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// Copyright (c) 2012 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 REMOTING_PROTOCOL_V2_AUTHENTICATOR_H_
#define REMOTING_PROTOCOL_V2_AUTHENTICATOR_H_
#include <memory>
#include <queue>
#include <string>
#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "crypto/p224_spake.h"
#include "remoting/protocol/authenticator.h"
namespace remoting {
class RsaKeyPair;
namespace protocol {
class V2Authenticator : public Authenticator {
public:
static bool IsEkeMessage(const buzz::XmlElement* message);
static std::unique_ptr<Authenticator> CreateForClient(
const std::string& shared_secret,
State initial_state);
static std::unique_ptr<Authenticator> CreateForHost(
const std::string& local_cert,
scoped_refptr<RsaKeyPair> key_pair,
const std::string& shared_secret,
State initial_state);
~V2Authenticator() override;
// Authenticator interface.
State state() const override;
bool started() const override;
RejectionReason rejection_reason() const override;
void ProcessMessage(const buzz::XmlElement* message,
const base::Closure& resume_callback) override;
std::unique_ptr<buzz::XmlElement> GetNextMessage() override;
const std::string& GetAuthKey() const override;
std::unique_ptr<ChannelAuthenticator> CreateChannelAuthenticator()
const override;
private:
FRIEND_TEST_ALL_PREFIXES(V2AuthenticatorTest, InvalidSecret);
V2Authenticator(crypto::P224EncryptedKeyExchange::PeerType type,
const std::string& shared_secret,
State initial_state);
virtual void ProcessMessageInternal(const buzz::XmlElement* message);
bool is_host_side() const;
// Used only for host authenticators.
std::string local_cert_;
scoped_refptr<RsaKeyPair> local_key_pair_;
bool certificate_sent_;
// Used only for client authenticators.
std::string remote_cert_;
// Used for both host and client authenticators.
crypto::P224EncryptedKeyExchange key_exchange_impl_;
State state_;
bool started_;
RejectionReason rejection_reason_;
std::queue<std::string> pending_messages_;
std::string auth_key_;
DISALLOW_COPY_AND_ASSIGN(V2Authenticator);
};
} // namespace protocol
} // namespace remoting
#endif // REMOTING_PROTOCOL_V2_AUTHENTICATOR_H_
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