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