| // Copyright 2011 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <stddef.h> |
| |
| #include "crypto/secure_util.h" |
| |
| namespace crypto { |
| |
| bool SecureMemEqual(const void* s1, const void* s2, size_t n) { |
| const unsigned char* s1_ptr = reinterpret_cast<const unsigned char*>(s1); |
| const unsigned char* s2_ptr = reinterpret_cast<const unsigned char*>(s2); |
| unsigned char tmp = 0; |
| for (size_t i = 0; i < n; ++i, ++s1_ptr, ++s2_ptr) |
| tmp |= *s1_ptr ^ *s2_ptr; |
| return (tmp == 0); |
| } |
| |
| } // namespace crypto |
| |