Upstream version 9.38.198.0
[platform/framework/web/crosswalk.git] / src / media / cast / common / transport_encryption_handler.h
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_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_
6 #define MEDIA_CAST_COMMON_TRANSPORT_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
24 class TransportEncryptionHandler : public base::NonThreadSafe {
25  public:
26   TransportEncryptionHandler();
27   ~TransportEncryptionHandler();
28
29   bool Initialize(std::string aes_key, std::string aes_iv_mask);
30
31   bool Encrypt(uint32 frame_id,
32                const base::StringPiece& data,
33                std::string* encrypted_data);
34
35   bool Decrypt(uint32 frame_id,
36                const base::StringPiece& ciphertext,
37                std::string* plaintext);
38
39   bool is_activated() const { return is_activated_; }
40
41  private:
42   scoped_ptr<crypto::SymmetricKey> key_;
43   scoped_ptr<crypto::Encryptor> encryptor_;
44   std::string iv_mask_;
45   bool is_activated_;
46
47   DISALLOW_COPY_AND_ASSIGN(TransportEncryptionHandler);
48 };
49
50 }  // namespace cast
51 }  // namespace media
52
53 #endif  // MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_