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      1 /*	$NetBSD: blake2s.h,v 1.1 2020/08/20 21:21:05 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2015 Taylor R. Campbell
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef	_CRYPTO_BLAKE2_BLAKE2S_H
     30 #define	_CRYPTO_BLAKE2_BLAKE2S_H
     31 
     32 #ifdef _KERNEL
     33 #include <sys/types.h>
     34 #else
     35 #include <stddef.h>
     36 #include <stdint.h>
     37 #endif
     38 
     39 struct blake2s {
     40 	uint8_t		b[64];	/* 64-byte buffer */
     41 	uint32_t	h[8];	/* 32-byte state */
     42 	uint64_t	c;	/* 64-bit input byte counter */
     43 	uint8_t		nb;	/* number of bytes in buffer */
     44 	uint8_t		dlen;	/* digest length */
     45 };
     46 
     47 #define	BLAKE2S_MAX_DIGEST	32
     48 #define	BLAKE2S_MAX_KEY		32
     49 
     50 void	blake2s_init(struct blake2s *, size_t, const void *, size_t);
     51 void	blake2s_update(struct blake2s *, const void *, size_t);
     52 void	blake2s_final(struct blake2s *, void *);
     53 void	blake2s(void *, size_t, const void *, size_t, const void *, size_t);
     54 int	blake2s_selftest(void);
     55 
     56 #endif	/* _CRYPTO_BLAKE2_BLAKE2S_H */
     57