Collaborative Access Control Model for Online Social Networks

Online Social Network (OSN) has become a popular and de facto portal for digital information sharing. Preserving information privacy is indispensable in such applications, as the shared information would be sensitive. The issue becomes more challenging due to participation of multiple parties on the shared resources or data. In this paper, we propose an effective access control technique to allow or disallow the shared resources considering authorization requirements of all the multiple parties. A logical representation of the proposed access control technique is prepared to analyse the privacy risk.