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src/libdigidoc/openssl/crypto/md5/md5_locl.h
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00001 /* crypto/md5/md5_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/e_os2.h>
00062 #include <openssl/md5.h>
00063 
00064 #ifndef MD5_LONG_LOG2
00065 #define MD5_LONG_LOG2 2 /* default to 32 bits */
00066 #endif
00067 
00068 #ifdef MD5_ASM
00069 # if defined(__i386) || defined(__i386__) || defined(_M_IX86) || defined(__INTEL__) || \
00070      defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
00071 #  define md5_block_data_order md5_block_asm_data_order
00072 # endif
00073 #endif
00074 
00075 void md5_block_data_order (MD5_CTX *c, const void *p,size_t num);
00076 
00077 #define DATA_ORDER_IS_LITTLE_ENDIAN
00078 
00079 #define HASH_LONG               MD5_LONG
00080 #define HASH_CTX                MD5_CTX
00081 #define HASH_CBLOCK             MD5_CBLOCK
00082 #define HASH_UPDATE             MD5_Update
00083 #define HASH_TRANSFORM          MD5_Transform
00084 #define HASH_FINAL              MD5_Final
00085 #define HASH_MAKE_STRING(c,s)   do {    \
00086         unsigned long ll;               \
00087         ll=(c)->A; HOST_l2c(ll,(s));    \
00088         ll=(c)->B; HOST_l2c(ll,(s));    \
00089         ll=(c)->C; HOST_l2c(ll,(s));    \
00090         ll=(c)->D; HOST_l2c(ll,(s));    \
00091         } while (0)
00092 #define HASH_BLOCK_DATA_ORDER   md5_block_data_order
00093 
00094 #include "md32_common.h"
00095 
00096 /*
00097 #define F(x,y,z)        (((x) & (y))  |  ((~(x)) & (z)))
00098 #define G(x,y,z)        (((x) & (z))  |  ((y) & (~(z))))
00099 */
00100 
00101 /* As pointed out by Wei Dai <weidai@eskimo.com>, the above can be
00102  * simplified to the code below.  Wei attributes these optimizations
00103  * to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel.
00104  */
00105 #define F(b,c,d)        ((((c) ^ (d)) & (b)) ^ (d))
00106 #define G(b,c,d)        ((((b) ^ (c)) & (d)) ^ (c))
00107 #define H(b,c,d)        ((b) ^ (c) ^ (d))
00108 #define I(b,c,d)        (((~(d)) | (b)) ^ (c))
00109 
00110 #define R0(a,b,c,d,k,s,t) { \
00111         a+=((k)+(t)+F((b),(c),(d))); \
00112         a=ROTATE(a,s); \
00113         a+=b; };\
00114 
00115 #define R1(a,b,c,d,k,s,t) { \
00116         a+=((k)+(t)+G((b),(c),(d))); \
00117         a=ROTATE(a,s); \
00118         a+=b; };
00119 
00120 #define R2(a,b,c,d,k,s,t) { \
00121         a+=((k)+(t)+H((b),(c),(d))); \
00122         a=ROTATE(a,s); \
00123         a+=b; };
00124 
00125 #define R3(a,b,c,d,k,s,t) { \
00126         a+=((k)+(t)+I((b),(c),(d))); \
00127         a=ROTATE(a,s); \
00128         a+=b; };
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