http://www.bouncycastle.org/java.html: The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.pkcs.bc;

import java.io.IOException;

import org.bouncycastle.asn1.x500.X500Name;
import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
import org.bouncycastle.crypto.util.SubjectPublicKeyInfoFactory;
import org.bouncycastle.pkcs.PKCS10CertificationRequestBuilder;


Extension of the PKCS#10 builder to support AsymmetricKey objects.

/**
 * Extension of the PKCS#10 builder to support AsymmetricKey objects.
 */
public class BcPKCS10CertificationRequestBuilder
    extends PKCS10CertificationRequestBuilder
{
    
Create a PKCS#10 builder for the passed in subject and JCA public key.

Params:
  • subject – an X500Name containing the subject associated with the request we are building.
  • publicKey – a JCA public key that is to be associated with the request we are building.
Throws:
  • IOException – if there is a problem encoding the public key.
/**
     * Create a PKCS#10 builder for the passed in subject and JCA public key.
     *
     * @param subject an X500Name containing the subject associated with the request we are building.
     * @param publicKey a JCA public key that is to be associated with the request we are building.
     * @throws IOException if there is a problem encoding the public key.
     */
    public BcPKCS10CertificationRequestBuilder(X500Name subject, AsymmetricKeyParameter publicKey)
        throws IOException
    {
        super(subject, SubjectPublicKeyInfoFactory.createSubjectPublicKeyInfo(publicKey));
    }
}