A computational economy for grid computing and its implementation in the Nimrod-G resource broker
Future Generation Computer Systems - Grid computing: Towards a new computing infrastructure
HPDC '03 Proceedings of the 12th IEEE International Symposium on High Performance Distributed Computing
Toward a Synergy Between P2P and Grids
IEEE Internet Computing
Policy-Based Access Control in Peer-to-Peer Grid Systems
GRID '05 Proceedings of the 6th IEEE/ACM International Workshop on Grid Computing
Agent Computing and Multi-Agent Systems
Pre-execution security policy assessment of remotely defined BPEL-based grid processes
TrustBus'07 Proceedings of the 4th international conference on Trust, Privacy and Security in Digital Business
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The dynamic, multi-organization nature of large-scale grid computing introduces security issues that must be addressed before grid systems can become widely popular. This paper proposes P2PSLF (Peer-to-Peer Security Layer Framework), a flexible security framework for peer-to-peer based grid computing. P2PSLF provides a wide range of security mechanisms (e.g., authentication, confidentiality, integrity, authorization, and audit), and allows the creation of new ones. It is independent of the overlying application, which enables new systems to be implemented without having to deal with security issues within the application. In addition, the framework is modular and reconfigurable. The set of security requirements to be satisfied in communications is determined per peer, and can be changed without recompiling the application. The framework is exercised using OurGrid, a P2P-based middleware that enables the creation of a multi-organization grid computing environment for the execution of bag-of-tasks applications.