Example #1
0
  public void performTest() throws Exception {
    super.performTest();

    byte[] keyBytes = new byte[16];

    _engine.init(true, new KeyParameter(keyBytes));

    //
    // init tests
    //
    try {
      byte[] dudKey = new byte[6];

      _engine.init(true, new KeyParameter(dudKey));

      fail("failed key length check");
    } catch (IllegalArgumentException e) {
      // expected
    }

    try {
      byte[] iv = new byte[16];

      _engine.init(true, new ParametersWithIV(null, iv));

      fail("failed parameter check");
    } catch (IllegalArgumentException e) {
      // expected
    }

    testNullCBC();
    testNullSIC();
    testNullOFB();
    testNullCFB();
  }
Example #2
0
 /**
  * Dekodiert einen Block mit DES
  *
  * @param key Byte-Array enthält den 3DES-Schlüssel
  * @param z verschlüsselter Block
  * @return entschlüsselter block
  */
 @Override
 public byte[] decryptBlock(byte[] key, byte[] z) {
   byte[] s = new byte[16];
   KeyParameter encKey = new KeyParameter(key);
   BlockCipher cipher = new DESedeEngine();
   cipher.init(false, encKey);
   cipher.processBlock(z, 0, s, 0);
   return s;
 }