作者: Jorge Gallego-Madrid , Ramon Sanchez-Iborra , Jose Santa , Antonio Skarmeta
DOI: 10.1016/J.COMNET.2020.107523
关键词: Network security 、 Computer science 、 Public-key cryptography 、 Computer network 、 Vehicular ad hoc network 、 Public key infrastructure 、 Symmetric-key algorithm 、 Encryption 、 Cipher
摘要: Abstract Vehicular communications are bringing a new wave of applications under the umbrella Cooperative Intelligent Transportation Systems (C-ITS). To this end, on-board units expected to send messages periodically or upon appearance relevant event, feed an awareness ecosystem that enables safety traffic efficiency services. This is case Awareness Messages (CAMs) in Europe, which contain basic vehicle information such as its position speed, among other parameters. From network security perspective, CAMs broadcasted unencrypted over unprotected radio channel, hence enabling their potential interception and disclosure sensitive data. Although public key infrastructures (PKI)-like solutions have been proposed, high computational cost asymmetric cryptography cipher application data remains challenge confidentiality alternative needed. In work, we present implementation evaluation symmetric encryption scheme based on disjoint domains distributed geographical areas. solution, vehicles able coordinate agree common keys be used different zones. Simulation results show validity zone diverse vehicular scenarios with densities. A issue redistribution consisting propagation wrongly-generated duplicated also detected, discussed detail reliable solution support third-party data-forwarders proposed tested. Evaluations reveal good performance mechanism terms robustness latency, guaranteeing efficient access secured channel while maintaining low computing load.