Section: New Results

A Trust-Based Formal Delegation Framework for Enterprise Social Networks

Participants : Ahmed Bouchami, Olivier Perrin [contact] .

Collaborative environments raise major challenges to secure them. These challenges increase when it comes to the domain of Enterprise Social Networks (ESNs) as ESNs aim to incorporate the social technologies in an organization setup while asserting greater control of information security. In this context, the security challenges have taken a new shape as an ESN may not be limited to the boundaries of a single organization and users from different organizations can collaborate in a common federated environment.

We address the problem of the authorization’s delegation in federated collaborative environments like ESNs with an approach based on event-calculus, a temporal logic programming formalism. While the traditional approaches are either user-centric or organization-centric, the approach bridges the gap between these two views and the proposed framework enhances the delegation scheme. We have proposed a behavior monitoring mechanism, that permits to assess principals’ trust level within the federated collaborative environment [10] .