internal static void Decode <T>(AsnReader reader, out T decoded)
where T : NegotiationToken, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
Asn1Tag tag = reader.PeekTag();
AsnReader explicitReader;
if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
explicitReader = reader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
NegTokenInit.Decode <NegTokenInit>(explicitReader, out NegTokenInit tmpInitialToken);
decoded.InitialToken = tmpInitialToken;
explicitReader.ThrowIfNotEmpty();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
explicitReader = reader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
NegTokenResp.Decode <NegTokenResp>(explicitReader, out NegTokenResp tmpResponseToken);
decoded.ResponseToken = tmpResponseToken;
explicitReader.ThrowIfNotEmpty();
}
else
{
throw new CryptographicException();
}
}
public NegotiateContextToken(Asn1Element sequence, string mechType)
: base(sequence)
{
if (MechType.NTLM == mechType)
{
NegotiationToken = new NegTokenInit()
{
MechToken = new MechToken().DecodeNtlm(sequence)
};
}
}
protected override void ParseContextSpecific(Asn1Element element)
{
switch (element.ContextSpecificTag)
{
case 0:
NegotiationToken = new NegTokenInit().Decode(element[0]);
break;
case 1:
SubsequentContextToken = new NegTokenTarg().Decode(element[0]);
break;
}
}