AnonyAuth: The Demo Of An Trustworthy Anonymous Authentication System Based On Psn And Its Performance Evaluation

With the popularization of smart mobile phones and the various apps running on them,the concept of Pervasive Social Network(PSN)which supports social activities in the heterogeneous networks has made great influence in academia.In PSN,the mobile devices designed as communication nodes are able to interact with other users no matter in isomorphic or heterogeneous networks and the fixed network topology will never be the restrictions.Trust plays an important role for ensuring a secure PSN interaction and anonymous authentication technologies based on trust is the key to secure the PSN users with a privacy-preserved way.Different from secure authentication schemes based on traditional wireless ad hoc network mobile devices,the authentication protocols for PSN should consider the unique characteristics and user requirements in PSN framework.At the same time,most of the anonymous authentication schemes for mobile users only evaluate the security and performance efficiency of the solution from the theoretical analysis software simulation.The lack of implementation and test in the real environment are not persuasive for proving the security and availability of the authentication schemes.As a result,it is difficult for researchers to improve and optimize the performance of these authentication algorithms.Hence,this thesis aims at making a demo called AnonyAuth on Android platforms which simulating the PSN environment and applying the trusted anonymity authentication scheme proposed by Yan et al.AnonyAuth is a chatting system with anonymous authentication functions with leveraging Yan's scheme.It has certain computing capabilities and authentication detection capabilities,and ensures the accuracy of the authentication theory scheme.By using the social chatting as the application scenario,which is popular in intelligent living with mobile phones,the demo can not only demonstrate the effects on applying the anonymous authentication schemes in real environment,but also producing the first hand data on testing performance on computing and communication efficiency on the concrete mobile platforms.In order to achieve the above goals in AnonyAuth,the author of the thesis mainly made the following progresses:1.Selecting the available cryptography tool-kit based on the PSN anonymous trust authentication scheme proposed by Yan et al.by using Java,JPBC and other software writing tools to write the kernel code and API interface for anonymous trust authentication.2.Designing the UI operation interface and API for anonymous authentication logically according to the scheme's requirement and users' habits.The user feels intuitively the anonymized authentication process through the control interface and can chat in realtime.3.Designing a test interface to test the performance of AnonyAuth operating on different platforms and scenarios,including the key generation time,the size of the signature generation time,the message single verification and messages batch verification.4.Conducting a small-scale user survey to collect the feedback information from users who use AnonyAuth and evaluating the acceptability of the anonymous trust authentication system for realization.The survey results have shown AnonyAuth system has good user experience.