1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Common values for SHA-1 algorithms 4 */ 5 6 #ifndef _CRYPTO_SHA1_H 7 #define _CRYPTO_SHA1_H 8 9 #include <linux/types.h> 10 11 #define SHA1_DIGEST_SIZE 20 12 #define SHA1_BLOCK_SIZE 64 13 #define SHA1_STATE_SIZE offsetof(struct sha1_state, buffer) 14 15 #define SHA1_H0 0x67452301UL 16 #define SHA1_H1 0xefcdab89UL 17 #define SHA1_H2 0x98badcfeUL 18 #define SHA1_H3 0x10325476UL 19 #define SHA1_H4 0xc3d2e1f0UL 20 21 extern const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE]; 22 23 struct sha1_state { 24 u32 state[SHA1_DIGEST_SIZE / 4]; 25 u64 count; 26 u8 buffer[SHA1_BLOCK_SIZE]; 27 }; 28 29 /* 30 * An implementation of SHA-1's compression function. Don't use in new code! 31 * You shouldn't be using SHA-1, and even if you *have* to use SHA-1, this isn't 32 * the correct way to hash something with SHA-1 (use crypto_shash instead). 33 */ 34 #define SHA1_DIGEST_WORDS (SHA1_DIGEST_SIZE / 4) 35 #define SHA1_WORKSPACE_WORDS 16 36 void sha1_init(__u32 *buf); 37 void sha1_transform(__u32 *digest, const char *data, __u32 *W); 38 39 #endif /* _CRYPTO_SHA1_H */ 40