Abstract
Online Social Networks (OSNs) have attracted a phenomenal number of users for sharing data and socialization recently. However, existing OSNs are facing security and privacy issues. OSNs possess plenty of user data, which might be leaked either by OSN providers or other OSN users if unsophisticated security mechanisms are used. Besides, improper or complicated privacy settings offered by some OSNs prohibits users to thoroughly protect their privacy. In this paper, we propose a secure OSN framework with an efficient access control mechanism for preserving user data privacy. Besides, secure socialization that allows finding friends without exposing personal information is also incorporated in the proposed OSN. We show that the proposed OSN is more practical and efficient in comparison to existing OSN security frameworks.