public void ShouldCorrectlyDeriveKey(MacModes mac, CounterLocations ctrLocation, int rLen, int outLen, string kI, string fixedInput, string kO)
{
var keyIn = new BitString(kI);
var fixedInputData = new BitString(fixedInput);
var expectedKey = new BitString(kO);
var kdf = _factory.GetKdfInstance(KdfModes.Pipeline, mac, ctrLocation, rLen);
var result = kdf.DeriveKey(keyIn, fixedInputData, outLen);
Assert.IsTrue(result.Success, result.ErrorMessage);
Assert.AreEqual(expectedKey, result.DerivedKey);
}
public IKdf GetKdfInstance(KdfModes kdfMode, MacModes macMode, CounterLocations counterLocation, int counterLength = 0)
{
var mac = GetMacInstance(macMode);
switch (kdfMode)
{
case KdfModes.Counter:
return(new CounterKdf(mac, counterLocation, counterLength));
case KdfModes.Feedback:
return(new FeedbackKdf(mac, counterLocation, counterLength));
case KdfModes.Pipeline:
return(new PipelineKdf(mac, counterLocation, counterLength));
default:
throw new ArgumentException("KDF Mode not supported");
}
}
public FeedbackKdf(IMac mac, CounterLocations counterLocation, int counterLength = 0) : base(mac)
{
_counterLocation = counterLocation;
_counterLength = counterLength;
}
public PipelineKdf(IMac mac, CounterLocations counterLocation, int counterLength) : base(mac)
{
_counterLocation = counterLocation;
_counterLength = counterLength;
}
public void ShouldCorrectlyDeriveKeyNoTestNameMessingUpTestRunner(string label, MacModes mac, CounterLocations ctrLocation, int rLen, int outLen, string kI, string fixedInput, string kO, int breakLocation = 0)
{
var keyIn = new BitString(kI);
var fixedInputData = new BitString(fixedInput);
var expectedKey = new BitString(kO);
var kdf = _factory.GetKdfInstance(KdfModes.Counter, mac, ctrLocation, rLen);
var result = kdf.DeriveKey(keyIn, fixedInputData, outLen, breakLocation: breakLocation);
Assert.IsTrue(result.Success, result.ErrorMessage);
Assert.AreEqual(expectedKey, result.DerivedKey);
}
