1 // Copyright (c) 2011 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 <stddef.h> 6 7 #include "crypto/secure_util.h" 8 9 namespace crypto { 10 11 bool SecureMemEqual(const void* s1, const void* s2, size_t n) { 12 const unsigned char* s1_ptr = reinterpret_cast<const unsigned char*>(s1); 13 const unsigned char* s2_ptr = reinterpret_cast<const unsigned char*>(s2); 14 unsigned char tmp = 0; 15 for (size_t i = 0; i < n; ++i, ++s1_ptr, ++s2_ptr) 16 tmp |= *s1_ptr ^ *s2_ptr; 17 return (tmp == 0); 18 } 19 20 } // namespace crypto 21 22
