/*-

 * Copyright (c) 2001-2003 Allan Saddi <allan@saddi.com>

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY ALLAN SADDI AND HIS CONTRIBUTORS ``AS IS''

 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL ALLAN SADDI OR HIS CONTRIBUTORS BE

 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * $Id: sha1.h 347 2003-02-23 22:11:49Z asaddi $

 */

#ifndef _SHA1_H

#define _SHA1_H

# include <inttypes.h>

#define SHA1_HASH_SIZE 20

/* Hash size in 32-bit words */

#define SHA1_HASH_WORDS 5

struct _SHA1Context {

  uint64_t totalLength;

  uint32_t hash[SHA1_HASH_WORDS];

  uint32_t bufferLength;

  union {

    uint32_t words[16];

    uint8_t bytes[64];

  } buffer;

#ifdef RUNTIME_ENDIAN

  int littleEndian;

#endif /* RUNTIME_ENDIAN */

};

typedef struct _SHA1Context SHA1Context;

#ifdef __cplusplus

extern "C" {

#endif

void SHA1Init (SHA1Context *sc);

void SHA1Update (SHA1Context *sc, const void *data, uint32_t len);

void SHA1Final (SHA1Context *sc, uint8_t hash[SHA1_HASH_SIZE]);

#ifdef __cplusplus

}

#endif

#endif /* _SHA1_H */