* @param issuer
* @param serialno
* @return X509IssuerSerial
*/
public X509IssuerSerial newX509IssuerSerial(String issuer, BigInteger serialno) {
X509IssuerSerial x509IssuerSerial = new X509IssuerSerial();
x509IssuerSerial.setX509IssuerName(issuer);
x509IssuerSerial.setX509SerialNumber(serialno);
return x509IssuerSerial;
}