162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Common values for SHA-1 algorithms 462306a36Sopenharmony_ci */ 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci#ifndef _CRYPTO_SHA1_H 762306a36Sopenharmony_ci#define _CRYPTO_SHA1_H 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#include <linux/types.h> 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#define SHA1_DIGEST_SIZE 20 1262306a36Sopenharmony_ci#define SHA1_BLOCK_SIZE 64 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci#define SHA1_H0 0x67452301UL 1562306a36Sopenharmony_ci#define SHA1_H1 0xefcdab89UL 1662306a36Sopenharmony_ci#define SHA1_H2 0x98badcfeUL 1762306a36Sopenharmony_ci#define SHA1_H3 0x10325476UL 1862306a36Sopenharmony_ci#define SHA1_H4 0xc3d2e1f0UL 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ciextern const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE]; 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_cistruct sha1_state { 2362306a36Sopenharmony_ci u32 state[SHA1_DIGEST_SIZE / 4]; 2462306a36Sopenharmony_ci u64 count; 2562306a36Sopenharmony_ci u8 buffer[SHA1_BLOCK_SIZE]; 2662306a36Sopenharmony_ci}; 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_cistruct shash_desc; 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ciextern int crypto_sha1_update(struct shash_desc *desc, const u8 *data, 3162306a36Sopenharmony_ci unsigned int len); 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ciextern int crypto_sha1_finup(struct shash_desc *desc, const u8 *data, 3462306a36Sopenharmony_ci unsigned int len, u8 *hash); 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci/* 3762306a36Sopenharmony_ci * An implementation of SHA-1's compression function. Don't use in new code! 3862306a36Sopenharmony_ci * You shouldn't be using SHA-1, and even if you *have* to use SHA-1, this isn't 3962306a36Sopenharmony_ci * the correct way to hash something with SHA-1 (use crypto_shash instead). 4062306a36Sopenharmony_ci */ 4162306a36Sopenharmony_ci#define SHA1_DIGEST_WORDS (SHA1_DIGEST_SIZE / 4) 4262306a36Sopenharmony_ci#define SHA1_WORKSPACE_WORDS 16 4362306a36Sopenharmony_civoid sha1_init(__u32 *buf); 4462306a36Sopenharmony_civoid sha1_transform(__u32 *digest, const char *data, __u32 *W); 4562306a36Sopenharmony_ci 4662306a36Sopenharmony_ci#endif /* _CRYPTO_SHA1_H */ 47