1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef CLEARKEY_AES_CTR_DECRYPTOR_H_
18 #define CLEARKEY_AES_CTR_DECRYPTOR_H_
19 
20 #include <media/stagefright/foundation/ABase.h>
21 #include <Utils.h>
22 #include <utils/Errors.h>
23 #include <utils/Vector.h>
24 
25 #include "ClearKeyTypes.h"
26 
27 namespace clearkeydrm {
28 
29 class AesCtrDecryptor {
30 public:
AesCtrDecryptor()31     AesCtrDecryptor() {}
32 
33     android::status_t decrypt(const android::Vector<uint8_t>& key, const Iv iv,
34             const uint8_t* source, uint8_t* destination,
35             const SubSample* subSamples, size_t numSubSamples,
36             size_t* bytesDecryptedOut);
37 
38 private:
39     DISALLOW_EVIL_CONSTRUCTORS(AesCtrDecryptor);
40 };
41 
42 } // namespace clearkeydrm
43 
44 #endif // CLEARKEY_AES_CTR_DECRYPTOR_H_
45