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/* NIST Secure Hash Algorithm */
/* heavily modified by Uwe Hollerbach <uh@alumni.caltech edu> */
/* from Peter C. Gutmann's implementation as found in */
/* Applied Cryptography by Bruce Schneier */
/* This code is in the public domain */
/* $Id: sha1.h,v 1.1 2004/05/05 09:11:39 hadess Exp $ */
#ifndef SHA_H
#define SHA_H
#include <stdlib.h>
#include <stdio.h>
/* Useful defines & typedefs */
typedef unsigned char SHA_BYTE; /* 8-bit quantity */
typedef unsigned long SHA_LONG; /* 32-or-more-bit quantity */
#define SHA_BLOCKSIZE 64
#define SHA_DIGESTSIZE 20
typedef struct {
SHA_LONG digest[5]; /* message digest */
SHA_LONG count_lo, count_hi; /* 64-bit bit count */
SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */
int local; /* unprocessed amount in data */
} SHA_INFO;
void sha_init(SHA_INFO *);
void sha_update(SHA_INFO *, SHA_BYTE *, int);
void sha_final(unsigned char [20], SHA_INFO *);
void sha_stream(unsigned char [20], SHA_INFO *, FILE *);
void sha_print(unsigned char [20]);
char *sha_version(void);
#define SHA_VERSION 1
#ifdef HAVE_CONFIG_H
#include "config.h"
#ifdef WORDS_BIGENDIAN
# if SIZEOF_LONG == 4
# define SHA_BYTE_ORDER 4321
# elif SIZEOF_LONG == 8
# define SHA_BYTE_ORDER 87654321
# endif
#else
# if SIZEOF_LONG == 4
# define SHA_BYTE_ORDER 1234
# elif SIZEOF_LONG == 8
# define SHA_BYTE_ORDER 12345678
# endif
#endif
#else
#define SHA_BYTE_ORDER 1234
#endif
#endif /* SHA_H */
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