Privacy-Preserving Power Flow Analysis via Secure Multi-Party Computation

• URL: http://arxiv.org/abs/2411.14557v1
• Date: Thu, 21 Nov 2024 20:04:16 GMT
• Title: Privacy-Preserving Power Flow Analysis via Secure Multi-Party Computation
• Authors: Jonas von der Heyden, Nils Schlüter, Philipp Binfet, Martin Asman, Markus Zdrallek, Tibor Jager, Moritz Schulze Darup,
• Abstract summary: We show how to perform power flow analysis on cryptographically hidden prosumer data. We analyze the security of our approach in the universal composability framework.
• Score: 1.8006898281412764
• License:
• Abstract: Smart grids feature a bidirectional flow of electricity and data, enhancing flexibility, efficiency, and reliability in increasingly volatile energy grids. However, data from smart meters can reveal sensitive private information. Consequently, the adoption of smart meters is often restricted via legal means and hampered by limited user acceptance. Since metering data is beneficial for fault-free grid operation, power management, and resource allocation, applying privacy-preserving techniques to smart metering data is an important research problem. This work addresses this by using secure multi-party computation (SMPC), allowing multiple parties to jointly evaluate functions of their private inputs without revealing the latter. Concretely, we show how to perform power flow analysis on cryptographically hidden prosumer data. More precisely, we present a tailored solution to the power flow problem building on an SMPC implementation of Newtons method. We analyze the security of our approach in the universal composability framework and provide benchmarks for various grid types, threat models, and solvers. Our results indicate that secure multi-party computation can be able to alleviate privacy issues in smart grids in certain applications.

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