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 */ |
47 | |