mirror of git://git.gnupg.org/gnupg.git
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* sha1.h - SHA1 hash function
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* Copyright (c) 1997 by Werner Koch (dd9jn)
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*
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* This file is part of G10.
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*
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* G10 is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* G10 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef G10_SHA1_H
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#define G10_SHA1_H
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#include "types.h"
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typedef struct {
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u32 h0,h1,h2,h3,h4;
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u32 nblocks;
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byte buffer[64];
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int bufcount;
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} *SHA1HANDLE;
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/****************
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* Process a single character, this character will be buffered to
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* increase performance.
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*/
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#define sha1_putchar(h,c) \
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do { \
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if( (h)->bufcount == 64 ) \
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sha1_write( (h), NULL, 0 ); \
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(h)->buffer[(h)->bufcount++] = (c) & 0xff; \
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} while(0)
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SHA1HANDLE sha1_open( int secure );
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SHA1HANDLE sha1_copy( SHA1HANDLE a );
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void sha1_close( SHA1HANDLE hd );
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void sha1_write( SHA1HANDLE hd, byte *inbuf, size_t inlen );
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byte * sha1_final( SHA1HANDLE hd );
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#endif /*G10_SHA1_H*/
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