Quantitative risk assessment to enhance aeromacs security in SESAR

Abstract

This paper presents the simulation results relevant to the 15.2.7 Working Package of the European SESAR Project1. The main goal was to conduct a risk assessment of network security for the AeroMACS airport network. The risk analysis is based on a new approach for network security assessment that measures quantitatively the network risk level. Critical aspects such as the impact of a successful attack on a node and the risk propagation of that attack within an aeronautical wireless airport communication network have been taken into account. We specifically focus on the access network vulnerabilities, and a first network risk study is conducted for a predefined scenario. Some security guideline are provided to enhance the security policies and to improve the end-to-end security using some additional mechanisms such as certificate-based authentication.