The Research Of Internet-bank Security Trading Authentication System Based On CPK

The development of Internet-bank supports the whole development of e-commerce, the security of Internet has become the key to achieving online trading. Although these technologies are already very skillful, such as public key infrastructure (PKI), certificate authority (CA), Secure Socket Layer (SSL) protocol and Hypertext Transfer Protocol over Secure Socket Layer (HTTPS) and so on, the key is still very important for authentication system in the disorder internet. CPK (Combined Public Key) algorithm generates trillions of keys just at the cost of few resources and creates the conditions for the authentication system transforms into chips.The research objects of this paper are security authentication system and trading system based on Internet-bank, using U-Key authentication technology and composite key technology based on identity has proposed an Internet-bank security trading authentication system based on CPK. The major security features are comparatively analyzed the CPK authentication system and PKI authentication system which is the main authentication system at present, and a security trading authentication model of Internet-bank based on CPK is designed. The structure of the key management system in the whole authentication system is described and the main protocols used in authentication system in detail are analyzed. Using composite key that combined by identity key and random key in the system reduced the linear correlation that between the all private keys. The U-Key embed CPK security chip is introduced and specifically implementation process of the internet-bank security trading authentication system based on CPK is analyzed, and then a comprehensive analysis of the security for the whole trading authentication system is made, it has features of security and availability.