Blockchain-Envisioned Onion Routing Framework for Internet of Vehicles Communication toward 6G.

The advent of the Internet of things (IoT) guided the rapid transformation of traditional vehicle ad-hoc networks (VANETs) into the Internet of vehicles (IoVs). It started with a sharp rise in the number of vehicles, leading to mass data exchange between vehicles and infrastructure and computational tasks on these vehicles. Emergent issues such as active road safety, traffic monitoring, and efficiency are significant concerns in IoV. Hence, achieving anonymity and the security and privacy of the vehicles involved in IoV is still under work. A vital issue is the issue of latency and reliability in IoV for exchanging a mass amount of sensitive information. Given this background, we proposed ToR-IoV, a blockchain and onion routing-based secure IoV communication framework underlying the 6G network. Our proposed framework permits the IoV hashed data to get encapsulated in multiple layers of encryption, and a verifying token (VT) and time to live (TTL) has been assigned to each IoV to authenticate and validate the network attacks on OR. Also, the interplanetary file system (IPFS) constructs the ToR-IoV system cost-effective. Finally, we have demonstrated performance evaluation of ToR-IoV on different parameters such as encryption-decryption time, scalability with IPFS, and latency with 6G.