release/src/router/openssl/crypto/md4/md4_locl.h

   1 /* crypto/md4/md4_locl.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 #include <stdlib.h>
  60 #include <string.h>
  61 #include <openssl/opensslconf.h>
  62 #include <openssl/md4.h>
  63
  64 #ifndef MD4_LONG_LOG2
  65 #define MD4_LONG_LOG2 2 /* default to 32 bits */
  66 #endif
  67
  68 void md4_block_data_order (MD4_CTX *c, const void *p,size_t num);
  69
  70 #define DATA_ORDER_IS_LITTLE_ENDIAN
  71
  72 #define HASH_LONG               MD4_LONG
  73 #define HASH_CTX                MD4_CTX
  74 #define HASH_CBLOCK             MD4_CBLOCK
  75 #define HASH_UPDATE             MD4_Update
  76 #define HASH_TRANSFORM          MD4_Transform
  77 #define HASH_FINAL              MD4_Final
  78 #define HASH_MAKE_STRING(c,s)   do {    \
  79         unsigned long ll;               \
  80         ll=(c)->A; (void)HOST_l2c(ll,(s));      \
  81         ll=(c)->B; (void)HOST_l2c(ll,(s));      \
  82         ll=(c)->C; (void)HOST_l2c(ll,(s));      \
  83         ll=(c)->D; (void)HOST_l2c(ll,(s));      \
  84         } while (0)
  85 #define HASH_BLOCK_DATA_ORDER   md4_block_data_order
  86
  87 #include "md32_common.h"
  88
  89 /*
  90 #define F(x,y,z)        (((x) & (y))  |  ((~(x)) & (z)))
  91 #define G(x,y,z)        (((x) & (y))  |  ((x) & ((z))) | ((y) & ((z))))
  92 */
  93
  94 /* As pointed out by Wei Dai <weidai@eskimo.com>, the above can be
  95  * simplified to the code below.  Wei attributes these optimizations
  96  * to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel.
  97  */
  98 #define F(b,c,d)        ((((c) ^ (d)) & (b)) ^ (d))
  99 #define G(b,c,d)        (((b) & (c)) | ((b) & (d)) | ((c) & (d)))
 100 #define H(b,c,d)        ((b) ^ (c) ^ (d))
 101
 102 #define R0(a,b,c,d,k,s,t) { \
 103         a+=((k)+(t)+F((b),(c),(d))); \
 104         a=ROTATE(a,s); };
 105
 106 #define R1(a,b,c,d,k,s,t) { \
 107         a+=((k)+(t)+G((b),(c),(d))); \
 108         a=ROTATE(a,s); };\
 109
 110 #define R2(a,b,c,d,k,s,t) { \
 111         a+=((k)+(t)+H((b),(c),(d))); \
 112         a=ROTATE(a,s); };