.parse(initData, initDataType, licenseRequest);
+    }
+
+    void attemptParseExpectingSuccess(const Vector<uint8_t>& initData,
+                                      const String8& initDataType,
+                                      const Vector<String8>& expectedKeys) {
+        const String8 kRequestPrefix("{\"kids\":[");
+        const String8 kRequestSuffix("],\"type\":\"temporary\"}");
+        Vector<uint8_t> request;
+        ASSERT_EQ(android::OK, attemptParse(initData, initDataType, &request));
+
+        String8 requestString(reinterpret_cast<const char*>(request.array()),
+                              request.size());
+        EXPECT_EQ(0, requestString.find(kRequestPrefix));
+        EXPECT_EQ(requestString.size() - kRequestSuffix.size(),
+                  requestString.find(kRequestSuffix));
+        for (size_t i = 0; i < expectedKeys.size(); ++i) {
+            AString encodedIdAString;
+            android::encodeBase64(expectedKeys[i], kKeyIdSize,
+                                  &encodedIdAString);
+            String8 encodedId(encodedIdAString.c_str());
+            encodedId.removeAll(kBase64Padding);
+            EXPECT_TRUE(requestString.contains(encodedId));
+        }
+    }
+
+    void attemptParseExpectingFailure(const Vector<uint8_t>& initData,
+                                      const String8& initDataType) {
+        Vector<uint8_t> request;
+        ASSERT_NE(android::OK, attemptParse(initData, initDataType, &request));
+        EXPECT_EQ(0, request.size());
+    }
+};
+
+TEST_F(InitDataParserTest, ParsesSingleKeyPssh) {
+    uint8_t pssh[52] = {
+        0, 0, 0, 52,                                    // Total Size
+        'p', 's', 's', 'h',                             // PSSH
+        1, 0, 0, 0,                                     // Version
+        0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
+        0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
+        0, 0, 0, 1,                                     // Key Count
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
+        0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, //   "01234567890ABCDE"
+        0, 0, 0, 0                                      // Data Size (always 0)
+    };
+    Vector<uint8_t> initData;
+    initData.appendArray(pssh, 52);
+
+    Vector<String8> expectedKeys;
+    expectedKeys.push(String8("01234567890ABCDE"));
+
+    attemptParseExpectingSuccess(initData, kCencType, expectedKeys);
+}
+
+TEST_F(InitDataParserTest, ParsesMultipleKeyPssh) {
+    uint8_t pssh[84] = {
+        0, 0, 0, 84,                                    // Total Size
+        'p', 's', 's', 'h',                             // PSSH
+        1, 0, 0, 0,                                     // Version
+        0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
+        0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
+        0, 0, 0, 3,                                     // Key Count
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
+        0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, //   "01234567890ABCDE"
+        0x43, 0x6c, 0x65, 0x61, 0x72, 0x4b, 0x65, 0x79, // Key ID #2
+        0x43, 0x6c, 0x65, 0x61, 0x72, 0x4b, 0x65, 0x79, //   "ClearKeyClearKey"
+        0x20, 0x47, 0x4f, 0x4f, 0x47, 0x4c, 0x45, 0x20, // Key ID #3
+        0x20, 0x47, 0x4f, 0x4f, 0x47, 0x4c, 0x45, 0x20, //   " GOOGLE  GOOGLE "
+        0, 0, 0, 0                                      // Data Size (always 0)
+    };
+    Vector<uint8_t> initData;
+    initData.appendArray(pssh, 84);
+
+    Vector<String8> expectedKeys;
+    expectedKeys.push(String8("01234567890ABCDE"));
+    expectedKeys.push(String8("ClearKeyClearKey"));
+    expectedKeys.push(String8(" GOOGLE  GOOGLE "));
+
+    attemptParseExpectingSuccess(initData, kCencType, expectedKeys);
+}
+
+TEST_F(InitDataParserTest, ParsesWebM) {
+    uint8_t initDataRaw[16] = {
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID
+        0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, //   "01234567890ABCDE"
+    };
+    Vector<uint8_t> initData;
+    initData.appendArray(initDataRaw, 16);
+
+    Vector<String8> expectedKeys;
+    expectedKeys.push(String8("01234567890ABCDE"));
+
+    attemptParseExpectingSuccess(initData, kWebMType, expectedKeys);
+}
+
+TEST_F(InitDataParserTest, FailsForPsshTooSmall) {
+    uint8_t pssh[16] = {
+        0, 0, 0, 52,
+        'p', 's', 's', 'h',
+        1, 0, 0, 0,
+        0x10, 0x77, 0xef, 0xec
+    };
+    Vector<uint8_t> initData;
+    initData.appendArray(pssh, 16);
+
+    attemptParseExpectingFailure(initData, kCencType);
+}
+
+TEST_F(InitDataParserTest, FailsForWebMTooSmall) {
+    uint8_t initDataRaw[8] = {
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37
+    };
+    Vector<uint8_t> initData;
+    initData.appendArray(initDataRaw, 8);
+
+    attemptParseExpectingFailure(initData, kWebMType);
+}
+
+TEST_F(InitDataParserTest, FailsForPsshBadSystemId) {
+    uint8_t pssh[52] = {
+        0, 0, 0, 52,                                    // Total Size
+        'p', 's', 's', 'h',                             // PSSH
+        1, 0, 0, 0,                                     // Version
+        0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b, // System ID
+        0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02,
+        0, 0, 0, 1,                                     // Key Count
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
+        0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, //   "01234567890ABCDE"
+        0, 0, 0, 0                                      // Data Size (always 0)
+    };
+    Vector<uint8_t> initData;
+    initData.appendArray(pssh, 52);
+
+    attemptParseExpectingFailure(initData, kCencType);
+}
+
+TEST_F(InitDataParserTest, FailsForPsshBadSize) {
+    uint8_t pssh[52] = {
+        0, 0, 70, 200,                                  // Total Size
+        'p', 's', 's', 'h',                             // PSSH
+        1, 0, 0, 0,                                     // Version
+        0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
+        0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
+        0, 0, 0, 1,                                     // Key Count
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
+        0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, //   "01234567890ABCDE"
+        0, 0, 0, 0                                      // Data Size (always 0)
+    };
+    Vector<uint8_t> initData;
+    initData.appendArray(pssh, 52);
+
+    attemptParseExpectingFailure(initData, kCencType);
+}
+
+TEST_F(InitDataParserTest, FailsForPsshWrongVersion) {
+    uint8_t pssh[52] = {
+        0, 0, 0, 52,                                    // Total Size
+        'p', 's', 's', 'h',                             // PSSH
+        0, 0, 0, 0,                                     // Version
+        0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
+        0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
+        0, 0, 0, 1,                                     // Key Count
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
+        0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, //   "01234567890ABCDE"
+        0, 0, 0, 0                                      // Data Size (always 0)
+    };
+    Vector<uint8_t> initData;
+    initData.appendArray(pssh, 52);
+
+    attemptParseExpectingFailure(initData, kCencType);
+}
+
+TEST_F(InitDataParserTest, FailsForPsshBadKeyCount) {
+    uint8_t pssh[52] = {
+        0, 0, 0, 52,                                    // Total Size
+        'p', 's', 's', 'h',                             // PSSH
+        1, 0, 0, 0,                                     // Version
+        0x10, 0x77, 0xef, 0xec, 0xc0, 0xb2, 0x4d, 0x02, // System ID
+        0xac, 0xe3, 0x3c, 0x1e, 0x52, 0xe2, 0xfb, 0x4b,
+        0, 0, 0, 7,                                     // Key Count
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, // Key ID #1
+        0x38, 0x39, 0x30, 0x41, 0x42, 0x43, 0x44, 0x45, //   "01234567890ABCDE"
+        0, 0, 0, 0                                      // Data Size (always 0)
+    };
+    Vector<uint8_t> initData;
+    initData.appendArray(pssh, 52);
+
+    attemptParseExpectingFailure(initData, kCencType);
+}
+
+}  // namespace clearkeydrm
diff --git a/drm/mediadrm/plugins/clearkey/tests/unit-test.mk b/drm/mediadrm/plugins/clearkey/tests/unit-test.mk
index 6afb5a3..7504f34 100644
--- a/drm/mediadrm/plugins/clearkey/tests/unit-test.mk
+++ b/drm/mediadrm/plugins/clearkey/tests/unit-test.mk
@@ -45,6 +45,7 @@ LOCAL_SHARED_LIBRARIES := \
     libcrypto \
     libdrmclearkeyplugin \
     liblog \
+    libstagefright_foundation \
     libstlport \
     libutils \