encipher.java

RSA编码与解码

/**
 * 
 */
package RSA;

import RSA.Cipher;
import java.math.BigInteger;


/**
 * @author Administrator
 *
 */
public class Encipher extends Cipher{
	
	public void init(BigInteger primep, BigInteger primeq, BigInteger publickey)
	{
		this.PublicKey = publickey;
		this.PrimeP = primep;
		this.PrimeQ = primeq;
		SetThetaN();
		SetPrimeN();
	}
	
	public BigInteger ComputeEncipherValue(BigInteger plaintMessage)
	{
		BigInteger plaintmessage = plaintMessage;
		return plaintmessage.modPow(this.PublicKey, this.PrimeN);
	}
}