An ABAC Model with Trust and Gossiping (ABAC–TG) for Online Social Networks

Adi Swissa, Ehud Gudes

Research output: Contribution to conferencePaperpeer-review

Abstract

In this paper, we propose an attribute-based access control model called ABAC–TG for online social networks (OSNs). This model comprehensively considers user and object attributes and two main social attributes: trust and gossip, which are calculated based on the Ego-node (the user sharing the information) point of view. Each user is evaluated trust and gossip wise by several criteria, such as total number of friends, number of interactions between two users, and more. A new algorithm for calculating user gossiping value by graph clustering is defined, and this gossiping value can also be used for trust calculation. The ABAC model is formally presented, including rules and attribute definitions, and is demonstrated by several use case scenarios. The gossip and trust assessments provide more accurate and viable information-sharing decisions that serve the purpose of more precise and flexible authorizations. This work is novel in two respects. First, we are using trust and gossip as dynamic attribute calculations. And second, we present a new algorithm for calculating the user’s gossip value from the ego user point of view and use it either as part of the trust attribute calculation or as a separate attribute in the ABAC model.

Original languageEnglish
Pages377-392
Number of pages16
DOIs
StatePublished - 1 Jan 2021
Event35th Annual IFIP WG 11.3 Conference on Data and Applications Security and Privacy, DBSec 2021 - Virtual, Online
Duration: 19 Jul 202120 Jul 2021

Conference

Conference35th Annual IFIP WG 11.3 Conference on Data and Applications Security and Privacy, DBSec 2021
CityVirtual, Online
Period19/07/2120/07/21

Keywords

  • Attribute based access control (ABAC)
  • Gossip
  • Online social networks
  • Trust

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science (all)

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