Java examples on org.jasypt

• How do I use BasicTextEncryptor for encrypting and decrypting string information?
• How do I validate user's password with PasswordEncryptor?
• How do I encrypt or decrypt bytes information using StandardPBEByteEncryptor?
• How do I create a message digest?

How do I encrypt or decrypt bytes information using StandardPBEByteEncryptor?

This code demonstrate how to use the StandardPBEByteEncryptor class to encrypt and decrypt bytes information.

package org.kodejava.example.jasypt;

import org.jasypt.encryption.pbe.StandardPBEByteEncryptor;

import java.util.Arrays;

public class ByteEncryptorDemo {
    public static void main(String[] args) {
        String text = "The quick brown fox jumps over the lazy dog";
        System.out.println("Text      = " + Arrays.toString(text.getBytes()));

        StandardPBEByteEncryptor encryptor = new StandardPBEByteEncryptor();
        encryptor.setAlgorithm("PBEWithMD5AndDES");
        encryptor.setPassword("HelloWorld");

        byte[] encrypted = encryptor.encrypt(text.getBytes());
        System.out.println("Encrypted = " + Arrays.toString(encrypted));

        byte[] original = encryptor.decrypt(encrypted);
        System.out.println("Original  = " + Arrays.toString(original));
    }
}

The result of our code are:

Text      = [84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103]
Encrypted = [-37, -99, 19, 33, -62, 17, -60, 32, 21, 84, 48, 76, -93, 18, 89, 36, -51, -121, -92, 66, -3, -22, 104, 103, 30, -25, -72, 13, 103, -30, 105, -22, -127, -41, 23, -79, 0, -71, -40, -102, 26, 9, 84, -124, 3, -19, 120, -23, 44, 41, -46, 68, -55, -97, -84, 102]
Original  = [84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103]