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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_ | 5 #ifndef MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_ |
6 #define MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_ | 6 #define MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_ |
7 | 7 |
8 // Helper class to handle encryption for the Cast Transport library. | 8 // Helper class to handle encryption for the Cast Transport library. |
9 | 9 |
10 #include <stdint.h> | 10 #include <stdint.h> |
11 | 11 |
12 #include <memory> | 12 #include <memory> |
13 #include <string> | 13 #include <string> |
14 | 14 |
15 #include "base/macros.h" | 15 #include "base/macros.h" |
16 #include "base/strings/string_piece.h" | 16 #include "base/strings/string_piece.h" |
17 #include "base/threading/non_thread_safe.h" | |
18 #include "media/cast/common/frame_id.h" | 17 #include "media/cast/common/frame_id.h" |
19 | 18 |
20 namespace crypto { | 19 namespace crypto { |
21 class Encryptor; | 20 class Encryptor; |
22 class SymmetricKey; | 21 class SymmetricKey; |
23 } | 22 } |
24 | 23 |
25 namespace media { | 24 namespace media { |
26 namespace cast { | 25 namespace cast { |
27 | 26 |
28 class TransportEncryptionHandler : public base::NonThreadSafe { | 27 class TransportEncryptionHandler { |
29 public: | 28 public: |
30 TransportEncryptionHandler(); | 29 TransportEncryptionHandler(); |
31 ~TransportEncryptionHandler(); | 30 ~TransportEncryptionHandler(); |
32 | 31 |
33 bool Initialize(const std::string& aes_key, const std::string& aes_iv_mask); | 32 bool Initialize(const std::string& aes_key, const std::string& aes_iv_mask); |
34 | 33 |
35 bool Encrypt(FrameId frame_id, | 34 bool Encrypt(FrameId frame_id, |
36 const base::StringPiece& data, | 35 const base::StringPiece& data, |
37 std::string* encrypted_data); | 36 std::string* encrypted_data); |
38 | 37 |
39 bool Decrypt(FrameId frame_id, | 38 bool Decrypt(FrameId frame_id, |
40 const base::StringPiece& ciphertext, | 39 const base::StringPiece& ciphertext, |
41 std::string* plaintext); | 40 std::string* plaintext); |
42 | 41 |
43 bool is_activated() const { return is_activated_; } | 42 bool is_activated() const { return is_activated_; } |
44 | 43 |
45 private: | 44 private: |
46 std::unique_ptr<crypto::SymmetricKey> key_; | 45 std::unique_ptr<crypto::SymmetricKey> key_; |
47 std::unique_ptr<crypto::Encryptor> encryptor_; | 46 std::unique_ptr<crypto::Encryptor> encryptor_; |
48 std::string iv_mask_; | 47 std::string iv_mask_; |
49 bool is_activated_; | 48 bool is_activated_; |
50 | 49 |
51 DISALLOW_COPY_AND_ASSIGN(TransportEncryptionHandler); | 50 DISALLOW_COPY_AND_ASSIGN(TransportEncryptionHandler); |
52 }; | 51 }; |
53 | 52 |
54 } // namespace cast | 53 } // namespace cast |
55 } // namespace media | 54 } // namespace media |
56 | 55 |
57 #endif // MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_ | 56 #endif // MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_ |
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