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/* Copyright 2016 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "dcrypto.h"
/* Constant time comparator. */
int DCRYPTO_equals(const void *a, const void *b, size_t len)
{
size_t i;
const uint8_t *pa = a;
const uint8_t *pb = b;
uint8_t diff = 0;
for (i = 0; i < len; i++)
diff |= pa[i] ^ pb[i];
return !diff;
}
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