The Safety Payment System Of Dalian CATV

Following the high-speed development of city, an enormous information revolution brings people into the information-intensive society. With the development of Dalian, more and more families can use digital television to see digital programs. Now, digital television can serve different customer with personal programs. On the other hand, the power of digital television is double-direction service, using this kind of technology, we could choose all kinds of programs we like to see. But with the development of digital television how to protect the safety of our count and password become a problem. So it is the urgent needs of us to set up a safe, reliable and high-efficient trading system. For this reason, Dalian CATV cooperates with Dalian branch of CUP in building the Safety Payment System to solve this problem.This paper proceeded to the business and actual demand of the customers' .It introduced the frame structure of this system and concentrated on the trading risk, such as physics environment, application system and safety management, etc. We also put forward the corresponding solution for problems maybe appear in reality use.In actual business, the password was a weak part of being attacked. To solving this problem, author adopted encryption to protect the safety of password. Encryption is one of the key technologies in network security. The system takes advantage of designed DES program to encrypt the password while using. This method avoided the password being released. Because every time the password was given differently, this could keep data be safe and could not be prejudged.