1 /* 2 * FILE: sha2.h 3 * AUTHOR: Aaron D. Gifford - http://www.aarongifford.com/ 4 * 5 * Copyright (c) 2000-2001, Aaron D. Gifford 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the copyright holder nor the names of contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $ 33 */ 34 35 #ifndef __SHA2_H__ 36 #define __SHA2_H__ 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 43 /* 44 * Import u_intXX_t size_t type definitions from system headers. You 45 * may need to change this, or define these things yourself in this 46 * file. 47 */ 48 #include <sys/types.h> 49 50 #ifdef SHA2_USE_INTTYPES_H 51 52 #include <inttypes.h> 53 54 #endif /* SHA2_USE_INTTYPES_H */ 55 56 57 /*** SHA-256/384/512 Various Length Definitions ***********************/ 58 #define SHA256_BLOCK_LENGTH 64 59 #define SHA256_DIGEST_LENGTH 32 60 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) 61 #define SHA384_BLOCK_LENGTH 128 62 #define SHA384_DIGEST_LENGTH 48 63 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) 64 #define SHA512_BLOCK_LENGTH 128 65 #define SHA512_DIGEST_LENGTH 64 66 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) 67 68 69 /*** SHA-256/384/512 Context Structures *******************************/ 70 /* NOTE: If your architecture does not define either u_intXX_t types or 71 * uintXX_t (from inttypes.h), you may need to define things by hand 72 * for your system: 73 */ 74 #if 0 75 typedef unsigned char u_int8_t; /* 1-byte (8-bits) */ 76 typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */ 77 typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */ 78 #endif 79 /* 80 * Most BSD systems already define u_intXX_t types, as does Linux. 81 * Some systems, however, like Compaq's Tru64 Unix instead can use 82 * uintXX_t types defined by very recent ANSI C standards and included 83 * in the file: 84 * 85 * #include <inttypes.h> 86 * 87 * If you choose to use <inttypes.h> then please define: 88 * 89 * #define SHA2_USE_INTTYPES_H 90 * 91 * Or on the command line during compile: 92 * 93 * cc -DSHA2_USE_INTTYPES_H ... 94 */ 95 #ifdef SHA2_USE_INTTYPES_H 96 97 typedef struct _SHA256_CTX { 98 uint32_t state[8]; 99 uint64_t bitcount; 100 uint8_t buffer[SHA256_BLOCK_LENGTH]; 101 } SHA256_CTX; 102 typedef struct _SHA512_CTX { 103 uint64_t state[8]; 104 uint64_t bitcount[2]; 105 uint8_t buffer[SHA512_BLOCK_LENGTH]; 106 } SHA512_CTX; 107 108 #else /* SHA2_USE_INTTYPES_H */ 109 110 typedef struct _SHA256_CTX { 111 u_int32_t state[8]; 112 u_int64_t bitcount; 113 u_int8_t buffer[SHA256_BLOCK_LENGTH]; 114 } SHA256_CTX; 115 typedef struct _SHA512_CTX { 116 u_int64_t state[8]; 117 u_int64_t bitcount[2]; 118 u_int8_t buffer[SHA512_BLOCK_LENGTH]; 119 } SHA512_CTX; 120 121 #endif /* SHA2_USE_INTTYPES_H */ 122 123 typedef SHA512_CTX SHA384_CTX; 124 125 126 /*** SHA-256/384/512 Function Prototypes ******************************/ 127 #ifndef NOPROTO 128 #ifdef SHA2_USE_INTTYPES_H 129 130 #ifdef WITH_SHA256 131 void SHA256_Init(SHA256_CTX *); 132 void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t); 133 void SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); 134 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); 135 char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); 136 #endif 137 138 #ifdef WITH_SHA384 139 void SHA384_Init(SHA384_CTX*); 140 void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t); 141 void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 142 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); 143 char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); 144 #endif 145 146 #ifdef WITH_SHA512 147 void SHA512_Init(SHA512_CTX*); 148 void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t); 149 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 150 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); 151 char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); 152 #endif 153 154 #else /* SHA2_USE_INTTYPES_H */ 155 156 #ifdef WITH_SHA256 157 void SHA256_Init(SHA256_CTX *); 158 void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t); 159 void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); 160 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); 161 char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); 162 #endif 163 164 #ifdef WITH_SHA384 165 void SHA384_Init(SHA384_CTX*); 166 void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t); 167 void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 168 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); 169 char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); 170 #endif 171 172 #ifdef WITH_SHA512 173 void SHA512_Init(SHA512_CTX*); 174 void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t); 175 void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 176 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); 177 char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); 178 #endif 179 180 #endif /* SHA2_USE_INTTYPES_H */ 181 182 #else /* NOPROTO */ 183 184 #ifdef WITH_SHA256 185 void SHA256_Init(); 186 void SHA256_Update(); 187 void SHA256_Final(); 188 char* SHA256_End(); 189 char* SHA256_Data(); 190 #endif 191 192 #ifdef WITH_SHA384 193 void SHA384_Init(); 194 void SHA384_Update(); 195 void SHA384_Final(); 196 char* SHA384_End(); 197 char* SHA384_Data(); 198 #endif 199 200 #ifdef WITH_SHA512 201 void SHA512_Init(); 202 void SHA512_Update(); 203 void SHA512_Final(); 204 char* SHA512_End(); 205 char* SHA512_Data(); 206 #endif 207 208 #endif /* NOPROTO */ 209 210 #ifdef __cplusplus 211 } 212 #endif /* __cplusplus */ 213 214 #endif /* __SHA2_H__ */ 215 216
