68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/* $OpenBSD: blake2s.h,v 1.3 2023/02/03 18:31:16 miod Exp $ */
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/*
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* Copyright (C) 2015-2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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* Copyright (C) 2019-2020 Matt Dunwoodie <ncon@noconroy.net>.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#ifndef _BLAKE2S_H_
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#define _BLAKE2S_H_
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enum blake2s_lengths {
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BLAKE2S_BLOCK_SIZE = 64,
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BLAKE2S_HASH_SIZE = 32,
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BLAKE2S_KEY_SIZE = 32
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};
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struct blake2s_state {
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uint32_t h[8];
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uint32_t t[2];
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uint32_t f[2];
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uint8_t buf[BLAKE2S_BLOCK_SIZE];
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unsigned int buflen;
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unsigned int outlen;
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};
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void blake2s_init(struct blake2s_state *state, const size_t outlen);
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void blake2s_init_key(struct blake2s_state *state, const size_t outlen,
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const void *key, const size_t keylen);
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void blake2s_update(struct blake2s_state *state, const uint8_t *in, size_t inlen);
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void blake2s_final(struct blake2s_state *state, uint8_t *out);
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static inline void blake2s(
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uint8_t *out, const uint8_t *in, const uint8_t *key,
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const size_t outlen, const size_t inlen, const size_t keylen)
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{
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struct blake2s_state state;
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KASSERT((in != NULL || inlen == 0) &&
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out != NULL && outlen <= BLAKE2S_HASH_SIZE &&
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(key != NULL || keylen == 0) && keylen <= BLAKE2S_KEY_SIZE);
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if (keylen)
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blake2s_init_key(&state, outlen, key, keylen);
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else
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blake2s_init(&state, outlen);
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blake2s_update(&state, in, inlen);
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blake2s_final(&state, out);
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}
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void blake2s_hmac(uint8_t *out, const uint8_t *in, const uint8_t *key,
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const size_t outlen, const size_t inlen, const size_t keylen);
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#endif /* _BLAKE2S_H_ */
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