public void ShouldThrowWithInvalidKeyLengthCmac(KeyAgreementMacType macType, int keyLength)
{
var p = new KeyConfirmationParameters(0, 0, 0, macType, keyLength,
0, null, null, null, null, null);
Assert.Throws(typeof(ArgumentException), () => _subject.GetInstance(p));
}
public void ShouldReturnCorrectMac(
int keySize, int tagLength,
BitString serverId, BitString iutId,
BitString serverPublicKey, BitString iutPublicKey,
BitString derivedKeyingMaterial,
BitString expectedMacData, BitString expectedTag)
{
var cmac = _cmacFactory.GetCmacInstance(CmacTypes.AES128); // doesn't matter for scope of testing this, as long as AES
var p = new KeyConfirmationParameters(
KeyAgreementRole.InitiatorPartyU,
KeyConfirmationRole.Provider,
KeyConfirmationDirection.Bilateral,
KeyAgreementMacType.CmacAes, // note this doesn't matter for the scope of this test
keySize,
tagLength,
iutId,
serverId,
iutPublicKey,
serverPublicKey,
derivedKeyingMaterial
);
_subject = new KeyConfirmationCmac(new KeyConfirmationMacDataCreator(), p, cmac);
var result = _subject.ComputeMac();
Assert.That(result.Success);
Assert.AreEqual(expectedMacData.ToHex(), result.MacData.ToHex(), nameof(expectedMacData));
Assert.AreEqual(expectedTag.ToHex(), result.Mac.ToHex(), nameof(expectedTag));
}
public void ShouldReturnCorrectMac(
int keySize, int tagLength,
BitString serverId, BitString iutId,
BitString nonce,
BitString serverPublicKey, BitString iutPublicKey,
BitString derivedKeyingMaterial,
BitString expectedMacData, BitString expectedTag)
{
var ccm = new CcmBlockCipher(new AesEngine(), new ModeBlockCipherFactory(), new AES_CCMInternals());
var p = new KeyConfirmationParameters(
KeyAgreementRole.InitiatorPartyU,
KeyConfirmationRole.Provider,
KeyConfirmationDirection.Bilateral,
KeyAgreementMacType.AesCcm, // note this doesn't matter for the scope of this test
keySize,
tagLength,
iutId,
serverId,
iutPublicKey,
serverPublicKey,
derivedKeyingMaterial,
nonce
);
_subject = new KeyConfirmationAesCcm(new KeyConfirmationMacDataCreator(), p, ccm);
var result = _subject.ComputeMac();
Assert.That(result.Success);
Assert.AreEqual(expectedMacData.ToHex(), result.MacData.ToHex(), nameof(expectedMacData));
Assert.AreEqual(expectedTag.ToHex(), result.Mac.ToHex(), nameof(expectedTag));
}
public void ShouldReturnCorrectMac(
string label,
KeyAgreementRole thisKaRole,
KeyConfirmationRole thisKcRole,
KeyConfirmationDirection thisKcType,
BitString thisId,
BitString otherId,
BitString thisPublicKey,
BitString otherPublicKey,
BitString expectedMacData)
{
var p = new KeyConfirmationParameters(
thisKaRole,
thisKcRole,
thisKcType,
KeyAgreementMacType.CmacAes,
0,
0,
thisId,
otherId,
thisPublicKey,
otherPublicKey,
new BitString(0)
);
_subject = new FakeKeyConfirmationBase(new KeyConfirmationMacDataCreator(), p);
var result = _subject.GetMacData();
Assert.AreEqual(expectedMacData.ToHex(), result.ToHex());
}
public void ShouldReturnCorrectInstance(KeyAgreementMacType macType, int keyLength, Type expectedType)
{
IKeyConfirmation result = null;
if (macType == KeyAgreementMacType.AesCcm)
{
KeyConfirmationParameters p = new KeyConfirmationParameters(0, 0, 0, macType, keyLength,
0, null, null, null, null, null, new BitString(1));
result = _subject.GetInstance(p);
}
else
{
KeyConfirmationParameters p = new KeyConfirmationParameters(0, 0, 0, macType, keyLength,
0, null, null, null, null, null);
result = _subject.GetInstance(p);
}
Assert.IsInstanceOf(expectedType, result);
}
