Blockchain Ethereum-Based Decentralized Secure Ride-Sharing Framework for Carpooling System

Carpooling involves sharing a car for a journey, typically with two or more individuals. Car-sharing systems play a crucial role in addressing urban challenges by providing shared vehicles and decreasing the dependence on private cars. Car-sharing systems present security concerns due to transmitting sensitive information through a shared centralized network, including identity, location, and access codes. It is crucial to develop secure authentication methods to prevent unauthorized access and use of this information for illegitimate purposes. To address the problem, this research presents a Blockchain Ethereum-based Decentralized Secure Ride-sharing Framework (BEDSRF) for carpooling systems. The study introduces a Role-based Access Control (RBAC) method to determine user roles for accessing their information. Then, based on these roles, the data is encrypted using the Elliptic Curve Cryptography (ECC) method. The BEDSRF approach verifies each node and transmits the information within the decentralized network. Additionally, the Key Policy Authentication Scheme (KPAS) is utilized to authenticate the user's key and enable role-based decryption for the end user. Furthermore, experiments were carried out to confirm the efficiency and resilience of the proposed approach. The findings indicate that the proposed method outperforms existing carpooling schemes in terms of both security and authentication performance.