Pre-Signature Scheme for Trustworthy Offline V2V Communication

Muller, Tim; Carpent, Xavier; Furnell, Steven; Almani, Dimah; Yoshizawa, Takahito

Abstract

Vehicle-to-Vehicle (V2V) communication systems hold great potential for enhancing road safety and traffic efficiency. The authenti-cation of such communication is crucial, particularly in scenarios where infrastructure is absent, while also ensuring the privacy of the participating vehicles. The Security Credential Management System (SCMS) offers a solution using pseudonym certificates. The pseudonymous nature of the V2V communication poses a challenge to integrating reputation of vehicles. We propose a novel solution that allows reputation to be used even when vehicles are pseudonymous and without access to a reputation server. By extending SCMS with a reputation system, vehicles can securely retrieve and update their reputation from a dedicated server, resulting in improved effectiveness of offline V2V communication. To achieve this, we propose a two-step signature scheme variant called Pre-Signature. This scheme enables an appropriate balance between reputation and pseudonymity in offline V2V communication. It increases message size by approximately 0.5 kilobytes while ensuring efficient off-line operation and secure communication, with minimal computational overhead for signing and verification operations.

Citation

Muller, T., Carpent, X., Furnell, S., Almani, D., & Yoshizawa, T. (2023, October). Pre-Signature Scheme for Trustworthy Offline V2V Communication. Presented at 14th IFIP International Conference on Trust Management (IFIPTM 2023), Amsterdam, Netherlands

• Presentation Conference Type: Conference Paper (published)
• Conference Name: 14th IFIP International Conference on Trust Management (IFIPTM 2023)
• Start Date: Oct 19, 2023
• End Date: Oct 20, 2023
• Acceptance Date: Sep 1, 2023
• Online Publication Date: Oct 19, 2023
• Publication Date: Oct 19, 2023
• Deposit Date: Feb 23, 2024
• Publicly Available Date: Feb 26, 2024
• Publisher: Springer
• Public URL: https://nottingham-repository.worktribe.com/output/25362131
• Related Public URLs: https://event.cwi.nl/ifiptm2023/