642965c678
No-Typo-Check: Not related to this change. Bug: 161477208 Change-Id: I99e4780f6855b7045aa0cd5a49c13d2d0d51ed64
30 lines
940 B
C
30 lines
940 B
C
// Copyright 2019 Google LLC. All rights reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine
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// License Agreement.
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#ifndef WIDEVINE_ODK_SRC_ODK_UTIL_H_
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#define WIDEVINE_ODK_SRC_ODK_UTIL_H_
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#include <stddef.h>
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#include <stdint.h>
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#include "odk_structs.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* crypto_memcmp returns zero iff the |len| bytes at |a| and |b| are equal. It
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* takes an amount of time dependent on |len|, but independent of the contents
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* of |a| and |b|. Unlike memcmp, it cannot be used to order elements as the
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* return value when a != b is undefined, other than being non-zero. */
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int crypto_memcmp(const void* a, const void* b, size_t len);
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bool ODK_NonceValuesEqualExcludingVersion(const ODK_NonceValues* a,
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const ODK_NonceValues* b);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // WIDEVINE_ODK_SRC_ODK_UTIL_H_
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