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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_
#define MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_
// Helper class to handle encryption for the Cast Transport library.
#include <stdint.h>
#include <string>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/string_piece.h"
#include "base/threading/non_thread_safe.h"
namespace crypto {
class Encryptor;
class SymmetricKey;
}
namespace media {
namespace cast {
class TransportEncryptionHandler : public base::NonThreadSafe {
public:
TransportEncryptionHandler();
~TransportEncryptionHandler();
bool Initialize(const std::string& aes_key, const std::string& aes_iv_mask);
bool Encrypt(uint32_t frame_id,
const base::StringPiece& data,
std::string* encrypted_data);
bool Decrypt(uint32_t frame_id,
const base::StringPiece& ciphertext,
std::string* plaintext);
bool is_activated() const { return is_activated_; }
private:
scoped_ptr<crypto::SymmetricKey> key_;
scoped_ptr<crypto::Encryptor> encryptor_;
std::string iv_mask_;
bool is_activated_;
DISALLOW_COPY_AND_ASSIGN(TransportEncryptionHandler);
};
} // namespace cast
} // namespace media
#endif // MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_
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