1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "remoting/host/pin_hash.h" 6 7 #include "base/base64.h" 8 #include "base/logging.h" 9 #include "remoting/protocol/authentication_method.h" 10 #include "remoting/protocol/me2me_host_authenticator_factory.h" 11 12 namespace remoting { 13 14 std::string MakeHostPinHash(const std::string& host_id, 15 const std::string& pin) { 16 std::string hash = protocol::AuthenticationMethod::ApplyHashFunction( 17 protocol::AuthenticationMethod::HMAC_SHA256, host_id, pin); 18 std::string hash_base64; 19 base::Base64Encode(hash, &hash_base64); 20 return "hmac:" + hash_base64; 21 } 22 23 bool VerifyHostPinHash(const std::string& hash, 24 const std::string& host_id, 25 const std::string& pin) { 26 remoting::protocol::SharedSecretHash hash_parsed; 27 if (!hash_parsed.Parse(hash)) { 28 LOG(FATAL) << "Invalid hash."; 29 return false; 30 } 31 std::string hash_calculated = 32 remoting::protocol::AuthenticationMethod::ApplyHashFunction( 33 hash_parsed.hash_function, host_id, pin); 34 return hash_calculated == hash_parsed.value; 35 } 36 37 } // namespace remoting 38
