public CertificationRequestInfo(
ASN1Sequence seq)
{
version = (DERInteger)seq.getObjectAt(0);
subject = X509Name.getInstance(seq.getObjectAt(1));
subjectPKInfo = SubjectPublicKeyInfo.getInstance(seq.getObjectAt(2));
//
// some CertificationRequestInfo objects seem to treat this field
// as optional.
//
if (seq.size() > 3)
{
DERTaggedObject tagobj = (DERTaggedObject)seq.getObjectAt(3);
attributes = ASN1Set.getInstance(tagobj, false);
}
if ((subject == null) || (version == null) || (subjectPKInfo == null))
{
throw new ArgumentException("Not all mandatory fields set in CertificationRequestInfo generator.");
}
}