1. Search for a cipher algorithms you would like to use in an application for encrypting and decrypting text messages. List your chosen algorithms.

1.blowfish

2. For the listed algorithms, write a java program to read some text message, encrypt the message, and display the result.

3

. For the listed algorithms, write a java program to read some encrypted message, decrypt the message, and display the result.

hint(it should be read from the user )

this is the question up and I want you to fix my code

in java language

import javax.crypto.Cipher;

import javax.crypto.KeyGenerator;

import javax.crypto.SecretKey;

import javax.crypto.spec.SecretKeySpec;

import java.util.Scanner;

public class Main {

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

Scanner myObj = new Scanner (System.in);

System.out.println("choose a number for 1-encrypt 2-decrypt");

int encrypting = myObj .nextInt () ;

KeyGenerator keyGen = KeyGenerator.getInstance("Blowfish");

keyGen.init(128); // 128-bit key size

SecretKey secretKey = keyGen.generateKey();

SecretKeySpec secretKeySpec = new SecretKeySpec(secretKey.getEncoded(), "Blowfish");

if (encrypting==1){

System.out.println("Enter your letter you want to encrypting");

Scanner myOb = new Scanner (System.in);

String message = myOb.nextLine() ;

Cipher cipher = Cipher.getInstance("Blowfish");

cipher.init(Cipher.ENCRYPT_MODE, secretKey);

// Encrypt the message and display the result

byte[] encryptedMessage = cipher.doFinal(message.getBytes());

System.out.println("Encrypted Message: " + new String(encryptedMessage));}

//new

if (encrypting==2){

System.out.println("Enter your letter you want to decryption");

Scanner kb = new Scanner (System.in);

String messageDec = kb.nextLine() ;

byte[] encryptedMessage = // encrypted message to decrypt

Cipher cipher = Cipher.getInstance("Blowfish");

cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);

// Decrypt the message and display the result

byte[] decryptedMessage = cipher.doFinal(messageDec.getBytes());

System.out.println("Decrypted Message: " + new String(decryptedMessage));

}

}

}