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Decentralized Privacy-Preserving Data Aggregation Scheme for Smart Grid Based on Blockchain.

Hongbin Fan1,2, Yining Liu3, Zhixin Zeng3

  • 1College of Software and Communication Engineering, Xiangnan University, Chenzhou 423000, China.

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|September 18, 2020
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Summary
This summary is machine-generated.

This study introduces a blockchain-based system for smart grids to protect user privacy during data aggregation. The decentralized privacy-preserving data aggregation (DPPDA) scheme enhances security without a trusted third party.

Keywords:
blockchaindata aggregationdecentralizedprivacy-preservation

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Area of Science:

  • Computer Science
  • Electrical Engineering
  • Cybersecurity

Background:

  • Smart grids require fine-grained data collection for energy optimization.
  • Smart meters present privacy risks due to potential attacks on trusted authorities.
  • Existing solutions often rely on centralized trusted third parties (TTPs) or certificate authorities (CAs).

Purpose of the Study:

  • To propose a decentralized privacy-preserving data aggregation (DPPDA) scheme for smart grids using blockchain technology.
  • To address security challenges in smart metering and protect user privacy.
  • To eliminate the need for TTPs or CAs in data aggregation processes.

Main Methods:

  • Utilizing blockchain as a decentralized protocol.
  • Implementing a leader election algorithm for selecting mining nodes.
  • Employing the Paillier cryptosystem for data aggregation.
  • Applying Boneh-Lynn-Shacham short signatures and SHA-256 for data confidentiality and integrity.

Main Results:

  • The proposed scheme achieves decentralized privacy-preserving data aggregation.
  • User privacy is protected without reliance on TTPs or CAs.
  • The scheme ensures data confidentiality and integrity for billing and power regulation.
  • Experimental results demonstrate superior efficiency in computation and communication overhead compared to existing schemes.

Conclusions:

  • The developed DPPDA scheme effectively enhances smart grid security and user privacy.
  • Blockchain technology offers a robust solution for decentralized data aggregation in smart grids.
  • The scheme provides a more efficient and secure alternative to traditional centralized approaches.