Intrusion tolerant server system

Details Intrusion tolerant server system Intrusion tolerant server system

2006-07-11

2006-07-11

Sheikh, Ayaz (Department: 2136)

Information security

Access control or authentication

Network

C726S012000, C726S013000

Reexamination Certificate

active

07076801

ABSTRACT:
The invention relates to a reconfigurable scalable intrusion-tolerant network that is interposed between a service requesting client and a protected server to minimize the impact of intrusive events. The apparatus may include a proxy server for receiving the requests from a client and forwarding them to a protected server. Acceptance monitors receive the response from a protected server and apply one or more acceptance tests. A ballot monitor receives the result of the acceptance tests and determines a response to the client. The network may also include an intrusion sensor to detect threats to the network and a reconfigurer to alter the network forwarding scheme. Reconfiguration may include isolating network elements, creating parallel paths, implementing redundant operations, or assessing the validity of responses.

REFERENCES:
patent: 5991881 (1999-11-01), Conklin et al.
patent: 6219786 (2001-04-01), Cunningham et al.
patent: 6279113 (2001-08-01), Vaidya
patent: 6321337 (2001-11-01), Reshef et al.
patent: 6671821 (2003-12-01), Castro et al.

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