可以使用硬件指纹作为密钥加密文件，另外，还有EXE捆绑代码......绝对劲！-fingerprint can be used as a hardware encryption key documents, in addition to EXE also bundled code ...... absolute workers!

crc循环冗余码的生成，以及最简单的单工停等协议的模拟。-CRC Cyclic Redundancy Code Generation, as well as the simplest single-workers to stop the simulation, such as agreement.