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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef MEDIA_CAST_TRANSPORT_TRANSPORT_UTILITY_ENCRYPTION_HANDLER_H_ | |
6 #define MEDIA_CAST_TRANSPORT_TRANSPORT_UTILITY_ENCRYPTION_HANDLER_H_ | |
7 | |
8 // Helper class to handle encryption for the Cast Transport library. | |
9 #include <string> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "base/strings/string_piece.h" | |
14 #include "base/threading/non_thread_safe.h" | |
15 | |
16 namespace crypto { | |
17 class Encryptor; | |
18 class SymmetricKey; | |
19 } | |
20 | |
21 namespace media { | |
22 namespace cast { | |
23 namespace transport { | |
24 | |
25 class TransportEncryptionHandler : public base::NonThreadSafe { | |
26 public: | |
27 TransportEncryptionHandler(); | |
28 ~TransportEncryptionHandler(); | |
29 | |
30 bool Initialize(std::string aes_key, std::string aes_iv_mask); | |
31 | |
32 bool Encrypt(uint32 frame_id, | |
33 const base::StringPiece& data, | |
34 std::string* encrypted_data); | |
35 | |
36 bool Decrypt(uint32 frame_id, | |
37 const base::StringPiece& ciphertext, | |
38 std::string* plaintext); | |
39 | |
40 bool is_activated() const { return is_activated_; } | |
41 | |
42 private: | |
43 scoped_ptr<crypto::SymmetricKey> key_; | |
44 scoped_ptr<crypto::Encryptor> encryptor_; | |
45 std::string iv_mask_; | |
46 bool is_activated_; | |
47 | |
48 DISALLOW_COPY_AND_ASSIGN(TransportEncryptionHandler); | |
49 }; | |
50 | |
51 } // namespace transport | |
52 } // namespace cast | |
53 } // namespace media | |
54 | |
55 #endif // MEDIA_CAST_TRANSPORT_TRANSPORT_UTILITY_ENCRYPTION_HANDLER_H_ | |
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