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With more and more improvement in the level of digital information technology , corporate , government , schools and research institutions and other departments of the various application systems , and increasingly large . Each application systems to establish their own separate user management module and authentication module , resulting in user management and authentication of the entire system can not be unified . To accurately remember in multiple different security domain user name and password , to repeat the authentication of authorized services , complex operation , and there is a certain security risk . Users from multiple security domains in the traditional mode network collaboration , management , joint services , is a problem faced by the service provider . Unified authentication system (UnifyIdentity Authentication System) research that is based on this background . This paper focuses on the authentication mechanism in the open network environment . By a detailed analysis of the Kerberos protocol defects , visual cryptography technology into the Kerberos protocol , the use of the Kerberos protocol authentication method based on visual cryptography technology improvements , combined with driver technology , system service design technology , hardware encryption technology (USBKey ), and Web technologies , design and implementation of a simple , reliable , and scalable authentication platform . Finally, detailed user registration, storage and management of user information , unified identity authentication , management of USBKey , auditing authentication platform module implementations . The practical application of the Kerberos protocol -based of visual cryptography technology improved safety and reliability , but also based on the improved protocol platform operation is simple , easy to expand , the cross-platform capability can be very easy to achieve seamless connection with the application system platform .
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