MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.io.FileInputStream;
import java.math.BigInteger;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.security.cert.X509CertSelector;
import java.util.Calendar;
import java.util.Date;

public class MainClass {
    public static void main(String args[]) throws Exception {
        X509CertSelector selec = new X509CertSelector();
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        FileInputStream in = new FileInputStream(args[0]);
        Certificate c = cf.generateCertificate(in);
        System.out.println(selec.match(c));
        selec.setIssuer("CN=Peter,OU=Network Center," + "O=University,L=ZB,ST=Vancouver,C=CN");

        System.out.println(selec.match(c));

        Calendar cld = Calendar.getInstance();
        int year = Integer.parseInt(args[1]);
        int month = Integer.parseInt(args[2]) - 1;
        int day = Integer.parseInt(args[3]);
        cld.set(year, month, day);
        Date d = cld.getTime();
        selec.setCertificateValid(d);

        System.out.println(selec.match(c));
        BigInteger sn = new BigInteger("1039056963");
        selec.setSerialNumber(sn);

        System.out.println(selec.match(c));
    }
}