public static SignerIdentifier Decode(AsnReader reader, bool validateEmpty = true)
{
/* SignerIdentifier ::= CHOICE {
* issuerAndSerialNumber IssuerAndSerialNumber,
* subjectKeyIdentifier [0] SubjectKeyIdentifier } */
var tag = reader.PeekTag();
if (tag.HasSameClassAndValue(Asn1Tag.Sequence))
{
var result = new SignerIdentifier()
{
IssuerAndSerialNumber = IssuerAndSerialNumber.Decode(reader),
};
if (validateEmpty)
{
reader.ThrowIfNotEmpty();
}
return(result);
}
if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
var result = new SignerIdentifier()
{
SubjectKeyIdentifier = reader.ReadPrimitiveOrNotOctetString(tag),
};
if (validateEmpty)
{
reader.ThrowIfNotEmpty();
}
return(result);
}
throw new CryptographicException();
}