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#ifndef SHA_H
#define SHA_H
/* 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 */
/* Useful defines & typedefs */
typedef unsigned char BYTE; /* 8-bit quantity */
typedef unsigned long LONG; /* 32-or-more-bit quantity */
#define SHA_BLOCKSIZE 64
#define SHA_DIGESTSIZE 20
typedef struct {
LONG digest[5]; /* message digest */
LONG count_lo, count_hi; /* 64-bit bit count */
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 *, BYTE *, int);
void sha_final(unsigned char [20], SHA_INFO *);
#ifdef SHA_FOR_C
#include <stdlib.h>
#include <stdio.h>
void sha_stream(unsigned char [20], SHA_INFO *, FILE *);
void sha_print(unsigned char [20]);
char *sha_version(void);
#endif /* SHA_FOR_C */
#endif /* SHA_H */
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