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 if (!base::Base64Encode(hash, &hash_base64)) { 20 LOG(FATAL) << "Base64Encode failed"; 21 } 22 return "hmac:" + hash_base64; 23 } 24 25 bool VerifyHostPinHash(const std::string& hash, 26 const std::string& host_id, 27 const std::string& pin) { 28 remoting::protocol::SharedSecretHash hash_parsed; 29 if (!hash_parsed.Parse(hash)) { 30 LOG(FATAL) << "Invalid hash."; 31 return false; 32 } 33 std::string hash_calculated = 34 remoting::protocol::AuthenticationMethod::ApplyHashFunction( 35 hash_parsed.hash_function, host_id, pin); 36 return hash_calculated == hash_parsed.value; 37 } 38 39 } // namespace remoting 40
