/**
 * RSA test driver
 */

import java.math.BigInteger;

public class Driver
{
    public static void main(String[] args) {
      
      System.out.println("Simple Implementation of the RSA cryptosystem");
      int N = 100; // number of bits to use for key values
      
      RSA key = new RSA(N);
      System.out.println(key);
    
      //// create message by converting string to integer
      String s = "hello alice";
      byte[] bytes = s.getBytes();
      BigInteger message = new BigInteger(bytes);
      System.out.println("message   = " + message);
      BigInteger encrypt = key.encrypt(message);
      System.out.println("encrpyted = " + encrypt);     
      
      // now decrypt and reform the string:
      BigInteger decrypt = key.decrypt(encrypt);            
      byte[] decryptBytes = decrypt.toByteArray();
      String ds = new String(decryptBytes);
      System.out.println("decrypted = " + ds);
    }
}