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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 | ||
14 | #define SHA1_H0 0x67452301UL | |
15 | #define SHA1_H1 0xefcdab89UL | |
16 | #define SHA1_H2 0x98badcfeUL | |
17 | #define SHA1_H3 0x10325476UL | |
18 | #define SHA1_H4 0xc3d2e1f0UL | |
19 | ||
20 | extern const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE]; | |
21 | ||
22 | struct sha1_state { | |
23 | u32 state[SHA1_DIGEST_SIZE / 4]; | |
24 | u64 count; | |
25 | u8 buffer[SHA1_BLOCK_SIZE]; | |
26 | }; | |
27 | ||
28 | struct shash_desc; | |
29 | ||
30 | extern int crypto_sha1_update(struct shash_desc *desc, const u8 *data, | |
31 | unsigned int len); | |
32 | ||
33 | extern 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't | |
39 | * 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 16 | |
43 | void sha1_init(__u32 *buf); | |
44 | void sha1_transform(__u32 *digest, const char *data, __u32 *W); | |
45 | ||
46 | #endif /* _CRYPTO_SHA1_H */ |