1 /*

     2  * LIBOIL - Library of Optimized Inner Loops

     3  * Copyright (c) 2004 David A. Schleef <ds@schleef.org>

     4  * All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions

     8  * are met:

     9  * 1. Redistributions of source code must retain the above copyright

    10  *    notice, this list of conditions and the following disclaimer.

    11  * 2. Redistributions in binary form must reproduce the above copyright

    12  *    notice, this list of conditions and the following disclaimer in the

    13  *    documentation and/or other materials provided with the distribution.

    14  * 

    15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

    16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,

    19  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    20  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

    21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

    22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

    23  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

    24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    25  * POSSIBILITY OF SUCH DAMAGE.

    26  */

    27 //Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

    28 

    29 #ifdef HAVE_CONFIG_H

    30 #include "config.h"

    31 #endif

    32 

    33 #include <liboil/liboil.h>

    34 #include "md5.h"

    35 

    36 

    37 /**

    38  * oil_md5:

    39  * @i_4:

    40  * @s_16:

    41  *

    42  * Performs an MD5 checksum iteration.  The iteration operates on

    43  * the 64 bytes contained in @s_16, and changes the hash contained

    44  * in @i_4.  This only implements a portion of the MD5 algorithm.

    45  * The full MD5 algorithm requires initializing the hash

    46  * with a specific value and additional handling of bytes at the

    47  * end of the stream.

    48  *

    49  * See also the md5 example in the Liboil source code.

    50  *

    51  * FIXME: need a reference here

    52  */

    53 OIL_DEFINE_CLASS (md5, "uint32_t *i_4, uint32_t *s_16");

    54 

    55 #ifdef WORDS_BIGENDIAN

    56 #define uint32_to_host(a) \

    57   ((((a)&0xff)<<24)|(((a)&0xff00)<<8)|(((a)&0xff0000)>>8)|(((a)>>24)&0xff))

    58 #else

    59 #define uint32_to_host(a) (a)

    60 #endif

    61 

    62 #define F1(x, y, z) (z ^ (x & (y ^ z)))

    63 #define F2(x, y, z) F1(z, x, y)

    64 #define F3(x, y, z) (x ^ y ^ z)

    65 #define F4(x, y, z) (y ^ (x | ~z))

    66 

    67 #define MD5STEP(f,w,x,y,z,in,offset,s) \

    68   (w += f(x,y,z) + uint32_to_host(in) + offset, w = (w<<s | w>>(32-s)) + x)

    69 

    70 

    71 static void

    72 md5_c(uint32_t *state, uint32_t *src)

    73 {

    74   uint32_t a,b,c,d;

    75 

    76   a = state[0];

    77   b = state[1];

    78   c = state[2];

    79   d = state[3];

    80 

    81   MD5STEP(F1, a, b, c, d, src[0], 0xd76aa478, 7);

    82   MD5STEP(F1, d, a, b, c, src[1], 0xe8c7b756, 12);

    83   MD5STEP(F1, c, d, a, b, src[2], 0x242070db, 17);

    84   MD5STEP(F1, b, c, d, a, src[3], 0xc1bdceee, 22);

    85   MD5STEP(F1, a, b, c, d, src[4], 0xf57c0faf, 7);

    86   MD5STEP(F1, d, a, b, c, src[5], 0x4787c62a, 12);

    87   MD5STEP(F1, c, d, a, b, src[6], 0xa8304613, 17);

    88   MD5STEP(F1, b, c, d, a, src[7], 0xfd469501, 22);

    89   MD5STEP(F1, a, b, c, d, src[8], 0x698098d8, 7);

    90   MD5STEP(F1, d, a, b, c, src[9], 0x8b44f7af, 12);

    91   MD5STEP(F1, c, d, a, b, src[10], 0xffff5bb1, 17);

    92   MD5STEP(F1, b, c, d, a, src[11], 0x895cd7be, 22);

    93   MD5STEP(F1, a, b, c, d, src[12], 0x6b901122, 7);

    94   MD5STEP(F1, d, a, b, c, src[13], 0xfd987193, 12);

    95   MD5STEP(F1, c, d, a, b, src[14], 0xa679438e, 17);

    96   MD5STEP(F1, b, c, d, a, src[15], 0x49b40821, 22);

    97 

    98   MD5STEP(F2, a, b, c, d, src[1], 0xf61e2562, 5);

    99   MD5STEP(F2, d, a, b, c, src[6], 0xc040b340, 9);

   100   MD5STEP(F2, c, d, a, b, src[11], 0x265e5a51, 14);

   101   MD5STEP(F2, b, c, d, a, src[0], 0xe9b6c7aa, 20);

   102   MD5STEP(F2, a, b, c, d, src[5], 0xd62f105d, 5);

   103   MD5STEP(F2, d, a, b, c, src[10], 0x02441453, 9);

   104   MD5STEP(F2, c, d, a, b, src[15], 0xd8a1e681, 14);

   105   MD5STEP(F2, b, c, d, a, src[4], 0xe7d3fbc8, 20);

   106   MD5STEP(F2, a, b, c, d, src[9], 0x21e1cde6, 5);

   107   MD5STEP(F2, d, a, b, c, src[14], 0xc33707d6, 9);

   108   MD5STEP(F2, c, d, a, b, src[3], 0xf4d50d87, 14);

   109   MD5STEP(F2, b, c, d, a, src[8], 0x455a14ed, 20);

   110   MD5STEP(F2, a, b, c, d, src[13], 0xa9e3e905, 5);

   111   MD5STEP(F2, d, a, b, c, src[2], 0xfcefa3f8, 9);

   112   MD5STEP(F2, c, d, a, b, src[7], 0x676f02d9, 14);

   113   MD5STEP(F2, b, c, d, a, src[12], 0x8d2a4c8a, 20);

   114 

   115   MD5STEP(F3, a, b, c, d, src[5], 0xfffa3942, 4);

   116   MD5STEP(F3, d, a, b, c, src[8], 0x8771f681, 11);

   117   MD5STEP(F3, c, d, a, b, src[11], 0x6d9d6122, 16);

   118   MD5STEP(F3, b, c, d, a, src[14], 0xfde5380c, 23);

   119   MD5STEP(F3, a, b, c, d, src[1], 0xa4beea44, 4);

   120   MD5STEP(F3, d, a, b, c, src[4], 0x4bdecfa9, 11);

   121   MD5STEP(F3, c, d, a, b, src[7], 0xf6bb4b60, 16);

   122   MD5STEP(F3, b, c, d, a, src[10], 0xbebfbc70, 23);

   123   MD5STEP(F3, a, b, c, d, src[13], 0x289b7ec6, 4);

   124   MD5STEP(F3, d, a, b, c, src[0], 0xeaa127fa, 11);

   125   MD5STEP(F3, c, d, a, b, src[3], 0xd4ef3085, 16);

   126   MD5STEP(F3, b, c, d, a, src[6], 0x04881d05, 23);

   127   MD5STEP(F3, a, b, c, d, src[9], 0xd9d4d039, 4);

   128   MD5STEP(F3, d, a, b, c, src[12], 0xe6db99e5, 11);

   129   MD5STEP(F3, c, d, a, b, src[15], 0x1fa27cf8, 16);

   130   MD5STEP(F3, b, c, d, a, src[2], 0xc4ac5665, 23);

   131 

   132   MD5STEP(F4, a, b, c, d, src[0], 0xf4292244, 6);

   133   MD5STEP(F4, d, a, b, c, src[7], 0x432aff97, 10);

   134   MD5STEP(F4, c, d, a, b, src[14], 0xab9423a7, 15);

   135   MD5STEP(F4, b, c, d, a, src[5], 0xfc93a039, 21);

   136   MD5STEP(F4, a, b, c, d, src[12], 0x655b59c3, 6);

   137   MD5STEP(F4, d, a, b, c, src[3], 0x8f0ccc92, 10);

   138   MD5STEP(F4, c, d, a, b, src[10], 0xffeff47d, 15);

   139   MD5STEP(F4, b, c, d, a, src[1], 0x85845dd1, 21);

   140   MD5STEP(F4, a, b, c, d, src[8], 0x6fa87e4f, 6);

   141   MD5STEP(F4, d, a, b, c, src[15], 0xfe2ce6e0, 10);

   142   MD5STEP(F4, c, d, a, b, src[6], 0xa3014314, 15);

   143   MD5STEP(F4, b, c, d, a, src[13], 0x4e0811a1, 21);

   144   MD5STEP(F4, a, b, c, d, src[4], 0xf7537e82, 6);

   145   MD5STEP(F4, d, a, b, c, src[11], 0xbd3af235, 10);

   146   MD5STEP(F4, c, d, a, b, src[2], 0x2ad7d2bb, 15);

   147   MD5STEP(F4, b, c, d, a, src[9], 0xeb86d391, 21);

   148 

   149   state[0] += a;

   150   state[1] += b;

   151   state[2] += c;

   152   state[3] += d;

   153 }

   154 

   155 

   156 OIL_DEFINE_IMPL_REF (md5_c, md5);

   157 

   158 

   159 

   160 #ifdef	__SYMBIAN32__

   161  

   162 OilFunctionClass* __oil_function_class_md5() {

   163 		return &_oil_function_class_md5;

   164 }

   165 #endif

   166 

   167 

   168 

   169 #ifdef	__SYMBIAN32__

   170  

   171 OilFunctionImpl* __oil_function_impl_md5_c() {

   172 		return &_oil_function_impl_md5_c;

   173 }

   174 #endif

   175 

   176 

   177 

   178 #ifdef	__SYMBIAN32__

   179  

   180 EXPORT_C void** _oil_function_class_ptr_md5 ()	{

   181 	oil_function_class_ptr_md5 = __oil_function_class_md5();

   182 	return &oil_function_class_ptr_md5->func;

   183 	}

   184 #endif

   185