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NTLMSigningTests.cs

NTLMSigningTests.cs 20 KB
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  1. /* Copyright (C) 2017-2019 Tal Aloni <tal.aloni.il@gmail.com>. All rights reserved.
    2. 

  2.  * 
    3. 

  3.  * You can redistribute this program and/or modify it under the terms of
    4. 

  4.  * the GNU Lesser Public License as published by the Free Software Foundation,
    5. 

  5.  * either version 3 of the License, or (at your option) any later version.
    6. 

  6.  */
    7. 

  7. using System;
    8. 

  8. using System.Collections.Generic;
    9. 

  9. using System.Security.Cryptography;
    10. 

  10. using Microsoft.VisualStudio.TestTools.UnitTesting;
    11. 

  11. using SMBLibrary.Authentication.NTLM;
    12. 

  12. using Utilities;
    13. 

  13. 

  14. namespace SMBLibrary.Tests
    15. 

  15. {
    16. 

  16.     [TestClass]
    17. 

  17.     public class NTLMSigningTests
    18. 

  18.     {
    19. 

  19.         [TestMethod]
    20. 

  20.         public void TestLMMIC()
    21. 

  21.         {
    22. 

  22.             string password = "Password";
    23. 

  23.             byte[] type1 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x97, 0x82, 0x08, 0xe2,
    24. 

  24.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    25. 

  25.                                         0x06, 0x01, 0xb1, 0x1d, 0x00, 0x00, 0x00, 0x0f};
    26. 

  26.             byte[] type2 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x06, 0x00,
    27. 

  27.                                         0x38, 0x00, 0x00, 0x00, 0x95, 0x00, 0x82, 0xa2, 0x28, 0x96, 0xe3, 0x6a, 0xd1, 0xb7, 0x74, 0xb8,
    28. 

  28.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0x3e, 0x00, 0x00, 0x00,
    29. 

  29.                                         0x05, 0x02, 0xce, 0x0e, 0x00, 0x00, 0x00, 0x0f, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x02, 0x00,
    30. 

  30.                                         0x06, 0x00, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x01, 0x00, 0x06, 0x00, 0x54, 0x00, 0x41, 0x00,
    31. 

  31.                                         0x4c, 0x00, 0x00, 0x00, 0x00, 0x00};
    32. 

  32.             byte[] type3 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x03, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00,
    33. 

  33.                                         0x7c, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0x94, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00,
    34. 

  34.                                         0x58, 0x00, 0x00, 0x00, 0x08, 0x00, 0x08, 0x00, 0x66, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00,
    35. 

  35.                                         0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, 0x95, 0x00, 0x80, 0xa2,
    36. 

  36.                                         0x06, 0x01, 0xb1, 0x1d, 0x00, 0x00, 0x00, 0x0f, 0x4e, 0x65, 0x54, 0xe6, 0xb3, 0xdc, 0xdc, 0x16,
    37. 

  37.                                         0xef, 0xc4, 0xd0, 0x03, 0x3b, 0x81, 0x61, 0x6f, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00,
    38. 

  38.                                         0x56, 0x00, 0x4d, 0x00, 0x37, 0x00, 0x55, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x54, 0x00,
    39. 

  39.                                         0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x37, 0x00, 0xc1, 0xd1, 0x06, 0x56,
    40. 

  40.                                         0xa3, 0xa9, 0x64, 0x14, 0x0e, 0x7f, 0x43, 0x19, 0x3f, 0x29, 0xf3, 0x72, 0xa3, 0xc1, 0xbe, 0x02,
    41. 

  41.                                         0xd0, 0x6f, 0xff, 0x20, 0xc1, 0xd1, 0x06, 0x56, 0xa3, 0xa9, 0x64, 0x14, 0x0e, 0x7f, 0x43, 0x19,
    42. 

  42.                                         0x3f, 0x29, 0xf3, 0x72, 0xa3, 0xc1, 0xbe, 0x02, 0xd0, 0x6f, 0xff, 0x20};
    43. 

  43. 

  44.             byte[] serverChallenge = new ChallengeMessage(type2).ServerChallenge;
    45. 

  45.             AuthenticateMessage authenticateMessage = new AuthenticateMessage(type3);
    46. 

  46.             byte[] sessionBaseKey = new MD4().GetByteHashFromBytes(NTLMCryptography.NTOWFv1(password));
    47. 

  47.             byte[] lmowf = NTLMCryptography.LMOWFv1(password);
    48. 

  48.             byte[] exportedSessionKey = GetExportedSessionKey(sessionBaseKey, authenticateMessage, serverChallenge, lmowf);
    49. 

  49. 

  50.             // https://msdn.microsoft.com/en-us/library/cc236695.aspx
    51. 

  51.             const int micFieldOffset = 72;
    52. 

  52.             ByteWriter.WriteBytes(type3, micFieldOffset, new byte[16]);
    53. 

  53.             byte[] temp = ByteUtils.Concatenate(ByteUtils.Concatenate(type1, type2), type3);
    54. 

  54.             byte[] mic = new HMACMD5(exportedSessionKey).ComputeHash(temp);
    55. 

  55.             byte[] expected = new byte[] { 0x4e, 0x65, 0x54, 0xe6, 0xb3, 0xdc, 0xdc, 0x16, 0xef, 0xc4, 0xd0, 0x03, 0x3b, 0x81, 0x61, 0x6f };
    56. 

  56. 

  57.             Assert.IsTrue(ByteUtils.AreByteArraysEqual(mic, expected));
    58. 

  58.         }
    59. 

  59. 

  60.         [TestMethod]
    61. 

  61.         public void TestNTLMv1MIC()
    62. 

  62.         {
    63. 

  63.             string password = "Password";
    64. 

  64.             byte[] type1 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x97, 0x82, 0x08, 0xe2,
    65. 

  65.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    66. 

  66.                                         0x0a, 0x00, 0x39, 0x38, 0x00, 0x00, 0x00, 0x0f};
    67. 

  67.             byte[] type2 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x06, 0x00,
    68. 

  68.                                         0x38, 0x00, 0x00, 0x00, 0x15, 0x02, 0x82, 0xa2, 0xe8, 0xbe, 0x2f, 0x5b, 0xc5, 0xe9, 0xf7, 0xa7,
    69. 

  69.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0x3e, 0x00, 0x00, 0x00,
    70. 

  70.                                         0x05, 0x02, 0xce, 0x0e, 0x00, 0x00, 0x00, 0x0f, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x02, 0x00,
    71. 

  71.                                         0x06, 0x00, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x01, 0x00, 0x06, 0x00, 0x54, 0x00, 0x41, 0x00,
    72. 

  72.                                         0x4c, 0x00, 0x00, 0x00, 0x00, 0x00};
    73. 

  73.             byte[] type3 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x03, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00,
    74. 

  74.                                         0x7c, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0x94, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00,
    75. 

  75.                                         0x58, 0x00, 0x00, 0x00, 0x08, 0x00, 0x08, 0x00, 0x66, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00,
    76. 

  76.                                         0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, 0x15, 0x02, 0x80, 0xa2,
    77. 

  77.                                         0x0a, 0x00, 0x39, 0x38, 0x00, 0x00, 0x00, 0x0f, 0xae, 0xa7, 0xba, 0x44, 0x4e, 0x93, 0xa7, 0xdb,
    78. 

  78.                                         0xb3, 0x0c, 0x85, 0x49, 0xc2, 0x2b, 0xba, 0x9a, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00,
    79. 

  79.                                         0x56, 0x00, 0x4d, 0x00, 0x36, 0x00, 0x55, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x54, 0x00,
    80. 

  80.                                         0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x36, 0x00, 0xa6, 0x71, 0xbd, 0x94,
    81. 

  81.                                         0x78, 0x4f, 0x05, 0xf1, 0x3f, 0x3a, 0x7b, 0x41, 0xcf, 0x53, 0x2e, 0x36, 0x73, 0xe2, 0x14, 0x53,
    82. 

  82.                                         0xbd, 0x42, 0x5e, 0x8f, 0xa6, 0x71, 0xbd, 0x94, 0x78, 0x4f, 0x05, 0xf1, 0x3f, 0x3a, 0x7b, 0x41,
    83. 

  83.                                         0xcf, 0x53, 0x2e, 0x36, 0x73, 0xe2, 0x14, 0x53, 0xbd, 0x42, 0x5e, 0x8f};
    84. 

  84. 

  85.             byte[] serverChallenge = new ChallengeMessage(type2).ServerChallenge;
    86. 

  86.             AuthenticateMessage authenticateMessage = new AuthenticateMessage(type3);
    87. 

  87.             byte[] sessionBaseKey = new MD4().GetByteHashFromBytes(NTLMCryptography.NTOWFv1(password));
    88. 

  88.             byte[] lmowf = NTLMCryptography.LMOWFv1(password);
    89. 

  89.             byte[] exportedSessionKey = GetExportedSessionKey(sessionBaseKey, authenticateMessage, serverChallenge, lmowf);
    90. 

  90.             
    91. 

  91.             // https://msdn.microsoft.com/en-us/library/cc236695.aspx
    92. 

  92.             const int micFieldOffset = 72;
    93. 

  93.             ByteWriter.WriteBytes(type3, micFieldOffset, new byte[16]);
    94. 

  94.             byte[] temp = ByteUtils.Concatenate(ByteUtils.Concatenate(type1, type2), type3);
    95. 

  95.             byte[] mic = new HMACMD5(exportedSessionKey).ComputeHash(temp);
    96. 

  96.             byte[] expected = new byte[] { 0xae, 0xa7, 0xba, 0x44, 0x4e, 0x93, 0xa7, 0xdb, 0xb3, 0x0c, 0x85, 0x49, 0xc2, 0x2b, 0xba, 0x9a };
    97. 

  97. 

  98.             Assert.IsTrue(ByteUtils.AreByteArraysEqual(mic, expected));
    99. 

  99.         }
    100. 

  100. 

  101.         [TestMethod]
    102. 

  102.         public void TestNTLMv1ExtendedSessionSecurityKeyExchangeMIC()
    103. 

  103.         {
    104. 

  104.             string password = "Password";
    105. 

  105.             byte[] type1 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x97, 0x82, 0x08, 0xe2,
    106. 

  106.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    107. 

  107.                                         0x0a, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x0f};
    108. 

  108.             byte[] type2 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x02, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00,
    109. 

  109.                                         0x38, 0x00, 0x00, 0x00, 0x15, 0x82, 0x8a, 0xe2, 0x7a, 0x6d, 0x47, 0x52, 0x11, 0x8b, 0x9f, 0x37,
    110. 

  110.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x60, 0x00, 0x48, 0x00, 0x00, 0x00,
    111. 

  111.                                         0x06, 0x00, 0x71, 0x17, 0x00, 0x00, 0x00, 0x0f, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00,
    112. 

  112.                                         0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00, 0x02, 0x00, 0x10, 0x00, 0x54, 0x00, 0x41, 0x00,
    113. 

  113.                                         0x4c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00, 0x01, 0x00, 0x10, 0x00,
    114. 

  114.                                         0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00,
    115. 

  115.                                         0x04, 0x00, 0x10, 0x00, 0x54, 0x00, 0x61, 0x00, 0x6c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00,
    116. 

  116.                                         0x31, 0x00, 0x30, 0x00, 0x03, 0x00, 0x10, 0x00, 0x54, 0x00, 0x61, 0x00, 0x6c, 0x00, 0x2d, 0x00,
    117. 

  117.                                         0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00, 0x07, 0x00, 0x08, 0x00, 0x28, 0x9a, 0x19, 0xec,
    118. 

  118.                                         0x8d, 0x92, 0xd2, 0x01, 0x00, 0x00, 0x00, 0x00};
    119. 

  119.             byte[] type3 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x03, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00,
    120. 

  120.                                         0x7c, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0x94, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00,
    121. 

  121.                                         0x58, 0x00, 0x00, 0x00, 0x08, 0x00, 0x08, 0x00, 0x66, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00,
    122. 

  122.                                         0x6e, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00, 0xac, 0x00, 0x00, 0x00, 0x15, 0x82, 0x88, 0xe2,
    123. 

  123.                                         0x0a, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x0f, 0xc6, 0x21, 0x82, 0x59, 0x83, 0xda, 0xc7, 0xe7,
    124. 

  124.                                         0xfa, 0x96, 0x44, 0x67, 0x16, 0xc3, 0xb3, 0x5b, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00,
    125. 

  125.                                         0x56, 0x00, 0x4d, 0x00, 0x36, 0x00, 0x55, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x54, 0x00,
    126. 

  126.                                         0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x36, 0x00, 0x90, 0x13, 0xb0, 0x36,
    127. 

  127.                                         0xa4, 0xa5, 0xf0, 0x2e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    128. 

  128.                                         0x00, 0x00, 0x00, 0x00, 0x5c, 0x46, 0xea, 0x77, 0x30, 0x44, 0xee, 0xa5, 0x98, 0x26, 0xa0, 0x93,
    129. 

  129.                                         0x71, 0x5c, 0x83, 0xff, 0x76, 0x70, 0x1d, 0xf0, 0xb8, 0xa0, 0xad, 0x4d, 0xac, 0xe9, 0xf4, 0x5c,
    130. 

  130.                                         0x3e, 0xb1, 0xb6, 0x48, 0x08, 0xa0, 0x46, 0x8c, 0x31, 0xe1, 0x2d, 0x60};
    131. 

  131. 

  132.             byte[] serverChallenge = new ChallengeMessage(type2).ServerChallenge;
    133. 

  133.             AuthenticateMessage authenticateMessage = new AuthenticateMessage(type3);
    134. 

  134.             byte[] sessionBaseKey = new MD4().GetByteHashFromBytes(NTLMCryptography.NTOWFv1(password));
    135. 

  135.             byte[] lmowf = NTLMCryptography.LMOWFv1(password);
    136. 

  136.             byte[] exportedSessionKey = GetExportedSessionKey(sessionBaseKey, authenticateMessage, serverChallenge, lmowf);
    137. 

  137. 

  138.             // https://msdn.microsoft.com/en-us/library/cc236695.aspx
    139. 

  139.             const int micFieldOffset = 72;
    140. 

  140.             ByteWriter.WriteBytes(type3, micFieldOffset, new byte[16]);
    141. 

  141.             byte[] temp = ByteUtils.Concatenate(ByteUtils.Concatenate(type1, type2), type3);
    142. 

  142.             byte[] mic = new HMACMD5(exportedSessionKey).ComputeHash(temp);
    143. 

  143.             byte[] expected = new byte[] { 0xc6, 0x21, 0x82, 0x59, 0x83, 0xda, 0xc7, 0xe7, 0xfa, 0x96, 0x44, 0x67, 0x16, 0xc3, 0xb3, 0x5b };
    144. 

  144. 

  145.             Assert.IsTrue(ByteUtils.AreByteArraysEqual(mic, expected));
    146. 

  146.         }
    147. 

  147. 

  148.         [TestMethod]
    149. 

  149.         public void TestNTLMv2KeyExchangeMIC()
    150. 

  150.         {
    151. 

  151.             byte[] responseKeyNT = NTLMCryptography.NTOWFv2("Password", "User", "TAL-VM6");
    152. 

  152.             byte[] type1 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x97, 0x82, 0x08, 0xe2,
    153. 

  153.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    154. 

  154.                                         0x0a, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x0f};
    155. 

  155.             byte[] type2 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x02, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00,
    156. 

  156.                                         0x38, 0x00, 0x00, 0x00, 0x15, 0x82, 0x8a, 0xe2, 0x63, 0x74, 0x79, 0x77, 0xe1, 0xea, 0x35, 0x51,
    157. 

  157.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x60, 0x00, 0x48, 0x00, 0x00, 0x00,
    158. 

  158.                                         0x06, 0x00, 0x71, 0x17, 0x00, 0x00, 0x00, 0x0f, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00,
    159. 

  159.                                         0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00, 0x02, 0x00, 0x10, 0x00, 0x54, 0x00, 0x41, 0x00,
    160. 

  160.                                         0x4c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00, 0x01, 0x00, 0x10, 0x00,
    161. 

  161.                                         0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00,
    162. 

  162.                                         0x04, 0x00, 0x10, 0x00, 0x54, 0x00, 0x61, 0x00, 0x6c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00,
    163. 

  163.                                         0x31, 0x00, 0x30, 0x00, 0x03, 0x00, 0x10, 0x00, 0x54, 0x00, 0x61, 0x00, 0x6c, 0x00, 0x2d, 0x00,
    164. 

  164.                                         0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00, 0x07, 0x00, 0x08, 0x00, 0x1f, 0x8a, 0xd4, 0xff,
    165. 

  165.                                         0x01, 0x91, 0xd2, 0x01, 0x00, 0x00, 0x00, 0x00};
    166. 

  166.             byte[] type3 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x03, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00,
    167. 

  167.                                         0x7c, 0x00, 0x00, 0x00, 0x02, 0x01, 0x02, 0x01, 0x94, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00,
    168. 

  168.                                         0x58, 0x00, 0x00, 0x00, 0x08, 0x00, 0x08, 0x00, 0x66, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00,
    169. 

  169.                                         0x6e, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00, 0x96, 0x01, 0x00, 0x00, 0x15, 0x82, 0x88, 0xe2,
    170. 

  170.                                         0x0a, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x0f, 0x82, 0x3c, 0xff, 0x48, 0xa9, 0x03, 0x13, 0x4c,
    171. 

  171.                                         0x33, 0x3c, 0x09, 0x87, 0xf3, 0x16, 0x59, 0x89, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00,
    172. 

  172.                                         0x56, 0x00, 0x4d, 0x00, 0x36, 0x00, 0x55, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x54, 0x00,
    173. 

  173.                                         0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00,
    174. 

  174.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    175. 

  175.                                         0x00, 0x00, 0x00, 0x00, 0xb3, 0x06, 0x65, 0xe3, 0x9f, 0x03, 0xe1, 0xc3, 0xd8, 0x28, 0x7c, 0x9c,
    176. 

  176.                                         0x35, 0x0d, 0x32, 0x4c, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x8a, 0xd4, 0xff,
    177. 

  177.                                         0x01, 0x91, 0xd2, 0x01, 0x77, 0x71, 0x91, 0x94, 0xb1, 0x6e, 0x66, 0x28, 0x00, 0x00, 0x00, 0x00,
    178. 

  178.                                         0x02, 0x00, 0x10, 0x00, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00,
    179. 

  179.                                         0x31, 0x00, 0x30, 0x00, 0x01, 0x00, 0x10, 0x00, 0x54, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x2d, 0x00,
    180. 

  180.                                         0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00, 0x04, 0x00, 0x10, 0x00, 0x54, 0x00, 0x61, 0x00,
    181. 

  181.                                         0x6c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00, 0x03, 0x00, 0x10, 0x00,
    182. 

  182.                                         0x54, 0x00, 0x61, 0x00, 0x6c, 0x00, 0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00,
    183. 

  183.                                         0x07, 0x00, 0x08, 0x00, 0x1f, 0x8a, 0xd4, 0xff, 0x01, 0x91, 0xd2, 0x01, 0x06, 0x00, 0x04, 0x00,
    184. 

  184.                                         0x02, 0x00, 0x00, 0x00, 0x08, 0x00, 0x30, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    185. 

  185.                                         0x01, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x19, 0x0d, 0x73, 0xca, 0x97, 0x30, 0x2a, 0xa7,
    186. 

  186.                                         0x7a, 0x1f, 0xb6, 0xad, 0xe2, 0xe5, 0x4a, 0x59, 0x4a, 0x93, 0x7e, 0x37, 0xcd, 0x0c, 0xd7, 0x90,
    187. 

  187.                                         0x25, 0xc4, 0xaf, 0x8a, 0x17, 0x99, 0x69, 0x56, 0x0a, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
    188. 

  188.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00, 0x1a, 0x00,
    189. 

  189.                                         0x63, 0x00, 0x69, 0x00, 0x66, 0x00, 0x73, 0x00, 0x2f, 0x00, 0x54, 0x00, 0x61, 0x00, 0x6c, 0x00,
    190. 

  190.                                         0x2d, 0x00, 0x56, 0x00, 0x4d, 0x00, 0x31, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    191. 

  191.                                         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x71, 0x7c, 0xce, 0x0b, 0x92, 0x46, 0x46, 0x0d, 0x5b, 0x3b,
    192. 

  192.                                         0x11, 0xb4, 0xde, 0x86, 0x28, 0x11};
    193. 

  193. 

  194.             byte[] serverChallenge = new ChallengeMessage(type2).ServerChallenge;
    195. 

  195.             AuthenticateMessage authenticateMessage = new AuthenticateMessage(type3);
    196. 

  196.             byte[] ntProofStr = ByteReader.ReadBytes(authenticateMessage.NtChallengeResponse, 0, 16);
    197. 

  197.             byte[] sessionBaseKey = new HMACMD5(responseKeyNT).ComputeHash(ntProofStr);
    198. 

  198.             byte[] exportedSessionKey = GetExportedSessionKey(sessionBaseKey, authenticateMessage, serverChallenge, null);
    199. 

  199. 

  200.             // https://msdn.microsoft.com/en-us/library/cc236695.aspx
    201. 

  201.             const int micFieldOffset = 72;
    202. 

  202.             ByteWriter.WriteBytes(type3, micFieldOffset, new byte[16]);
    203. 

  203.             byte[] temp = ByteUtils.Concatenate(ByteUtils.Concatenate(type1, type2), type3);
    204. 

  204.             byte[] mic = new HMACMD5(exportedSessionKey).ComputeHash(temp);
    205. 

  205.             byte[] expected = new byte[] { 0x82, 0x3c, 0xff, 0x48, 0xa9, 0x03, 0x13, 0x4c, 0x33, 0x3c, 0x09, 0x87, 0xf3, 0x16, 0x59, 0x89 };
    206. 

  206. 

  207.             Assert.IsTrue(ByteUtils.AreByteArraysEqual(mic, expected));
    208. 

  208.         }
    209. 

  209. 

  210.         public void TestAll()
    211. 

  211.         {
    212. 

  212.             TestLMMIC();
    213. 

  213.             TestNTLMv1MIC();
    214. 

  214.             TestNTLMv1ExtendedSessionSecurityKeyExchangeMIC();
    215. 

  215.             TestNTLMv2KeyExchangeMIC();
    216. 

  216.         }
    217. 

  217. 

  218.         private static byte[] GetExportedSessionKey(byte[] sessionBaseKey, AuthenticateMessage message, byte[] serverChallenge, byte[] lmowf)
    219. 

  219.         {
    220. 

  220.             byte[] keyExchangeKey;
    221. 

  221.             if (AuthenticationMessageUtils.IsNTLMv2NTResponse(message.NtChallengeResponse))
    222. 

  222.             {
    223. 

  223.                 keyExchangeKey = sessionBaseKey;
    224. 

  224.             }
    225. 

  225.             else
    226. 

  226.             {
    227. 

  227.                 keyExchangeKey = NTLMCryptography.KXKey(sessionBaseKey, message.NegotiateFlags, message.LmChallengeResponse, serverChallenge, lmowf);
    228. 

  228.             }
    229. 

  229. 

  230.             if ((message.NegotiateFlags & NegotiateFlags.KeyExchange) > 0)
    231. 

  231.             {
    232. 

  232.                 return RC4.Decrypt(keyExchangeKey, message.EncryptedRandomSessionKey);
    233. 

  233.             }
    234. 

  234.             else
    235. 

  235.             {
    236. 

  236.                 return keyExchangeKey;
    237. 

  237.             }
    238. 

  238.         }   
    239. 

  239.     }
    240. 

  240. }
    241.