Authentication protocol using an identifier in an ad hoc network environment

Design of a VANET privacy and non‐repudiation accident reporting system

“…Vehicle‐to‐roadside falls into the category of vehicle‐to‐infrastructure communication. Drivers can access Internet services via an open network environment . Related applications can be divided into two types: safety related applications and non‐safety related applications in VANETs.…”

“…Therefore, the communication system must ensure communication security between sender and receiver . Anonymity: The communication system must guarantee drivers' privacy . Authentication: The authentication service is concerned with ensuring that the communication is authentic. A vehicle should only react to events when messages are generated by legitimate senders . Integrity: In an insecure network, messages are vulnerable to being deleted, modified, or forged by malicious attackers. Therefore, the communication system must ensure that the authorization certificate cannot be modified or forged . Non‐repudiation: This requirement prevents either sender or receiver from denying transmitted messages . Known key security: Malicious attackers may intercept the session key in order to obtain private information from the server or user.…”

“…To guarantee the security of the communication system, the session key must be one‐time use only. In this way, even if the attacker intercepts the session key, the security remains unaffected .…”