| 引用本文: | 杨 锐,张瑞婷,翟社平.电力数据多方共享的区块链可搜索加密方案[J].电力系统保护与控制,2024,52(22):116-128. |
| YANG Rui,ZHANG Ruiting,ZHAI Sheping.Blockchain searchable encryption scheme for multi-user power data sharing[J].Power System Protection and Control,2024,52(22):116-128 |
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| 摘要: |
| 新型电力系统对电力数据的共享提出了更高的要求，但现有电力数据共享方案仍然存在数据安全性不强、用户访问不受限、共享数据难以满足针对性需求等问题。为了解决这些问题，提出了一种可实现电力数据多方共享的区块链可搜索加密方案。结合条件广播代理重加密和公钥可搜索加密，保护了电力数据机密性，同时实现了关键词陷门搜索。代理重加密加入广播机制实现一次加密多用户共享，降低了数据拥有者的计算负担，并通过条件值设定实现细粒度访问控制。设计了加密电力数据多方搜索与共享模型，由区块链存储关键词文件编号索引并执行搜索，保障数据不可篡改且搜索可信。分析结果表明，该方案实现了电力数据的安全搜索与共享，其多用户可控共享适用于数据交换复杂的新型电力系统。 |
| 关键词: 电力数据共享 可搜索加密 条件广播代理重加密 区块链 新型电力系统 |
| DOI：10.19783/j.cnki.pspc.240771 |
| 分类号: |
| 基金项目:陕西省重点研发计划项目资助(2022GY-038)；西安邮电大学研究生创新基金资助(CXJJYL2022036) |
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| Blockchain searchable encryption scheme for multi-user power data sharing |
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YANG Rui, ZHANG Ruiting, ZHAI Sheping
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School of Computer Science and Technology, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
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| Abstract: |
| The new power system makes higher requirements for power data sharing, but the existing power data sharing schemes still have some problems, such as weak data security, unrestricted user access, and difficulty in meeting specific sharing needs. To solve these problems, a blockchain searchable encryption scheme for multi-user sharing of power data is proposed. By combining conditional broadcast proxy re-encryption and public key searchable encryption, the scheme protects the confidentiality of power data and realizes keyword trapdoor search. The integration of proxy re-encryption with a broadcasting mechanism enables encryption to be needed only once for multi-user sharing, reducing the computing burden of the data owner, and achieving fine-grained access control through conditional value setting. A multi-user search and sharing model of encrypted power data is designed, and a keyword file number is stored and indexed by the blockchain, so as to ensure that the data cannot be tampered with and that the search is reliable. The results show that the scheme realizes secure searching and sharing of power data, and that the multi-user controllable sharing is suitable for the new power system with complex data exchanges. |
| Key words: power data sharing searchable encryption conditional broadcast proxy re-encryption blockchain new power system |
