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.cert.bc;

import java.io.IOException;
import java.math.BigInteger;
import java.util.Date;

import org.bouncycastle.asn1.x500.X500Name;
import org.bouncycastle.cert.X509v1CertificateBuilder;
import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
import org.bouncycastle.crypto.util.SubjectPublicKeyInfoFactory;


JCA helper class to allow BC lightweight objects to be used in the construction of a Version 1 certificate.

/**
 * JCA helper class to allow BC lightweight objects to be used in the construction of a Version 1 certificate.
 */
public class BcX509v1CertificateBuilder
    extends X509v1CertificateBuilder
{
    
Initialise the builder using an AsymmetricKeyParameter.

Params:
  • issuer – X500Name representing the issuer of this certificate.
  • serial – the serial number for the certificate.
  • notBefore – date before which the certificate is not valid.
  • notAfter – date after which the certificate is not valid.
  • subject – X500Name representing the subject of this certificate.
  • publicKey – the public key to be associated with the certificate.
/**
     * Initialise the builder using an AsymmetricKeyParameter.
     *
     * @param issuer X500Name representing the issuer of this certificate.
     * @param serial the serial number for the certificate.
     * @param notBefore date before which the certificate is not valid.
     * @param notAfter date after which the certificate is not valid.
     * @param subject X500Name representing the subject of this certificate.
     * @param publicKey the public key to be associated with the certificate.
     */
    public BcX509v1CertificateBuilder(X500Name issuer, BigInteger serial, Date notBefore, Date notAfter, X500Name subject, AsymmetricKeyParameter publicKey)
        throws IOException
    {
        super(issuer, serial, notBefore, notAfter, subject, SubjectPublicKeyInfoFactory.createSubjectPublicKeyInfo(publicKey));
    }
}