Here you can find the source of desEncodeECB(byte[] key, byte[] data)
public static byte[] desEncodeECB(byte[] key, byte[] data) throws Exception
//package com.java2s; import java.security.Key; import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESedeKeySpec; public class Main { public static byte[] desEncodeECB(byte[] key, byte[] data) throws Exception { Key deskey = null;//from w ww.j a v a 2 s.co m DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory .getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/ECB/NoPadding"); cipher.init(Cipher.ENCRYPT_MODE, deskey); byte[] bOut = cipher.doFinal(data); return bOut; } }