/* Copyright 2014 The ChromiumOS Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 *
 * Very simple 8-bit CRC function.
 */

#ifndef VBOOT_REFERENCE_2CRC8_H_
#define VBOOT_REFERENCE_2CRC8_H_

#include "2sysincludes.h"

/**
 * Calculate CRC-8 of the data, using the ITU version.
 *
 * Calculate CRC-8 ITU version of the given buffer, using x^8 + x^2 + x + 1
 * polynomial.  Note that the CRC-8 will evaluate to zero for a buffer of all
 * zeroes.
 *
 * @param data		Data to CRC
 * @param size		Size of data in bytes
 * @return CRC-8 of the data.
 */
uint8_t vb2_crc8(const void *data, uint32_t size);

#endif  /* VBOOT_REFERENCE_2CRC8_H_ */
