摘要：
近期，闲来无事，得到一款GP的poct设备研究了下，该设备型号：Getein1100 ，串口进行通信，但是串口连接有所限制，于是找到一款数传模块，将串口转网口，使用pc进行通信抓包分析，如下： 在此可以看到几个眼熟的有意义的数据，仅仅这样分析还不够，根据协议介绍，其中会有校验码的计算方式，命令类型及 阅读全文
It's not who you are underneath, it's what you do that defines you
Brick walls are there for a reason :they let us prove how badly we want things
It's not who you are underneath, it's what you do that defines you
Brick walls are there for a reason :they let us prove how badly we want things