uml diagrams for multy party access control for online social networks

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uml diagrams for multiparty access contol for online social networks and ppt

[jaseela123d]

Online social networking (OSN) has experienced tremendous growth in recent years and has become a de facto portal for hundreds of millions of Internet users. These OSNs offer attractive means for digital social interactions and exchange of information, but they also raise a number of security and privacy issues. While OSNs allow users to restrict access to shared data, they currently do not provide any mechanism to enforce privacy concerns about data associated with multiple users. To this end, we propose an approach to allow the protection of shared data associated with multiple users in OSNs. We formulated an access control model to capture the essence of multi-party authorization requirements, along with a multi-party policy specification scheme and policy enforcement mechanism. In addition, we present a logical representation of our access control model that allows us to take advantage of the characteristics of existing logical solvers to perform various analysis tasks in our model. We also discussed a proof-of-concept prototype of our approach as part of a Facebook application and provide usability study and system evaluation of our method.