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 *******************************/ 68 typedef 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; 73 typedef 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 79 typedef SHA512_CTX SHA384_CTX; 80 81 void SHA256_Init(SHA256_CTX *); 82 void SHA256_Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]); 83 void SHA256_Update(SHA256_CTX *, const u_int8_t *, size_t) 84 __attribute__((__bounded__(__string__,2,3))); 85 void SHA256_Pad(SHA256_CTX *); 86 void SHA256_Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA256_CTX *) 87 __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH))); 88 char *SHA256_End(SHA256_CTX *, char *) 89 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); 90 char *SHA256_File(const char *, char *) 91 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); 92 char *SHA256_FileChunk(const char *, char *, off_t, off_t) 93 __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); 94 char *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 98 void SHA384_Init(SHA384_CTX *); 99 void SHA384_Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]); 100 void SHA384_Update(SHA384_CTX *, const u_int8_t *, size_t) 101 __attribute__((__bounded__(__string__,2,3))); 102 void SHA384_Pad(SHA384_CTX *); 103 void SHA384_Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA384_CTX *) 104 __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH))); 105 char *SHA384_End(SHA384_CTX *, char *) 106 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); 107 char *SHA384_File(const char *, char *) 108 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); 109 char *SHA384_FileChunk(const char *, char *, off_t, off_t) 110 __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); 111 char *SHA384_Data(const u_int8_t *, size_t, char *) 112 __attribute__((__bounded__(__string__,1,2))) 113 __attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH))); 114 115 void SHA512_Init(SHA512_CTX *); 116 void SHA512_Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]); 117 void SHA512_Update(SHA512_CTX *, const u_int8_t *, size_t) 118 __attribute__((__bounded__(__string__,2,3))); 119 void SHA512_Pad(SHA512_CTX *); 120 void SHA512_Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA512_CTX *) 121 __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH))); 122 char *SHA512_End(SHA512_CTX *, char *) 123 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); 124 char *SHA512_File(const char *, char *) 125 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); 126 char *SHA512_FileChunk(const char *, char *, off_t, off_t) 127 __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); 128 char *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