1/* $KAME: sha2.h,v 1.2 2001/08/08 22:09:27 sakane Exp $ */ 2 3/* 4 * sha2.h 5 * 6 * Version 1.0.0beta1 7 * 8 * Written by Aaron D. Gifford <me@aarongifford.com> 9 * 10 * Copyright 2000 Aaron D. Gifford. All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the copyright holder nor the names of contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 */ 37 38#ifndef __SHA2_H__ 39#define __SHA2_H__ 40 41#ifdef __cplusplus 42extern "C" { 43#endif 44 45 46/*** SHA-256/384/512 Various Length Definitions ***********************/ 47#define SHA256_BLOCK_LENGTH 64 48#define SHA256_DIGEST_LENGTH 32 49#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) 50#define SHA384_BLOCK_LENGTH 128 51#define SHA384_DIGEST_LENGTH 48 52#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) 53#define SHA512_BLOCK_LENGTH 128 54#define SHA512_DIGEST_LENGTH 64 55#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) 56 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/* 64 * Most BSD systems already define u_intXX_t types, as does Linux. 65 * Some systems, however, like Compaq's Tru64 Unix instead can use 66 * uintXX_t types defined by very recent ANSI C standards and included 67 * in the file: 68 * 69 * #include <inttypes.h> 70 * 71 * If you choose to use <inttypes.h> then please define: 72 * 73 * #define SHA2_USE_INTTYPES_H 74 * 75 * Or on the command line during compile: 76 * 77 * cc -DSHA2_USE_INTTYPES_H ... 78 */ 79 80typedef struct _SHA256_CTX { 81 u_int32_t state[8]; 82 u_int64_t bitcount; 83 u_int8_t buffer[SHA256_BLOCK_LENGTH]; 84} SHA256_CTX; 85typedef struct _SHA512_CTX { 86 u_int64_t state[8]; 87 u_int64_t bitcount[2]; 88 u_int8_t buffer[SHA512_BLOCK_LENGTH]; 89} SHA512_CTX; 90 91typedef SHA512_CTX SHA384_CTX; 92 93 94/*** SHA-256/384/512 Function Prototypes ******************************/ 95 96void SHA256_Init __P((SHA256_CTX *)); 97void SHA256_Update __P((SHA256_CTX*, const u_int8_t*, size_t)); 98void SHA256_Final __P((u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*)); 99char* SHA256_End __P((SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH])); 100char* SHA256_Data __P((const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH])); 101 102void SHA384_Init __P((SHA384_CTX*)); 103void SHA384_Update __P((SHA384_CTX*, const u_int8_t*, size_t)); 104void SHA384_Final __P((u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*)); 105char* SHA384_End __P((SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH])); 106char* SHA384_Data __P((const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH])); 107 108void SHA512_Init __P((SHA512_CTX*)); 109void SHA512_Update __P((SHA512_CTX*, const u_int8_t*, size_t)); 110void SHA512_Final __P((u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*)); 111char* SHA512_End __P((SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH])); 112char* SHA512_Data __P((const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH])); 113 114struct env_md_st *EVP_sha2_256 __P((void)); 115struct env_md_st *EVP_sha2_384 __P((void)); 116struct env_md_st *EVP_sha2_512 __P((void)); 117 118#ifdef __cplusplus 119} 120#endif /* __cplusplus */ 121 122#endif /* __SHA2_H__ */ 123