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47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Common values for SHA-1 algorithms
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*/
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#ifndef _CRYPTO_SHA1_H
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#define _CRYPTO_SHA1_H
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#include <linux/types.h>
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#define SHA1_DIGEST_SIZE 20
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#define SHA1_BLOCK_SIZE 64
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#define SHA1_H0 0x67452301UL
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#define SHA1_H1 0xefcdab89UL
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#define SHA1_H2 0x98badcfeUL
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#define SHA1_H3 0x10325476UL
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#define SHA1_H4 0xc3d2e1f0UL
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extern const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE];
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struct sha1_state {
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u32 state[SHA1_DIGEST_SIZE / 4];
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u64 count;
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u8 buffer[SHA1_BLOCK_SIZE];
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};
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struct shash_desc;
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extern int crypto_sha1_update(struct shash_desc *desc, const u8 *data,
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unsigned int len);
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extern int crypto_sha1_finup(struct shash_desc *desc, const u8 *data,
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unsigned int len, u8 *hash);
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/*
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* An implementation of SHA-1's compression function. Don't use in new code!
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* You shouldn't be using SHA-1, and even if you *have* to use SHA-1, this isn't
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* the correct way to hash something with SHA-1 (use crypto_shash instead).
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*/
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#define SHA1_DIGEST_WORDS (SHA1_DIGEST_SIZE / 4)
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#define SHA1_WORKSPACE_WORDS 16
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void sha1_init(__u32 *buf);
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void sha1_transform(__u32 *digest, const char *data, __u32 *W);
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#endif /* _CRYPTO_SHA1_H */
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