elgamalprivatekey.java

这是一个用Java实现ElGamal加密解密和签名验证的算法

/*
 * ElGamal PrivateKey Class
 *
 * @author Ge ZHANG (2937207)
 * @login name: gz847
 * @version 1.00 07/08/11*/

import java.math.BigInteger;
import java.security.*;

public class ElGamalPrivateKey extends ElGamalKey implements PrivateKey {
	
     private BigInteger mK;
  
     protected ElGamalPrivateKey(BigInteger k, BigInteger g, BigInteger p) {
     super(g, p);
      mK = k;
     }
     protected BigInteger getK() { return mK; }
     
     public String toString()
     {
     	return  mK + ":" + getG() + ":" + getP();
     }
}