National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Construction of Nondeterministic Finite Automata
Stanek, Timotej ; Šimek, Václav (referee) ; Kaštil, Jan (advisor)
This thesis discuss about dilemma in construction of nondeterministic finite automata from PCRE expressions with respect of their parameters with use in Intrusion Detection Systems. There is showed PCRE expressions syntax too. We discussed two different approaches to construct nondeterministic finite automata from PCRE expressions. The implementation of these two algorithms is described. We constructed finite automata with them from expressions of three Intrusion Detection Systems: SNORT, Bro IDS and L7-Filter, and finally we compared their parameters and deduced conclusions.
Construction of Nondeterministic Finite Automata
Stanek, Timotej ; Šimek, Václav (referee) ; Kaštil, Jan (advisor)
This thesis discuss about dilemma in construction of nondeterministic finite automata from PCRE expressions with respect of their parameters with use in Intrusion Detection Systems. There is showed PCRE expressions syntax too. We discussed two different approaches to construct nondeterministic finite automata from PCRE expressions. The implementation of these two algorithms is described. We constructed finite automata with them from expressions of three Intrusion Detection Systems: SNORT, Bro IDS and L7-Filter, and finally we compared their parameters and deduced conclusions.

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