Protected cluster Communication Using AES Contributory Key Agreement
Author(s):
C.Lakshmi Devi, J S Ananda Kumar
Keywords:
Security and protection, fault tolerance, network protocols, distributed systems, group communication, AES, cryptographic protocols.
Abstract
Many collaborative settings such as audio and videoconferencing, white-boards, clustering, and replication applications, require services which are not provided by the current network infrastructure. A typical collaborative application operates as a peer group where members communicate via reliable many-to-many multicast, sometimes requiring reliable ordered message delivery. In some settings, group members must be aware of the exact (agreed upon) group membership. Since group communication systems provide these services, many collaborative applications use group communication systems (GCS) as the underlying messaging infrastructure. Advanced encryption strategy protocols generate group keys based on contributions of all group members. Particularly appropriate for relatively small collaborative peer groups, these protocols are resilient to many types of attacks. Unlike most group key distribution protocols, advanced encryption strategy offer strong security properties such as key independence and perfect forward secrecy. We prove that it provides both Virtual Synchrony and the security properties of Group Diffie-Hellman, in the presence of any sequence of (potentially cascading) node failures, recoveries, network partitions, and heals. We implemented a secure group communication service, Secure Spread, based on our AES key agreement protocol and Spread group communication system.
Article Details
Unique Paper ID: 145511

Publication Volume & Issue: Volume 4, Issue 10

Page(s): 347 - 350
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