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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_AUTH_UTIL_H_
#define REMOTING_PROTOCOL_AUTH_UTIL_H_
#include <string>
#include "base/strings/string_piece.h"
namespace net {
class SSLSocket;
} // namespace net
namespace remoting {
namespace protocol {
// Labels for use when exporting the SSL master keys.
extern const char kClientAuthSslExporterLabel[];
extern const char kHostAuthSslExporterLabel[];
// Fake hostname used for SSL connections.
extern const char kSslFakeHostName[];
// Size of the HMAC-SHA-256 hash used as shared secret in SPAKE2.
const size_t kSharedSecretHashLength = 32;
// Size of the HMAC-SHA-256 digest used for channel authentication.
const size_t kAuthDigestLength = 32;
// TODO(sergeyu): The following two methods are used for V1
// authentication. Remove them when we finally switch to V2
// authentication method. crbug.com/110483 .
// Generates auth token for the specified |jid| and |access_code|.
std::string GenerateSupportAuthToken(const std::string& jid,
const std::string& access_code);
// Verifies validity of an |access_token|.
bool VerifySupportAuthToken(const std::string& jid,
const std::string& access_code,
const std::string& auth_token);
// Returns authentication bytes that must be used for the given
// |socket|. Empty string is returned in case of failure.
std::string GetAuthBytes(net::SSLSocket* socket,
const base::StringPiece& label,
const base::StringPiece& shared_secret);
} // namespace protocol
} // namespace remoting
#endif // REMOTING_PROTOCOL_AUTH_UTIL_H_
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