Multiple Pattern Matching for Network Security Applications: Acceleration through Vectorization
Paper i proceeding, 2017
Pattern matching is a key building block of Intrusion Detection Systems and firewalls, which are deployed nowadays on commodity systems from laptops to massive web servers in the cloud. In fact, pattern matching is one of their most computationally intensive parts and a bottleneck to their performance. In Network Intrusion Detection, for example, pattern matching algorithms handle thousands of patterns and contribute to more than 70% of the total running time of the system.In this paper, we introduce efficient algorithmic designs for multiple pattern matching which (a) ensure cache locality and (b) utilize modern SIMD instructions. We first identify properties of pattern matching that make it fit for vectorization and show how to use them in the algorithmic design. Second, we build on an earlier, cache-aware algorithmic design and we show how cache-locality combined with SIMD gather instructions, introduced in 2013 to Intel's family of processors, can be applied to pattern matching. We evaluate our algorithmic design with open data sets of real-world network traffic:Our results on two different platforms, Haswell and Xeon-Phi, show a speedup of 1.8x and 3.6x, respectively, over Direct Filter Classification (DFC), a recently proposed algorithm by Choi et al. for pattern matching exploiting cache locality, and a speedup of more than 2.3x over Aho-Corasick, a widely used algorithm in today's Intrusion Detection Systems.
Hardware
Pattern matching
Data structures
Algorithm design and analysis
vectors
SIMD instructions
network security applications
intrusion detection systems
pattern matching
Registers
SIMD vectorization
gather
cache locality
cache-aware algorithmic design
Intrusion detection
vectorization
cache storage
Program processors
firewalls
Författare
Charalampos Stylianopoulos
Chalmers, Data- och informationsteknik, Nätverk och system
Magnus Almgren
Chalmers, Data- och informationsteknik, Nätverk och system
Olaf Landsiedel
Chalmers, Data- och informationsteknik, Nätverk och system
Marina Papatriantafilou
Chalmers, Data- och informationsteknik, Nätverk och system
46th International Conference on Parallel Processing, ICPP 2017
472-482
978-1-5386-1042-8 (ISBN)
46th International Conference on Parallel Processing (ICPP)
Bristol, ,
Bristol, ,
Säkra IT-system för drift och övervakning av samhällskritisk infrastruktur
Myndigheten för samhällsskydd och beredskap (2015-828), 2015-09-01 -- 2020-08-31.
Ämneskategorier
Datorteknik
Datavetenskap (datalogi)
Datorsystem
DOI
10.1109/ICPP.2017.56