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src/libdigidoc/openssl/crypto/md4/md4_locl.h
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00001 /* crypto/md4/md4_locl.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 #include <stdlib.h>
00060 #include <string.h>
00061 #include <openssl/opensslconf.h>
00062 #include <openssl/md4.h>
00063 
00064 #ifndef MD4_LONG_LOG2
00065 #define MD4_LONG_LOG2 2 /* default to 32 bits */
00066 #endif
00067 
00068 void md4_block_data_order (MD4_CTX *c, const void *p,size_t num);
00069 
00070 #define DATA_ORDER_IS_LITTLE_ENDIAN
00071 
00072 #define HASH_LONG               MD4_LONG
00073 #define HASH_CTX                MD4_CTX
00074 #define HASH_CBLOCK             MD4_CBLOCK
00075 #define HASH_UPDATE             MD4_Update
00076 #define HASH_TRANSFORM          MD4_Transform
00077 #define HASH_FINAL              MD4_Final
00078 #define HASH_MAKE_STRING(c,s)   do {    \
00079         unsigned long ll;               \
00080         ll=(c)->A; HOST_l2c(ll,(s));    \
00081         ll=(c)->B; HOST_l2c(ll,(s));    \
00082         ll=(c)->C; HOST_l2c(ll,(s));    \
00083         ll=(c)->D; HOST_l2c(ll,(s));    \
00084         } while (0)
00085 #define HASH_BLOCK_DATA_ORDER   md4_block_data_order
00086 
00087 #include "md32_common.h"
00088 
00089 /*
00090 #define F(x,y,z)        (((x) & (y))  |  ((~(x)) & (z)))
00091 #define G(x,y,z)        (((x) & (y))  |  ((x) & ((z))) | ((y) & ((z))))
00092 */
00093 
00094 /* As pointed out by Wei Dai <weidai@eskimo.com>, the above can be
00095  * simplified to the code below.  Wei attributes these optimizations
00096  * to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel.
00097  */
00098 #define F(b,c,d)        ((((c) ^ (d)) & (b)) ^ (d))
00099 #define G(b,c,d)        (((b) & (c)) | ((b) & (d)) | ((c) & (d)))
00100 #define H(b,c,d)        ((b) ^ (c) ^ (d))
00101 
00102 #define R0(a,b,c,d,k,s,t) { \
00103         a+=((k)+(t)+F((b),(c),(d))); \
00104         a=ROTATE(a,s); };
00105 
00106 #define R1(a,b,c,d,k,s,t) { \
00107         a+=((k)+(t)+G((b),(c),(d))); \
00108         a=ROTATE(a,s); };\
00109 
00110 #define R2(a,b,c,d,k,s,t) { \
00111         a+=((k)+(t)+H((b),(c),(d))); \
00112         a=ROTATE(a,s); };
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