Safety aspects of PKI architecture within C-ITS and their modelling

Abstract

The authors deals with the problem of secure analysis of C2C communications within Cooperative - Intelligent Transportation Systems (C-ITS). In paper PKI (Public Key Infrastructure) on the base of ECDSA (Elliptic Curve Digital Signature Algorithm) for several EC (Elliptic Curves) types is proposed. The experimental part is focused on secure analysis of the worst case scenario of C2C communications for four-lane intersection (with 800 cars), which model was realized via OPNET Modeler with applying OpenSSL libraries. From obtained results the influence of used elliptic curve within message authentication and size of transmitted message to performance of the VANET network was analyzed.