Lightweight and Privacy-preserving Search over Encryption Blockchain

Hongao Zhang, Zhen Yang, Haiyang Yu
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引用次数: 1

Abstract

With the development of cloud computing, a growing number of users use the cloud to store their sensitive data. To protect privacy, users often encrypt their data before outsourcing. Searchable Symmetric Encryption (SSE) enables users to retrieve their encrypted data. Most prior SSE schemes did not focus on malicious servers, and users could not confirm the correctness of the search results. Blockchain-based SSE schemes show the potential to solve this problem. However, the expensive nature of storage overhead on the blockchain presents an obstacle to the implementation of these schemes. In this paper, we propose a lightweight blockchain-based searchable symmetric encryption scheme that reduces the space cost in the scheme by improving the data structure of the encrypted index and ensuring efficient data retrieval. Experiment results demonstrate the practicability of our scheme.
加密区块链上的轻量级和隐私保护搜索
随着云计算的发展,越来越多的用户使用云存储他们的敏感数据。为了保护隐私,用户通常会在外包之前对数据进行加密。可搜索对称加密(SSE)使用户能够检索其加密的数据。以前的SSE方案大多不关注恶意服务器,用户无法确认搜索结果的正确性。基于区块链的SSE方案显示出解决这一问题的潜力。然而,区块链上昂贵的存储开销对这些方案的实现构成了障碍。本文提出了一种轻量级的基于区块链的可搜索对称加密方案,通过改进加密索引的数据结构和保证高效的数据检索,降低了方案中的空间成本。实验结果证明了该方案的实用性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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