Uma arquitetura de segurança para medidores inteligentes – verificação prática de dados de energia multitarifada

• Sérgio Câmara UFRJ / Inmetro
• Raphael Machado Inmetro
• Luci Pirmez UFRJ
• Luiz F. R. C. Carmo UFRJ / Inmetro

DOI: https://doi.org/10.5753/sbseg.2012.20548

Abstract

Energy meters have become functionally complex over time, on the other hand, the correctness of their behavior is still questionable and the effort involved on new smart meters type approval is growing huge. Aiming at establishing trust on the smart meter, this paper proposes a security architecture based on a consumption authenticator. This authenticator is generated inside a secure device, placed on the metering module, using ECPVS signature scheme. Our approach considers different Time-Of-Use scenarios and presents three composing techniques for the authenticator's embedded message. Our concerns are the final size of this message and the necessary data for validating the Time-Of-Use rates consumption values.

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