Multiparty Authorization Framework for Data Sharing in Online Social Networks

Abstract

Abstract. Online social networks (OSNs) have experienced tremendous growth in recent years and become a de facto portal for hundreds of millions of Internet users. These OSNs offer attractive means for digital social interactions and information sharing, but also raise a number of security and privacy issues. While OSNs allow users to restrict access to shared data, they currently do not provide effective mechanisms to enforce privacy concerns over data associated with multiple users. In this paper, we propose a multiparty authorization framework that enables collaborative management of shared data in OSNs. An access control model is formulated to capture the essence of multiparty authorization requirements. We also demonstrate the applicability of our approach by implementing a proof-of-concept prototype hosted in Facebook.

Multiparty Access Control of Ciphertext Sharing in Cloud-Based Online Social Networks

“…If a requestor wants to gain the right of access resources, he needs to meet the requirement of users' relationship, and have a certain correlation with the resource's content. On the other hand, in order to meet the multiparty access control requirement, Hu et al proposed an approach to enable the protection of shared data associated with multiple users in OSNs [1]. This scheme formulates an access control model to capture the essence of multiparty authorization requirements, along with a multiparty policy sp ecification scheme and a policy enforcement mechanism.…”

“…The online social networks (OSNs) provide each user with a virtual space where the user can post data like photos and videos, and share with his friends and group members [1]. The popularity of OSNs is obtained from the convenience as well as efficiency of data dissemination and sharing based on the relationships built among users [2].…”

Game theoretic analysis of multiparty access control in online social networks

“…The need of collaborative management for data sharing, especially photo sharing, in OSNs has been addressed by some recent research [8,20,25,34,36]. Also, game theory as a rich set of mathematical tools has been used to model and analyze the interactions of agents in security and privacy problems [5,6,13,18,19,29,32,33].…”

Detecting and resolving privacy conflicts for collaborative data sharing in online social networks

“…Several recent work [7,15,18,22,24] recognized the need of joint management for data sharing, especially photo sharing, in OSNs. In particular, Squicciarini et al [22] proposed a solution for collective privacy management for photo sharing in OSNs.…”

“…Despite the fact that OSNs currently provide privacy control mechanisms allowing users to regulate access to information contained in their own spaces, users, unfortunately, have no control over data residing outside their spaces [7,15,21,22,24]. For instance, if a user posts a comment in a friend's space, s/he cannot specify which users can view the comment.…”