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de2a27e255
Add generic interface for generating and verifying MACs (message authentication codes). Replace multiple HMAC implementation with a generic one.
50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
/*
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* BIRD Library -- SHA-256 and SHA-224 Hash Functions
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*
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* (c) 2015 CZ.NIC z.s.p.o.
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*
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* Based on the code from libgcrypt-1.6.0, which is
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* (c) 2003, 2006, 2008, 2009 Free Software Foundation, Inc.
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#ifndef _BIRD_SHA256_H_
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#define _BIRD_SHA256_H_
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#include "nest/bird.h"
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#define SHA224_SIZE 28
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#define SHA224_HEX_SIZE 57
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#define SHA224_BLOCK_SIZE 64
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#define SHA256_SIZE 32
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#define SHA256_HEX_SIZE 65
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#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;
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byte buf[SHA256_BLOCK_SIZE];
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uint nblocks;
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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);
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void sha224_init(struct hash_context *ctx);
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void sha256_update(struct hash_context *ctx, const byte *buf, uint len);
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#define sha224_update sha256_update
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byte *sha256_final(struct hash_context *ctx);
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#define sha224_final sha256_final
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#endif /* _BIRD_SHA256_H_ */
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