Randy Smith Cristian Estan Somesh Jha Ida Siahaan Fast Signature Matching Using Extended Finite Automaton (XFA). 158-172 2008 ICISS http://dx.doi.org/10.1007/978-3-540-89862-7_15 conf/iciss/2008 db/conf/iciss/iciss2008.html#SmithEJS08