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      1 /*	$NetBSD: sha3.h,v 1.1 2017/11/30 05:47:24 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	_SHA3_H
     30 #define	_SHA3_H
     31 
     32 #include <sys/types.h>
     33 #include <sys/cdefs.h>
     34 
     35 struct sha3 {
     36 	uint64_t A[25];
     37 	unsigned nb;		/* number of bytes remaining to fill buffer */
     38 };
     39 
     40 typedef struct { struct sha3 C224; } SHA3_224_CTX;
     41 typedef struct { struct sha3 C256; } SHA3_256_CTX;
     42 typedef struct { struct sha3 C384; } SHA3_384_CTX;
     43 typedef struct { struct sha3 C512; } SHA3_512_CTX;
     44 typedef struct { struct sha3 C128; } SHAKE128_CTX;
     45 typedef struct { struct sha3 C256; } SHAKE256_CTX;
     46 
     47 #define	SHA3_224_DIGEST_LENGTH	28
     48 #define	SHA3_256_DIGEST_LENGTH	32
     49 #define	SHA3_384_DIGEST_LENGTH	48
     50 #define	SHA3_512_DIGEST_LENGTH	64
     51 
     52 __BEGIN_DECLS
     53 void	SHA3_224_Init(SHA3_224_CTX *);
     54 void	SHA3_224_Update(SHA3_224_CTX *, const uint8_t *, size_t);
     55 void	SHA3_224_Final(uint8_t[SHA3_224_DIGEST_LENGTH], SHA3_224_CTX *);
     56 
     57 void	SHA3_256_Init(SHA3_256_CTX *);
     58 void	SHA3_256_Update(SHA3_256_CTX *, const uint8_t *, size_t);
     59 void	SHA3_256_Final(uint8_t[SHA3_256_DIGEST_LENGTH], SHA3_256_CTX *);
     60 
     61 void	SHA3_384_Init(SHA3_384_CTX *);
     62 void	SHA3_384_Update(SHA3_384_CTX *, const uint8_t *, size_t);
     63 void	SHA3_384_Final(uint8_t[SHA3_384_DIGEST_LENGTH], SHA3_384_CTX *);
     64 
     65 void	SHA3_512_Init(SHA3_512_CTX *);
     66 void	SHA3_512_Update(SHA3_512_CTX *, const uint8_t *, size_t);
     67 void	SHA3_512_Final(uint8_t[SHA3_512_DIGEST_LENGTH], SHA3_512_CTX *);
     68 
     69 void	SHAKE128_Init(SHAKE128_CTX *);
     70 void	SHAKE128_Update(SHAKE128_CTX *, const uint8_t *, size_t);
     71 void	SHAKE128_Final(uint8_t *, size_t, SHAKE128_CTX *);
     72 
     73 void	SHAKE256_Init(SHAKE256_CTX *);
     74 void	SHAKE256_Update(SHAKE256_CTX *, const uint8_t *, size_t);
     75 void	SHAKE256_Final(uint8_t *, size_t, SHAKE256_CTX *);
     76 
     77 int	SHA3_Selftest(void);
     78 __END_DECLS
     79 
     80 #endif	/* _SHA3_H */
     81