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00001 /* 00002 * FILE: sha2.h 00003 * AUTHOR: Aaron D. Gifford - http://www.aarongifford.com/ 00004 * 00005 * Copyright (c) 2000-2001, Aaron D. Gifford 00006 * All rights reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 1. Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 2. Redistributions in binary form must reproduce the above copyright 00014 * notice, this list of conditions and the following disclaimer in the 00015 * documentation and/or other materials provided with the distribution. 00016 * 3. Neither the name of the copyright holder nor the names of contributors 00017 * may be used to endorse or promote products derived from this software 00018 * without specific prior written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND 00021 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00022 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00023 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE 00024 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00025 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00026 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00027 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00028 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00029 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00030 * SUCH DAMAGE. 00031 * 00032 * $Id: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $ 00033 */ 00034 00035 #ifndef __SHA2_H__ 00036 #define __SHA2_H__ 00037 00038 /* 00039 * Import u_intXX_t size_t type definitions from system headers. You 00040 * may need to change this, or define these things yourself in this 00041 * file. 00042 */ 00043 #include <sys/types.h> 00044 00045 #ifdef SHA2_USE_INTTYPES_H 00046 00047 #include <inttypes.h> 00048 00049 #endif /* SHA2_USE_INTTYPES_H */ 00050 00051 00052 /*** SHA-256/384/512 Various Length Definitions ***********************/ 00053 #define SHA256_BLOCK_LENGTH 64 00054 #define SHA256_DIGEST_LENGTH 32 00055 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) 00056 #define SHA384_BLOCK_LENGTH 128 00057 #define SHA384_DIGEST_LENGTH 48 00058 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) 00059 #define SHA512_BLOCK_LENGTH 128 00060 #define SHA512_DIGEST_LENGTH 64 00061 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) 00062 00063 00064 /*** SHA-256/384/512 Context Structures *******************************/ 00065 /* NOTE: If your architecture does not define either u_intXX_t types or 00066 * uintXX_t (from inttypes.h), you may need to define things by hand 00067 * for your system: 00068 */ 00069 #if 0 00070 typedef unsigned char u_int8_t; /* 1-byte (8-bits) */ 00071 typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */ 00072 typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */ 00073 #endif 00074 /* 00075 * Most BSD systems already define u_intXX_t types, as does Linux. 00076 * Some systems, however, like Compaq's Tru64 Unix instead can use 00077 * uintXX_t types defined by very recent ANSI C standards and included 00078 * in the file: 00079 * 00080 * #include <inttypes.h> 00081 * 00082 * If you choose to use <inttypes.h> then please define: 00083 * 00084 * #define SHA2_USE_INTTYPES_H 00085 * 00086 * Or on the command line during compile: 00087 * 00088 * cc -DSHA2_USE_INTTYPES_H ... 00089 */ 00090 #ifdef SHA2_USE_INTTYPES_H 00091 00092 typedef struct _SHA256_CTX { 00093 uint32_t state[8]; 00094 uint64_t bitcount; 00095 uint8_t buffer[SHA256_BLOCK_LENGTH]; 00096 } SHA256_CTX; 00097 typedef struct _SHA512_CTX { 00098 uint64_t state[8]; 00099 uint64_t bitcount[2]; 00100 uint8_t buffer[SHA512_BLOCK_LENGTH]; 00101 } SHA512_CTX; 00102 00103 #else /* SHA2_USE_INTTYPES_H */ 00104 00105 typedef struct _SHA256_CTX { 00106 u_int32_t state[8]; 00107 u_int64_t bitcount; 00108 u_int8_t buffer[SHA256_BLOCK_LENGTH]; 00109 } SHA256_CTX; 00110 typedef struct _SHA512_CTX { 00111 u_int64_t state[8]; 00112 u_int64_t bitcount[2]; 00113 u_int8_t buffer[SHA512_BLOCK_LENGTH]; 00114 } SHA512_CTX; 00115 00116 #endif /* SHA2_USE_INTTYPES_H */ 00117 00118 typedef SHA512_CTX SHA384_CTX; 00119 00120 00121 /*** SHA-256/384/512 Function Prototypes ******************************/ 00122 #ifndef NOPROTO 00123 #ifdef SHA2_USE_INTTYPES_H 00124 00125 void SHA256_Init(SHA256_CTX *); 00126 void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t); 00127 void SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); 00128 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); 00129 char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); 00130 00131 void SHA384_Init(SHA384_CTX*); 00132 void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t); 00133 void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 00134 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); 00135 char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); 00136 00137 void SHA512_Init(SHA512_CTX*); 00138 void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t); 00139 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 00140 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); 00141 char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); 00142 00143 #else /* SHA2_USE_INTTYPES_H */ 00144 00145 void SHA256_Init(SHA256_CTX *); 00146 void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t); 00147 void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); 00148 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); 00149 char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); 00150 00151 void SHA384_Init(SHA384_CTX*); 00152 void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t); 00153 void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 00154 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); 00155 char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); 00156 00157 void SHA512_Init(SHA512_CTX*); 00158 void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t); 00159 void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 00160 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); 00161 char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); 00162 00163 #endif /* SHA2_USE_INTTYPES_H */ 00164 00165 #else /* NOPROTO */ 00166 00167 void SHA256_Init(); 00168 void SHA256_Update(); 00169 void SHA256_Final(); 00170 char* SHA256_End(); 00171 char* SHA256_Data(); 00172 00173 void SHA384_Init(); 00174 void SHA384_Update(); 00175 void SHA384_Final(); 00176 char* SHA384_End(); 00177 char* SHA384_Data(); 00178 00179 void SHA512_Init(); 00180 void SHA512_Update(); 00181 void SHA512_Final(); 00182 char* SHA512_End(); 00183 char* SHA512_Data(); 00184 00185 #endif /* NOPROTO */ 00186 00187 #endif /* __SHA2_H__ */ 00188