blob: 6643060b641d2b1c60b63dcb416760e09d77cd6b [file] [log] [blame]
// 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 <memory>
#include <string>
#include "base/macros.h"
#include "base/strings/string_piece.h"
#include "media/cast/common/frame_id.h"
namespace crypto {
class Encryptor;
class SymmetricKey;
}
namespace media {
namespace cast {
class TransportEncryptionHandler {
public:
TransportEncryptionHandler();
TransportEncryptionHandler(const TransportEncryptionHandler&) = delete;
TransportEncryptionHandler& operator=(const TransportEncryptionHandler&) =
delete;
~TransportEncryptionHandler();
bool Initialize(const std::string& aes_key, const std::string& aes_iv_mask);
bool Encrypt(FrameId frame_id,
const base::StringPiece& data,
std::string* encrypted_data);
bool Decrypt(FrameId frame_id,
const base::StringPiece& ciphertext,
std::string* plaintext);
bool is_activated() const { return is_activated_; }
private:
std::unique_ptr<crypto::SymmetricKey> key_;
std::unique_ptr<crypto::Encryptor> encryptor_;
std::string iv_mask_;
bool is_activated_;
};
} // namespace cast
} // namespace media
#endif // MEDIA_CAST_COMMON_TRANSPORT_ENCRYPTION_HANDLER_H_