LCOV - code coverage report
Current view: top level - md4 - md4_dgst.c (source / functions) Hit Total Coverage
Test: lcov_coverage_final.info Lines: 68 68 100.0 %
Date: 2014-08-02 Functions: 2 2 100.0 %
Branches: 2 2 100.0 %

           Branch data     Line data    Source code
       1                 :            : /* crypto/md4/md4_dgst.c */
       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 <stdio.h>
      60                 :            : #include <openssl/opensslv.h>
      61                 :            : #include "md4_locl.h"
      62                 :            : 
      63                 :            : const char MD4_version[]="MD4" OPENSSL_VERSION_PTEXT;
      64                 :            : 
      65                 :            : /* Implemented from RFC1186 The MD4 Message-Digest Algorithm
      66                 :            :  */
      67                 :            : 
      68                 :            : #define INIT_DATA_A (unsigned long)0x67452301L
      69                 :            : #define INIT_DATA_B (unsigned long)0xefcdab89L
      70                 :            : #define INIT_DATA_C (unsigned long)0x98badcfeL
      71                 :            : #define INIT_DATA_D (unsigned long)0x10325476L
      72                 :            : 
      73                 :          7 : int MD4_Init(MD4_CTX *c)
      74                 :            :         {
      75                 :            :         memset (c,0,sizeof(*c));
      76                 :          7 :         c->A=INIT_DATA_A;
      77                 :          7 :         c->B=INIT_DATA_B;
      78                 :          7 :         c->C=INIT_DATA_C;
      79                 :          7 :         c->D=INIT_DATA_D;
      80                 :          7 :         return 1;
      81                 :            :         }
      82                 :            : 
      83                 :            : #ifndef md4_block_data_order
      84                 :            : #ifdef X
      85                 :            : #undef X
      86                 :            : #endif
      87                 :          9 : void md4_block_data_order (MD4_CTX *c, const void *data_, size_t num)
      88                 :            :         {
      89                 :          9 :         const unsigned char *data=data_;
      90                 :            :         register unsigned MD32_REG_T A,B,C,D,l;
      91                 :            : #ifndef MD32_XARRAY
      92                 :            :         /* See comment in crypto/sha/sha_locl.h for details. */
      93                 :            :         unsigned MD32_REG_T     XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
      94                 :            :                                 XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15;
      95                 :            : # define X(i)   XX##i
      96                 :            : #else
      97                 :            :         MD4_LONG XX[MD4_LBLOCK];
      98                 :            : # define X(i)   XX[i]
      99                 :            : #endif
     100                 :            : 
     101                 :          9 :         A=c->A;
     102                 :          9 :         B=c->B;
     103                 :          9 :         C=c->C;
     104                 :          9 :         D=c->D;
     105                 :            : 
     106         [ +  + ]:         18 :         for (;num--;)
     107                 :            :                 {
     108                 :          9 :         (void)HOST_c2l(data,l); X( 0)=l;
     109                 :          9 :         (void)HOST_c2l(data,l); X( 1)=l;
     110                 :            :         /* Round 0 */
     111                 :          9 :         R0(A,B,C,D,X( 0), 3,0); (void)HOST_c2l(data,l); X( 2)=l;
     112                 :          9 :         R0(D,A,B,C,X( 1), 7,0); (void)HOST_c2l(data,l); X( 3)=l;
     113                 :          9 :         R0(C,D,A,B,X( 2),11,0); (void)HOST_c2l(data,l); X( 4)=l;
     114                 :          9 :         R0(B,C,D,A,X( 3),19,0); (void)HOST_c2l(data,l); X( 5)=l;
     115                 :          9 :         R0(A,B,C,D,X( 4), 3,0); (void)HOST_c2l(data,l); X( 6)=l;
     116                 :          9 :         R0(D,A,B,C,X( 5), 7,0); (void)HOST_c2l(data,l); X( 7)=l;
     117                 :          9 :         R0(C,D,A,B,X( 6),11,0); (void)HOST_c2l(data,l); X( 8)=l;
     118                 :          9 :         R0(B,C,D,A,X( 7),19,0); (void)HOST_c2l(data,l); X( 9)=l;
     119                 :          9 :         R0(A,B,C,D,X( 8), 3,0); (void)HOST_c2l(data,l); X(10)=l;
     120                 :          9 :         R0(D,A,B,C,X( 9), 7,0); (void)HOST_c2l(data,l); X(11)=l;
     121                 :          9 :         R0(C,D,A,B,X(10),11,0); (void)HOST_c2l(data,l); X(12)=l;
     122                 :          9 :         R0(B,C,D,A,X(11),19,0); (void)HOST_c2l(data,l); X(13)=l;
     123                 :          9 :         R0(A,B,C,D,X(12), 3,0); (void)HOST_c2l(data,l); X(14)=l;
     124                 :          9 :         R0(D,A,B,C,X(13), 7,0); (void)HOST_c2l(data,l); X(15)=l;
     125                 :          9 :         R0(C,D,A,B,X(14),11,0);
     126                 :          9 :         R0(B,C,D,A,X(15),19,0);
     127                 :            :         /* Round 1 */
     128                 :          9 :         R1(A,B,C,D,X( 0), 3,0x5A827999L);
     129                 :          9 :         R1(D,A,B,C,X( 4), 5,0x5A827999L);
     130                 :          9 :         R1(C,D,A,B,X( 8), 9,0x5A827999L);
     131                 :          9 :         R1(B,C,D,A,X(12),13,0x5A827999L);
     132                 :          9 :         R1(A,B,C,D,X( 1), 3,0x5A827999L);
     133                 :          9 :         R1(D,A,B,C,X( 5), 5,0x5A827999L);
     134                 :          9 :         R1(C,D,A,B,X( 9), 9,0x5A827999L);
     135                 :          9 :         R1(B,C,D,A,X(13),13,0x5A827999L);
     136                 :          9 :         R1(A,B,C,D,X( 2), 3,0x5A827999L);
     137                 :          9 :         R1(D,A,B,C,X( 6), 5,0x5A827999L);
     138                 :          9 :         R1(C,D,A,B,X(10), 9,0x5A827999L);
     139                 :          9 :         R1(B,C,D,A,X(14),13,0x5A827999L);
     140                 :          9 :         R1(A,B,C,D,X( 3), 3,0x5A827999L);
     141                 :          9 :         R1(D,A,B,C,X( 7), 5,0x5A827999L);
     142                 :          9 :         R1(C,D,A,B,X(11), 9,0x5A827999L);
     143                 :          9 :         R1(B,C,D,A,X(15),13,0x5A827999L);
     144                 :            :         /* Round 2 */
     145                 :          9 :         R2(A,B,C,D,X( 0), 3,0x6ED9EBA1L);
     146                 :          9 :         R2(D,A,B,C,X( 8), 9,0x6ED9EBA1L);
     147                 :          9 :         R2(C,D,A,B,X( 4),11,0x6ED9EBA1L);
     148                 :          9 :         R2(B,C,D,A,X(12),15,0x6ED9EBA1L);
     149                 :          9 :         R2(A,B,C,D,X( 2), 3,0x6ED9EBA1L);
     150                 :          9 :         R2(D,A,B,C,X(10), 9,0x6ED9EBA1L);
     151                 :          9 :         R2(C,D,A,B,X( 6),11,0x6ED9EBA1L);
     152                 :          9 :         R2(B,C,D,A,X(14),15,0x6ED9EBA1L);
     153                 :          9 :         R2(A,B,C,D,X( 1), 3,0x6ED9EBA1L);
     154                 :          9 :         R2(D,A,B,C,X( 9), 9,0x6ED9EBA1L);
     155                 :          9 :         R2(C,D,A,B,X( 5),11,0x6ED9EBA1L);
     156                 :          9 :         R2(B,C,D,A,X(13),15,0x6ED9EBA1L);
     157                 :          9 :         R2(A,B,C,D,X( 3), 3,0x6ED9EBA1L);
     158                 :          9 :         R2(D,A,B,C,X(11), 9,0x6ED9EBA1L);
     159                 :          9 :         R2(C,D,A,B,X( 7),11,0x6ED9EBA1L);
     160                 :          9 :         R2(B,C,D,A,X(15),15,0x6ED9EBA1L);
     161                 :            : 
     162                 :          9 :         A = c->A += A;
     163                 :          9 :         B = c->B += B;
     164                 :          9 :         C = c->C += C;
     165                 :          9 :         D = c->D += D;
     166                 :            :                 }
     167                 :          9 :         }
     168                 :            : #endif

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