Access Control in Peer-to-Peer Collaborative Systems

Authors:
Yu Zhang;Xianxian Li;Jinpeng Huai;Yunhao Liu
Affiliations:
Beihang University;Beihang University;Beihang University;Hong Kong University of Science and Technology
Venue:
ICDCSW '05 Proceedings of the First International Workshop on Mobility in Peer-to-Peer Systems - Volume 08
Year:
2005

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Abstract

As an emerging model of communication and computation, peer-to-peer networking represents a fully distributed, cooperative network design, and has recently gained significant acceptance. Peer groups share the properties of peer-to-peer overlay network, including full decentralization, symmetric abilities, and dynamism, which make security problems more complicated. In this paper, we propose a fine-grained and attribute-based access control framework forpeer-to-peer systems. This design employs a novel policy model which extends role-based trust management language RT to satisfy security requirements of peer groups. Intend for a pure decentralized model without centralized server, our framework presents distributed delegation authorization mechanism which could avoid single point of failure. We also introduce our implementation experience.