  The need for different energy sources has increased due to the decrease in
the amount and the harm caused to the environment by its usage. Today, fossil
fuels used as an energy source in land, sea or air vehicles are rapidly being
replaced by different energy sources. The number and types of vehicles using
energy sources other than fossil fuels are also increasing. Electricity stands
out among the energy sources used. The possibility of generating electricity
that is renewable, compatible with nature and at a lower cost provides a great
advantage. For all these reasons, the use of electric vehicles is increasing
day by day. Various solutions continue to be developed for the charging systems
and post-charge billing processes of these vehicles. As a result of these
solutions, the standards have not yet been fully formed. In this study, an
authentication and billing scheme is proposed for charging and post-charging
billing processes of electric land vehicles keeping security and privacy in the
foreground. This scheme is named EVABS, which derives from the phrase "Electric
Vehicle Authentication and Billing Scheme". An authentication and billing
scheme is proposed where data communication is encrypted, payment transactions
are handled securely and parties can authenticate over wired or wireless. The
security of the proposed scheme has been examined theoretically and it has been
determined that it is secure against known attacks.

Cryptography and Security