1 /*-

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

     3  * All rights reserved.

     4  *

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

     6  * modification, are permitted provided that the following conditions

     7  * are met:

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

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

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

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

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

    13  *

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

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

    16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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

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

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

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

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

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

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

    24  * POSSIBILITY OF SUCH DAMAGE.

    25  *

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

    27  */

    28 

    29 #ifndef _SHA1_H

    30 #define _SHA1_H

    31 

    32 # include <inttypes.h>

    33 

    34 #define SHA1_HASH_SIZE 20

    35 

    36 /* Hash size in 32-bit words */

    37 #define SHA1_HASH_WORDS 5

    38 

    39 struct _SHA1Context {

    40   uint64_t totalLength;

    41   uint32_t hash[SHA1_HASH_WORDS];

    42   uint32_t bufferLength;

    43   union {

    44     uint32_t words[16];

    45     uint8_t bytes[64];

    46   } buffer;

    47 #ifdef RUNTIME_ENDIAN

    48   int littleEndian;

    49 #endif /* RUNTIME_ENDIAN */

    50 };

    51 

    52 typedef struct _SHA1Context SHA1Context;

    53 

    54 #ifdef __cplusplus

    55 extern "C" {

    56 #endif

    57 

    58 void SHA1Init (SHA1Context *sc);

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

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

    61 

    62 #ifdef __cplusplus

    63 }

    64 #endif

    65 

    66 #endif /* _SHA1_H */