Author:
Daniele Codetta-Raiteri
Affiliation:
University of Piemonte Orientale, Italy
Keyword(s):
Attack Trees, Fault Trees, Petri Nets, Dynamic Gates, Repair Box, Parametric Form, Simulation, Reliability, Security.
Related
Ontology
Subjects/Areas/Topics:
Information and Systems Security
;
Information Assurance
;
Network Security
;
Reliability and Dependability
;
Risk Assessment
Abstract:
Fault trees (FT) are widespread models in the field of reliability, but they lack of modelling power. So, in the literature, several extensions have been proposed and introduced specific new modelling primitives. Attack trees (AT) have gained acceptance in the field of security. They follow the same notation of standard FT, but they represent the combinations of actions necessary for the success of an attack to a computing system. In this paper, we extend the AT formalism by exploiting the new primitives introduced in the FT extensions. This
leads to more accurate models. The approach is applied to a case study: the AT is exploited to represent the attack mode and compute specific quantitative measures about the system security.