Java Cryptography KeyPairGenerator

import java.security.KeyPair;

import java.security.KeyPairGenerator;

import java.security.PrivateKey;

import java.security.PublicKey;



public class KeyPairGenertor {

   public static void main(String args[]) throws Exception{



      //Creating KeyPair generator object

      KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("DSA");



      //Initializing the KeyPairGenerator

      keyPairGen.initialize(2048);



      //Generating the pair of keys

      KeyPair pair = keyPairGen.generateKeyPair();



      //Getting the private key from the key pair

      PrivateKey privKey = pair.getPrivate();   



      //Getting the public key from the key pair

      PublicKey publicKey = pair.getPublic(); 

      System.out.println("Keys generated");

   }

}