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String distances and intrusion detection:Bridging the gap between formal languages and computersecurity

Published online by Cambridge University Press:  20 July 2006

Danilo Bruschi  and
Giovanni Pighizzini
Danilo Bruschi
Affiliation:
Dipartimento di Informatica e Comunicazione, Università degli Studi di Milano, via Comelico, 39, 20135 Milano, Italy; [email protected],[email protected]
Giovanni Pighizzini
Affiliation:
Dipartimento di Informatica e Comunicazione, Università degli Studi di Milano, via Comelico, 39, 20135 Milano, Italy; [email protected],[email protected]
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Abstract

In this paper we analyze some intrusion detection strategies proposed in the literature and we show that they represent the various facets of a well known formal languages problem: computing the distance between a string x and a language L. In particular, the main differences among the various approaches adopted for building intrusion detection systems can be reduced to the characteristics of the language L and to the notion of distance adopted. As a further contribution we will also show that from the computational point of view all these strategies are equivalent and they are amenable to efficient parallelization.

Keywords

Type
Research Article
Information
RAIRO - Theoretical Informatics and Applications , Volume 40 , Issue 2: Alberto Bertoni: Climbing summits , April 2006 , pp. 303 - 313
Copyright
© EDP Sciences, 2006

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