necessity certificate
1.The article introduces the implementation of certificate system of related overseas products and the development process of certificate system of Chinese products. It demonstrates the necessity of promoting certificate system of railway products in China. The requirement of setting a certificate institution, ensurance of technical support.
2.In this paper, we analyzed the safety problem in the electronic business of the Internet application. Then we put forward the necessity of using CA digital certificate authority system. We introduced the principle, the method and the function ofhow the digitalcertificate authority system solute the safety problem.
