Vehicular Cloud Computing (VCC) extends the scope of smart transportation applications through sharing vehicular data and resources. It is thus pivotal to transmit, save, and extract vital data with adequate security and privacy protections. There is yet no lightweight vehicular data exchange mechanism for resource-constrained environments that simultaneously offers secure and low-cost message transmission, data storage, and information searching. State-of-the-art vehicular communication protocols are also vulnerable to crucial security attacks and require more computational resources during the implementation. We, therefore, propose secure and efficient message communication, data storage, and information searching protocols (named QueryCom) for smart transportation. The QueryCom is designed using SHA-512 and Advanced Encryption Standard (AES-256), preserving security and user anonymity attributes. Further, an index-based sequential searching method is used to effectually obtain information from the Vehicular Cloud (VC) database. We evaluate QueryCom based on the security proof and attacks analysis to confirm its security robustness against crucial security attributes. The experimental testbed results (on Raspberry Pi 3B+) are discussed to analyze the computational proficiency based on different performance parameters, i.e., time complexity (to search information from the VC database), computation time, storage cost, communication overhead, and energy consumption.

By 2020, around 25 billion “things” will be connected to the Internet for a better society using different technological systems. Vehicle users have better experience by collaborating the Internet of Things (IoT) and vehicular ad-hoc network (VANET) architectures, and this emerging field is called the Internet of vehicles (IoV). Therefore, the IoV architecture will play an important role in the industry, research organization, and academics for various public and commercial applications. However, the IoV structure should ensure secure and efficient performance for vehicular communications, else an attacker may interfere in the system. In this article, we propose protected comprehensive data dissemination protocols (say IoVCom) based on one-way hash function and elliptic curve cryptography (ECC) for the IoV structure. Next, we analyze security strengths of the IoVCom against various security attacks and discuss performance results in terms of communication overhead, computation time, storage cost, and energy consumption.

Vehicles are especially capable of exchanging pertinent information with nearby vehicles. However, there are multiple challenges like secure data exchange, fast message transmission, dynamic topology, and user data protection while transmitting relevant information between moving vehicles on the road. Therefore, researchers suggested different vehicle-to-vehicle (V2V) message communication and verification mechanisms, but they are vulnerable to crucial security attacks. Furthermore, the existing V2V communication schemes relatively require high operational costs for the implementation, taking more time and computational resources for road safety and traffic data exchanges. In this article, we propose a secure and efficient V2V message communication protocol (named asVCom) for vehicle users using a low-cost function (i.e., SHA-256) while preserving user anonymity. The security proof and analysis are discussed for the VCom to confirm its security and user privacy strengths against different security attributes and attacks. The test-bed implementation results show that the VCom is comparatively efficient in the computational cost, communication overhead, storage cost, and energy consumption.

The Internet of Vehicles (IoV) offers an emerging paradigm that deals with interconnected vehicles interacting with the infrastructure, roadside units (RSUs), sensors, and mobile devices with a goal to sense, compute, store, and transmit vital information or data over a common channel while vehicles are moving. Secure and reliable communication and efficient on-device performance are thus crucial challenges in this paradigm, particularly in presence of limited computation resources. This paper presents a novel secure and energy-efficient message communication system, called MComIoV, using a one-way hash function and elliptic curve cryptography (ECC). We evaluate MComIoV through security proof and analysis against various attacks to verify its robustness. The proposed system is also implemented and tested on Raspberry Pi 3B+. Experimental results demonstrate the efficiency in computation time, storage cost, communication overhead, and energy consumption.

Smart application has been focused more to solve real-world problems like smart home, smart street lighting system etc., but the concept of data transmission between devices require precise attention to preserve security with better performance output in device communication. The blockchain is a decentralized computation and information sharing platform to enable different players to verify on the fly. This paper presents a hyper-ledger fabric-based blockchain architecture using a one-way hash function to employ distributed data storage, to enhance the security of the smart applications, and to improve performance in the computation. The proposed protocol resists to different attacks, i.e., modification, impersonation, replay, man-in-the-middle, stolen verifies, device injection, false reputation, and appending. Moreover, performance results are comparatively better rather than relevant vehicular communication protocols.

In the fast-growing world, a significant increase in the number of vehicles has opened an opportunity to transform vehicles from a mechanical device to an intelligent system. The vehicular ad-hoc network (VANET) is designed to exchange messages with nearby devices. However, it is tough to transmit information from a sender to a receiver in a public environment due to malicious activities (by an adversary), wireless connection, mobility, and high-cost requirement. In this paper, we propose a state-of-the-art protocol, names as “VehicleChain” for smart transportation to ensure secure and cost-effective vehicle-to-vehicle and vehicle-to-infrastructure communications. The VehicleChain combines the robustness of a blockchain with elliptic-curve cryptography (ECC) to improve the system security level without increasing the computational cost. The VehicleChain is protected against different attacks, i.e., insider, server spoofing, modification, man-in-the-middle, plaintext, replay, and impersonation. Further, the proposed scheme comparatively achieves better results for different performance measures.