Dynamic Wireless Power Transfer (DWPT) can be used for on-demand recharging
of Electric Vehicles (EV) while driving. However, DWPT raises numerous security
and privacy concerns. Recently, researchers demonstrated that DWPT systems are
vulnerable to adversarial attacks. In an EV charging scenario, an attacker can
prevent the authorized customer from charging, obtain a free charge by billing
a victim user and track a target vehicle. State-of-the-art authentication
schemes relying on centralized solutions are either vulnerable to various
attacks or have high computational complexity, making them unsuitable for a
dynamic scenario. In this paper, we propose Quick Electric Vehicle SEcure
Charging (QEVSEC), a novel, secure, and efficient authentication protocol for
the dynamic charging of EVs. Our idea for QEVSEC originates from multiple
vulnerabilities we found in the state-of-the-art protocol that allows tracking
of user activity and is susceptible to replay attacks. Based on these
observations, the proposed protocol solves these issues and achieves lower
computational complexity by using only primitive cryptographic operations in a
very short message exchange. QEVSEC provides scalability and a reduced cost in
each iteration, thus lowering the impact on the power needed from the grid.Comment: 6 pages, conferenc
