Patent ID: 7913304
Filing Date: 2011-03-22
Classification: G06F,H04L

Abstract:
1. An event detection method, comprising: predefining event-based detection rules with a predicative context-free grammar, wherein the predicative context-free grammar G is a quintuple in a form of G={V generating through a generation module, by parsing the detection rules, a parsing table of pushdown automaton which supports parallel parsing, wherein the parsing table of pushdown automaton is obtained through the steps of: a) parsing protocol rules and attack rules to obtain a syntax tree; b) generating item sets of the predicative context-free grammar with a predicative LR(0) generation algorithm; and c) converting the item sets to obtain a corresponding parsing table of pushdown automaton which comprises an ACTION table and a GOTO table; receiving through an interface unit an event to be detected; and analyzing by a controller the event to be detected according to the parsing table, to obtain a detection result.