Designing And Realizing Of Network Authentication System Based On Fingerprint Encryption

Network security is a important domain of information security. It has been applied in many field such financial security,defence,electronic business , and it will play a more and more inportmant role in our life .In recently investigation of network security domain, because hack techniques are more and more public, professional,all kinds of attacks become frequently , computer viruses overrun , and network security are more and more inportment. So the research of network security has been a research focus around the world.To solve the problems in the network identity certification,the author study and research the technology of network encryption and fingerprint identification. A project of network identity certification based on fingerprint recognition and encryption is proposed. A protocol is designed. A system of network identity certification based on the protocol is built up. Detailed tasks as follows:●Through researching and anglicizing the algorithm of image post processing, A thinning algorithm is presented and it makes thinning result closer to the fingerprint line centre than the traditional algorithm and it is convenience for minute extraction and matching in later.●To solve the problems of applying current fingerprint recognition to network environment, A protocol based on fingerprint encryption and public key and symmetry encryption is proposed, it is analyzed by BAN logic, and it is rationality, security, availability.●An identity authentication system based on fingerprint recognition and authentication, and encryption is built.The development tools is .net in the system , Microsoft SQL Server 2000 is used as background database for building fingerprint information library. Bases on authentication protocol, communication of C/S can be finished safely, and it ensures that fingerprint data, identity result and other data in flow channel have already been encrypted. So the system becomes safer. Most importantly, the real authentication to human not to object (key, certification, etc) is realized.