public void OriginalSharedSecretShouldBeModified()
{
var kdfFactory = new KdfOneStepFactory(new NativeShaFactory(), new HmacFactory(new NativeShaFactory()), new KmacFactory(new CSHAKEWrapper()));
var fakeKdfFactory = new FakeKdfFactory_BadZ(kdfFactory);
var originalZ = new BitString("01");
var copyZ = originalZ.GetDeepCopy();
Assert.AreEqual(copyZ, originalZ, "sanity check");
var badKdf = fakeKdfFactory.GetInstance(KdaOneStepAuxFunction.SHA2_D256, true);
badKdf.DeriveKey(originalZ, 256, new BitString(256), null);
Assert.AreNotEqual(copyZ, originalZ, nameof(copyZ));
}
public void Setup()
{
_sha = new Mock <ISha>();
_hmac = new Mock <IHmac>();
_kmac = new Mock <IKmac>();
_shaFactory = new Mock <IShaFactory>();
_shaFactory
.Setup(s => s.GetShaInstance(It.IsAny <HashFunction>()))
.Returns(_sha.Object);
_hmacFactory = new Mock <IHmacFactory>();
_hmacFactory
.Setup(s => s.GetHmacInstance(It.IsAny <HashFunction>()))
.Returns(_hmac.Object);
_kmacFactory = new Mock <IKmacFactory>();
_kmacFactory
.Setup(s => s.GetKmacInstance(It.IsAny <int>(), It.IsAny <bool>()))
.Returns(_kmac.Object);
_subject = new KdfOneStepFactory(_shaFactory.Object, _hmacFactory.Object, _kmacFactory.Object);
}
