DerEncodeName
extern KMF_RETURN DerEncodeName(KMF_X509_NAME *, KMF_DATA *);
ret = DerEncodeName(&dnname, encodedname);
rv = DerEncodeName(&signed_cert_ptr->certificate.subject, &data);
rv = DerEncodeName(&signed_cert_ptr->certificate.issuer, &data);
rv = DerEncodeName(&x509->certificate.subject, &subject);