1 // Copyright (c) 2010 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 #ifndef CHROME_BROWSER_SYNC_UTIL_CRYPTO_HELPERS_H_ 6 #define CHROME_BROWSER_SYNC_UTIL_CRYPTO_HELPERS_H_ 7 #pragma once 8 9 #include <string> 10 #include <vector> 11 12 // An object to handle calculation of MD5 sums. 13 #include "base/basictypes.h" 14 #include "base/md5.h" 15 #include "base/port.h" 16 17 class MD5Calculator { 18 protected: 19 MD5Context context_; 20 std::vector<uint8> bin_digest_; 21 22 void CalcDigest(); 23 public: 24 MD5Calculator(); 25 ~MD5Calculator(); 26 void AddData(const uint8* data, int length); AddData(const char * data,int length)27 void AddData(const char* data, int length) { 28 AddData(reinterpret_cast<const uint8*>(data), length); 29 } 30 std::string GetHexDigest(); 31 const std::vector<uint8>& GetDigest(); 32 private: 33 DISALLOW_COPY_AND_ASSIGN(MD5Calculator); 34 }; 35 36 void GetRandomBytes(char* output, int output_length); 37 std::string Generate128BitRandomHexString(); 38 39 #endif // CHROME_BROWSER_SYNC_UTIL_CRYPTO_HELPERS_H_ 40