| /** @file sha_256.h |
| * |
| * @brief This file contains the SHA256 hash implementation and interface functions |
| * |
| * Copyright (C) 2014, 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); |
| |
| /** |
| * sha256_compress - Compress 512-bits. |
| * @md: Pointer to the element holding hash state. |
| * @msgBuf: Pointer to the buffer containing the data to be hashed. |
| * @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 |
| * @num_elem: Number of elements in the data vector |
| * @addr: Pointers to the data areas |
| * @len: Lengths of the data blocks |
| * @mac: Buffer for the hash |
| * @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) |
| * @key: Key for HMAC operations |
| * @key_len: Length of the key in bytes |
| * @num_elem: Number of elements in the data vector; including [0] |
| * @addr: Pointers to the data areas, [0] element must be left as spare |
| * @len: Lengths of the data blocks, [0] element must be left as spare |
| * @mac: Buffer for the hash (32 bytes) |
| * @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 */ |
