Trusted identity attribute service method with privacy protection in cyberspace

With the cyber society booming rapidly, cyber trusted service and privacy protection have been more and more focused on. The paper presents a new method for user identity attribute service in cyberspace, and the method based on the service model of multilevel cyber identity management provides user identity attribute service for cyber applications, and implements the descriptive mechanism of multilevel privacy protection policy, which permits users, identity service provider, and identity service relying party to prescribe attribute privacy protection policy, attribute disclosure policy and attribute request policy individually. As a result, security of web applications along with user privacy is protected by providing fine-grained access control with user identity attribute and strong authentication services.