2 // HMACSHA256Test.cs - NUnit Test Cases for HMACSHA256
5 // Sebastien Pouliot (spouliot@motus.com)
7 // (C) 2003 Motus Technologies Inc. (http://www.motus.com)
12 using NUnit.Framework;
15 using System.Security.Cryptography;
18 namespace MonoTests.System.Security.Cryptography {
21 // a. The HMAC-SHA-256-128 Algorithm and Its Use With IPsec
22 // http://www.ietf.org/proceedings/02jul/I-D/draft-ietf-ipsec-ciph-sha-256-01.txt
25 public class HMACSHA256Test : KeyedHashAlgorithmTest {
27 protected HMACSHA256 algo;
30 public void Constructors ()
32 algo = new HMACSHA256 ();
33 AssertNotNull ("HMACSHA256 ()", algo);
35 byte[] key = new byte [8];
36 algo = new HMACSHA256 (key);
37 AssertNotNull ("HMACSHA256 (key)", algo);
40 algo = new HMACSHA256 (null);
41 Fail ("HMACSHA256 (null) - Expected NullReferenceException but got none");
43 catch (NullReferenceException) {
44 // well ArgumentNullException would have been more appropriate
47 Fail ("HMACSHA256 (null) - Expected NullReferenceException but got: " + e.ToString ());
52 public void Invariants ()
54 algo = new HMACSHA256 ();
55 AssertEquals ("HMACSHA256.CanReuseTransform", true, algo.CanReuseTransform);
56 AssertEquals ("HMACSHA256.CanTransformMultipleBlocks", true, algo.CanTransformMultipleBlocks);
57 AssertEquals ("HMACSHA256.HashName", "SHA256", algo.HashName);
58 AssertEquals ("HMACSHA256.HashSize", 256, algo.HashSize);
59 AssertEquals ("HMACSHA256.InputBlockSize", 1, algo.InputBlockSize);
60 AssertEquals ("HMACSHA256.OutputBlockSize", 1, algo.OutputBlockSize);
61 AssertEquals ("HMACSHA256.ToString()", "System.Security.Cryptography.HMACSHA256", algo.ToString ());
64 public void Check (string testName, byte[] key, byte[] data, byte[] result)
66 string classTestName = "HMACSHA256-" + testName;
67 CheckA (testName, key, data, result);
68 CheckB (testName, key, data, result);
69 CheckC (testName, key, data, result);
70 CheckD (testName, key, data, result);
71 CheckE (testName, key, data, result);
74 public void CheckA (string testName, byte[] key, byte[] data, byte[] result)
76 algo = new HMACSHA256 ();
78 byte[] hmac = algo.ComputeHash (data);
79 AssertEquals (testName + "a1", result, hmac);
80 AssertEquals (testName + "a2", result, algo.Hash);
83 public void CheckB (string testName, byte[] key, byte[] data, byte[] result)
85 algo = new HMACSHA256 ();
87 byte[] hmac = algo.ComputeHash (data, 0, data.Length);
88 AssertEquals (testName + "b1", result, hmac);
89 AssertEquals (testName + "b2", result, algo.Hash);
92 public void CheckC (string testName, byte[] key, byte[] data, byte[] result)
94 algo = new HMACSHA256 ();
96 MemoryStream ms = new MemoryStream (data);
97 byte[] hmac = algo.ComputeHash (ms);
98 AssertEquals (testName + "c1", result, hmac);
99 AssertEquals (testName + "c2", result, algo.Hash);
102 public void CheckD (string testName, byte[] key, byte[] data, byte[] result)
104 algo = new HMACSHA256 ();
106 // LAMESPEC or FIXME: TransformFinalBlock doesn't return HashValue !
107 algo.TransformFinalBlock (data, 0, data.Length);
108 AssertEquals (testName + "d", result, algo.Hash);
111 public void CheckE (string testName, byte[] key, byte[] data, byte[] result)
113 algo = new HMACSHA256 ();
115 byte[] copy = new byte [data.Length];
116 // LAMESPEC or FIXME: TransformFinalBlock doesn't return HashValue !
117 for (int i=0; i < data.Length - 1; i++)
118 algo.TransformBlock (data, i, 1, copy, i);
119 algo.TransformFinalBlock (data, data.Length - 1, 1);
120 AssertEquals (testName + "e", result, algo.Hash);
124 // Test Case #1: HMAC-SHA-256 with 3-byte input and 32-byte key
125 public void HMACSHA256_TC1 ()
127 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 };
128 byte[] data = Encoding.Default.GetBytes ("abc");
129 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 };
130 Check ("HMACSHA256-TC1", key, data, digest);
134 // HMAC-SHA-256 with 56-byte input and 32-byte key
135 public void HMACSHA256_TC2 ()
137 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 };
138 byte[] data = Encoding.Default.GetBytes ("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq");
139 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 };
140 Check ("HMACSHA256-TC2", key, data, digest);
144 // Test Case #3: HMAC-SHA-256 with 112-byte (multi-block) input and 32-byte key
145 public void HMACSHA256_TC3 ()
147 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 };
148 byte[] data = Encoding.Default.GetBytes ("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopqabcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq");
149 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 };
150 Check ("HMACSHA256-TC3", key, data, digest);
154 // Test Case #4: HMAC-SHA-256 with 8-byte input and 32-byte key
155 public void HMACSHA256_TC4 ()
157 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 };
158 byte[] data = Encoding.Default.GetBytes ("Hi There");
159 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 };
160 Check ("HMACSHA256-TC4", key, data, digest);
164 // Test Case #5: HMAC-SHA-256 with 28-byte input and 4-byte key
165 public void HMACSHA256_TC5 ()
167 byte[] key = Encoding.Default.GetBytes ("Jefe");
168 byte[] data = Encoding.Default.GetBytes ("what do ya want for nothing?");
169 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 };
170 Check ("HMACSHA256-TC5", key, data, digest);
174 // Test Case #6: HMAC-SHA-256 with 50-byte input and 32-byte key
175 public void HMACSHA256_TC6 ()
177 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 };
178 byte[] data = new byte [50];
179 for (int i = 0; i < data.Length; i++)
181 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 };
182 Check ("HMACSHA256-TC6", key, data, digest);
186 // Test Case #7: HMAC-SHA-256 with 50-byte input and 37-byte key
187 public void HMACSHA256_TC7 ()
189 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 };
190 byte[] data = new byte [50];
191 for (int i = 0; i < data.Length; i++)
193 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 };
194 Check ("HMACSHA256-TC7", key, data, digest);
198 // Test Case #8: HMAC-SHA-256 with 20-byte input and 32-byte key
199 public void HMACSHA256_TC8 ()
201 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 };
202 byte[] data = Encoding.Default.GetBytes ("Test With Truncation");
203 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 };
204 Check ("HMACSHA256-TC8", key, data, digest);
208 // Test Case #9: HMAC-SHA-256 with 54-byte input and 80-byte key
209 public void HMACSHA256_TC9 ()
211 byte[] key = new byte [80];
212 for (int i = 0; i < key.Length; i++)
214 byte[] data = Encoding.Default.GetBytes ("Test Using Larger Than Block-Size Key - Hash Key First");
215 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 };
216 Check ("HMACSHA256-TC9", key, data, digest);
220 // Test Case #10: HMAC-SHA-256 with 73-byte (multi-block) input and 80-byte key
221 public void HMACSHA256_TC10 ()
223 byte[] key = new byte [80];
224 for (int i = 0; i < key.Length; i++)
226 byte[] data = Encoding.Default.GetBytes ("Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data");
227 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 };
228 Check ("HMACSHA256-TC10", key, data, digest);