服务器认证签名的程序，通过读取应用服务器的mac地址，网卡等信息通过秘钥加密生成密文，再管理端对应密文生成解密文件，然后将解密文件再应用签名之后应用才可以正常使用。从而限制一个应用多台服务器使用的情况-Server authentication and signature of the program, by reading the MAC address of the application server, cards and other information through a secret key encryption to generate ciphertext, to end management corresponding generating ciphertext to decrypt the file, then it will decrypt files using signature after applications can normal use. Thereby limiting the use of a multi server application