mcs/class/corlib/Test/System.Security.Cryptography/RSAPKCS1SignatureFormatterTest.cs

   1 //
   2 // RSAPKCS1SignatureFormatterTest.cs - NUnit tests for PKCS#1 v.1.5 signature.
   3 //
   4 // Author:
   5 //      Sebastien Pouliot (sebastien@ximian.com)
   6 //
   7 // (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
   8 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using NUnit.Framework;
  31 using System;
  32 using System.Security.Cryptography;
  33
  34 namespace MonoTests.System.Security.Cryptography {
  35
  36         [TestFixture]
  37         public class RSAPKCS1SignatureFormatterTest : Assertion {
  38
  39 #if NET_2_0
  40                 // FX 2.0 changed the OID values for SHA256, SHA384 and SHA512 - so the signature values are different
  41                 private static byte[] signatureRSASHA256 = { 0xAD, 0x6E, 0x29, 0xC8, 0x7D, 0xFE, 0x5F, 0xB3, 0x92, 0x07, 0x4C, 0x51, 0x08, 0xC5, 0x91, 0xA2, 0xCF, 0x7E, 0xA6, 0x05, 0x66, 0x85, 0xA3, 0x8E, 0x7C, 0xB0, 0xCA, 0x93, 0x4F, 0x4E, 0xF5, 0x45, 0x0F, 0xED, 0x46, 0xFB, 0x34, 0xBC, 0x8A, 0x6A, 0x48, 0xD9, 0x76, 0x28, 0xE1, 0x68, 0xA0, 0x1F, 0x7F, 0x3E, 0xCC, 0x0A, 0x5F, 0x06, 0x8E, 0xEB, 0xB7, 0xA7, 0x48, 0x6B, 0x92, 0x1A, 0x7A, 0x66, 0x42, 0x4F, 0x0B, 0xC1, 0x19, 0x96, 0xAC, 0x67, 0xA0, 0x6C, 0x3E, 0x39, 0xD2, 0xEB, 0xCA, 0xD7, 0x12, 0x29, 0x46, 0x0A, 0x60, 0x70, 0xA9, 0x2B, 0x80, 0x9F, 0xCD, 0x08, 0x02, 0xEB, 0xA5, 0x62, 0xEC, 0xAB, 0xBB, 0x64, 0x8B, 0x2D, 0xB9, 0x55, 0x0A, 0xE3, 0x5A, 0x2C, 0xDA, 0x54, 0xD4, 0x79, 0x0A, 0x8D, 0xB6, 0x57, 0x05, 0xF7, 0x6C, 0x6D, 0xB7, 0xD8, 0xB4, 0x07, 0xC4, 0xCD, 0x79, 0xD4 };
  42                 private static byte[] signatureRSASHA384 = { 0x53, 0x80, 0xFD, 0x26, 0x8F, 0xCF, 0xE5, 0x44, 0x55, 0x4A, 0xC5, 0xB2, 0x46, 0x78, 0x89, 0x42, 0xF8, 0x51, 0xB8, 0x4D, 0x3B, 0xCA, 0x48, 0x5A, 0x36, 0x9F, 0x62, 0x01, 0x72, 0x1E, 0xD8, 0x2D, 0xC2, 0x2D, 0x3E, 0x67, 0x1C, 0x5D, 0x89, 0xAB, 0x39, 0x8D, 0x07, 0xC8, 0xD4, 0x47, 0x97, 0xA4, 0x68, 0x7A, 0x87, 0xA4, 0xCF, 0x7B, 0x32, 0x4F, 0xD3, 0xD1, 0x90, 0xDC, 0x76, 0x23, 0x51, 0xA7, 0xEE, 0xFC, 0x7F, 0xDF, 0x3C, 0xB0, 0x05, 0xF3, 0xE3, 0xAA, 0x96, 0x30, 0xE0, 0xE4, 0x8B, 0x09, 0xB1, 0x78, 0xAC, 0x99, 0xDB, 0xC5, 0x0E, 0xFA, 0xAB, 0x4F, 0xA1, 0x02, 0xCA, 0x77, 0x93, 0x74, 0x5A, 0xB8, 0x71, 0x9C, 0x3E, 0x2E, 0xAE, 0x62, 0xC7, 0xE5, 0xBF, 0xDA, 0xFE, 0x31, 0xA7, 0x91, 0xC0, 0x04, 0xE3, 0x95, 0xCB, 0x3F, 0x54, 0xA8, 0x09, 0x25, 0xF7, 0x09, 0x78, 0xE6, 0x09, 0x84 };
  43                 private static byte[] signatureRSASHA512 = { 0xA8, 0xD0, 0x24, 0xCB, 0xA2, 0x4B, 0x5E, 0x0D, 0xBC, 0x3F, 0x6F, 0x0F, 0x8D, 0xE4, 0x31, 0x9E, 0x37, 0x84, 0xE0, 0x31, 0x5B, 0x63, 0x24, 0xC5, 0xA9, 0x05, 0x41, 0xAA, 0x69, 0x02, 0x8F, 0xC1, 0x57, 0x06, 0x1F, 0xBF, 0x3B, 0x8B, 0xC8, 0x86, 0xB3, 0x02, 0xEA, 0xF1, 0x75, 0xE4, 0x70, 0x21, 0x1E, 0x16, 0x4C, 0x37, 0xB2, 0x31, 0x78, 0xD0, 0xA0, 0x88, 0xA5, 0x1D, 0x5D, 0x8F, 0xBC, 0xC3, 0x87, 0x94, 0x4B, 0x8F, 0x4E, 0x92, 0xBC, 0x80, 0xF8, 0xA5, 0x90, 0xF7, 0xA0, 0x6D, 0x96, 0x61, 0x65, 0x0D, 0xD5, 0x3F, 0xD7, 0x4F, 0x07, 0x58, 0x40, 0xB8, 0xA4, 0x14, 0x14, 0x55, 0x39, 0x4F, 0xF0, 0xB5, 0x56, 0x99, 0xC8, 0x52, 0x0C, 0xDD, 0xBA, 0x8D, 0xFB, 0x06, 0x83, 0x6E, 0x79, 0x25, 0x75, 0xEF, 0x0D, 0x26, 0x14, 0x3A, 0xBB, 0x62, 0x29, 0x21, 0xF6, 0x4B, 0x9E, 0x87, 0x28, 0x57 };
  44 #else
  45                 private static byte[] signatureRSASHA256 = { 0x0F, 0xE3, 0x15, 0x5B, 0x4D, 0xA1, 0xB4, 0x13, 0x93, 0x91, 0x1E, 0x17, 0xF9, 0x36, 0xB3, 0x2C, 0xAC, 0x51, 0x77, 0xBC, 0x86, 0x21, 0xB0, 0x69, 0x75, 0x57, 0xAF, 0xB0, 0xAD, 0xF9, 0x42, 0xF5, 0x58, 0xBC, 0xD5, 0x61, 0xD5, 0x14, 0x8E, 0xC6, 0xE0, 0xB3, 0xB5, 0x51, 0xCD, 0x17, 0x68, 0x58, 0x27, 0x74, 0x8A, 0xA7, 0x88, 0xB9, 0x24, 0xD6, 0xE4, 0xC4, 0x93, 0x82, 0x95, 0xB4, 0x36, 0x14, 0x48, 0xA7, 0xF6, 0x27, 0x87, 0xEB, 0xD8, 0xB9, 0x75, 0x14, 0x75, 0xFB, 0x6E, 0xA1, 0xF7, 0xAB, 0xA6, 0x78, 0x32, 0xEF, 0x1A, 0x23, 0x60, 0xD3, 0x0C, 0x8D, 0xFE, 0x89, 0x72, 0xB7, 0x93, 0x6D, 0x00, 0x25, 0xED, 0xF5, 0x55, 0x66, 0xA8, 0x52, 0x7F, 0x20, 0xFD, 0x77, 0xDA, 0x10, 0x77, 0xE9, 0xF0, 0x58, 0x8D, 0xE6, 0x3A, 0x5A, 0x00, 0x83, 0x64, 0x42, 0xA5, 0x15, 0x79, 0x3C, 0xB0, 0x8F };
  46                 private static byte[] signatureRSASHA384 = { 0x86, 0x20, 0x2A, 0xB6, 0xA8, 0x0F, 0x59, 0x42, 0xCA, 0x83, 0xC3, 0x46, 0x2C, 0xA9, 0x2E, 0x62, 0x73, 0x2C, 0xEE, 0x52, 0xA5, 0xAE, 0x4F, 0xFD, 0xB1, 0x1F, 0xFA, 0x0C, 0x71, 0x4A, 0xFD, 0xE2, 0xAC, 0x64, 0x1C, 0x63, 0x41, 0xB8, 0x43, 0x3F, 0x8A, 0xF3, 0x7E, 0x1C, 0x25, 0xBE, 0xEE, 0xFC, 0x7C, 0xCB, 0x33, 0x72, 0x3B, 0x91, 0x1F, 0xF3, 0x78, 0xC2, 0xD0, 0xEA, 0xDF, 0x69, 0xE9, 0x31, 0x2F, 0x39, 0x32, 0x5F, 0x4A, 0x51, 0xAE, 0x24, 0x9E, 0x96, 0x77, 0xFB, 0x16, 0xC4, 0xDD, 0x98, 0xDA, 0xA9, 0x9D, 0xA0, 0x7C, 0x2C, 0x95, 0x12, 0x53, 0x1F, 0x7B, 0x23, 0xEE, 0x78, 0x95, 0x57, 0xFF, 0x02, 0x57, 0x2B, 0x4A, 0x3E, 0x62, 0x6A, 0xC0, 0x99, 0xDF, 0x4B, 0x7E, 0xBF, 0x86, 0xC4, 0xFB, 0x8E, 0xF3, 0x70, 0xA2, 0xEE, 0x7B, 0xCA, 0x8B, 0x22, 0xA4, 0x07, 0xBA, 0xBD, 0x16, 0xA9 };
  47                 private static byte[] signatureRSASHA512 = { 0xB7, 0x7E, 0x7E, 0xEF, 0x95, 0xCE, 0xE8, 0x9D, 0x0F, 0x40, 0x35, 0x50, 0x88, 0xFE, 0x8B, 0xA3, 0x26, 0xD3, 0x9E, 0xA7, 0x82, 0x23, 0x1A, 0x46, 0x13, 0x46, 0x81, 0x59, 0xD1, 0x24, 0x45, 0xAC, 0x53, 0xEF, 0x5A, 0x06, 0x31, 0xA7, 0xC2, 0x76, 0xDC, 0x2B, 0x60, 0x69, 0xB1, 0x36, 0x1D, 0xE1, 0xFC, 0xD5, 0x9A, 0x01, 0x71, 0x08, 0xE9, 0x0C, 0xAE, 0xF4, 0x29, 0xCF, 0xC4, 0xB0, 0x60, 0xA4, 0xBE, 0x1C, 0x9B, 0x05, 0x2A, 0xA9, 0x6A, 0x12, 0xFF, 0x73, 0x84, 0x5C, 0xA8, 0x74, 0x5B, 0x9C, 0xA2, 0x07, 0x9D, 0x73, 0xB8, 0xE3, 0x20, 0x16, 0x3C, 0x47, 0x8F, 0x27, 0x7A, 0x48, 0xAF, 0x01, 0x07, 0xA0, 0x6A, 0x2D, 0x71, 0xAD, 0xDD, 0x8B, 0x68, 0xC8, 0x32, 0x61, 0x95, 0x68, 0x22, 0x1B, 0x8B, 0xD9, 0x86, 0xA7, 0xBE, 0x60, 0x06, 0x70, 0x7C, 0xED, 0x51, 0x28, 0x66, 0x28, 0xF0, 0x65 };
  48 #endif
  49                 private static RSA rsa;
  50                 private static DSA dsa;
  51
  52                 private RSAPKCS1SignatureFormatter fmt;
  53
  54                 [SetUp]
  55                 public void SetUp ()
  56                 {
  57                         if (rsa == null) {
  58                                 rsa = RSA.Create ();
  59                                 rsa.ImportParameters (AllTests.GetRsaKey (true));
  60                         }
  61                         if (dsa == null)
  62                                 dsa = DSA.Create ();
  63                 }
  64
  65                 public void AssertEquals (string msg, byte[] array1, byte[] array2)
  66                 {
  67                         AllTests.AssertEquals (msg, array1, array2);
  68                 }
  69
  70                 [Test]
  71                 public void ConstructorEmpty ()
  72                 {
  73                         fmt = new RSAPKCS1SignatureFormatter ();
  74                         AssertNotNull ("RSAPKCS1SignatureFormatter()", fmt);
  75                 }
  76
  77                 [Test]
  78 #if NET_2_0
  79                 [ExpectedException (typeof (ArgumentNullException))]
  80 #endif
  81                 public void ConstructorNull ()
  82                 {
  83                         fmt = new RSAPKCS1SignatureFormatter (null);
  84                         AssertNotNull ("RSAPKCS1SignatureFormatter(null)", fmt);
  85                 }
  86
  87                 [Test]
  88                 public void ConstructorRSA ()
  89                 {
  90                         fmt = new RSAPKCS1SignatureFormatter (rsa);
  91                         AssertNotNull ("RSAPKCS1SignatureFormatter(rsa)", fmt);
  92                 }
  93
  94                 [Test]
  95                 [ExpectedException (typeof (InvalidCastException))]
  96                 public void ConstructorDSA ()
  97                 {
  98                         fmt = new RSAPKCS1SignatureFormatter (dsa);
  99                 }
 100
 101                 [Test]
 102                 public void SetKeyRSA ()
 103                 {
 104                         fmt = new RSAPKCS1SignatureFormatter ();
 105                         fmt.SetKey (rsa);
 106                 }
 107
 108                 [Test]
 109                 [ExpectedException (typeof (InvalidCastException))]
 110                 public void SetKeyDSA ()
 111                 {
 112                         fmt = new RSAPKCS1SignatureFormatter ();
 113                         fmt.SetKey (dsa);
 114                 }
 115
 116                 [Test]
 117 #if NET_2_0
 118                 [ExpectedException (typeof (ArgumentNullException))]
 119 #endif
 120                 public void SetKeyNull ()
 121                 {
 122                         fmt = new RSAPKCS1SignatureFormatter ();
 123                         fmt.SetKey (null);
 124                 }
 125
 126                 [Test]
 127                 public void SetHashAlgorithmSHA1 ()
 128                 {
 129                         fmt = new RSAPKCS1SignatureFormatter ();
 130                         fmt.SetHashAlgorithm ("SHA1");
 131                 }
 132
 133                 [Test]
 134                 public void SetHashAlgorithmMD5 ()
 135                 {
 136                         fmt = new RSAPKCS1SignatureFormatter ();
 137                         fmt.SetHashAlgorithm ("MD5");
 138                 }
 139
 140                 [Test]
 141                 public void SetHashAlgorithmSHA256 ()
 142                 {
 143                         fmt = new RSAPKCS1SignatureFormatter ();
 144                         fmt.SetHashAlgorithm ("SHA256");
 145                 }
 146
 147                 [Test]
 148                 public void SetHashAlgorithmSHA384 ()
 149                 {
 150                         fmt = new RSAPKCS1SignatureFormatter ();
 151                         fmt.SetHashAlgorithm ("SHA384");
 152                 }
 153
 154                 [Test]
 155                 public void SetHashAlgorithmSHA512 ()
 156                 {
 157                         fmt = new RSAPKCS1SignatureFormatter ();
 158                         fmt.SetHashAlgorithm ("SHA512");
 159                 }
 160
 161                 [Test]
 162                 [ExpectedException (typeof (ArgumentNullException))]
 163                 public void SetHashAlgorithmNull ()
 164                 {
 165                         fmt = new RSAPKCS1SignatureFormatter ();
 166                         fmt.SetHashAlgorithm (null);
 167                 }
 168
 169                 // see: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpcongeneratingsignatures.asp
 170
 171                 [Test]
 172                 [ExpectedException (typeof (CryptographicUnexpectedOperationException))]
 173                 public void CreateSignatureNullHash ()
 174                 {
 175                         fmt = new RSAPKCS1SignatureFormatter ();
 176                         fmt.SetKey (rsa);
 177                         byte[] hash = null;
 178                         byte[] signature = fmt.CreateSignature (hash);
 179                 }
 180
 181                 [Test]
 182                 [ExpectedException (typeof (CryptographicUnexpectedOperationException))]
 183                 public void CreateSignatureNoHashAlgorithm ()
 184                 {
 185                         fmt = new RSAPKCS1SignatureFormatter ();
 186                         // no hash algorithm
 187                         byte[] hash = new byte [1];
 188                         byte[] signature = fmt.CreateSignature (hash);
 189                 }
 190
 191                 [Test]
 192                 [ExpectedException (typeof (CryptographicUnexpectedOperationException))]
 193                 public void CreateSignatureNoKey ()
 194                 {
 195                         fmt = new RSAPKCS1SignatureFormatter ();
 196                         // no key
 197                         fmt.SetHashAlgorithm ("SHA1");
 198                         byte[] hash = new byte [20];
 199                         byte[] signature = fmt.CreateSignature (hash);
 200                 }
 201
 202                 [Test]
 203                 public void CreateSignatureRSASHA1 ()
 204                 {
 205                         fmt = new RSAPKCS1SignatureFormatter ();
 206                         // we need the private key
 207                         fmt.SetKey (rsa);
 208                         // good SHA1
 209                         fmt.SetHashAlgorithm ("SHA1");
 210                         byte[] hash = new byte [20];
 211                         byte[] signature = fmt.CreateSignature (hash);
 212                         AssertNotNull ("CreateSignature(SHA1)", signature);
 213                 }
 214
 215                 [Test]
 216                 [ExpectedException (typeof (CryptographicException))]
 217                 public void CreateSignatureRSASHA1BadLength ()
 218                 {
 219                         fmt = new RSAPKCS1SignatureFormatter ();
 220                         // we need the private key
 221                         fmt.SetKey (rsa);
 222                         // wrong length SHA1
 223                         fmt.SetHashAlgorithm ("SHA1");
 224                         byte[] hash = new byte [19];
 225                         byte[] signature = fmt.CreateSignature (hash);
 226                 }
 227
 228                 [Test]
 229                 public void CreateSignatureRSAMD5 ()
 230                 {
 231                         fmt = new RSAPKCS1SignatureFormatter ();
 232                         // we need the private key
 233                         fmt.SetKey (rsa);
 234                         // good MD5
 235                         fmt.SetHashAlgorithm ("MD5");
 236                         byte[] hash = new byte [16];
 237                         byte[] signature = fmt.CreateSignature (hash);
 238                         AssertNotNull ("CreateSignature(MD5)", signature);
 239                 }
 240
 241                 private byte[] CreateSignature (string hashName, int hashSize)
 242                 {
 243                         byte[] signature = null;
 244                         fmt = new RSAPKCS1SignatureFormatter ();
 245                         bool ms = false;
 246                         // we need the private key
 247                         RSA rsa = RSA.Create ("Mono.Security.Cryptography.RSAManaged"); // only available with Mono::
 248                         if (rsa == null) {
 249                                 ms = true;
 250                                 rsa = RSA.Create ();
 251                         }
 252                         rsa.ImportParameters (AllTests.GetRsaKey (true));
 253                         fmt.SetKey (rsa);
 254                         try {
 255                                 HashAlgorithm ha = HashAlgorithm.Create (hashName);
 256                                 byte[] data = new byte [ha.HashSize >> 3];
 257                                 // this way we get the same results as CreateSignatureHash
 258                                 data = ha.ComputeHash (data);
 259
 260                                 fmt.SetHashAlgorithm (hashName);
 261                                 signature = fmt.CreateSignature (data);
 262                                 if (ms)
 263                                         Fail ("CreateSignature(" + hashName + ") Expected CryptographicException but got none");
 264                         }
 265                         catch (CryptographicException) {
 266                                 if (!ms)
 267                                         throw;
 268                         }
 269                         catch (Exception e) {
 270                                 if (ms)
 271                                         Fail ("CreateSignatureHash(" + hashName + ") Expected CryptographicException but got " + e.ToString ());
 272                         }
 273                         return signature;
 274                 }
 275
 276                 // not supported using MS framework 1.0 and 1.1 (CryptographicException)
 277                 // supported by Mono::
 278                 [Test]
 279                 public void CreateSignatureRSASHA256 ()
 280                 {
 281                         byte[] signature = CreateSignature ("SHA256", 32);
 282                         if (signature != null)
 283                                 AssertEquals ("CreateSignature(SHA256)", signatureRSASHA256, signature);
 284                 }
 285
 286                 // not supported using MS framework 1.0 and 1.1 (CryptographicException)
 287                 // supported by Mono::
 288                 [Test]
 289                 public void CreateSignatureRSASHA384 ()
 290                 {
 291                         byte[] signature = CreateSignature ("SHA384", 48);
 292                         if (signature != null)
 293                                 AssertEquals ("CreateSignature(SHA384)", signatureRSASHA384, signature);
 294                 }
 295
 296                 // not supported using MS framework 1.0 and 1.1 (CryptographicException)
 297                 // supported by Mono::
 298                 [Test]
 299                 public void CreateSignatureRSASHA512 ()
 300                 {
 301                         byte[] signature = CreateSignature ("SHA512", 64);
 302                         if (signature != null)
 303                                 AssertEquals ("CreateSignature(SHA512)", signatureRSASHA512, signature);
 304                 }
 305
 306                 [Test]
 307                 [ExpectedException (typeof (CryptographicUnexpectedOperationException))]
 308                 public void CreateSignatureRSABadHash ()
 309                 {
 310                         fmt = new RSAPKCS1SignatureFormatter ();
 311                         // we need the private key
 312                         fmt.SetKey (rsa);
 313                         // null (bad ;-)
 314                         byte[] hash = null;
 315                         byte[] signature  = fmt.CreateSignature (hash);
 316                 }
 317
 318                 [Test]
 319                 [ExpectedException (typeof (ArgumentNullException))]
 320                 public void CreateSignatureHashBadHash ()
 321                 {
 322                         fmt = new RSAPKCS1SignatureFormatter ();
 323                         HashAlgorithm hash = null;
 324                         byte[] data = new byte [20];
 325                         // no hash algorithm
 326                         byte[] signature = fmt.CreateSignature (hash);
 327                 }
 328
 329                 [Test]
 330                 [ExpectedException (typeof (CryptographicUnexpectedOperationException))]
 331                 public void CreateSignatureHashNoKey ()
 332                 {
 333                         fmt = new RSAPKCS1SignatureFormatter ();
 334                         byte[] data = new byte [20];
 335                         // no key
 336                         HashAlgorithm hash = SHA1.Create ();
 337                         hash.ComputeHash (data);
 338                         byte[] signature = fmt.CreateSignature (hash);
 339                 }
 340
 341                 [Test]
 342                 public void CreateSignatureHashSHA1 ()
 343                 {
 344                         fmt = new RSAPKCS1SignatureFormatter ();
 345                         byte[] data = new byte [20];
 346                         // we need the private key
 347                         fmt.SetKey (rsa);
 348                         // good SHA1
 349                         HashAlgorithm hash = SHA1.Create ();
 350                         hash.ComputeHash (data);
 351                         byte[] signature = fmt.CreateSignature (hash);
 352                         AssertNotNull ("CreateSignature(SHA1)", signature);
 353                 }
 354
 355                 [Test]
 356                 public void CreateSignatureHashMD5 ()
 357                 {
 358                         fmt = new RSAPKCS1SignatureFormatter ();
 359                         byte[] data = new byte [16];
 360                         // we need the private key
 361                         fmt.SetKey (rsa);
 362                         // good MD5
 363                         HashAlgorithm hash = MD5.Create ();
 364                         hash.ComputeHash (data);
 365                         byte[] signature = fmt.CreateSignature (hash);
 366                         AssertNotNull ("CreateSignature(MD5)", signature);
 367                 }
 368
 369                 private byte[] CreateSignatureHash (string hashName)
 370                 {
 371                         byte[] signature = null;
 372                         fmt = new RSAPKCS1SignatureFormatter ();
 373                         bool ms = false;
 374                         // we need the private key
 375                         RSA rsa = RSA.Create ("Mono.Security.Cryptography.RSAManaged"); // only available with Mono::
 376                         if (rsa == null) {
 377                                 ms = true;
 378                                 rsa = RSA.Create ();
 379                         }
 380                         rsa.ImportParameters (AllTests.GetRsaKey (true));
 381                         fmt.SetKey (rsa);
 382                         try {
 383                                 HashAlgorithm hash = HashAlgorithm.Create (hashName);
 384                                 byte[] data = new byte [(hash.HashSize >> 3)];
 385                                 hash.ComputeHash (data);
 386                                 signature = fmt.CreateSignature (hash);
 387                                 if (ms)
 388                                         Fail ("CreateSignatureHash(" + hashName + ") Expected CryptographicException but got none");
 389                         }
 390                         catch (CryptographicException) {
 391                                 if (!ms)
 392                                         throw;
 393                         }
 394                         catch (Exception e) {
 395                                 if (ms)
 396                                         Fail ("CreateSignatureHash(" + hashName + ") Expected CryptographicException but got " + e.ToString ());
 397                         }
 398                         return signature;
 399                 }
 400
 401                 // not supported using MS framework 1.0 and 1.1 (CryptographicException)
 402                 // supported by Mono::
 403                 [Test]
 404                 public void CreateSignatureHashSHA256 ()
 405                 {
 406                         byte[] signature = CreateSignatureHash ("SHA256");
 407                         if (signature != null)
 408                                 AssertEquals ("CreateSignatureHash(SHA256)", signatureRSASHA256, signature);
 409                 }
 410
 411                 // not supported using MS framework 1.0 and 1.1 (CryptographicException)
 412                 // supported by Mono::
 413                 [Test]
 414                 public void CreateSignatureHashSHA384 ()
 415                 {
 416                         byte[] signature = CreateSignatureHash ("SHA384");
 417                         if (signature != null)
 418                                 AssertEquals ("CreateSignatureHash(SHA384)", signatureRSASHA384, signature);
 419                 }
 420
 421                 // not supported using MS framework 1.0 and 1.1 (CryptographicException)
 422                 // supported by Mono::
 423                 [Test]
 424                 public void CreateSignatureHashSHA512 ()
 425                 {
 426                         byte[] signature = CreateSignatureHash ("SHA512");
 427                         if (signature != null)
 428                                 AssertEquals ("CreateSignatureHash(SHA512)", signatureRSASHA512, signature);
 429                 }
 430         }
 431 }