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A decision procedure for the existence of a rank function

Heather, J and Schneider, S (2005) A decision procedure for the existence of a rank function Journal of Computer Security, 13 (2). 317 - 344. ISSN 0926-227X

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Schneider’s work on rank functions [17] provides a formal approach to verification of certain properties of a security protocol. However, he illustrates the approach only with a protocol running on a small network; and no help is given with the somewhat hit-and-miss process of finding the rank function that underpins the central theorem. In this paper, we develop the theory to allow for an arbitrarily large network, and give a clearly defined decision procedure by which one may either construct a rank function, proving correctness of the protocol, or show that no rank function exists. We briefly discuss the implications of the absence of a rank function, and the open question of completeness of the rank function theorem.

Item Type: Article
Additional Information: © IOS Press. All rights reserved
Divisions: Faculty of Engineering and Physical Sciences > Computing Science
Depositing User: Mr Adam Field
Date Deposited: 03 Feb 2012 10:29
Last Modified: 09 Jun 2014 13:26

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