sys/crypto/sha2/sha2.h

   1 /*      $FreeBSD: src/sys/crypto/sha2/sha2.h,v 1.1.2.1 2001/07/03 11:01:36 ume Exp $    */
   2 /*      $DragonFly: src/sys/crypto/sha2/sha2.h,v 1.3 2003/08/27 10:59:04 rob Exp $      */
   3 /*      $KAME: sha2.h,v 1.3 2001/03/12 08:27:48 itojun Exp $    */
   4
   5 /*
   6  * sha2.h
   7  *
   8  * Version 1.0.0beta1
   9  *
  10  * Written by Aaron D. Gifford <me@aarongifford.com>
  11  *
  12  * Copyright 2000 Aaron D. Gifford.  All rights reserved.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions
  16  * are met:
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in the
  21  *    documentation and/or other materials provided with the distribution.
  22  * 3. Neither the name of the copyright holder nor the names of contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  *
  38  */
  39
  40 #ifndef __SHA2_H__
  41 #define __SHA2_H__
  42
  43 #ifdef __cplusplus
  44 extern "C" {
  45 #endif
  46
  47
  48 /*** SHA-256/384/512 Various Length Definitions ***********************/
  49 #define SHA256_BLOCK_LENGTH             64
  50 #define SHA256_DIGEST_LENGTH            32
  51 #define SHA256_DIGEST_STRING_LENGTH     (SHA256_DIGEST_LENGTH * 2 + 1)
  52 #define SHA384_BLOCK_LENGTH             128
  53 #define SHA384_DIGEST_LENGTH            48
  54 #define SHA384_DIGEST_STRING_LENGTH     (SHA384_DIGEST_LENGTH * 2 + 1)
  55 #define SHA512_BLOCK_LENGTH             128
  56 #define SHA512_DIGEST_LENGTH            64
  57 #define SHA512_DIGEST_STRING_LENGTH     (SHA512_DIGEST_LENGTH * 2 + 1)
  58
  59
  60 /*** SHA-256/384/512 Context Structures *******************************/
  61 /* NOTE: If your architecture does not define either u_intXX_t types or
  62  * uintXX_t (from inttypes.h), you may need to define things by hand
  63  * for your system:
  64  */
  65 #if 0
  66 typedef unsigned char u_int8_t;         /* 1-byte  (8-bits)  */
  67 typedef unsigned int u_int32_t;         /* 4-bytes (32-bits) */
  68 typedef unsigned long long u_int64_t;   /* 8-bytes (64-bits) */
  69 #endif
  70 /*
  71  * Most BSD systems already define u_intXX_t types, as does Linux.
  72  * Some systems, however, like Compaq's Tru64 Unix instead can use
  73  * uintXX_t types defined by very recent ANSI C standards and included
  74  * in the file:
  75  *
  76  *   #include <inttypes.h>
  77  *
  78  * If you choose to use <inttypes.h> then please define:
  79  *
  80  *   #define SHA2_USE_INTTYPES_H
  81  *
  82  * Or on the command line during compile:
  83  *
  84  *   cc -DSHA2_USE_INTTYPES_H ...
  85  */
  86 #if 0 /*def SHA2_USE_INTTYPES_H*/
  87
  88 typedef struct _SHA256_CTX {
  89         uint32_t        state[8];
  90         uint64_t        bitcount;
  91         uint8_t buffer[SHA256_BLOCK_LENGTH];
  92 } SHA256_CTX;
  93 typedef struct _SHA512_CTX {
  94         uint64_t        state[8];
  95         uint64_t        bitcount[2];
  96         uint8_t buffer[SHA512_BLOCK_LENGTH];
  97 } SHA512_CTX;
  98
  99 #else /* SHA2_USE_INTTYPES_H */
 100
 101 typedef struct _SHA256_CTX {
 102         u_int32_t       state[8];
 103         u_int64_t       bitcount;
 104         u_int8_t        buffer[SHA256_BLOCK_LENGTH];
 105 } SHA256_CTX;
 106 typedef struct _SHA512_CTX {
 107         u_int64_t       state[8];
 108         u_int64_t       bitcount[2];
 109         u_int8_t        buffer[SHA512_BLOCK_LENGTH];
 110 } SHA512_CTX;
 111
 112 #endif /* SHA2_USE_INTTYPES_H */
 113
 114 typedef SHA512_CTX SHA384_CTX;
 115
 116
 117 /*** SHA-256/384/512 Function Prototypes ******************************/
 118
 119 void SHA256_Init (SHA256_CTX *);
 120 void SHA256_Update (SHA256_CTX*, const u_int8_t*, size_t);
 121 void SHA256_Final (u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
 122 char* SHA256_End (SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
 123 char* SHA256_Data (const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
 124
 125 void SHA384_Init (SHA384_CTX*);
 126 void SHA384_Update (SHA384_CTX*, const u_int8_t*, size_t);
 127 void SHA384_Final (u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
 128 char* SHA384_End (SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
 129 char* SHA384_Data (const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
 130
 131 void SHA512_Init (SHA512_CTX*);
 132 void SHA512_Update (SHA512_CTX*, const u_int8_t*, size_t);
 133 void SHA512_Final (u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
 134 char* SHA512_End (SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
 135 char* SHA512_Data (const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
 136
 137 #ifdef  __cplusplus
 138 }
 139 #endif /* __cplusplus */
 140
 141 #endif /* __SHA2_H__ */
 142