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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 COMPONENTS_CRYPTAUTH_SESSION_KEYS_H_
#define COMPONENTS_CRYPTAUTH_SESSION_KEYS_H_
#include <string>
#include "base/macros.h"
namespace cryptauth {
// This class contains the secure channel (secure context) session keys. This
// class derives (from the master symmetric key) different keys for encryption
// and decryption. The protocol initiator (i.e. the Chromebook) should use
// |initiator_encode_key()| to encrypt the messages, and the responder should
// use |responder_encode_key()|. This is reversed for decryption.
class SessionKeys {
public:
// Create session keys derived from the |master_symmetric_key|.
explicit SessionKeys(const std::string& master_symmetric_key);
SessionKeys();
virtual ~SessionKeys();
virtual std::string initiator_encode_key() const;
virtual std::string responder_encode_key() const;
private:
// The initiator encoding key.
std::string initiator_encode_key_;
// The responder encoding key.
std::string responder_encode_key_;
};
} // namespace cryptauth
#endif // COMPONENTS_CRYPTAUTH_SESSION_KEYS_H_
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