Java tutorial
import javax.crypto.Cipher; import javax.crypto.SecretKey; import javax.crypto.spec.SecretKeySpec; public class MainClass { public static void main(String[] args) throws Exception { byte[] data = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }; SecretKey key64 = new SecretKeySpec(new byte[] { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }, "Blowfish"); Cipher c = Cipher.getInstance("Blowfish/ECB/NoPadding"); c.init(Cipher.ENCRYPT_MODE, key64); c.doFinal(data); } }