MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.spec.DSAPrivateKeySpec;
import java.security.spec.DSAPublicKeySpec;
import java.security.spec.InvalidKeySpecException;

public class MainClass {
    public static void main(String[] args) throws NoSuchAlgorithmException, InvalidKeySpecException {
        KeyPairGenerator kpg = KeyPairGenerator.getInstance("DSA");
        kpg.initialize(512);
        KeyPair keys = kpg.genKeyPair();
        PrivateKey priKey = keys.getPrivate();
        PublicKey pubKey = keys.getPublic();
        KeyFactory kf = KeyFactory.getInstance("DSA");
        DSAPrivateKeySpec dsaPriKeySpec = (DSAPrivateKeySpec) kf.getKeySpec(priKey, DSAPrivateKeySpec.class);
        DSAPublicKeySpec dsaPubKeySpec = (DSAPublicKeySpec) kf.getKeySpec(pubKey, DSAPublicKeySpec.class);
        System.out.println("\nDSA Private Key");
        System.out.println("\nx = " + dsaPriKeySpec.getX());
        System.out.println("\nDSA Public Key");
        System.out.println("\ng = " + dsaPubKeySpec.getG());
        System.out.println("\np = " + dsaPubKeySpec.getP());
        System.out.println("\nq = " + dsaPubKeySpec.getQ());
        System.out.println("\ny = " + dsaPubKeySpec.getY());
    }
}
/*
    
DSA Private Key
    
x = 776400661570001590971791637592968309673321751461
    
DSA Public Key
    
g = 5421644057436475141609648488325705128047428394380474376834667300766108262613900542681289080713724597310673074119355136085795982097390670890367185141189796
    
p = 13232376895198612407547930718267435757728527029623408872245156039757713029036368719146452186041204237350521785240337048752071462798273003935646236777459223
    
q = 857393771208094202104259627990318636601332086981
    
y = 9079896982621092847112483863863391775338648287464668946120962630349123906761002084264031103470728516533966483834610830067548970604189069706612392762346323
    
*/