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.
5 #ifndef MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_
6 #define MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_
8 // Helper class to handle encryption for the Cast Transport library.
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"
24 class TransportEncryptionHandler : public base::NonThreadSafe {
26 TransportEncryptionHandler();
27 ~TransportEncryptionHandler();
29 bool Initialize(std::string aes_key, std::string aes_iv_mask);
31 bool Encrypt(uint32 frame_id,
32 const base::StringPiece& data,
33 std::string* encrypted_data);
35 bool Decrypt(uint32 frame_id,
36 const base::StringPiece& ciphertext,
37 std::string* plaintext);
39 bool is_activated() const { return is_activated_; }
42 scoped_ptr<crypto::SymmetricKey> key_;
43 scoped_ptr<crypto::Encryptor> encryptor_;
47 DISALLOW_COPY_AND_ASSIGN(TransportEncryptionHandler);
53 #endif // MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_