Application Of Graphical Password To Entrance Guard System

Today, with advances in technology, Entrance Guard also has developed rapidly. Themain purpose of Entrance Guard System is to prevent loss and crime，therefore it must havehigh reliability and security. The recognition unit is an important part of the Entrance GuardSystem. There are many identification methods, including Induction Card, BiometricIdentification, etc. With human’s demand turns more various，the requirements to EntranceGuard System are constantly increasing. In recent years, as a new Identity Authenticationmodel， Graphical Password gets more and more extensive attention and it has become oneof the research hotspots in the Identity Authentication field. Every Entrance Guard Systemhas its own advantages and its shortcomings，such as, misrepresented, coercion or shouldersurfing. The combination of Graphical Password and Entrance Guard System can overcomethese shortcomings. It becomes a new attempt of Entrance Guard System.After the technologies of Graphical Password and Entrance Guard System are analyzed,integrates Graphical Password and Entrance Guard System to a new system and its securityand efficiency are analyzed. Firstly, draws on the lock screen login system of GraphicalPassword Application on mobile terminal like phones and tablet computers. A new passwordmechanism based on user logical choice graphical count is proposed. This mechanism is agroup of random graphics on screen. The user selects any graphics randomly after logicjudgment. The system counts the selected graphics and matches the count for authentication.Secondly, the implementation of Logical Choice Graphics Count password mechanism isintroduced and the primary algorithms, data structures, storage methods, simulation testmethods are described. The performance is analyzed. Our analysis showed that the newsystem is easier to remember，more larger keys pace，more interesting to use， moreeffective，more security and practical.