| public Init ( ICipherParameters parameters ) : void | ||
| parameters | ICipherParameters | |
| return | void | |
public override void PerformTest()
{
IBlockCipher cipher = new AesFastEngine();
IMac mac = new CMac(cipher, 128);
//128 bytes key
KeyParameter key = new KeyParameter(keyBytes128);
// 0 bytes message - 128 bytes key
mac.Init(key);
mac.BlockUpdate(input0, 0, input0.Length);
byte[] outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k128_m0))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k128_m0) + " got "
+ Hex.ToHexString(outBytes));
}
// 16 bytes message - 128 bytes key
mac.Init(key);
mac.BlockUpdate(input16, 0, input16.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k128_m16))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k128_m16) + " got "
+ Hex.ToHexString(outBytes));
}
// 40 bytes message - 128 bytes key
mac.Init(key);
mac.BlockUpdate(input40, 0, input40.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k128_m40))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k128_m40) + " got "
+ Hex.ToHexString(outBytes));
}
// 64 bytes message - 128 bytes key
mac.Init(key);
mac.BlockUpdate(input64, 0, input64.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k128_m64))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k128_m64) + " got "
+ Hex.ToHexString(outBytes));
}
//192 bytes key
key = new KeyParameter(keyBytes192);
// 0 bytes message - 192 bytes key
mac.Init(key);
mac.BlockUpdate(input0, 0, input0.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k192_m0))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k192_m0) + " got "
+ Hex.ToHexString(outBytes));
}
// 16 bytes message - 192 bytes key
mac.Init(key);
mac.BlockUpdate(input16, 0, input16.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k192_m16))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k192_m16) + " got "
+ Hex.ToHexString(outBytes));
}
// 40 bytes message - 192 bytes key
mac.Init(key);
mac.BlockUpdate(input40, 0, input40.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k192_m40))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k192_m40) + " got "
+ Hex.ToHexString(outBytes));
}
// 64 bytes message - 192 bytes key
mac.Init(key);
mac.BlockUpdate(input64, 0, input64.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k192_m64))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k192_m64) + " got "
+ Hex.ToHexString(outBytes));
}
//256 bytes key
key = new KeyParameter(keyBytes256);
// 0 bytes message - 256 bytes key
mac.Init(key);
mac.BlockUpdate(input0, 0, input0.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k256_m0))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k256_m0) + " got "
+ Hex.ToHexString(outBytes));
}
// 16 bytes message - 256 bytes key
mac.Init(key);
mac.BlockUpdate(input16, 0, input16.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k256_m16))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k256_m16) + " got "
+ Hex.ToHexString(outBytes));
}
// 40 bytes message - 256 bytes key
mac.Init(key);
mac.BlockUpdate(input40, 0, input40.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k256_m40))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k256_m40) + " got "
+ Hex.ToHexString(outBytes));
}
// 64 bytes message - 256 bytes key
mac.Init(key);
mac.BlockUpdate(input64, 0, input64.Length);
outBytes = new byte[16];
mac.DoFinal(outBytes, 0);
if (!AreEqual(outBytes, output_k256_m64))
{
Fail("Failed - expected "
+ Hex.ToHexString(output_k256_m64) + " got "
+ Hex.ToHexString(outBytes));
}
}
private void TestExceptions()
{
try
{
CMac mac = new CMac(new AesEngine());
mac.Init(new ParametersWithIV(new KeyParameter(new byte[16]), new byte[16]));
Fail("CMac does not accept IV");
}
catch(ArgumentException)
{
// Expected
}
}
