sha256.h 1 KB
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/*
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 *	BIRD Library -- SHA-256 and SHA-224 Hash Functions
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 *
 *	(c) 2015 CZ.NIC z.s.p.o.
 *
 *	Based on the code from libgcrypt-1.6.0, which is
 *	(c) 2003, 2006, 2008, 2009 Free Software Foundation, Inc.
 *
 *	Can be freely distributed and used under the terms of the GNU GPL.
 */

#ifndef _BIRD_SHA256_H_
#define _BIRD_SHA256_H_

#include "nest/bird.h"

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#define SHA224_SIZE 		28
#define SHA224_HEX_SIZE		57
#define SHA224_BLOCK_SIZE 	64

#define SHA256_SIZE 		32
#define SHA256_HEX_SIZE		65
#define SHA256_BLOCK_SIZE 	64

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struct hash_context;

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struct sha256_context {
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  u32  h0, h1, h2, h3, h4, h5, h6, h7;
  byte buf[SHA256_BLOCK_SIZE];
  uint nblocks;
  uint count;
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};
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#define sha224_context sha256_context

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void sha256_init(struct hash_context *ctx);
void sha224_init(struct hash_context *ctx);
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void sha256_update(struct hash_context *ctx, const byte *buf, uint len);
#define sha224_update sha256_update
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byte *sha256_final(struct hash_context *ctx);
#define sha224_final sha256_final
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#endif /* _BIRD_SHA256_H_ */