/** @file sha_256.h
|
*
|
* @brief This file contains the SHA256 hash implementation and interface functions
|
*
|
* Copyright (C) 2014-2017, Marvell International Ltd.
|
*
|
* This software file (the "File") is distributed by Marvell International
|
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
|
* (the "License"). You may use, redistribute and/or modify this File in
|
* accordance with the terms and conditions of the License, a copy of which
|
* is available by writing to the Free Software Foundation, Inc.,
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
|
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
|
*
|
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
|
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
|
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
|
* this warranty disclaimer.
|
*/
|
|
/******************************************************
|
Change log:
|
03/07/2014: Initial version
|
******************************************************/
|
#ifndef SHA256_H
|
#define SHA256_H
|
|
#include "wltypes.h"
|
|
#define SHA256_MAC_LEN 32
|
#define HMAC_SHA256_MIN_SCRATCH_BUF (500)
|
#define SHA256_MIN_SCRATCH_BUF (400)
|
|
struct sha256_state {
|
UINT64 length;
|
UINT32 state[8], curlen;
|
UINT8 buf[64];
|
};
|
|
void sha256_init(struct sha256_state *md);
|
|
/**
|
* @brief sha256_compress - Compress 512-bits.
|
* @param priv pointer to previous element
|
* @param md: Pointer to the element holding hash state.
|
* @param msgBuf: Pointer to the buffer containing the data to be hashed.
|
* @param pScratchMem: Scratch memory; At least 288 bytes of free memory *
|
*
|
*/
|
int sha256_compress(void *priv, struct sha256_state *md,
|
UINT8 *msgBuf, UINT8 *pScratchMem);
|
|
/**
|
* sha256_vector - SHA256 hash for data vector
|
* @param num_elem: Number of elements in the data vector
|
* @param addr: Pointers to the data areas
|
* @param len: Lengths of the data blocks
|
* @param mac: Buffer for the hash
|
* @param pScratchMem: Scratch memory; Buffer of SHA256_MIN_SCRATCH_BUF size
|
*/
|
void sha256_vector(void *priv, size_t num_elem,
|
UINT8 *addr[], size_t * len, UINT8 *mac, UINT8 *pScratchMem);
|
|
/**
|
* hmac_sha256_vector - HMAC-SHA256 over data vector (RFC 2104)
|
* @param key: Key for HMAC operations
|
* @param key_len: Length of the key in bytes
|
* @param num_elem: Number of elements in the data vector; including [0]
|
* @param addr: Pointers to the data areas, [0] element must be left as spare
|
* @param len: Lengths of the data blocks, [0] element must be left as spare
|
* @param mac: Buffer for the hash (32 bytes)
|
* @param pScratchMem: Scratch Memory; Buffer of HMAC_SHA256_MIN_SCRATCH_BUF size
|
*/
|
void hmac_sha256_vector(void *priv, UINT8 *key,
|
size_t key_len,
|
size_t num_elem,
|
UINT8 *addr[],
|
size_t * len, UINT8 *mac, UINT8 *pScratchMem);
|
|
#endif /* SHA256_H */
|
