Publication Details

Methodology for Fast Pattern Matching by Deterministic Finite Automaton with Perfect Hashing

KAŠTIL, J.; KOŘENEK, J.; LENGÁL, O. Methodology for Fast Pattern Matching by Deterministic Finite Automaton with Perfect Hashing. 12th EUROMICRO Conference on Digital System Design DSD 2009. Patras: IEEE Computer Society, 2009. s. 823-289. ISBN: 978-0-7695-3782-5.
English title
Methodology for Fast Pattern Matching by Deterministic Finite Automaton with Perfect Hashing
Type
conference paper
Language
Czech
Authors
Kaštil Jan, Ing., Ph.D.
Kořenek Jan, doc. Ing., Ph.D. (DCSY)
Lengál Ondřej, Ing., Ph.D. (DITS)
Keywords

Intrusion detection, regular expression, perfect hashing, hardware acceleration

Abstract

As the speed of current computer networks increases, it is necessary to protect networks by security systems such as firewalls and Intrusion Detection Systems operating at multigigabit speeds. Pattern matching is the time-critical operation of current IDS on multigigabit networks. Regular expressions are often used to describe malicious network patterns. This paper deals with fast regular expression matching using the Deterministic Finite Automaton (DFA) with perfect hash function. We introduce decomposition of the problem on two parts: transformation of the input alphabet and usage of a fast DFA, and usage of perfect hashing to reduce space/speed tradeoff for DFA transition table

Annotation

As the speed of current computer networks increases,
it is necessary to protect networks by security systems
such as firewalls and Intrusion Detection Systems operating
at multigigabit speeds. Pattern matching is the time-critical
operation of current IDS on multigigabit networks. Regular
expressions are often used to describe malicious network patterns.
This paper deals with fast regular expression matching using
the Deterministic Finite Automaton (DFA) with perfect hash
function. We introduce decomposition of the problem on two
parts: transformation of the input alphabet and usage of a fast
DFA, and usage of perfect hashing to reduce space/speed tradeoff
for DFA transition table

Published
2009
Pages
823–289
Proceedings
12th EUROMICRO Conference on Digital System Design DSD 2009
ISBN
978-0-7695-3782-5
Publisher
IEEE Computer Society
Place
Patras
BibTeX 
@inproceedings{BUT33744,
  author="Jan {Kaštil} and Jan {Kořenek} and Ondřej {Lengál}",
  title="Methodology for Fast Pattern Matching by Deterministic Finite Automaton with Perfect Hashing",
  booktitle="12th EUROMICRO Conference on Digital System Design DSD 2009",
  year="2009",
  pages="823--289",
  publisher="IEEE Computer Society",
  address="Patras",
  isbn="978-0-7695-3782-5",
  url="https://www.fit.vut.cz/research/publication/9054/"
}
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