1 // Copyright 2014 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 "net/spdy/hpack_string_util.h" 6 7 #include "base/basictypes.h" 8 9 namespace net { 10 StringPiecesEqualConstantTime(base::StringPiece str1,base::StringPiece str2)11bool StringPiecesEqualConstantTime(base::StringPiece str1, 12 base::StringPiece str2) { 13 size_t size = str1.size(); 14 if (str2.size() != size) 15 return false; 16 17 uint8 x = 0; 18 for (size_t i = 0; i < size; ++i) { 19 x |= str1[i] ^ str2[i]; 20 } 21 return x == 0; 22 } 23 24 } // namespace net 25