Security Features of User's for Online Social Networks

In recent years Online social networks (OSNs) have practiced fabulous growth and become a genuine portal for hundreds of millions of Internet users. These OSNs provides attractive ways for digital social interactions and information sharing, but also raise a number of security and privacy issues. OSNs allow users to control access to shared data, they currently do not provide any method to enforce privacy concerns over data connected with multiple users. To this end, we suggest an progress to enable the protection of shared data associated with multiple users in OSNs.. We formulate an access control model to capture these sense of multiparty authorization requirements, along with a multiparty policy specification scheme and a policy enforcement mechanism. Besides, we present a logical representation of our access control model that allows us to influence the features of existing logic solvers to perform various analysis tasks on our model. We also discuss a proof-of-concept prototype of our approach as part of an application in Facebook and provide usability study and system evaluation of our method.