64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/* NIST Secure Hash Algorithm */
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/* heavily modified by Uwe Hollerbach <uh@alumni.caltech edu> */
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/* from Peter C. Gutmann's implementation as found in */
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/* Applied Cryptography by Bruce Schneier */
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/* This code is in the public domain */
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/* $Id$ */
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#ifndef SHA_H
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#define SHA_H
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#include <stdlib.h>
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#include <stdio.h>
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#include "discid/discid.h" /* for LIBDISCID_INTERNAL */
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/* Useful defines & typedefs */
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typedef unsigned char SHA_BYTE; /* 8-bit quantity */
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typedef unsigned long SHA_LONG; /* 32-or-more-bit quantity */
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#define SHA_BLOCKSIZE 64
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#define SHA_DIGESTSIZE 20
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typedef struct {
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SHA_LONG digest[5]; /* message digest */
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SHA_LONG count_lo, count_hi; /* 64-bit bit count */
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SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */
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size_t local; /* unprocessed amount in data */
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} SHA_INFO;
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LIBDISCID_INTERNAL void sha_init(SHA_INFO *);
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LIBDISCID_INTERNAL void sha_update(SHA_INFO *, SHA_BYTE *, size_t);
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LIBDISCID_INTERNAL void sha_final(unsigned char [20], SHA_INFO *);
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LIBDISCID_INTERNAL void sha_stream(unsigned char [20], SHA_INFO *, FILE *);
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LIBDISCID_INTERNAL void sha_print(unsigned char [20]);
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LIBDISCID_INTERNAL char *sha_version(void);
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#define SHA_VERSION 1
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#ifdef WORDS_BIGENDIAN
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# if SIZEOF_LONG == 4
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# define SHA_BYTE_ORDER 4321
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# elif SIZEOF_LONG == 8
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# define SHA_BYTE_ORDER 87654321
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# endif
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#else
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# if SIZEOF_LONG == 4
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# define SHA_BYTE_ORDER 1234
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# elif SIZEOF_LONG == 8
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# define SHA_BYTE_ORDER 12345678
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# endif
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#endif
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#else
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#define SHA_BYTE_ORDER 1234
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#endif
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#endif /* SHA_H */
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