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 #include "std.h" 43 #include "stdint_.h" 44 45 #define SHA2_USE_INTTYPES_H 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 /*** SHA-256/384/512 Context Structures *******************************/ 59 /* NOTE: If your architecture does not define either u_intXX_t types or 60 * uintXX_t (from inttypes.h), you may need to define things by hand 61 * for your system: 62 */ 63 #if 0 64 typedef unsigned char u_int8_t; /* 1-byte (8-bits) */ 65 typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */ 66 typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */ 67 #endif 68 /* 69 * Most BSD systems already define u_intXX_t types, as does Linux. 70 * Some systems, however, like Compaq's Tru64 Unix instead can use 71 * uintXX_t types defined by very recent ANSI C standards and included 72 * in the file: 73 * 74 * #include <inttypes.h> 75 * 76 * If you choose to use <inttypes.h> then please define: 77 * 78 * #define SHA2_USE_INTTYPES_H 79 * 80 * Or on the command line during compile: 81 * 82 * cc -DSHA2_USE_INTTYPES_H ... 83 */ 84 #ifdef SHA2_USE_INTTYPES_H 85 86 typedef struct _SHA256_CTX { 87 uint32_t state[8]; 88 uint64_t bitcount; 89 uint8_t buffer[SHA256_BLOCK_LENGTH]; 90 } SHA256_CTX; 91 typedef struct _SHA512_CTX { 92 uint64_t state[8]; 93 uint64_t bitcount[2]; 94 uint8_t buffer[SHA512_BLOCK_LENGTH]; 95 } SHA512_CTX; 96 97 #else /* SHA2_USE_INTTYPES_H */ 98 99 typedef struct _SHA256_CTX { 100 u_int32_t state[8]; 101 u_int64_t bitcount; 102 u_int8_t buffer[SHA256_BLOCK_LENGTH]; 103 } SHA256_CTX; 104 typedef struct _SHA512_CTX { 105 u_int64_t state[8]; 106 u_int64_t bitcount[2]; 107 u_int8_t buffer[SHA512_BLOCK_LENGTH]; 108 } SHA512_CTX; 109 110 #endif /* SHA2_USE_INTTYPES_H */ 111 112 typedef SHA512_CTX SHA384_CTX; 113 114 /*** SHA-256/384/512 Function Prototypes ******************************/ 115 #ifndef NOPROTO 116 #ifdef SHA2_USE_INTTYPES_H 117 118 void pSHA256_Init(SHA256_CTX *); 119 void pSHA256_Update(SHA256_CTX*, const uint8_t*, size_t); 120 void pSHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); 121 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); 122 char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); 123 124 void SHA384_Init(SHA384_CTX*); 125 void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t); 126 void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 127 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); 128 char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); 129 130 void SHA512_Init(SHA512_CTX*); 131 void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t); 132 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 133 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); 134 char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); 135 136 #else /* SHA2_USE_INTTYPES_H */ 137 138 void pSHA256_Init(SHA256_CTX *); 139 void pSHA256_Update(SHA256_CTX*, const u_int8_t*, size_t); 140 void pSHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); 141 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); 142 char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); 143 144 void SHA384_Init(SHA384_CTX*); 145 void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t); 146 void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 147 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); 148 char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); 149 150 void SHA512_Init(SHA512_CTX*); 151 void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t); 152 void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 153 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); 154 char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); 155 156 #endif /* SHA2_USE_INTTYPES_H */ 157 158 #else /* NOPROTO */ 159 160 void pSHA256_Init(); 161 void pSHA256_Update(); 162 void pSHA256_Final(); 163 char* SHA256_End(); 164 char* SHA256_Data(); 165 166 void SHA384_Init(); 167 void SHA384_Update(); 168 void SHA384_Final(); 169 char* SHA384_End(); 170 char* SHA384_Data(); 171 172 void SHA512_Init(); 173 void SHA512_Update(); 174 void SHA512_Final(); 175 char* SHA512_End(); 176 char* SHA512_Data(); 177 178 #endif /* NOPROTO */ 179 180 #ifdef __cplusplus 181 } 182 #endif /* __cplusplus */ 183 184 #endif /* __SHA2_H__ */ 185