With the vigorous development of 3G Internet, e-commerce has ushered in an unprecedented new era. The openness and enjoyment of the network make the information distributed in the network in a high-risk state, and users' personal information is vulnerable to various malicious attacks such as illegal monitoring, illegal copying and illegal access. How to effectively protect personal information has become an important topic in network applications.

Recently, the Ministry of Industry and Information Technology announced the "Twelfth Five-Year Plan" for the development of electronic certification services. According to the plan, by the end of the Twelfth Five-Year Plan, China will form a nationwide network identity authentication service system, basically form a reliable electronic signature authentication system, and make positive progress in exploring the reliability authentication service mode of data messages. The market scale of electronic authentication service will exceed 8 billion yuan. With the popularization and rapid development of network applications, the total market size of electronic certification services in the Twelfth Five-Year Plan will increase by about three times on the basis of the Eleventh Five-Year Plan.

By the end of 20112, China had 330 million IPv4 addresses, 7.75 million domain names and 2.3 million websites. The number of netizens has exceeded 500 million, and the number of online shopping users is1940,000.

In the future, many public services such as social security, medical care and insurance will gradually deepen the application of electronic authentication, and more businesses such as electronic medical records and electronic insurance policies will be widely developed.

During the Twelfth Five-Year Plan period, network applications will be further popularized and deepened in various fields of national economy and society. By 20 15, the annual transaction volume of e-commerce will exceed 18 trillion yuan, and the market potential of electronic authentication service is huge.