import javax.crypto.*;
import java.util.Scanner;

public class TEST {

    public static void main(String[] args) {

        try {

            Scanner scan = new Scanner(System.in);

            System.out.print("Enter the password or message: ");

            String input = scan.nextLine();

            KeyGenerator keyGen = KeyGenerator.getInstance("DES");
            SecretKey desKey = keyGen.generateKey();

            Cipher desCipher = Cipher.getInstance("DES/ECB/PKCS5Padding");

            desCipher.init(Cipher.ENCRYPT_MODE, desKey);

            byte[] clearText = input.getBytes();
            byte[] cipherText = desCipher.doFinal(clearText);

            desCipher.init(Cipher.DECRYPT_MODE, desKey);

            byte[] clearText1 = desCipher.doFinal(cipherText);

            System.out.println("\n\nCLEAR TEXT: \n");

            for(int i = 0; i < clearText.length; i++) {

                System.out.print(clearText[i]);

            }

            System.out.println("\n\nCIPHER TEXT: \n");

            for(int j = 0; j < cipherText.length; j++) {

                System.out.print(cipherText[j]);

            }

            System.out.println("\n\nDECRYPTED TEXT: \n");

            for(int k = 0; k < clearText1.length; k++) {

                System.out.print(clearText1[k]);

            }

            System.out.println();

        } catch (Exception ex) {

            ex.printStackTrace();

        }

    }

}