In this work we have highlighted the privacy invasion that electric vehicle charging based on ISO/IEC 15118 may introduce. As our privacy impact assessment of this protocol has shown, drivers may unnecessarily reveal details about their whereabouts to charging station and mobility operators. Using our PIA results, we designed modular enhancements of the protocol based on state-of-the-art PETs, showing that PET technology allows to implement comfortable and fully functional Authentication, Authorization and Accounting (AAA) for eMobility and electric vehicle charging without sacrificing privacy. This claim was corroborated by a second PIA analysis and a prototype implementation. By taking a modular approach to extend the original ISO/IEC 15118 protocol, POPCORN can even be introduced in a gradual way, if industry is not willing to initially introduce a dispute resolver or payment handler. Of course this goes at a reduced privacy protection. Still it would allow an immediate introduction of better privacy protection to the current protocols and infrastructures. We are in the process of submitting our POPCORN proposal to the respective ISO working group to discuss the potential for actual consideration in the standard. We have the hope that our work will provide a significant contribution to the introduction of privacy-preserving and still functional and convenient electric vehicle charging infrastructures. At the same time, it provides a lesson how today's PETs in combination with thorough PIA can be used to build and deploy privacy-enhancing systems that introduce only modest additional effort but fully retain system functionality and security.


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    Titel :

    POPCORN: Privacy-Preserving Charging for eMobility


    Beteiligte:
    Höfer, Christina (Autor:in) / Petit, Jonathan (Autor:in) / Schmidt, Robert (Autor:in) / Kargl, Frank (Autor:in)


    Erscheinungsdatum :

    2013


    Format / Umfang :

    13 Seiten, 5 Bilder, 1 Tabelle, 11 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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