Department of Digital Systems, University of Piraeus, 18534 Piraeus, Greece.
Department of Informatics, Ionian University, 49100 Corfu, Greece.
Sensors (Basel). 2021 Apr 11;21(8):2686. doi: 10.3390/s21082686.
Due to its flexibility in terms of charging and billing, the smart grid is an enabler of many innovative energy consumption scenarios. One such example is when a landlord rents their property for a specific period to tenants. Then the electricity bill could be redirected from the landlord's utility to the tenant's utility. This novel scenario of the smart grid ecosystem, defined in this paper as Grid-to-Go (G2Go), promotes a green economy and can drive rent reductions. However, it also creates critical privacy issues, since utilities may be able to track the tenant's activities. This paper presents P4G2Go, a novel privacy-preserving scheme that provides strong security and privacy assertions for roaming consumers against honest but curious entities of the smart grid. At the heart of P4G2Go lies the Idemix cryptographic protocol suite, which utilizes anonymous credentials and provides unlinkability of the consumer activities. Our scheme is complemented by the MASKER protocol, used to protect the consumption readings, and the FIDO2 protocol for strong and passwordless authentication. We have implemented the main components of P4G2Go, to quantitatively assess its performance. Finally, we reason about its security and privacy properties, proving that P4G2Go achieves to fulfill the relevant objectives.
由于智能电网在收费和计费方面具有灵活性，因此它是许多创新能源消费场景的推动者。例如，当房东将其房产出租给特定租户时，电费可以从房东的水电费转移到租户的水电费。本文定义了这种智能电网生态系统的新场景，称为 Grid-to-Go（G2Go），它促进了绿色经济，并可以降低租金。然而，它也带来了关键的隐私问题，因为公用事业公司可能能够跟踪租户的活动。本文提出了 P4G2Go，这是一种新颖的隐私保护方案，为漫游消费者提供了针对智能电网中诚实但好奇实体的强大安全性和隐私声明。P4G2Go 的核心是 Idemix 密码协议套件，它利用匿名凭证并提供消费者活动的不可链接性。我们的方案还补充了用于保护消费读数的 MASKER 协议和用于强大无密码身份验证的 FIDO2 协议。我们已经实现了 P4G2Go 的主要组件，以对其性能进行定量评估。最后，我们对其安全性和隐私属性进行了推理，证明了 P4G2Go 实现了相关目标。
