code: public DERObject toASN1Object()
      {
          ASN1EncodableVector  v = new ASN1EncodableVector();
  
          v.add(new DERInteger(getModulus()));
          v.add(new DERInteger(getPublicExponent()));
  
          return new DERSequence(v);
      }
docs: This outputs the key in PKCS1v2 format.
  <pre>
  RSAPublicKey ::= SEQUENCE {
  modulus INTEGER, -- n
  publicExponent INTEGER, -- e
  }
  </pre>
  <p>