sha.h revision 55714
1/* crypto/sha/sha.h */ 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59#ifndef HEADER_SHA_H 60#define HEADER_SHA_H 61 62#ifdef __cplusplus 63extern "C" { 64#endif 65 66#ifdef NO_SHA 67#error SHA is disabled. 68#endif 69 70/* 71 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 72 * ! SHA_LONG has to be at least 32 bits wide. If it's wider, then ! 73 * ! SHA_LONG_LOG2 has to be defined along. ! 74 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 75 */ 76 77#if defined(WIN16) || defined(__LP32__) 78#define SHA_LONG unsigned long 79#elif defined(_CRAY) || defined(__ILP64__) 80#define SHA_LONG unsigned long 81#define SHA_LONG_LOG2 3 82#else 83#define SHA_LONG unsigned int 84#endif 85 86#define SHA_LBLOCK 16 87#define SHA_CBLOCK (SHA_LBLOCK*4) /* SHA treats input data as a 88 * contiguous array of 32 bit 89 * wide big-endian values. */ 90#define SHA_LAST_BLOCK (SHA_CBLOCK-8) 91#define SHA_DIGEST_LENGTH 20 92 93typedef struct SHAstate_st 94 { 95 SHA_LONG h0,h1,h2,h3,h4; 96 SHA_LONG Nl,Nh; 97 SHA_LONG data[SHA_LBLOCK]; 98 int num; 99 } SHA_CTX; 100 101#ifndef NO_SHA0 102void SHA_Init(SHA_CTX *c); 103void SHA_Update(SHA_CTX *c, const unsigned char *data, unsigned long len); 104void SHA_Final(unsigned char *md, SHA_CTX *c); 105unsigned char *SHA(const unsigned char *d, unsigned long n,unsigned char *md); 106void SHA_Transform(SHA_CTX *c, unsigned char *data); 107#endif 108#ifndef NO_SHA1 109void SHA1_Init(SHA_CTX *c); 110void SHA1_Update(SHA_CTX *c, const unsigned char *data, unsigned long len); 111void SHA1_Final(unsigned char *md, SHA_CTX *c); 112unsigned char *SHA1(const unsigned char *d, unsigned long n,unsigned char *md); 113void SHA1_Transform(SHA_CTX *c, unsigned char *data); 114#endif 115#ifdef __cplusplus 116} 117#endif 118 119#endif 120