47 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Common values for SHA-1 algorithms4 */5 6#ifndef _CRYPTO_SHA1_H7#define _CRYPTO_SHA1_H8 9#include <linux/types.h>10 11#define SHA1_DIGEST_SIZE 2012#define SHA1_BLOCK_SIZE 6413 14#define SHA1_H0 0x67452301UL15#define SHA1_H1 0xefcdab89UL16#define SHA1_H2 0x98badcfeUL17#define SHA1_H3 0x10325476UL18#define SHA1_H4 0xc3d2e1f0UL19 20extern const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE];21 22struct sha1_state {23 u32 state[SHA1_DIGEST_SIZE / 4];24 u64 count;25 u8 buffer[SHA1_BLOCK_SIZE];26};27 28struct shash_desc;29 30extern int crypto_sha1_update(struct shash_desc *desc, const u8 *data,31 unsigned int len);32 33extern int crypto_sha1_finup(struct shash_desc *desc, const u8 *data,34 unsigned int len, u8 *hash);35 36/*37 * An implementation of SHA-1's compression function. Don't use in new code!38 * You shouldn't be using SHA-1, and even if you *have* to use SHA-1, this isn't39 * the correct way to hash something with SHA-1 (use crypto_shash instead).40 */41#define SHA1_DIGEST_WORDS (SHA1_DIGEST_SIZE / 4)42#define SHA1_WORKSPACE_WORDS 1643void sha1_init(__u32 *buf);44void sha1_transform(__u32 *digest, const char *data, __u32 *W);45 46#endif /* _CRYPTO_SHA1_H */47