private Asn1Object BuildObject(
int tag,
int tagNo,
int length)
{
bool isConstructed = (tag & Asn1Tags.Constructed) != 0;
DefiniteLengthInputStream defIn = new DefiniteLengthInputStream(this, length);
if ((tag & Asn1Tags.Application) != 0)
{
return new DerApplicationSpecific(isConstructed, tagNo, defIn.ToArray());
}
if ((tag & Asn1Tags.Tagged) != 0)
{
return new Asn1StreamParser(defIn).ReadTaggedObject(isConstructed, tagNo);
}
if (isConstructed)
{
// TODO There are other tags that may be constructed (e.g. BitString)
switch (tagNo)
{
case Asn1Tags.OctetString:
//
// yes, people actually do this...
//
return new BerOctetString(BuildDerEncodableVector(defIn));
case Asn1Tags.Sequence:
return CreateDerSequence(defIn);
case Asn1Tags.Set:
return CreateDerSet(defIn);
case Asn1Tags.External:
return new DerExternal(BuildDerEncodableVector(defIn));
default:
return new DerUnknownTag(true, tagNo, defIn.ToArray());
}
}
return CreatePrimitiveDerObject(tagNo, defIn.ToArray());
}