1 /* $FreeBSD: src/sys/crypto/sha2/sha2.h,v 1.2 2002/03/20 05:13:51 alfred 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(SHA256_CTX *); 119 void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t); 120 void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); 121 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); 122 char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); 123 124 void SHA384_Init(SHA384_CTX*); 125 void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t); 126 void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 127 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); 128 char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); 129 130 void SHA512_Init(SHA512_CTX*); 131 void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t); 132 void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 133 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); 134 char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); 135 136 #ifdef __cplusplus 137 } 138 #endif /* __cplusplus */ 139 140 #endif /* __SHA2_H__ */ 141 142