The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2016
Filed:
Sep. 11, 2013
Electronics and Telecommunications Research Institute, Daejeon, KR;
Sung-Ryoul Lee, Daejeon, KR;
Young-Han Choi, Daejeon, KR;
Jung-Hee Lee, Daejeon, KR;
Byung-Chul Bae, Daejeon, KR;
Hyung-Geun Oh, Daejeon, KR;
Ki-Wook Sohn, Daejeon, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESERACH INSTITUTE, Daejeon, KR;
Abstract
A network intrusion detection apparatus and method that perform Perl Compatible Regular Expressions (PCRE)-based pattern matching on the payloads of packets using a network processor equipped with a Deterministic Finite Automata (DFA) engine. The network intrusion detection apparatus includes a network processor core for receiving packets from a network, and transmitting payloads of the received packets to a Deterministic Finite Automata (DFA) engine. A detection rule converter converts a PCRE-based detection rule, preset to detect an attack packet, into a detection rule including a pattern to which only PCRE grammar corresponding to the DFA engine is applied. The DFA engine performs PCRE pattern matching on the payloads of the packets based on the detection rule converted by the detection rule converter.