Shabnam Bohlooli - Department of Electrical and Computer Engineering, Kharzmi University, Iran
Seyyed Amir Asghari - Department of Electrical and Computer Engineering, Kharzmi University, Iran
Mohammadreza Binesh Marvasti - Department of Electrical and Computer Engineering, Kharzmi University, Iran
Vahid Moeini - Department of Electrical and Computer Engineering, Kharzmi University, Iran

The Internet of Vehicles is trying to meet goals such as: minimizing fuel consumption, increasing road safety, traffic management, maximum use of road capacity, preventing air pollution, etc. Achieving these goals is possible through vehicle-to-everything (V۲X)۱ information exchange. This information, which may sometimes play a decisive role in saving the lives of the driver and passengers, should not be able to be penetrated, eavesdropped and manipulated. But in the real world and in the dynamic network of vehicles, it is very difficult to achieve this. In the vehicular network, there is a fundamental need for security, authentication, transparency, message integrity, access control, confidentiality, data immutability, and privacy protection. Since it is possible that unauthorized entities can deceive connected vehicles and violate the security, accuracy and integrity of the message and cause irreparable financial and human losses, therefore, in all infrastructures of smart transportation systems, the issue of authentication The identity and integrity of messages are fundamental security considerations that must be provided. Connected cars must be able to trust each other and communicate and exchange messages in a transparent and secure environment while maintaining privacy. In this regard, using blockchain technology and benefiting from its strengths in order to meet the needs of the Internet of vehicles has been proposed as an important option. In this article, recent studies on the integration of blockchain technology and the Internet of Vehicles have been reviewed in order to solve the challenges of the Internet of Vehicles and prevent the intrusion of unauthorized entities and the violation of user privacy.

Blockchain, Intelligent transportation system, Internet of vehicles, Connected vehicles, Rsu