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:
May. 14, 2019
Filed:
Mar. 31, 2016
Fortinet, Inc., Sunnyvale, CA (US);
Juneng Zheng, Fremont, CA (US);
Hongbin Lu, San Jose, CA (US);
Fortinet, Inc., Sunnyvale, CA (US);
Abstract
Systems and methods for high performance IDS/IPS with efficient metadata filtering are provided. According to one embodiment, a signature database of an IDS/IPS is configured with multiple metadata signatures. A pre-match engine identifies a candidate packet of network traffic received by the IDS/IPS for full-feature match processing by: (i) categorizing the metadata signatures based on characteristics thereof; and (ii) processing and filtering a first set of the metadata signatures that forms part of a hash key based metadata signature category. The hash key based metadata signature category represents a category resulting from the categorization and each of the first set of metadata signatures is associated with a fixed unique hash key based on which respective metadata signatures are matched with the received network traffic to identify the candidate packet. Finally, a potential intrusion is identified by performing the full-feature match processing on the candidate packet based on full-feature match signatures.