An Efficient Lightweight Mutual Authentication and Key Exchange Protocol for Roaming Vehicle

Intelligent vehicles and their infrastructure have been a booming topic that requires attention towards grooming security services providing safe-secure drive experience to users worldwide. Authentication of these within away from the home network plays an essential role in maintaining seamless service access, especially for moving network. Traditional schemes are centralized primarily focus on vehicle authentication Very few studies conducted during roaming. The trusted authority (TA) must authenticate its along with one roaming, which increases communication computational load TA as scalability increases. This article presents lightweight scheme, roaming vehicles, focuses sharing load. A vehicle, (HTA) identity, sends request nearby roadside unit (RSU) After receiving RSU, foreign (FTA) connects HTA. Vehicle authenticity was confirmed session key generated ensuring access. proposed scheme tested against standard BAN logic prove it meets required standards requirements. Furthermore, computation cost analysis proves this is compared other traditional schemes. Security can successfully prevent major attacks, such anonymity, unlinkability, replay attack, message tampering, malicious tracking.