With the application scope of the information technology in China becoming wider and wider, and the more and more in-depth application needs of the information, the requirements of the people on the hardware and software in the field of the information technology are also increasing. The network structures are becoming larger and larger, and the applications are becoming more and more complicated, and the data flow is becoming bigger and bigger, which put forward higher requirements on the data security. And with the geometric expansion of the amount of the information, the requirements of the people on the information screening, processing, refining, and displaying and other applications are also becoming higher and higher. Facing the new situation of the informatization in our country, how to use the applied mathematics to solve the problems encountered in the development of China's information technology, and promote the information technology in China to develop to the higher level, is the project to be solved by us.