Title: A novel group-centric secure information sharing model with trust level considered

Authors: Pei-Wu Li; Wen-Feng Wang

Addresses: School of Information Engineering, Nanchang Institute of Technology, Nanchang 330099, China; Institution of Computer Networks and Information Security, Nanchang Institute of Technology, Nanchang 330099, China ' School of Information Engineering, Nanchang Institute of Technology, Nanchang 330099, China; Institution of Computer Networks and Information Security, Nanchang Institute of Technology, Nanchang 330099, China

Abstract: The traditional approach to information sharing focuses on attaching attributes and policies to an object as it is disseminated from producers to consumers. In contrast, group-centric sharing brings subjects and objects together to facilitate sharing in a group. In such contexts, subject and object join a group without constraints and authorisation is just influenced by the temporal ordering of subject and object in the group. We believe that a subject must get some privileges while joining a group and authorisation is also influenced by the trust level of subject and the security level of object. In this paper, a novel model for Group-Centric Secure Information Sharing (g-SIS) is proposed, which considers both the temporal ordering of group membership and the trust level of subject and security level of object. We also present its temporal logic specification. At last, a usage scenario is given to illustrate the practical application in subscription system.

Keywords: information sharing; trust level; linear temporal logic; group-centric sharing; information security; group membership; subscription systems.

DOI: 10.1504/IJWMC.2015.068635

International Journal of Wireless and Mobile Computing, 2015 Vol.8 No.2, pp.194 - 199

Received: 19 Jul 2014
Accepted: 28 Aug 2014

Published online: 28 Mar 2015 *

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