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  1. /* Domain Cached Credentials 2 (MSCash2) example 
  2.  * written by S3nf <thes3nf at googlemail.com> in 2010
  3.  * a slow but working implementation
  4.  *
  5.  * Generating Domain Cached Credentials for modern Windows operating systems, supporting:
  6.  *     - Windows Vista
  7.  *     - Windows 7
  8.  *     - Windows Server 2008
  9.  *
  10.  * This software is based on:
  11.  *     - the MSCASH patch for john written by Alain Espinosa <alainesp at gmail.com> in 2007
  12.  *     - RFC 1320 - The MD4 Message-Digest Algorithm
  13.  *     - RFC 2104 - HMAC: Keyed-Hashing for Message Authentication
  14.  *     - RFC 3174 - US Secure Hash Algorithm 1 (SHA1)
  15.  *     - the HMAC-SHA1 implementation of the PolarSSL open source cryptagraphic library (http://p...content-available-to-author-only...l.org/) 
  16.  *
  17.  * This software was written by S3nf in 2010. No copyright is claimed, and the software is hereby placed in
  18.  * the public domain. In case this attempt to disclaim copyright and place the software in the public domain
  19.  * is deemed null and void, then the software is Copyright (c) 2010 S3nf and it is hereby released to the
  20.  * general public under the following terms:
  21.  *
  22.  * Redistribution and use in source and binary forms, with or without modification, are permitted.
  23.  *
  24.  */
  25.  
  26. #include <stdio.h>
  27. #include <stdlib.h>
  28. #include <string.h>
  29.  
  30. #define ITERATIONS                  10240
  31.  
  32. #define INIT_MD4_A                  0x67452301
  33. #define INIT_MD4_B                  0xefcdab89
  34. #define INIT_MD4_C                  0x98badcfe
  35. #define INIT_MD4_D                  0x10325476
  36.  
  37. #define SQRT_2                      0x5a827999
  38. #define SQRT_3                      0x6ed9eba1
  39.  
  40. #define SHA1_DIGEST_LENGTH          20
  41.  
  42. #define INIT_SHA1_A                 0x67452301
  43. #define INIT_SHA1_B                 0xEFCDAB89
  44. #define INIT_SHA1_C                 0x98BADCFE
  45. #define INIT_SHA1_D                 0x10325476
  46. #define INIT_SHA1_E                 0xC3D2E1F0
  47.  
  48. #ifndef GET_WORD_32_BE
  49. #define GET_WORD_32_BE(n,b,i)                           \
  50. {                                                       \
  51.     (n) = ( (unsigned long) (b)[(i)    ] << 24 )        \
  52.         | ( (unsigned long) (b)[(i) + 1] << 16 )        \
  53.         | ( (unsigned long) (b)[(i) + 2] <<  8 )        \
  54.         | ( (unsigned long) (b)[(i) + 3]       );       \
  55. }
  56. #endif
  57.  
  58. #ifndef PUT_WORD_32_BE
  59. #define PUT_WORD_32_BE(n,b,i)                           \
  60. {                                                       \
  61.     (b)[(i)    ] = (unsigned char) ( (n) >> 24 );       \
  62.     (b)[(i) + 1] = (unsigned char) ( (n) >> 16 );       \
  63.     (b)[(i) + 2] = (unsigned char) ( (n) >>  8 );       \
  64.     (b)[(i) + 3] = (unsigned char) ( (n)       );       \
  65. }
  66. #endif
  67.  
  68. #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
  69.  
  70. #define R(t)                                            \
  71. (                                                       \
  72.     temp = W[(t -  3) & 0x0F] ^ W[(t - 8) & 0x0F] ^     \
  73.            W[(t - 14) & 0x0F] ^ W[ t      & 0x0F],      \
  74.     ( W[t & 0x0F] = S(temp,1) )                         \
  75. )
  76.  
  77. #define P(a,b,c,d,e,x)                                  \
  78. {                                                       \
  79.     e += S(a,5) + F(b,c,d) + K + x; b = S(b,30);        \
  80. }
  81.  
  82.  
  83. /*
  84.  * byte2hexstring
  85.  * convert byte array to hex string
  86.  */
  87. unsigned char *byte2hexstring(unsigned char * byte, unsigned int len) {
  88.     unsigned int i;
  89.     unsigned char *hexstring;
  90.  
  91.     hexstring = malloc(len * 2 + 1);
  92.     bzero(hexstring, 2 * len + 1);
  93.  
  94.     for (i = 0; i < len; i++)
  95.         sprintf(&hexstring[2 * i], "%02x", byte[i]);
  96.  
  97.     return hexstring;
  98. }
  99.  
  100.  
  101. /*
  102.  * hmac_sha1
  103.  * based on RFC 2104, RFC 3174 and the HMAC-SHA1 implementation of the PolarSSL 
  104.  * open source cryptographic library (http://w...content-available-to-author-only...l.org)
  105.  */
  106. static void hmac_sha1(const unsigned char *key, unsigned int keylen, const unsigned char *input, unsigned int inputlen, unsigned char *output)
  107. {
  108.     unsigned int i, temp, W[16];
  109.     unsigned int A, B, C, D, E, state[5];
  110.     unsigned char buf[64];
  111.     unsigned char ipad[64];
  112.     unsigned char opad[64];
  113.  
  114.     memset(ipad, 0x36, 64);
  115.     memset(opad, 0x5C, 64);
  116.     memset(buf, 0, 64);
  117.  
  118.     // step 1: append zeros to the end of K to create a B Byte string
  119.     memcpy(buf, input, inputlen);
  120.     buf[inputlen] = 0x80;
  121.     PUT_WORD_32_BE((64 + inputlen) << 3, buf, 60);
  122.  
  123.     // step 2: XOR (bitwise exclusive-OR) the B byte string computed in step 1 with ipad
  124.     // step 5: XOR (bitwise exclusive-OR) the B byte string computed in step 1 with opad    
  125.     for(i = 0; i < keylen; i++)
  126.     {
  127.         ipad[i] = ipad[i] ^ key[i];
  128.         opad[i] = opad[i] ^ key[i];
  129.     }
  130.  
  131.     // step 3: append the stream of data 'text' to the B byte sting resulting from step 2
  132.     // first part of stream (64 bytes) is ipad, second part of stream (64 bytes) is buf
  133.  
  134.     // step 4: apply H to the stream (ipad & buf) generated in step 3
  135.     GET_WORD_32_BE(W[ 0], ipad,  0);
  136.     GET_WORD_32_BE(W[ 1], ipad,  4);
  137.     GET_WORD_32_BE(W[ 2], ipad,  8);
  138.     GET_WORD_32_BE(W[ 3], ipad, 12);
  139.     GET_WORD_32_BE(W[ 4], ipad, 16);
  140.     GET_WORD_32_BE(W[ 5], ipad, 20);
  141.     GET_WORD_32_BE(W[ 6], ipad, 24);
  142.     GET_WORD_32_BE(W[ 7], ipad, 28);
  143.     GET_WORD_32_BE(W[ 8], ipad, 32);
  144.     GET_WORD_32_BE(W[ 9], ipad, 36);
  145.     GET_WORD_32_BE(W[10], ipad, 40);
  146.     GET_WORD_32_BE(W[11], ipad, 44);
  147.     GET_WORD_32_BE(W[12], ipad, 48);
  148.     GET_WORD_32_BE(W[13], ipad, 52);
  149.     GET_WORD_32_BE(W[14], ipad, 56);
  150.     GET_WORD_32_BE(W[15], ipad, 60);
  151.  
  152.     A = INIT_SHA1_A;
  153.     B = INIT_SHA1_B;
  154.     C = INIT_SHA1_C;
  155.     D = INIT_SHA1_D;
  156.     E = INIT_SHA1_E;
  157.  
  158. #define F(x,y,z) (z ^ (x & (y ^ z)))
  159. #define K 0x5A827999
  160.  
  161.     P(A, B, C, D, E, W[0] );
  162.     P(E, A, B, C, D, W[1] );
  163.     P(D, E, A, B, C, W[2] );
  164.     P(C, D, E, A, B, W[3] );
  165.     P(B, C, D, E, A, W[4] );
  166.     P(A, B, C, D, E, W[5] );
  167.     P(E, A, B, C, D, W[6] );
  168.     P(D, E, A, B, C, W[7] );
  169.     P(C, D, E, A, B, W[8] );
  170.     P(B, C, D, E, A, W[9] );
  171.     P(A, B, C, D, E, W[10]);
  172.     P(E, A, B, C, D, W[11]);
  173.     P(D, E, A, B, C, W[12]);
  174.     P(C, D, E, A, B, W[13]);
  175.     P(B, C, D, E, A, W[14]);
  176.     P(A, B, C, D, E, W[15]);
  177.     P(E, A, B, C, D, R(16));
  178.     P(D, E, A, B, C, R(17));
  179.     P(C, D, E, A, B, R(18));
  180.     P(B, C, D, E, A, R(19));
  181.  
  182. #undef K
  183. #undef F
  184.  
  185. #define F(x,y,z) (x ^ y ^ z)
  186. #define K 0x6ED9EBA1
  187.  
  188.     P(A, B, C, D, E, R(20));
  189.     P(E, A, B, C, D, R(21));
  190.     P(D, E, A, B, C, R(22));
  191.     P(C, D, E, A, B, R(23));
  192.     P(B, C, D, E, A, R(24));
  193.     P(A, B, C, D, E, R(25));
  194.     P(E, A, B, C, D, R(26));
  195.     P(D, E, A, B, C, R(27));
  196.     P(C, D, E, A, B, R(28));
  197.     P(B, C, D, E, A, R(29));
  198.     P(A, B, C, D, E, R(30));
  199.     P(E, A, B, C, D, R(31));
  200.     P(D, E, A, B, C, R(32));
  201.     P(C, D, E, A, B, R(33));
  202.     P(B, C, D, E, A, R(34));
  203.     P(A, B, C, D, E, R(35));
  204.     P(E, A, B, C, D, R(36));
  205.     P(D, E, A, B, C, R(37));
  206.     P(C, D, E, A, B, R(38));
  207.     P(B, C, D, E, A, R(39));
  208.  
  209. #undef K
  210. #undef F
  211.  
  212. #define F(x,y,z) ((x & y) | (z & (x | y)))
  213. #define K 0x8F1BBCDC
  214.  
  215.     P(A, B, C, D, E, R(40));
  216.     P(E, A, B, C, D, R(41));
  217.     P(D, E, A, B, C, R(42));
  218.     P(C, D, E, A, B, R(43));
  219.     P(B, C, D, E, A, R(44));
  220.     P(A, B, C, D, E, R(45));
  221.     P(E, A, B, C, D, R(46));
  222.     P(D, E, A, B, C, R(47));
  223.     P(C, D, E, A, B, R(48));
  224.     P(B, C, D, E, A, R(49));
  225.     P(A, B, C, D, E, R(50));
  226.     P(E, A, B, C, D, R(51));
  227.     P(D, E, A, B, C, R(52));
  228.     P(C, D, E, A, B, R(53));
  229.     P(B, C, D, E, A, R(54));
  230.     P(A, B, C, D, E, R(55));
  231.     P(E, A, B, C, D, R(56));
  232.     P(D, E, A, B, C, R(57));
  233.     P(C, D, E, A, B, R(58));
  234.     P(B, C, D, E, A, R(59));
  235.  
  236. #undef K
  237. #undef F
  238.  
  239. #define F(x,y,z) (x ^ y ^ z)
  240. #define K 0xCA62C1D6
  241.  
  242.     P(A, B, C, D, E, R(60));
  243.     P(E, A, B, C, D, R(61));
  244.     P(D, E, A, B, C, R(62));
  245.     P(C, D, E, A, B, R(63));
  246.     P(B, C, D, E, A, R(64));
  247.     P(A, B, C, D, E, R(65));
  248.     P(E, A, B, C, D, R(66));
  249.     P(D, E, A, B, C, R(67));
  250.     P(C, D, E, A, B, R(68));
  251.     P(B, C, D, E, A, R(69));
  252.     P(A, B, C, D, E, R(70));
  253.     P(E, A, B, C, D, R(71));
  254.     P(D, E, A, B, C, R(72));
  255.     P(C, D, E, A, B, R(73));
  256.     P(B, C, D, E, A, R(74));
  257.     P(A, B, C, D, E, R(75));
  258.     P(E, A, B, C, D, R(76));
  259.     P(D, E, A, B, C, R(77));
  260.     P(C, D, E, A, B, R(78));
  261.     P(B, C, D, E, A, R(79));
  262.  
  263. #undef K
  264. #undef F
  265.  
  266.     A += INIT_SHA1_A;
  267.     B += INIT_SHA1_B;
  268.     C += INIT_SHA1_C;
  269.     D += INIT_SHA1_D;
  270.     E += INIT_SHA1_E;
  271.  
  272.     state[0] = A;
  273.     state[1] = B;
  274.     state[2] = C;
  275.     state[3] = D;
  276.     state[4] = E;
  277.  
  278.     // process buf (2nd part of stream)
  279.     GET_WORD_32_BE(W[ 0], buf,  0);
  280.     GET_WORD_32_BE(W[ 1], buf,  4);
  281.     GET_WORD_32_BE(W[ 2], buf,  8);
  282.     GET_WORD_32_BE(W[ 3], buf, 12);
  283.     GET_WORD_32_BE(W[ 4], buf, 16);
  284.     GET_WORD_32_BE(W[ 5], buf, 20);
  285.     GET_WORD_32_BE(W[ 6], buf, 24);
  286.     GET_WORD_32_BE(W[ 7], buf, 28);
  287.     GET_WORD_32_BE(W[ 8], buf, 32);
  288.     GET_WORD_32_BE(W[ 9], buf, 36);
  289.     GET_WORD_32_BE(W[10], buf, 40);
  290.     GET_WORD_32_BE(W[11], buf, 44);
  291.     GET_WORD_32_BE(W[12], buf, 48);
  292.     GET_WORD_32_BE(W[13], buf, 52);
  293.     GET_WORD_32_BE(W[14], buf, 56);
  294.     GET_WORD_32_BE(W[15], buf, 60);
  295.  
  296. #define F(x,y,z) (z ^ (x & (y ^ z)))
  297. #define K 0x5A827999
  298.  
  299.     P(A, B, C, D, E, W[0] );
  300.     P(E, A, B, C, D, W[1] );
  301.     P(D, E, A, B, C, W[2] );
  302.     P(C, D, E, A, B, W[3] );
  303.     P(B, C, D, E, A, W[4] );
  304.     P(A, B, C, D, E, W[5] );
  305.     P(E, A, B, C, D, W[6] );
  306.     P(D, E, A, B, C, W[7] );
  307.     P(C, D, E, A, B, W[8] );
  308.     P(B, C, D, E, A, W[9] );
  309.     P(A, B, C, D, E, W[10]);
  310.     P(E, A, B, C, D, W[11]);
  311.     P(D, E, A, B, C, W[12]);
  312.     P(C, D, E, A, B, W[13]);
  313.     P(B, C, D, E, A, W[14]);
  314.     P(A, B, C, D, E, W[15]);
  315.     P(E, A, B, C, D, R(16));
  316.     P(D, E, A, B, C, R(17));
  317.     P(C, D, E, A, B, R(18));
  318.     P(B, C, D, E, A, R(19));
  319.  
  320. #undef K
  321. #undef F
  322.  
  323. #define F(x,y,z) (x ^ y ^ z)
  324. #define K 0x6ED9EBA1
  325.  
  326.     P(A, B, C, D, E, R(20));
  327.     P(E, A, B, C, D, R(21));
  328.     P(D, E, A, B, C, R(22));
  329.     P(C, D, E, A, B, R(23));
  330.     P(B, C, D, E, A, R(24));
  331.     P(A, B, C, D, E, R(25));
  332.     P(E, A, B, C, D, R(26));
  333.     P(D, E, A, B, C, R(27));
  334.     P(C, D, E, A, B, R(28));
  335.     P(B, C, D, E, A, R(29));
  336.     P(A, B, C, D, E, R(30));
  337.     P(E, A, B, C, D, R(31));
  338.     P(D, E, A, B, C, R(32));
  339.     P(C, D, E, A, B, R(33));
  340.     P(B, C, D, E, A, R(34));
  341.     P(A, B, C, D, E, R(35));
  342.     P(E, A, B, C, D, R(36));
  343.     P(D, E, A, B, C, R(37));
  344.     P(C, D, E, A, B, R(38));
  345.     P(B, C, D, E, A, R(39));
  346.  
  347. #undef K
  348. #undef F
  349.  
  350. #define F(x,y,z) ((x & y) | (z & (x | y)))
  351. #define K 0x8F1BBCDC
  352.  
  353.     P(A, B, C, D, E, R(40));
  354.     P(E, A, B, C, D, R(41));
  355.     P(D, E, A, B, C, R(42));
  356.     P(C, D, E, A, B, R(43));
  357.     P(B, C, D, E, A, R(44));
  358.     P(A, B, C, D, E, R(45));
  359.     P(E, A, B, C, D, R(46));
  360.     P(D, E, A, B, C, R(47));
  361.     P(C, D, E, A, B, R(48));
  362.     P(B, C, D, E, A, R(49));
  363.     P(A, B, C, D, E, R(50));
  364.     P(E, A, B, C, D, R(51));
  365.     P(D, E, A, B, C, R(52));
  366.     P(C, D, E, A, B, R(53));
  367.     P(B, C, D, E, A, R(54));
  368.     P(A, B, C, D, E, R(55));
  369.     P(E, A, B, C, D, R(56));
  370.     P(D, E, A, B, C, R(57));
  371.     P(C, D, E, A, B, R(58));
  372.     P(B, C, D, E, A, R(59));
  373.  
  374. #undef K
  375. #undef F
  376.  
  377. #define F(x,y,z) (x ^ y ^ z)
  378. #define K 0xCA62C1D6
  379.  
  380.     P(A, B, C, D, E, R(60));
  381.     P(E, A, B, C, D, R(61));
  382.     P(D, E, A, B, C, R(62));
  383.     P(C, D, E, A, B, R(63));
  384.     P(B, C, D, E, A, R(64));
  385.     P(A, B, C, D, E, R(65));
  386.     P(E, A, B, C, D, R(66));
  387.     P(D, E, A, B, C, R(67));
  388.     P(C, D, E, A, B, R(68));
  389.     P(B, C, D, E, A, R(69));
  390.     P(A, B, C, D, E, R(70));
  391.     P(E, A, B, C, D, R(71));
  392.     P(D, E, A, B, C, R(72));
  393.     P(C, D, E, A, B, R(73));
  394.     P(B, C, D, E, A, R(74));
  395.     P(A, B, C, D, E, R(75));
  396.     P(E, A, B, C, D, R(76));
  397.     P(D, E, A, B, C, R(77));
  398.     P(C, D, E, A, B, R(78));
  399.     P(B, C, D, E, A, R(79));
  400.  
  401. #undef K
  402. #undef F
  403.  
  404.     A += state[0];
  405.     B += state[1];
  406.     C += state[2];
  407.     D += state[3];
  408.     E += state[4];
  409.  
  410.     PUT_WORD_32_BE(A, buf,  0);
  411.     PUT_WORD_32_BE(B, buf,  4);
  412.     PUT_WORD_32_BE(C, buf,  8);
  413.     PUT_WORD_32_BE(D, buf, 12);
  414.     PUT_WORD_32_BE(E, buf, 16);
  415.  
  416.     buf[20] = 0x80;
  417.     PUT_WORD_32_BE(0x2A0, buf, 60);
  418.  
  419.     // step 6: append the stream of data 'text' to the B byte sting resulting from step 2
  420.     // first part of stream (64 bytes) is opad, second part of stream (64 bytes) is the H result from step 4
  421.  
  422.     // step 7: apply H to the stream (opad & buf) generated in step 6 and output the result
  423.     GET_WORD_32_BE(W[ 0], opad,  0);
  424.     GET_WORD_32_BE(W[ 1], opad,  4);
  425.     GET_WORD_32_BE(W[ 2], opad,  8);
  426.     GET_WORD_32_BE(W[ 3], opad, 12);
  427.     GET_WORD_32_BE(W[ 4], opad, 16);
  428.     GET_WORD_32_BE(W[ 5], opad, 20);
  429.     GET_WORD_32_BE(W[ 6], opad, 24);
  430.     GET_WORD_32_BE(W[ 7], opad, 28);
  431.     GET_WORD_32_BE(W[ 8], opad, 32);
  432.     GET_WORD_32_BE(W[ 9], opad, 36);
  433.     GET_WORD_32_BE(W[10], opad, 40);
  434.     GET_WORD_32_BE(W[11], opad, 44);
  435.     GET_WORD_32_BE(W[12], opad, 48);
  436.     GET_WORD_32_BE(W[13], opad, 52);
  437.     GET_WORD_32_BE(W[14], opad, 56);
  438.     GET_WORD_32_BE(W[15], opad, 60);
  439.  
  440.     A = INIT_SHA1_A;
  441.     B = INIT_SHA1_B;
  442.     C = INIT_SHA1_C;
  443.     D = INIT_SHA1_D;
  444.     E = INIT_SHA1_E;
  445.  
  446. #define F(x,y,z) (z ^ (x & (y ^ z)))
  447. #define K 0x5A827999
  448.  
  449.     P(A, B, C, D, E, W[0] );
  450.     P(E, A, B, C, D, W[1] );
  451.     P(D, E, A, B, C, W[2] );
  452.     P(C, D, E, A, B, W[3] );
  453.     P(B, C, D, E, A, W[4] );
  454.     P(A, B, C, D, E, W[5] );
  455.     P(E, A, B, C, D, W[6] );
  456.     P(D, E, A, B, C, W[7] );
  457.     P(C, D, E, A, B, W[8] );
  458.     P(B, C, D, E, A, W[9] );
  459.     P(A, B, C, D, E, W[10]);
  460.     P(E, A, B, C, D, W[11]);
  461.     P(D, E, A, B, C, W[12]);
  462.     P(C, D, E, A, B, W[13]);
  463.     P(B, C, D, E, A, W[14]);
  464.     P(A, B, C, D, E, W[15]);
  465.     P(E, A, B, C, D, R(16));
  466.     P(D, E, A, B, C, R(17));
  467.     P(C, D, E, A, B, R(18));
  468.     P(B, C, D, E, A, R(19));
  469.  
  470. #undef K
  471. #undef F
  472.  
  473. #define F(x,y,z) (x ^ y ^ z)
  474. #define K 0x6ED9EBA1
  475.  
  476.     P(A, B, C, D, E, R(20));
  477.     P(E, A, B, C, D, R(21));
  478.     P(D, E, A, B, C, R(22));
  479.     P(C, D, E, A, B, R(23));
  480.     P(B, C, D, E, A, R(24));
  481.     P(A, B, C, D, E, R(25));
  482.     P(E, A, B, C, D, R(26));
  483.     P(D, E, A, B, C, R(27));
  484.     P(C, D, E, A, B, R(28));
  485.     P(B, C, D, E, A, R(29));
  486.     P(A, B, C, D, E, R(30));
  487.     P(E, A, B, C, D, R(31));
  488.     P(D, E, A, B, C, R(32));
  489.     P(C, D, E, A, B, R(33));
  490.     P(B, C, D, E, A, R(34));
  491.     P(A, B, C, D, E, R(35));
  492.     P(E, A, B, C, D, R(36));
  493.     P(D, E, A, B, C, R(37));
  494.     P(C, D, E, A, B, R(38));
  495.     P(B, C, D, E, A, R(39));
  496.  
  497. #undef K
  498. #undef F
  499.  
  500. #define F(x,y,z) ((x & y) | (z & (x | y)))
  501. #define K 0x8F1BBCDC
  502.  
  503.     P(A, B, C, D, E, R(40));
  504.     P(E, A, B, C, D, R(41));
  505.     P(D, E, A, B, C, R(42));
  506.     P(C, D, E, A, B, R(43));
  507.     P(B, C, D, E, A, R(44));
  508.     P(A, B, C, D, E, R(45));
  509.     P(E, A, B, C, D, R(46));
  510.     P(D, E, A, B, C, R(47));
  511.     P(C, D, E, A, B, R(48));
  512.     P(B, C, D, E, A, R(49));
  513.     P(A, B, C, D, E, R(50));
  514.     P(E, A, B, C, D, R(51));
  515.     P(D, E, A, B, C, R(52));
  516.     P(C, D, E, A, B, R(53));
  517.     P(B, C, D, E, A, R(54));
  518.     P(A, B, C, D, E, R(55));
  519.     P(E, A, B, C, D, R(56));
  520.     P(D, E, A, B, C, R(57));
  521.     P(C, D, E, A, B, R(58));
  522.     P(B, C, D, E, A, R(59));
  523.  
  524. #undef K
  525. #undef F
  526.  
  527. #define F(x,y,z) (x ^ y ^ z)
  528. #define K 0xCA62C1D6
  529.  
  530.     P(A, B, C, D, E, R(60));
  531.     P(E, A, B, C, D, R(61));
  532.     P(D, E, A, B, C, R(62));
  533.     P(C, D, E, A, B, R(63));
  534.     P(B, C, D, E, A, R(64));
  535.     P(A, B, C, D, E, R(65));
  536.     P(E, A, B, C, D, R(66));
  537.     P(D, E, A, B, C, R(67));
  538.     P(C, D, E, A, B, R(68));
  539.     P(B, C, D, E, A, R(69));
  540.     P(A, B, C, D, E, R(70));
  541.     P(E, A, B, C, D, R(71));
  542.     P(D, E, A, B, C, R(72));
  543.     P(C, D, E, A, B, R(73));
  544.     P(B, C, D, E, A, R(74));
  545.     P(A, B, C, D, E, R(75));
  546.     P(E, A, B, C, D, R(76));
  547.     P(D, E, A, B, C, R(77));
  548.     P(C, D, E, A, B, R(78));
  549.     P(B, C, D, E, A, R(79));
  550.  
  551. #undef K
  552. #undef F
  553.  
  554.     A += INIT_SHA1_A;
  555.     B += INIT_SHA1_B;
  556.     C += INIT_SHA1_C;
  557.     D += INIT_SHA1_D;
  558.     E += INIT_SHA1_E;
  559.  
  560.     // store state for 2nd part
  561.     state[0] = A;
  562.     state[1] = B;
  563.     state[2] = C;
  564.     state[3] = D;
  565.     state[4] = E;
  566.  
  567.     GET_WORD_32_BE(W[ 0], buf,  0);
  568.     GET_WORD_32_BE(W[ 1], buf,  4);
  569.     GET_WORD_32_BE(W[ 2], buf,  8);
  570.     GET_WORD_32_BE(W[ 3], buf, 12);
  571.     GET_WORD_32_BE(W[ 4], buf, 16);
  572.     GET_WORD_32_BE(W[ 5], buf, 20);
  573.     GET_WORD_32_BE(W[ 6], buf, 24);
  574.     GET_WORD_32_BE(W[ 7], buf, 28);
  575.     GET_WORD_32_BE(W[ 8], buf, 32);
  576.     GET_WORD_32_BE(W[ 9], buf, 36);
  577.     GET_WORD_32_BE(W[10], buf, 40);
  578.     GET_WORD_32_BE(W[11], buf, 44);
  579.     GET_WORD_32_BE(W[12], buf, 48);
  580.     GET_WORD_32_BE(W[13], buf, 52);
  581.     GET_WORD_32_BE(W[14], buf, 56);
  582.     GET_WORD_32_BE(W[15], buf, 60);
  583.  
  584. #define F(x,y,z) (z ^ (x & (y ^ z)))
  585. #define K 0x5A827999
  586.  
  587.     P(A, B, C, D, E, W[0] );
  588.     P(E, A, B, C, D, W[1] );
  589.     P(D, E, A, B, C, W[2] );
  590.     P(C, D, E, A, B, W[3] );
  591.     P(B, C, D, E, A, W[4] );
  592.     P(A, B, C, D, E, W[5] );
  593.     P(E, A, B, C, D, W[6] );
  594.     P(D, E, A, B, C, W[7] );
  595.     P(C, D, E, A, B, W[8] );
  596.     P(B, C, D, E, A, W[9] );
  597.     P(A, B, C, D, E, W[10]);
  598.     P(E, A, B, C, D, W[11]);
  599.     P(D, E, A, B, C, W[12]);
  600.     P(C, D, E, A, B, W[13]);
  601.     P(B, C, D, E, A, W[14]);
  602.     P(A, B, C, D, E, W[15]);
  603.     P(E, A, B, C, D, R(16));
  604.     P(D, E, A, B, C, R(17));
  605.     P(C, D, E, A, B, R(18));
  606.     P(B, C, D, E, A, R(19));
  607.  
  608. #undef K
  609. #undef F
  610.  
  611. #define F(x,y,z) (x ^ y ^ z)
  612. #define K 0x6ED9EBA1
  613.  
  614.     P(A, B, C, D, E, R(20));
  615.     P(E, A, B, C, D, R(21));
  616.     P(D, E, A, B, C, R(22));
  617.     P(C, D, E, A, B, R(23));
  618.     P(B, C, D, E, A, R(24));
  619.     P(A, B, C, D, E, R(25));
  620.     P(E, A, B, C, D, R(26));
  621.     P(D, E, A, B, C, R(27));
  622.     P(C, D, E, A, B, R(28));
  623.     P(B, C, D, E, A, R(29));
  624.     P(A, B, C, D, E, R(30));
  625.     P(E, A, B, C, D, R(31));
  626.     P(D, E, A, B, C, R(32));
  627.     P(C, D, E, A, B, R(33));
  628.     P(B, C, D, E, A, R(34));
  629.     P(A, B, C, D, E, R(35));
  630.     P(E, A, B, C, D, R(36));
  631.     P(D, E, A, B, C, R(37));
  632.     P(C, D, E, A, B, R(38));
  633.     P(B, C, D, E, A, R(39));
  634.  
  635. #undef K
  636. #undef F
  637.  
  638. #define F(x,y,z) ((x & y) | (z & (x | y)))
  639. #define K 0x8F1BBCDC
  640.  
  641.     P(A, B, C, D, E, R(40));
  642.     P(E, A, B, C, D, R(41));
  643.     P(D, E, A, B, C, R(42));
  644.     P(C, D, E, A, B, R(43));
  645.     P(B, C, D, E, A, R(44));
  646.     P(A, B, C, D, E, R(45));
  647.     P(E, A, B, C, D, R(46));
  648.     P(D, E, A, B, C, R(47));
  649.     P(C, D, E, A, B, R(48));
  650.     P(B, C, D, E, A, R(49));
  651.     P(A, B, C, D, E, R(50));
  652.     P(E, A, B, C, D, R(51));
  653.     P(D, E, A, B, C, R(52));
  654.     P(C, D, E, A, B, R(53));
  655.     P(B, C, D, E, A, R(54));
  656.     P(A, B, C, D, E, R(55));
  657.     P(E, A, B, C, D, R(56));
  658.     P(D, E, A, B, C, R(57));
  659.     P(C, D, E, A, B, R(58));
  660.     P(B, C, D, E, A, R(59));
  661.  
  662. #undef K
  663. #undef F
  664.  
  665. #define F(x,y,z) (x ^ y ^ z)
  666. #define K 0xCA62C1D6
  667.  
  668.     P(A, B, C, D, E, R(60));
  669.     P(E, A, B, C, D, R(61));
  670.     P(D, E, A, B, C, R(62));
  671.     P(C, D, E, A, B, R(63));
  672.     P(B, C, D, E, A, R(64));
  673.     P(A, B, C, D, E, R(65));
  674.     P(E, A, B, C, D, R(66));
  675.     P(D, E, A, B, C, R(67));
  676.     P(C, D, E, A, B, R(68));
  677.     P(B, C, D, E, A, R(69));
  678.     P(A, B, C, D, E, R(70));
  679.     P(E, A, B, C, D, R(71));
  680.     P(D, E, A, B, C, R(72));
  681.     P(C, D, E, A, B, R(73));
  682.     P(B, C, D, E, A, R(74));
  683.     P(A, B, C, D, E, R(75));
  684.     P(E, A, B, C, D, R(76));
  685.     P(D, E, A, B, C, R(77));
  686.     P(C, D, E, A, B, R(78));
  687.     P(B, C, D, E, A, R(79));
  688.  
  689. #undef K
  690. #undef F
  691.  
  692.     A += state[0];
  693.     B += state[1];
  694.     C += state[2];
  695.     D += state[3];
  696.     E += state[4];
  697.  
  698.     PUT_WORD_32_BE(A, output,  0);
  699.     PUT_WORD_32_BE(B, output,  4);
  700.     PUT_WORD_32_BE(C, output,  8);
  701.     PUT_WORD_32_BE(D, output, 12);
  702.     PUT_WORD_32_BE(E, output, 16);
  703. }
  704.  
  705.  
  706. /* PBKDF2
  707.  * stripped-down implementation
  708.  * based on the source code written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL Project 1999
  709.  */
  710. static void PBKDF2_DCC2(const unsigned char *pass, const unsigned char *salt, int saltlen, unsigned char *out)
  711. {
  712.     unsigned char temp[SHA1_DIGEST_LENGTH];
  713.     unsigned char buf[48];
  714.     unsigned int i;
  715.  
  716.     memset(buf, 0, 48);
  717.     memcpy(buf, salt, saltlen);
  718.     buf[saltlen + 3] = 0x01;
  719.  
  720.     hmac_sha1(pass, 16, buf, saltlen + 4, temp);
  721.  
  722.     memcpy(out, temp, 16);
  723.  
  724.     for (i = 1; i < ITERATIONS; i++)
  725.     {
  726.         hmac_sha1(pass, 16, temp, SHA1_DIGEST_LENGTH, temp);
  727.  
  728.         out[ 0] ^= temp[0];
  729.         out[ 1] ^= temp[1];
  730.         out[ 2] ^= temp[2];
  731.         out[ 3] ^= temp[3];
  732.         out[ 4] ^= temp[4];
  733.         out[ 5] ^= temp[5];
  734.         out[ 6] ^= temp[6];
  735.         out[ 7] ^= temp[7];
  736.         out[ 8] ^= temp[8];
  737.         out[ 9] ^= temp[9];
  738.         out[10] ^= temp[10];
  739.         out[11] ^= temp[11];
  740.         out[12] ^= temp[12];
  741.         out[13] ^= temp[13];
  742.         out[14] ^= temp[14];
  743.         out[15] ^= temp[15];
  744. //      out[16] ^= temp[16]; - was a bug?
  745.     }
  746. }
  747.  
  748.  
  749.  
  750. // MD4 compression function
  751. void md4_crypt(unsigned int *buffer, unsigned int *hash)
  752. {
  753.     unsigned int a;
  754.     unsigned int b;
  755.     unsigned int c;
  756.     unsigned int d;
  757.  
  758.     // round 1
  759.     a = 0xFFFFFFFF  +  buffer[0]; a = (a << 3 ) | (a >> 29);
  760.     d = INIT_MD4_D + (INIT_MD4_C ^ (a & 0x77777777)) + buffer[1]; d = (d << 7 ) | (d >> 25);
  761.     c = INIT_MD4_C + (INIT_MD4_B ^ (d & (a ^ INIT_MD4_B))) + buffer[2]; c = (c << 11) | (c >> 21);
  762.     b = INIT_MD4_B + (a ^ (c & (d ^ a))) + buffer[3]; b = (b << 19) | (b >> 13); 
  763.  
  764.     a += (d ^ (b & (c ^ d)))  +  buffer[4];  a = (a << 3 ) | (a >> 29);
  765.     d += (c ^ (a & (b ^ c)))  +  buffer[5];  d = (d << 7 ) | (d >> 25);
  766.     c += (b ^ (d & (a ^ b)))  +  buffer[6];  c = (c << 11) | (c >> 21);
  767.     b += (a ^ (c & (d ^ a)))  +  buffer[7];  b = (b << 19) | (b >> 13);
  768.  
  769.     a += (d ^ (b & (c ^ d)))  + buffer[8] ;  a = (a << 3 ) | (a >> 29);
  770.     d += (c ^ (a & (b ^ c)))  + buffer[9] ;  d = (d << 7 ) | (d >> 25);
  771.     c += (b ^ (d & (a ^ b)))  + buffer[10];  c = (c << 11) | (c >> 21);
  772.     b += (a ^ (c & (d ^ a)))  + buffer[11];  b = (b << 19) | (b >> 13);
  773.  
  774.     a += (d ^ (b & (c ^ d)))  + buffer[12]; a = (a << 3 ) | (a >> 29);
  775.     d += (c ^ (a & (b ^ c)))  + buffer[13]; d = (d << 7 ) | (d >> 25);
  776.     c += (b ^ (d & (a ^ b)))  + buffer[14]; c = (c << 11) | (c >> 21);
  777.     b += (a ^ (c & (d ^ a)))  + buffer[15]; b = (b << 19) | (b >> 13);
  778.  
  779.     // round 2
  780.     a += ((b & (c | d)) | (c & d)) + buffer[0]  + SQRT_2; a = (a<<3 ) | (a>>29);
  781.     d += ((a & (b | c)) | (b & c)) + buffer[4]  + SQRT_2; d = (d<<5 ) | (d>>27);
  782.     c += ((d & (a | b)) | (a & b)) + buffer[8]  + SQRT_2; c = (c<<9 ) | (c>>23);
  783.     b += ((c & (d | a)) | (d & a)) + buffer[12] + SQRT_2; b = (b<<13) | (b>>19);
  784.  
  785.     a += ((b & (c | d)) | (c & d)) + buffer[1]  + SQRT_2; a = (a<<3 ) | (a>>29);
  786.     d += ((a & (b | c)) | (b & c)) + buffer[5]  + SQRT_2; d = (d<<5 ) | (d>>27);
  787.     c += ((d & (a | b)) | (a & b)) + buffer[9]  + SQRT_2; c = (c<<9 ) | (c>>23);
  788.     b += ((c & (d | a)) | (d & a)) + buffer[13] + SQRT_2; b = (b<<13) | (b>>19);
  789.  
  790.     a += ((b & (c | d)) | (c & d)) + buffer[2]  + SQRT_2; a = (a<<3 ) | (a>>29);
  791.     d += ((a & (b | c)) | (b & c)) + buffer[6]  + SQRT_2; d = (d<<5 ) | (d>>27);
  792.     c += ((d & (a | b)) | (a & b)) + buffer[10] + SQRT_2; c = (c<<9 ) | (c>>23);
  793.     b += ((c & (d | a)) | (d & a)) + buffer[14] + SQRT_2; b = (b<<13) | (b>>19);
  794.  
  795.     a += ((b & (c | d)) | (c & d)) + buffer[3]  + SQRT_2; a = (a<<3 ) | (a>>29);
  796.     d += ((a & (b | c)) | (b & c)) + buffer[7]  + SQRT_2; d = (d<<5 ) | (d>>27);
  797.     c += ((d & (a | b)) | (a & b)) + buffer[11] + SQRT_2; c = (c<<9 ) | (c>>23);
  798.     b += ((c & (d | a)) | (d & a)) + buffer[15] + SQRT_2; b = (b<<13) | (b>>19);         
  799.  
  800.     // round 3
  801.     a += (d ^ c ^ b) + buffer[0]  +  SQRT_3; a = (a << 3 ) | (a >> 29);
  802.     d += (c ^ b ^ a) + buffer[8]  +  SQRT_3; d = (d << 9 ) | (d >> 23);
  803.     c += (b ^ a ^ d) + buffer[4]  +  SQRT_3; c = (c << 11) | (c >> 21);
  804.     b += (a ^ d ^ c) + buffer[12] +  SQRT_3; b = (b << 15) | (b >> 17);
  805.  
  806.     a += (d ^ c ^ b) + buffer[2]  +  SQRT_3; a = (a << 3 ) | (a >> 29);
  807.     d += (c ^ b ^ a) + buffer[10] +  SQRT_3; d = (d << 9 ) | (d >> 23);
  808.     c += (b ^ a ^ d) + buffer[6]  +  SQRT_3; c = (c << 11) | (c >> 21);
  809.     b += (a ^ d ^ c) + buffer[14] +  SQRT_3; b = (b << 15) | (b >> 17);
  810.  
  811.     a += (d ^ c ^ b) + buffer[1]  +  SQRT_3; a = (a << 3 ) | (a >> 29);
  812.     d += (c ^ b ^ a) + buffer[9]  +  SQRT_3; d = (d << 9 ) | (d >> 23);
  813.     c += (b ^ a ^ d) + buffer[5]  +  SQRT_3; c = (c << 11) | (c >> 21);
  814.     b += (a ^ d ^ c) + buffer[13] +  SQRT_3; b = (b << 15) | (b >> 17);
  815.  
  816.     a += (d ^ c ^ b) + buffer[3]  +  SQRT_3; a = (a << 3 ) | (a >> 29);
  817.  
  818.     d += (c ^ b ^ a) + buffer[11] +  SQRT_3; d = (d << 9 ) | (d >> 23);
  819.     c += (b ^ a ^ d) + buffer[7]  +  SQRT_3; c = (c << 11) | (c >> 21);
  820.     b += (a ^ d ^ c) + buffer[15] +  SQRT_3; b = (b << 15) | (b >> 17);
  821.  
  822.     hash[0] = a + INIT_MD4_A;
  823.     hash[1] = b + INIT_MD4_B;
  824.     hash[2] = c + INIT_MD4_C;
  825.     hash[3] = d + INIT_MD4_D;
  826. }
  827.  
  828. // main
  829. int main(int argc, char *argv[])
  830. {
  831.     unsigned int i;
  832.     unsigned int buffer[16];
  833.     unsigned int nt_hash[16];
  834.     unsigned int dcc_hash[16];
  835.     unsigned int dcc2_hash[16];
  836.     unsigned char salt[44];
  837.     unsigned char username[] = "test";
  838.     unsigned char password[] = "password";
  839.     unsigned int username_len = strlen(username);
  840.     unsigned int password_len = strlen(password);
  841.  
  842.     memset(nt_hash, 0, 64);
  843.     memset(buffer, 0, 64);
  844.     memset(salt, 0, 44);
  845.  
  846.     // convert ASCII username to Unicode (WideChar)
  847.     for(i = 0; i < (username_len >> 1) + 1; i++)
  848.         ((unsigned int *)salt)[i] = username[2 * i] | (username[2 * i + 1] << 16);
  849.  
  850.     // convert ASCII password to Unicode
  851.  
  852.     for(i = 0; i < password_len >> 1; i++)  
  853.         buffer[i] = password[2 * i] | (password[2 * i + 1] << 16);
  854.  
  855.     // MD4 padding
  856.     if(password_len % 2 == 1)
  857.         buffer[i] = password[password_len - 1] | 0x800000;
  858.     else
  859.         buffer[i]=0x80;
  860.  
  861.     // put password length at end of buffer
  862.     buffer[14] = password_len << 4;
  863.  
  864.     // generate MD4 hash of the password (NT hash)
  865.     md4_crypt(buffer, nt_hash);
  866.  
  867.     // concatenate NT hash and the username (salt)
  868.     memcpy((unsigned char *)nt_hash + 16, salt, username_len << 1); 
  869.  
  870.     i = username_len + 8;
  871.  
  872.     // MD4 padding
  873.     if(username_len % 2 == 1)
  874.         nt_hash[i >> 1] = username[username_len - 1] | 0x800000;
  875.     else
  876.         nt_hash[i >> 1] = 0x80;
  877.  
  878.     // put length at end of buffer
  879.     nt_hash[14] = i << 4; 
  880.  
  881.     md4_crypt(nt_hash, dcc_hash);
  882.  
  883.  
  884.     // stripped-down PBKDF2 for DCC2
  885.     PBKDF2_DCC2((unsigned char*)dcc_hash, salt, username_len << 1, (unsigned char*)dcc2_hash);
  886.  
  887.     // the even slower OpenSSL PBKDF2 implementation (compile with -lssl)   
  888. //  PKCS5_PBKDF2_HMAC_SHA1((unsigned char*)dcc_hash, 16, salt, username_len << 1, ITERATIONS, 16, (unsigned char*)dcc2_hash);
  889.  
  890.     // user credentials and DCC and DCC2 hash values
  891.     printf("username           : %s\n", username);
  892.     printf("password           : %s\n", password);
  893.     printf("DCC  aka M$ Cache  : %s\n", byte2hexstring((unsigned char *)dcc_hash, 16));
  894.     printf("DCC2 aka M$ Cache 2: %s\n", byte2hexstring((unsigned char *)dcc2_hash, 16));
  895.  
  896.     return 0;
  897. }
Success #stdin #stdout 0.01s 5296KB
comments (?)
stdin 
/*  Berechnung des Hamming-Abstandes zwischen zwei 128-Bit Werten in 	*/
/*	einer Textdatei. 													*/
/*  Die Werte müssen auf einer separaten Zeile gespeichert sein			*/
/* 																		*/
/*	Erstellt: 17.5.2010													*/
/*  Autor: Thomas Scheffler												*/

#include <stdio.h>
#include <stdlib.h>

#define ARRAY_SIZE 32

unsigned Hamdist(unsigned x, unsigned y)
{
  unsigned dist = 0, val = x ^ y;
 
  // Count the number of set bits
  while(val)
  {
    ++dist; 
    val &= val - 1;
  }
 
  return dist;
}



int main (void)
{
	char hex;
	int i;
	int a[ARRAY_SIZE];
	int b[ARRAY_SIZE];
	int hamDist = 0;
	FILE* fp;
	
	//Arrays mit 0 initialisieren
	for (i = 0; i < ARRAY_SIZE; ++i)
	{
  		a[i] = 0;
  		b[i] = 0;
	}

	
	fp = fopen("hex.txt","r");
	if (fp == NULL) 
	{
		printf("Die Datei hex.txt wurde nicht gefunden!");
		exit(EXIT_FAILURE);
	}

	i=0;
	printf("1.Zeile einlesen.\n");

 	while((hex=fgetc(fp))!='\n' && hex != EOF)
    {
        a[i]=strtol(&hex,0,16);
		i++;
    }
	i=0;
	printf("2.Zeile einlesen.\n");

 	while((hex=fgetc(fp))!='\n' && hex != EOF)
    {
    	b[i]=strtol(&hex,0,16);
        i++;
    }
	fclose(fp);

	printf("Hamming-Abweichung pro Nibble:\n");
	for (i = 0; i < ARRAY_SIZE; ++i)
	{
		printf ("%i\t%i\t%i\n",a[i],b[i],Hamdist(a[i],b[i]));
		hamDist += Hamdist(a[i],b[i]);
	}
	printf ("\nHamming-Abweichung der Hash-Werte:%d\n",hamDist);
}
stdout 
username           : test
password           : password
DCC  aka M$ Cache  : 1f34a7dfade9ddaa26746086ecbe77bf
DCC2 aka M$ Cache 2: a86012faf7d88d1fc037a69764a92cac
https://ideone.com/4mK7vO
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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