skey_rsa.java

java程序实现的RSA算法

import java.io.*;
import java.security.*;



public class Skey_RSA{
  public static void main(String args[]) throws Exception{
    KeyPairGenerator kpg=KeyPairGenerator.getInstance("RSA");
    kpg.initialize(1024);
    KeyPair kp=kpg.genKeyPair();
    PublicKey pbkey=kp.getPublic();
    PrivateKey prkey=kp.getPrivate();
    
    FileOutputStream f1=new FileOutputStream("Skey_RSA_pub.txt");
    ObjectOutputStream b1=new ObjectOutputStream(f1);
     b1.writeObject(pbkey);

    FileOutputStream f2=new FileOutputStream("Skey_RSA_priv.txt");
    ObjectOutputStream b2=new ObjectOutputStream(f2);
     b2.writeObject(prkey);


  }
}