contrib/bind-9.5.2/lib/isc/include/isc/sha2.h

   1 /*
   2  * Copyright (C) 2005-2007  Internet Systems Consortium, Inc. ("ISC")
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
   9  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  10  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  11  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  12  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  13  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  14  * PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 /* $Id: sha2.h,v 1.9 2007/06/19 23:47:18 tbox Exp $ */
  18
  19 /*      $FreeBSD: src/sys/crypto/sha2/sha2.h,v 1.1.2.1 2001/07/03 11:01:36 ume Exp $    */
  20 /*      $KAME: sha2.h,v 1.3 2001/03/12 08:27:48 itojun Exp $    */
  21
  22 /*
  23  * sha2.h
  24  *
  25  * Version 1.0.0beta1
  26  *
  27  * Written by Aaron D. Gifford <me@aarongifford.com>
  28  *
  29  * Copyright 2000 Aaron D. Gifford.  All rights reserved.
  30  *
  31  * Redistribution and use in source and binary forms, with or without
  32  * modification, are permitted provided that the following conditions
  33  * are met:
  34  * 1. Redistributions of source code must retain the above copyright
  35  *    notice, this list of conditions and the following disclaimer.
  36  * 2. Redistributions in binary form must reproduce the above copyright
  37  *    notice, this list of conditions and the following disclaimer in the
  38  *    documentation and/or other materials provided with the distribution.
  39  * 3. Neither the name of the copyright holder nor the names of contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  */
  56
  57 #ifndef ISC_SHA2_H
  58 #define ISC_SHA2_H
  59
  60 #include <isc/lang.h>
  61 #include <isc/types.h>
  62
  63 /*** SHA-224/256/384/512 Various Length Definitions ***********************/
  64
  65 #define ISC_SHA224_BLOCK_LENGTH         64U
  66 #define ISC_SHA224_DIGESTLENGTH 28U
  67 #define ISC_SHA224_DIGESTSTRINGLENGTH   (ISC_SHA224_DIGESTLENGTH * 2 + 1)
  68 #define ISC_SHA256_BLOCK_LENGTH         64U
  69 #define ISC_SHA256_DIGESTLENGTH 32U
  70 #define ISC_SHA256_DIGESTSTRINGLENGTH   (ISC_SHA256_DIGESTLENGTH * 2 + 1)
  71 #define ISC_SHA384_BLOCK_LENGTH         128
  72 #define ISC_SHA384_DIGESTLENGTH 48U
  73 #define ISC_SHA384_DIGESTSTRINGLENGTH   (ISC_SHA384_DIGESTLENGTH * 2 + 1)
  74 #define ISC_SHA512_BLOCK_LENGTH         128U
  75 #define ISC_SHA512_DIGESTLENGTH 64U
  76 #define ISC_SHA512_DIGESTSTRINGLENGTH   (ISC_SHA512_DIGESTLENGTH * 2 + 1)
  77
  78
  79 ISC_LANG_BEGINDECLS
  80
  81 /*** SHA-256/384/512 Context Structures *******************************/
  82
  83 /*
  84  * Keep buffer immediately after bitcount to preserve alignment.
  85  */
  86 typedef struct {
  87         isc_uint32_t    state[8];
  88         isc_uint64_t    bitcount;
  89         isc_uint8_t     buffer[ISC_SHA256_BLOCK_LENGTH];
  90 } isc_sha256_t;
  91
  92 /*
  93  * Keep buffer immediately after bitcount to preserve alignment.
  94  */
  95 typedef struct {
  96         isc_uint64_t    state[8];
  97         isc_uint64_t    bitcount[2];
  98         isc_uint8_t     buffer[ISC_SHA512_BLOCK_LENGTH];
  99 } isc_sha512_t;
 100
 101 typedef isc_sha256_t isc_sha224_t;
 102 typedef isc_sha512_t isc_sha384_t;
 103
 104 /*** SHA-224/256/384/512 Function Prototypes ******************************/
 105
 106 void isc_sha224_init (isc_sha224_t *);
 107 void isc_sha224_update (isc_sha224_t *, const isc_uint8_t *, size_t);
 108 void isc_sha224_final (isc_uint8_t[ISC_SHA224_DIGESTLENGTH], isc_sha224_t *);
 109 char *isc_sha224_end (isc_sha224_t *, char[ISC_SHA224_DIGESTSTRINGLENGTH]);
 110 char *isc_sha224_data (const isc_uint8_t *, size_t, char[ISC_SHA224_DIGESTSTRINGLENGTH]);
 111
 112 void isc_sha256_init (isc_sha256_t *);
 113 void isc_sha256_update (isc_sha256_t *, const isc_uint8_t *, size_t);
 114 void isc_sha256_final (isc_uint8_t[ISC_SHA256_DIGESTLENGTH], isc_sha256_t *);
 115 char *isc_sha256_end (isc_sha256_t *, char[ISC_SHA256_DIGESTSTRINGLENGTH]);
 116 char *isc_sha256_data (const isc_uint8_t *, size_t, char[ISC_SHA256_DIGESTSTRINGLENGTH]);
 117
 118 void isc_sha384_init (isc_sha384_t *);
 119 void isc_sha384_update (isc_sha384_t *, const isc_uint8_t *, size_t);
 120 void isc_sha384_final (isc_uint8_t[ISC_SHA384_DIGESTLENGTH], isc_sha384_t *);
 121 char *isc_sha384_end (isc_sha384_t *, char[ISC_SHA384_DIGESTSTRINGLENGTH]);
 122 char *isc_sha384_data (const isc_uint8_t *, size_t, char[ISC_SHA384_DIGESTSTRINGLENGTH]);
 123
 124 void isc_sha512_init (isc_sha512_t *);
 125 void isc_sha512_update (isc_sha512_t *, const isc_uint8_t *, size_t);
 126 void isc_sha512_final (isc_uint8_t[ISC_SHA512_DIGESTLENGTH], isc_sha512_t *);
 127 char *isc_sha512_end (isc_sha512_t *, char[ISC_SHA512_DIGESTSTRINGLENGTH]);
 128 char *isc_sha512_data (const isc_uint8_t *, size_t, char[ISC_SHA512_DIGESTSTRINGLENGTH]);
 129
 130 ISC_LANG_ENDDECLS
 131
 132 #endif /* ISC_SHA2_H */