Intrusion-tolerant server architecture for survivable services

Survivable systems are increasingly needed in a wide range of applications. As a step toward realizing survivable systems, this paper presents architecture of intrusion-tolerant servers. It is to deliver intended services transparently to the clients even when a computing node fails due to failures,...

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Bibliographic Details
Published in:The Journal of supercomputing 2005-07, Vol.33 (1-2), p.93-102
Main Author: Min, Byoung Joon
Format: Article
Language:English
Subjects:
Algorithms
Computer architecture
Intrusion
Servers
Survival
Web services
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Summary:Survivable systems are increasingly needed in a wide range of applications. As a step toward realizing survivable systems, this paper presents architecture of intrusion-tolerant servers. It is to deliver intended services transparently to the clients even when a computing node fails due to failures, intrusions, and other threats. In order to deliver only secure results to the client, we need an algorithm to decide agreement on results from replicated servers. For this purpose, a secure and practical decentralized voting algorithm for the architecture is proposed in the paper. Through the experiments on a test-bed, especially, for web services, the approach turned out very effective in terms of extra cost and considered to be able to cope with both confidentiality and integrity attacks.
ISSN:0920-8542
1573-0484
DOI:10.1007/BF02764143