SGFS: Secure, Efficient and Policy-based Global File Sharing

This paper presents SGFS a secure global file sharing system. SGFS is designed based on important design requirements that include: efficiency for high performance data access, flexibility of cross-domain file sharing without administrative interference, support for flexible policies and off-the-shelf policy managers, ability to be deployed in diverse environments, ease of management and low administrative overheads. Unlike existing systems that satisfy a proper subset of these requirements, SGFS is designed to satisfy all of these requirements. In this paper, we present the architecture and design of SGFS. We illustrate how these requirements have influenced our design and present the implementation of the SGFS user-space prototype.