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src/libdigidoc/openssl/crypto/md4/md4.h
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00001 /* crypto/md4/md4.h */
00002 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
00003  * All rights reserved.
00004  *
00005  * This package is an SSL implementation written
00006  * by Eric Young (eay@cryptsoft.com).
00007  * The implementation was written so as to conform with Netscapes SSL.
00008  * 
00009  * This library is free for commercial and non-commercial use as long as
00010  * the following conditions are aheared to.  The following conditions
00011  * apply to all code found in this distribution, be it the RC4, RSA,
00012  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
00013  * included with this distribution is covered by the same copyright terms
00014  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
00015  * 
00016  * Copyright remains Eric Young's, and as such any Copyright notices in
00017  * the code are not to be removed.
00018  * If this package is used in a product, Eric Young should be given attribution
00019  * as the author of the parts of the library used.
00020  * This can be in the form of a textual message at program startup or
00021  * in documentation (online or textual) provided with the package.
00022  * 
00023  * Redistribution and use in source and binary forms, with or without
00024  * modification, are permitted provided that the following conditions
00025  * are met:
00026  * 1. Redistributions of source code must retain the copyright
00027  *    notice, this list of conditions and the following disclaimer.
00028  * 2. Redistributions in binary form must reproduce the above copyright
00029  *    notice, this list of conditions and the following disclaimer in the
00030  *    documentation and/or other materials provided with the distribution.
00031  * 3. All advertising materials mentioning features or use of this software
00032  *    must display the following acknowledgement:
00033  *    "This product includes cryptographic software written by
00034  *     Eric Young (eay@cryptsoft.com)"
00035  *    The word 'cryptographic' can be left out if the rouines from the library
00036  *    being used are not cryptographic related :-).
00037  * 4. If you include any Windows specific code (or a derivative thereof) from 
00038  *    the apps directory (application code) you must include an acknowledgement:
00039  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
00040  * 
00041  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
00042  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00043  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00044  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
00045  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00046  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00047  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00048  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00049  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00050  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00051  * SUCH DAMAGE.
00052  * 
00053  * The licence and distribution terms for any publically available version or
00054  * derivative of this code cannot be changed.  i.e. this code cannot simply be
00055  * copied and put under another distribution licence
00056  * [including the GNU Public Licence.]
00057  */
00058 
00059 #ifndef HEADER_MD4_H
00060 #define HEADER_MD4_H
00061 
00062 #include <openssl/e_os2.h>
00063 #include <stddef.h>
00064 
00065 #ifdef  __cplusplus
00066 extern "C" {
00067 #endif
00068 
00069 #ifdef OPENSSL_NO_MD4
00070 #error MD4 is disabled.
00071 #endif
00072 
00073 /*
00074  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
00075  * ! MD4_LONG has to be at least 32 bits wide. If it's wider, then !
00076  * ! MD4_LONG_LOG2 has to be defined along.                        !
00077  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
00078  */
00079 
00080 #if defined(OPENSSL_SYS_WIN16) || defined(__LP32__)
00081 #define MD4_LONG unsigned long
00082 #elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
00083 #define MD4_LONG unsigned long
00084 #define MD4_LONG_LOG2 3
00085 /*
00086  * _CRAY note. I could declare short, but I have no idea what impact
00087  * does it have on performance on none-T3E machines. I could declare
00088  * int, but at least on C90 sizeof(int) can be chosen at compile time.
00089  * So I've chosen long...
00090  *                                      <appro@fy.chalmers.se>
00091  */
00092 #else
00093 #define MD4_LONG unsigned int
00094 #endif
00095 
00096 #define MD4_CBLOCK      64
00097 #define MD4_LBLOCK      (MD4_CBLOCK/4)
00098 #define MD4_DIGEST_LENGTH 16
00099 
00100 typedef struct MD4state_st
00101         {
00102         MD4_LONG A,B,C,D;
00103         MD4_LONG Nl,Nh;
00104         MD4_LONG data[MD4_LBLOCK];
00105         unsigned int num;
00106         } MD4_CTX;
00107 
00108 #ifdef OPENSSL_FIPS
00109 int private_MD4_Init(MD4_CTX *c);
00110 #endif
00111 int MD4_Init(MD4_CTX *c);
00112 int MD4_Update(MD4_CTX *c, const void *data, size_t len);
00113 int MD4_Final(unsigned char *md, MD4_CTX *c);
00114 unsigned char *MD4(const unsigned char *d, size_t n, unsigned char *md);
00115 void MD4_Transform(MD4_CTX *c, const unsigned char *b);
00116 #ifdef  __cplusplus
00117 }
00118 #endif
00119 
00120 #endif
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