Note the change in venue - this seminar will be held today, Thursday Aug 17, in the Cactus venue at 2:00 Mountain time. Sorry for the confusion..
LANL Seminar series - Regular Expression Software Deceleration for Intrusion Detection Systems DATE: Thursday, August 17 TIME: 2:00pm Mountain Time VENUE: Cactus (off the NCSA venue server) Note change in venue!! All remote sites welcome! Please arrive in the venue at least 1/2 hour early for testing and VNC information. Meeting details: http://agschedule.ncsa.uiuc.edu/meetingdetails.asp?MID=16738 SPEAKER: Zachary K. Baker, LANL, CCS-1 ABSTRACT: The use of reconfigurable hardware for network security applications has recently made great strides as FPGA devices have provided larger and faster resources. Regular expressions have become a necessary and basic capability of Intrusion Detection Systems, but their implementation tends to be expensive in terms of memory cost and time performance. This work provides an architecture that reduces the exponential NFA to DFA conversion cost to a linear growth for many expressions. By handling the timing and integration of the regular expression-based rules in a custom microcontroller, the memory costs are reduced and the capabilities are increased over a DFA-only solution. Both the microcontroller and its associated DFA are implemented on the FPGA. The patterns and software are stored using run-time programmable memory tables. This allows on-the-fly modification to the regular expressions. This talk will present the design details of the regular expression microcontroller and its integration to the DFA state machines. The types of expressions that the system can handle efficiently will be discussed as well as the outstanding problems that continue to challenge the community. For more information or to RSVP , please contact siev...@lanl.gov ============================================ Cindy Sievers Los Alamos National Laboratory siev...@lanl.gov Group CCS-1 MS B287 tel:505.665.6602 Advanced Computing fax:505.665.4939 Los Alamos, NM 87544 ============================================
