1 /* $FreeBSD: src/sys/crypto/sha2/sha2.h,v 1.1.2.1 2001/07/03 11:01:36 ume Exp $ */ 2 /* $DragonFly: src/sys/crypto/sha2/sha2.h,v 1.3 2003/08/27 10:59:04 rob Exp $ */ 3 /* $KAME: sha2.h,v 1.3 2001/03/12 08:27:48 itojun Exp $ */ 4 5 /* 6 * sha2.h 7 * 8 * Version 1.0.0beta1 9 * 10 * Written by Aaron D. Gifford <me@aarongifford.com> 11 * 12 * Copyright 2000 Aaron D. Gifford. All rights reserved. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. Neither the name of the copyright holder nor the names of contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 */ 39 40 #ifndef __SHA2_H__ 41 #define __SHA2_H__ 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 48 /*** SHA-256/384/512 Various Length Definitions ***********************/ 49 #define SHA256_BLOCK_LENGTH 64 50 #define SHA256_DIGEST_LENGTH 32 51 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) 52 #define SHA384_BLOCK_LENGTH 128 53 #define SHA384_DIGEST_LENGTH 48 54 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) 55 #define SHA512_BLOCK_LENGTH 128 56 #define SHA512_DIGEST_LENGTH 64 57 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) 58 59 60 /*** SHA-256/384/512 Context Structures *******************************/ 61 /* NOTE: If your architecture does not define either u_intXX_t types or 62 * uintXX_t (from inttypes.h), you may need to define things by hand 63 * for your system: 64 */ 65 #if 0 66 typedef unsigned char u_int8_t; /* 1-byte (8-bits) */ 67 typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */ 68 typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */ 69 #endif 70 /* 71 * Most BSD systems already define u_intXX_t types, as does Linux. 72 * Some systems, however, like Compaq's Tru64 Unix instead can use 73 * uintXX_t types defined by very recent ANSI C standards and included 74 * in the file: 75 * 76 * #include <inttypes.h> 77 * 78 * If you choose to use <inttypes.h> then please define: 79 * 80 * #define SHA2_USE_INTTYPES_H 81 * 82 * Or on the command line during compile: 83 * 84 * cc -DSHA2_USE_INTTYPES_H ... 85 */ 86 #if 0 /*def SHA2_USE_INTTYPES_H*/ 87 88 typedef struct _SHA256_CTX { 89 uint32_t state[8]; 90 uint64_t bitcount; 91 uint8_t buffer[SHA256_BLOCK_LENGTH]; 92 } SHA256_CTX; 93 typedef struct _SHA512_CTX { 94 uint64_t state[8]; 95 uint64_t bitcount[2]; 96 uint8_t buffer[SHA512_BLOCK_LENGTH]; 97 } SHA512_CTX; 98 99 #else /* SHA2_USE_INTTYPES_H */ 100 101 typedef struct _SHA256_CTX { 102 u_int32_t state[8]; 103 u_int64_t bitcount; 104 u_int8_t buffer[SHA256_BLOCK_LENGTH]; 105 } SHA256_CTX; 106 typedef struct _SHA512_CTX { 107 u_int64_t state[8]; 108 u_int64_t bitcount[2]; 109 u_int8_t buffer[SHA512_BLOCK_LENGTH]; 110 } SHA512_CTX; 111 112 #endif /* SHA2_USE_INTTYPES_H */ 113 114 typedef SHA512_CTX SHA384_CTX; 115 116 117 /*** SHA-256/384/512 Function Prototypes ******************************/ 118 119 void SHA256_Init (SHA256_CTX *); 120 void SHA256_Update (SHA256_CTX*, const u_int8_t*, size_t); 121 void SHA256_Final (u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); 122 char* SHA256_End (SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); 123 char* SHA256_Data (const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); 124 125 void SHA384_Init (SHA384_CTX*); 126 void SHA384_Update (SHA384_CTX*, const u_int8_t*, size_t); 127 void SHA384_Final (u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 128 char* SHA384_End (SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); 129 char* SHA384_Data (const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); 130 131 void SHA512_Init (SHA512_CTX*); 132 void SHA512_Update (SHA512_CTX*, const u_int8_t*, size_t); 133 void SHA512_Final (u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 134 char* SHA512_End (SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); 135 char* SHA512_Data (const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); 136 137 #ifdef __cplusplus 138 } 139 #endif /* __cplusplus */ 140 141 #endif /* __SHA2_H__ */ 142 143