Multi-pattern matching in compressed communication traffic

Anat Bremler-Barr, Victor Zidon, Yaron Koral
Patent,
2010
Patents
Deep Packet Inspection (DPI)

Abstract

A method for processing data includes accepting a specification of a plurality of patterns, each pattern defining a respective uncompressed sequence of symbols. Multi-pattern matching is applied to an incoming stream of compressed communication traffic containing compression metadata so as to identify the patterns occurring in the stream while using the compression metadata to skip over parts of the stream.