1/* $OpenBSD: sha2.h,v 1.10 2016/09/03 17:00:29 tedu 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#ifndef _SHA2_H 38#define _SHA2_H 39 40 41/*** SHA-256/384/512 Various Length Definitions ***********************/ 42#define SHA224_BLOCK_LENGTH 64 43#define SHA224_DIGEST_LENGTH 28 44#define SHA224_DIGEST_STRING_LENGTH (SHA224_DIGEST_LENGTH * 2 + 1) 45#define SHA256_BLOCK_LENGTH 64 46#define SHA256_DIGEST_LENGTH 32 47#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) 48#define SHA384_BLOCK_LENGTH 128 49#define SHA384_DIGEST_LENGTH 48 50#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) 51#define SHA512_BLOCK_LENGTH 128 52#define SHA512_DIGEST_LENGTH 64 53#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) 54#define SHA512_256_BLOCK_LENGTH 128 55#define SHA512_256_DIGEST_LENGTH 32 56#define SHA512_256_DIGEST_STRING_LENGTH (SHA512_256_DIGEST_LENGTH * 2 + 1) 57 58 59/*** SHA-224/256/384/512 Context Structure *******************************/ 60typedef struct _SHA2_CTX { 61 union { 62 u_int32_t st32[8]; 63 u_int64_t st64[8]; 64 } state; 65 u_int64_t bitcount[2]; 66 u_int8_t buffer[SHA512_BLOCK_LENGTH]; 67} SHA2_CTX; 68 69__BEGIN_DECLS 70void SHA224Init(SHA2_CTX *); 71void SHA224Transform(u_int32_t state[8], const u_int8_t [SHA224_BLOCK_LENGTH]); 72void SHA224Update(SHA2_CTX *, const u_int8_t *, size_t) 73 __attribute__((__bounded__(__string__,2,3))); 74void SHA224Pad(SHA2_CTX *); 75void SHA224Final(u_int8_t [SHA224_DIGEST_LENGTH], SHA2_CTX *) 76 __attribute__((__bounded__(__minbytes__,1,SHA224_DIGEST_LENGTH))); 77char *SHA224End(SHA2_CTX *, char *) 78 __attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH))); 79char *SHA224File(const char *, char *) 80 __attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH))); 81char *SHA224FileChunk(const char *, char *, off_t, off_t) 82 __attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH))); 83char *SHA224Data(const u_int8_t *, size_t, char *) 84 __attribute__((__bounded__(__string__,1,2))) 85 __attribute__((__bounded__(__minbytes__,3,SHA224_DIGEST_STRING_LENGTH))); 86 87void SHA256Init(SHA2_CTX *); 88void SHA256Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]); 89void SHA256Update(SHA2_CTX *, const u_int8_t *, size_t) 90 __attribute__((__bounded__(__string__,2,3))); 91void SHA256Pad(SHA2_CTX *); 92void SHA256Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA2_CTX *) 93 __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH))); 94char *SHA256End(SHA2_CTX *, char *) 95 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); 96char *SHA256File(const char *, char *) 97 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); 98char *SHA256FileChunk(const char *, char *, off_t, off_t) 99 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); 100char *SHA256Data(const u_int8_t *, size_t, char *) 101 __attribute__((__bounded__(__string__,1,2))) 102 __attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH))); 103 104void SHA384Init(SHA2_CTX *); 105void SHA384Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]); 106void SHA384Update(SHA2_CTX *, const u_int8_t *, size_t) 107 __attribute__((__bounded__(__string__,2,3))); 108void SHA384Pad(SHA2_CTX *); 109void SHA384Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA2_CTX *) 110 __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH))); 111char *SHA384End(SHA2_CTX *, char *) 112 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); 113char *SHA384File(const char *, char *) 114 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); 115char *SHA384FileChunk(const char *, char *, off_t, off_t) 116 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); 117char *SHA384Data(const u_int8_t *, size_t, char *) 118 __attribute__((__bounded__(__string__,1,2))) 119 __attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH))); 120 121void SHA512Init(SHA2_CTX *); 122void SHA512Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]); 123void SHA512Update(SHA2_CTX *, const u_int8_t *, size_t) 124 __attribute__((__bounded__(__string__,2,3))); 125void SHA512Pad(SHA2_CTX *); 126void SHA512Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA2_CTX *) 127 __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH))); 128char *SHA512End(SHA2_CTX *, char *) 129 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); 130char *SHA512File(const char *, char *) 131 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); 132char *SHA512FileChunk(const char *, char *, off_t, off_t) 133 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); 134char *SHA512Data(const u_int8_t *, size_t, char *) 135 __attribute__((__bounded__(__string__,1,2))) 136 __attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH))); 137 138void SHA512_256Init(SHA2_CTX *); 139void SHA512_256Transform(u_int64_t state[8], const u_int8_t [SHA512_256_BLOCK_LENGTH]); 140void SHA512_256Update(SHA2_CTX *, const u_int8_t *, size_t) 141 __attribute__((__bounded__(__string__,2,3))); 142void SHA512_256Pad(SHA2_CTX *); 143void SHA512_256Final(u_int8_t [SHA512_256_DIGEST_LENGTH], SHA2_CTX *) 144 __attribute__((__bounded__(__minbytes__,1,SHA512_256_DIGEST_LENGTH))); 145char *SHA512_256End(SHA2_CTX *, char *) 146 __attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH))); 147char *SHA512_256File(const char *, char *) 148 __attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH))); 149char *SHA512_256FileChunk(const char *, char *, off_t, off_t) 150 __attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH))); 151char *SHA512_256Data(const u_int8_t *, size_t, char *) 152 __attribute__((__bounded__(__string__,1,2))) 153 __attribute__((__bounded__(__minbytes__,3,SHA512_256_DIGEST_STRING_LENGTH))); 154__END_DECLS 155 156#endif /* _SHA2_H */ 157