public override void PerformTest()
{
for (int i = 0; i < TEST_VECTORS.Length; i++)
{
TestCase testCase = TEST_VECTORS[i];
IMac mac = new GMac(new GcmBlockCipher(new AesFastEngine()), testCase.getTag().Length * 8);
ICipherParameters key = new KeyParameter(testCase.getKey());
mac.Init(new ParametersWithIV(key, testCase.getIv()));
testSingleByte(mac, testCase);
testMultibyte(mac, testCase);
}
// Invalid mac size
testInvalidMacSize(97);
testInvalidMacSize(136);
testInvalidMacSize(88);
testInvalidMacSize(64);
}
private void testInvalidMacSize(int size)
{
try
{
GMac mac = new GMac(new GcmBlockCipher(new AesFastEngine()), size);
mac.Init(new ParametersWithIV(null, new byte[16]));
Fail("Expected failure for illegal mac size " + size);
}
catch (ArgumentException)
{
}
}
private void testInvalidMacSize(int size)
{
try
{
GMac mac = new GMac(new GcmBlockCipher(new AesFastEngine()), size);
mac.Init(new ParametersWithIV(null, new byte[16]));
Fail("Expected failure for illegal mac size " + size);
}
catch (ArgumentException e)
{
if (!e.Message.StartsWith("Invalid value for MAC size"))
{
Fail("Illegal mac size failed with unexpected message");
}
}
}