Abstract
Recent development in intelligent transport systems (ITS) has led to the improvement of driving experience in vehicular ad-hoc network (VANET) systems. Providing a low computational cost with high serving capability, however, is a critical phenomenon in the current VANET system. In the existing scenario, when the authenticated vehicle user moves from one roadside unit (RSU) to another RSU region, re-authentication of the vehicle user is required by the current RSU, which increases the computational complexity. To overcome the above-mentioned challenge, a blockchain-based authentication protocol is developed in this work. In this suggested process, blockchain is integrated with VANET, which enables the authentication of the vehicle user without the involvement of a trusted authority. Moreover, the integrity of the message and privacy of vehicle users are preserved in the blockchain network. Even though many blockchain-based schemes have been proposed recently, the existing schemes were not focused on conditional anonymity. However, in our proposed scheme, conditional privacy is introduced to revoke the malicious vehicles in the case of disputes and to avoid further damage to the VANET system. As a result, the proposed scheme provides an efficient mechanism for anonymous authentication, privacy, and integrity preservation with conditional tracking. Finally, the defense against different security threats is explained in the security analysis section, and the performance investigation section shows the competence and efficacy of our method with similar related methods.
Highlights
In the current digital age, human life is made very comfortable with the help of intelligent transport systems (ITS)
There may be a possibility of several security threats. To overcome all these issues, blockchain is integrated with the vehicular ad-hoc network (VANET) system in our suggested method, as it provides a high level of security
We propose a scheme to provide anonymous authentication to the user and to achieve message integrity with less computation power by using bilinear pairing of points on the elliptic curve and integration with blockchain
Summary
In the current digital age, human life is made very comfortable with the help of ITS. If authentication is not provided, there is a possibility of malicious vehicle users entering the system and performing an impersonation attack. There may be a possibility of several security threats To overcome all these issues, blockchain is integrated with the VANET system in our suggested method, as it provides a high level of security. Many anonymous authentication schemes have been proposed based on signature generation to address most of the security and privacy concerns in VANET. We propose a scheme to provide anonymous authentication to the user and to achieve message integrity with less computation power by using bilinear pairing of points on the elliptic curve and integration with blockchain. The proposed method is elucidated, which deals with the anonymous authentication of both vehicle users and RSU.
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