1 // 2 // HMACSHA256Test.cs - NUnit Test Cases for HMACSHA256 3 // 4 // Author: 5 // Sebastien Pouliot <sebastien@ximian.com> 6 // 7 // (C) 2003 Motus Technologies Inc. (http://www.motus.com) 8 // Copyright (C) 2006, 2007 Novell, Inc (http://www.novell.com) 9 // 10 11 12 using NUnit.Framework; 13 using System; 14 using System.IO; 15 using System.Security.Cryptography; 16 using System.Text; 17 18 namespace MonoTests.System.Security.Cryptography { 19 20 public class HS256 : HMACSHA256 { 21 22 public int BlockSize { 23 get { return base.BlockSizeValue; } 24 set { base.BlockSizeValue = value; } 25 } 26 } 27 28 // References: 29 // a. The HMAC-SHA-256-128 Algorithm and Its Use With IPsec 30 // http://www.ietf.org/proceedings/02jul/I-D/draft-ietf-ipsec-ciph-sha-256-01.txt 31 32 [TestFixture] 33 public class HMACSHA256Test : KeyedHashAlgorithmTest { 34 35 protected HMACSHA256 algo; 36 37 [SetUp] SetUp()38 public override void SetUp () 39 { 40 algo = new HMACSHA256 (); 41 algo.Key = new byte [8]; 42 hash = algo; 43 } 44 45 // the hash algorithm only exists as a managed implementation 46 public override bool ManagedHashImplementation { 47 get { return true; } 48 } 49 50 [Test] Constructors()51 public void Constructors () 52 { 53 algo = new HMACSHA256 (); 54 Assert.IsNotNull (algo, "HMACSHA256 ()"); 55 56 byte[] key = new byte [8]; 57 algo = new HMACSHA256 (key); 58 Assert.IsNotNull (algo, "HMACSHA256 (key)"); 59 } 60 61 [Test] 62 [ExpectedException (typeof (NullReferenceException))] Constructor_Null()63 public void Constructor_Null () 64 { 65 new HMACSHA256 (null); 66 } 67 68 [Test] Invariants()69 public void Invariants () 70 { 71 var algo = new HMACSHA256 (); 72 Assert.IsTrue (algo.CanReuseTransform, "HMACSHA256.CanReuseTransform"); 73 Assert.IsTrue (algo.CanTransformMultipleBlocks, "HMACSHA256.CanTransformMultipleBlocks"); 74 Assert.AreEqual ("SHA256", algo.HashName, "HMACSHA256.HashName"); 75 Assert.AreEqual (256, algo.HashSize, "HMACSHA256.HashSize"); 76 Assert.AreEqual (1, algo.InputBlockSize, "HMACSHA256.InputBlockSize"); 77 Assert.AreEqual (1, algo.OutputBlockSize, "HMACSHA256.OutputBlockSize"); 78 Assert.AreEqual (64, algo.Key.Length, "HMACSHA256.Key.Length"); 79 Assert.AreEqual ("System.Security.Cryptography.HMACSHA256", algo.ToString (), "HMACSHA256.ToString()"); 80 } 81 82 [Test] BlockSize()83 public void BlockSize () 84 { 85 HS256 hmac = new HS256 (); 86 Assert.AreEqual (64, hmac.BlockSize, "BlockSizeValue"); 87 } 88 Check(string testName, byte[] key, byte[] data, byte[] result)89 public void Check (string testName, byte[] key, byte[] data, byte[] result) 90 { 91 string classTestName = "HMACSHA256-" + testName; 92 CheckA (testName, key, data, result); 93 CheckB (testName, key, data, result); 94 CheckC (testName, key, data, result); 95 CheckD (testName, key, data, result); 96 CheckE (testName, key, data, result); 97 } 98 CheckA(string testName, byte[] key, byte[] data, byte[] result)99 public void CheckA (string testName, byte[] key, byte[] data, byte[] result) 100 { 101 algo = new HMACSHA256 (); 102 algo.Key = key; 103 byte[] hmac = algo.ComputeHash (data); 104 Assert.AreEqual (result, hmac, testName + "a1"); 105 Assert.AreEqual (result, algo.Hash, testName + "a2"); 106 } 107 CheckB(string testName, byte[] key, byte[] data, byte[] result)108 public void CheckB (string testName, byte[] key, byte[] data, byte[] result) 109 { 110 algo = new HMACSHA256 (); 111 algo.Key = key; 112 byte[] hmac = algo.ComputeHash (data, 0, data.Length); 113 Assert.AreEqual (result, hmac, testName + "b1"); 114 Assert.AreEqual (result, algo.Hash, testName + "b2"); 115 } 116 CheckC(string testName, byte[] key, byte[] data, byte[] result)117 public void CheckC (string testName, byte[] key, byte[] data, byte[] result) 118 { 119 algo = new HMACSHA256 (); 120 algo.Key = key; 121 MemoryStream ms = new MemoryStream (data); 122 byte[] hmac = algo.ComputeHash (ms); 123 Assert.AreEqual (result, hmac, testName + "c1"); 124 Assert.AreEqual (result, algo.Hash, testName + "c2"); 125 } 126 CheckD(string testName, byte[] key, byte[] data, byte[] result)127 public void CheckD (string testName, byte[] key, byte[] data, byte[] result) 128 { 129 algo = new HMACSHA256 (); 130 algo.Key = key; 131 // LAMESPEC or FIXME: TransformFinalBlock doesn't return HashValue ! 132 algo.TransformFinalBlock (data, 0, data.Length); 133 Assert.AreEqual (result, algo.Hash, testName + "d"); 134 } 135 CheckE(string testName, byte[] key, byte[] data, byte[] result)136 public void CheckE (string testName, byte[] key, byte[] data, byte[] result) 137 { 138 algo = new HMACSHA256 (); 139 algo.Key = key; 140 byte[] copy = new byte [data.Length]; 141 // LAMESPEC or FIXME: TransformFinalBlock doesn't return HashValue ! 142 for (int i=0; i < data.Length - 1; i++) 143 algo.TransformBlock (data, i, 1, copy, i); 144 algo.TransformFinalBlock (data, data.Length - 1, 1); 145 Assert.AreEqual (result, algo.Hash, testName + "e"); 146 } 147 148 [Test] 149 // Test Case #1: HMAC-SHA-256 with 3-byte input and 32-byte key HMACSHA256_TC1()150 public void HMACSHA256_TC1 () 151 { 152 byte[] key = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20 }; 153 byte[] data = Encoding.Default.GetBytes ("abc"); 154 byte[] digest = { 0xa2, 0x1b, 0x1f, 0x5d, 0x4c, 0xf4, 0xf7, 0x3a, 0x4d, 0xd9, 0x39, 0x75, 0x0f, 0x7a, 0x06, 0x6a, 0x7f, 0x98, 0xcc, 0x13, 0x1c, 0xb1, 0x6a, 0x66, 0x92, 0x75, 0x90, 0x21, 0xcf, 0xab, 0x81, 0x81 }; 155 Check ("HMACSHA256-TC1", key, data, digest); 156 } 157 158 [Test] 159 // HMAC-SHA-256 with 56-byte input and 32-byte key HMACSHA256_TC2()160 public void HMACSHA256_TC2 () 161 { 162 byte[] key = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20 }; 163 byte[] data = Encoding.Default.GetBytes ("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"); 164 byte[] digest = { 0x10, 0x4f, 0xdc, 0x12, 0x57, 0x32, 0x8f, 0x08, 0x18, 0x4b, 0xa7, 0x31, 0x31, 0xc5, 0x3c, 0xae, 0xe6, 0x98, 0xe3, 0x61, 0x19, 0x42, 0x11, 0x49, 0xea, 0x8c, 0x71, 0x24, 0x56, 0x69, 0x7d, 0x30 }; 165 Check ("HMACSHA256-TC2", key, data, digest); 166 } 167 168 [Test] 169 // Test Case #3: HMAC-SHA-256 with 112-byte (multi-block) input and 32-byte key HMACSHA256_TC3()170 public void HMACSHA256_TC3 () 171 { 172 byte[] key = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20 }; 173 byte[] data = Encoding.Default.GetBytes ("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopqabcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"); 174 byte[] digest = { 0x47, 0x03, 0x05, 0xfc, 0x7e, 0x40, 0xfe, 0x34, 0xd3, 0xee, 0xb3, 0xe7, 0x73, 0xd9, 0x5a, 0xab, 0x73, 0xac, 0xf0, 0xfd, 0x06, 0x04, 0x47, 0xa5, 0xeb, 0x45, 0x95, 0xbf, 0x33, 0xa9, 0xd1, 0xa3 }; 175 Check ("HMACSHA256-TC3", key, data, digest); 176 } 177 178 [Test] 179 // Test Case #4: HMAC-SHA-256 with 8-byte input and 32-byte key HMACSHA256_TC4()180 public void HMACSHA256_TC4 () 181 { 182 byte[] key = { 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b }; 183 byte[] data = Encoding.Default.GetBytes ("Hi There"); 184 byte[] digest = { 0x19, 0x8a, 0x60, 0x7e, 0xb4, 0x4b, 0xfb, 0xc6, 0x99, 0x03, 0xa0, 0xf1, 0xcf, 0x2b, 0xbd, 0xc5, 0xba, 0x0a, 0xa3, 0xf3, 0xd9, 0xae, 0x3c, 0x1c, 0x7a, 0x3b, 0x16, 0x96, 0xa0, 0xb6, 0x8c, 0xf7 }; 185 Check ("HMACSHA256-TC4", key, data, digest); 186 } 187 188 [Test] 189 // Test Case #5: HMAC-SHA-256 with 28-byte input and 4-byte key HMACSHA256_TC5()190 public void HMACSHA256_TC5 () 191 { 192 byte[] key = Encoding.Default.GetBytes ("Jefe"); 193 byte[] data = Encoding.Default.GetBytes ("what do ya want for nothing?"); 194 byte[] digest = { 0x5b, 0xdc, 0xc1, 0x46, 0xbf, 0x60, 0x75, 0x4e, 0x6a, 0x04, 0x24, 0x26, 0x08, 0x95, 0x75, 0xc7, 0x5a, 0x00, 0x3f, 0x08, 0x9d, 0x27, 0x39, 0x83, 0x9d, 0xec, 0x58, 0xb9, 0x64, 0xec, 0x38, 0x43 }; 195 Check ("HMACSHA256-TC5", key, data, digest); 196 } 197 198 [Test] 199 // Test Case #6: HMAC-SHA-256 with 50-byte input and 32-byte key HMACSHA256_TC6()200 public void HMACSHA256_TC6 () 201 { 202 byte[] key = { 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa }; 203 byte[] data = new byte [50]; 204 for (int i = 0; i < data.Length; i++) 205 data[i] = 0xdd; 206 byte[] digest = { 0xcd, 0xcb, 0x12, 0x20, 0xd1, 0xec, 0xcc, 0xea, 0x91, 0xe5, 0x3a, 0xba, 0x30, 0x92, 0xf9, 0x62, 0xe5, 0x49, 0xfe, 0x6c, 0xe9, 0xed, 0x7f, 0xdc, 0x43, 0x19, 0x1f, 0xbd, 0xe4, 0x5c, 0x30, 0xb0 }; 207 Check ("HMACSHA256-TC6", key, data, digest); 208 } 209 210 [Test] 211 // Test Case #7: HMAC-SHA-256 with 50-byte input and 37-byte key HMACSHA256_TC7()212 public void HMACSHA256_TC7 () 213 { 214 byte[] key = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25 }; 215 byte[] data = new byte [50]; 216 for (int i = 0; i < data.Length; i++) 217 data[i] = 0xcd; 218 byte[] digest = { 0xd4, 0x63, 0x3c, 0x17, 0xf6, 0xfb, 0x8d, 0x74, 0x4c, 0x66, 0xde, 0xe0, 0xf8, 0xf0, 0x74, 0x55, 0x6e, 0xc4, 0xaf, 0x55, 0xef, 0x07, 0x99, 0x85, 0x41, 0x46, 0x8e, 0xb4, 0x9b, 0xd2, 0xe9, 0x17 }; 219 Check ("HMACSHA256-TC7", key, data, digest); 220 } 221 222 [Test] 223 // Test Case #8: HMAC-SHA-256 with 20-byte input and 32-byte key HMACSHA256_TC8()224 public void HMACSHA256_TC8 () 225 { 226 byte[] key = { 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c }; 227 byte[] data = Encoding.Default.GetBytes ("Test With Truncation"); 228 byte[] digest = { 0x75, 0x46, 0xaf, 0x01, 0x84, 0x1f, 0xc0, 0x9b, 0x1a, 0xb9, 0xc3, 0x74, 0x9a, 0x5f, 0x1c, 0x17, 0xd4, 0xf5, 0x89, 0x66, 0x8a, 0x58, 0x7b, 0x27, 0x00, 0xa9, 0xc9, 0x7c, 0x11, 0x93, 0xcf, 0x42 }; 229 Check ("HMACSHA256-TC8", key, data, digest); 230 } 231 232 [Test] 233 // Test Case #9: HMAC-SHA-256 with 54-byte input and 80-byte key HMACSHA256_TC9()234 public void HMACSHA256_TC9 () 235 { 236 byte[] key = new byte [80]; 237 for (int i = 0; i < key.Length; i++) 238 key[i] = 0xaa; 239 byte[] data = Encoding.Default.GetBytes ("Test Using Larger Than Block-Size Key - Hash Key First"); 240 byte[] digest = { 0x69, 0x53, 0x02, 0x5e, 0xd9, 0x6f, 0x0c, 0x09, 0xf8, 0x0a, 0x96, 0xf7, 0x8e, 0x65, 0x38, 0xdb, 0xe2, 0xe7, 0xb8, 0x20, 0xe3, 0xdd, 0x97, 0x0e, 0x7d, 0xdd, 0x39, 0x09, 0x1b, 0x32, 0x35, 0x2f }; 241 Check ("HMACSHA256-TC9", key, data, digest); 242 } 243 244 [Test] 245 // Test Case #10: HMAC-SHA-256 with 73-byte (multi-block) input and 80-byte key HMACSHA256_TC10()246 public void HMACSHA256_TC10 () 247 { 248 byte[] key = new byte [80]; 249 for (int i = 0; i < key.Length; i++) 250 key[i] = 0xaa; 251 byte[] data = Encoding.Default.GetBytes ("Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data"); 252 byte[] digest = { 0x63, 0x55, 0xac, 0x22, 0xe8, 0x90, 0xd0, 0xa3, 0xc8, 0x48, 0x1a, 0x5c, 0xa4, 0x82, 0x5b, 0xc8, 0x84, 0xd3, 0xe7, 0xa1, 0xff, 0x98, 0xa2, 0xfc, 0x2a, 0xc7, 0xd8, 0xe0, 0x64, 0xc3, 0xb2, 0xe6 }; 253 Check ("HMACSHA256-TC10", key, data, digest); 254 } 255 } 256 } 257 258