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/*
*****************************************************************************
*
* File: sha1.h
*
* Purpose: Header for sha1.c
*
* sha - An implementation of the NIST SHA1 Message Digest
* algorithm.
*
* Copyright (C) 2001 Rafael R. Sevilla <sevillar@team.ph.inter.net>
*
* License (GNU Public License):
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*****************************************************************************
*/
#ifndef SHA1_H
#define SHA1_H 1

#include "common.h"

#ifdef WIN32
#define BYTEORDER 1234
#endif

/* Truncate to 32 bits -- should be a null op on 32-bit machines
*/
#ifndef TRUNC32
#define TRUNC32(x) ((x) & 0xffffffffL)
#endif

#define SHA1_BLOCKSIZE 64
#define SHA1_BLOCK_LEN SHA1_BLOCKSIZE
#define SHA1_DIGEST_LEN 20
#define SHA1_DIGEST_STR_LEN (SHA1_DIGEST_LEN * 2 + 1)
#define SHA1_B64_LEN 27

typedef struct {
    uint32_t digest[8];
    uint32_t count_lo, count_hi;
    uint8_t data[SHA1_BLOCKSIZE];
    int local;
} SHA1_INFO;

/* SHA1 prototypes.
*/
void sha1_init(SHA1_INFO *sha1_info);
void sha1_update(SHA1_INFO *sha1_info, uint8_t *buffer, int count);
void sha1_final(uint8_t digest[SHA1_DIGEST_LEN], SHA1_INFO *sha1_info);

#endif /* SHA1_H */
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