该方法用于android手机上的数据加密和解码，加密和解码主要采用的方法是MD5算法-This method is used in the android mobile phone on the data encryption and decode, encryption and decode mainly USES the method is MD5 algorithm

手机音频刷卡器解码程序，square、乐刷等刷卡器的解码算法,16700612@qq.cm-Mobile audio card decoder program, square, brush and other music decoding algorithm swipe card reader