/// <inheritdoc />
protected override bool KeyValidityChecks(OtherPartySharedInformation <FfcDomainParameters, FfcKeyPair> otherPartyInformation)
{
try
{
// When KeyPairGen or FullVal, check the static public key
if (SchemeParameters.KasAssurances.HasFlag(KasAssurance.KeyPairGen) ||
SchemeParameters.KasAssurances.HasFlag(KasAssurance.FullVal) &&
StaticKeyPair != null)
{
KeyValidationHelper.PerformFfcPublicKeyValidation(
DomainParameters.P,
DomainParameters.Q,
StaticKeyPair.PublicKeyY,
true
);
}
// When fullval, and the other party provides a static public key
if (SchemeParameters.KasAssurances.HasFlag(KasAssurance.FullVal) &&
otherPartyInformation.StaticPublicKey != null)
{
KeyValidationHelper.PerformFfcPublicKeyValidation(
DomainParameters.P,
DomainParameters.Q,
otherPartyInformation.StaticPublicKey.PublicKeyY,
true
);
}
// When fullval, and the other party provides a ephemeral public key
if (SchemeParameters.KasAssurances.HasFlag(KasAssurance.FullVal) &&
otherPartyInformation.EphemeralPublicKey != null)
{
KeyValidationHelper.PerformFfcPublicKeyValidation(
DomainParameters.P,
DomainParameters.Q,
otherPartyInformation.EphemeralPublicKey.PublicKeyY,
true
);
}
// When using DpVal or KeyRegen, with a static key,
// perform private static key validation
if ((SchemeParameters.KasAssurances.HasFlag(KasAssurance.DpVal) ||
SchemeParameters.KasAssurances.HasFlag(KasAssurance.KeyRegen)) &&
StaticKeyPair != null)
{
if (!Dsa.ValidateKeyPair(DomainParameters, StaticKeyPair).Success)
{
return(false);
}
}
}
catch (Exception)
{
return(false);
}
return(true);
}
public void ShouldReturnExpectedValidationResultEcc(string label, Curve curveEnum, EccPoint publicKey, bool shouldPassValidation)
{
var curve = new EccCurveFactory().GetCurve(curveEnum);
var result = KeyValidationHelper.PerformEccPublicKeyValidation(curve, publicKey, false);
Assert.AreEqual(shouldPassValidation, result);
}