Java tutorial
import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.SecretKey; public class MainClass { public static void main(String[] args) throws Exception { KeyGenerator keyGenerator = KeyGenerator.getInstance("Blowfish"); keyGenerator.init(128); SecretKey key = keyGenerator.generateKey(); Cipher cipher = Cipher.getInstance("Blowfish/ECB/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, key); byte[] cipherText = cipher.doFinal("This is a test.".getBytes("UTF8")); System.out.println(new String(cipherText)); } }