Redactable Signatures to Control the Maximum Noise for Differential Privacy in the Smart Grid
Redactable Signatures to Control the Maximum Noise for Differential Privacy in the Smart Grid
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DOI：
10.1007/978-3-319-10329-7_6
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发表时间：
2014-02
期刊：
影响因子：
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通讯作者：
H. C. Pöhls;M. Karwe
中科院分区：
文献类型：
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作者：
H. C. Pöhls;M. Karwe
智能电网目前正在开发中，需要解决完整性和来源身份验证等基本安全要求，同时最大限度地减少出现的隐私问题。本文平衡了两个对立的目标：一方面，我们通过数据扰动机制（例如添加噪声）减轻过于精确的能耗值引发的隐私问题。另一方面，我们通过使用可编辑签名来限制噪声范围并保持智能计量网关消耗值的可验证完整性水平。我们建议使用通过计算差分隐私的最坏情况保证所获得的值作为比较和判断智能电网应用的隐私侵入性的指标。
The Smart Grid is currently developed and fundamental security requirements like integrity and origin authentication need to be addressed while minimizing arising privacy issues. This paper balances two opposing goals: On the one hand, we mitigate privacy issues raised by overly precise energy consumption values via data perturbation mechanisms, e.g., add noise. On the other hand we limit the noise’s range and keep a verifiable level of integrity of consumption values from the Smart Metering Gateway by using a redactable signature. We propose to use the value obtained by calculating the worst case guarantee of differential privacy as a metric to compare and judge a Smart Grid application’s privacy invasiveness.