sha2.h revision 323134
1/* $OpenBSD: sha2.h,v 1.6 2004/06/22 01:57:30 jfb Exp */ 2 3/* 4 * FILE: sha2.h 5 * AUTHOR: Aaron D. Gifford <me@aarongifford.com> 6 * 7 * Copyright (c) 2000-2001, Aaron D. Gifford 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the copyright holder nor the names of contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $ 35 */ 36 37/* OPENBSD ORIGINAL: include/sha2.h */ 38 39#ifndef _SSHSHA2_H 40#define _SSHSHA2_H 41 42#include "includes.h" 43 44#ifdef WITH_OPENSSL 45# include <openssl/opensslv.h> 46# if !defined(HAVE_EVP_SHA256) && (OPENSSL_VERSION_NUMBER >= 0x00907000L) 47# define _NEED_SHA2 1 48# endif 49#else 50# define _NEED_SHA2 1 51#endif 52 53#if defined(_NEED_SHA2) && !defined(HAVE_SHA256_UPDATE) 54 55/*** SHA-256/384/512 Various Length Definitions ***********************/ 56#define SHA256_BLOCK_LENGTH 64 57#define SHA256_DIGEST_LENGTH 32 58#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) 59#define SHA384_BLOCK_LENGTH 128 60#define SHA384_DIGEST_LENGTH 48 61#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) 62#define SHA512_BLOCK_LENGTH 128 63#define SHA512_DIGEST_LENGTH 64 64#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) 65 66 67/*** SHA-256/384/512 Context Structures *******************************/ 68typedef struct _SHA256_CTX { 69 u_int32_t state[8]; 70 u_int64_t bitcount; 71 u_int8_t buffer[SHA256_BLOCK_LENGTH]; 72} SHA256_CTX; 73typedef struct _SHA512_CTX { 74 u_int64_t state[8]; 75 u_int64_t bitcount[2]; 76 u_int8_t buffer[SHA512_BLOCK_LENGTH]; 77} SHA512_CTX; 78 79typedef SHA512_CTX SHA384_CTX; 80 81void SHA256_Init(SHA256_CTX *); 82void SHA256_Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]); 83void SHA256_Update(SHA256_CTX *, const u_int8_t *, size_t) 84 __attribute__((__bounded__(__string__,2,3))); 85void SHA256_Pad(SHA256_CTX *); 86void SHA256_Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA256_CTX *) 87 __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH))); 88char *SHA256_End(SHA256_CTX *, char *) 89 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); 90char *SHA256_File(const char *, char *) 91 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); 92char *SHA256_FileChunk(const char *, char *, off_t, off_t) 93 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); 94char *SHA256_Data(const u_int8_t *, size_t, char *) 95 __attribute__((__bounded__(__string__,1,2))) 96 __attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH))); 97 98void SHA384_Init(SHA384_CTX *); 99void SHA384_Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]); 100void SHA384_Update(SHA384_CTX *, const u_int8_t *, size_t) 101 __attribute__((__bounded__(__string__,2,3))); 102void SHA384_Pad(SHA384_CTX *); 103void SHA384_Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA384_CTX *) 104 __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH))); 105char *SHA384_End(SHA384_CTX *, char *) 106 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); 107char *SHA384_File(const char *, char *) 108 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); 109char *SHA384_FileChunk(const char *, char *, off_t, off_t) 110 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); 111char *SHA384_Data(const u_int8_t *, size_t, char *) 112 __attribute__((__bounded__(__string__,1,2))) 113 __attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH))); 114 115void SHA512_Init(SHA512_CTX *); 116void SHA512_Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]); 117void SHA512_Update(SHA512_CTX *, const u_int8_t *, size_t) 118 __attribute__((__bounded__(__string__,2,3))); 119void SHA512_Pad(SHA512_CTX *); 120void SHA512_Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA512_CTX *) 121 __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH))); 122char *SHA512_End(SHA512_CTX *, char *) 123 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); 124char *SHA512_File(const char *, char *) 125 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); 126char *SHA512_FileChunk(const char *, char *, off_t, off_t) 127 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); 128char *SHA512_Data(const u_int8_t *, size_t, char *) 129 __attribute__((__bounded__(__string__,1,2))) 130 __attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH))); 131 132#endif /* defined(_NEED_SHA2) && !defined(HAVE_SHA256_UPDATE) */ 133 134#endif /* _SSHSHA2_H */ 135