Rethinking Practical Blockchain-Based Symmetric Searchable Encryption Services

Jun Zhao*, Jiangshan Yu, Xingliang Yuan, Joseph K. Liu, Cong Zuo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Blockchain-based cloud storage is one of the areas which have been developing rapidly in both academia and industry in recent years. As a key feature to improve the usability of such systems, keyword search is yet missing in existing blockchain-based cloud storage systems due to the encryption of uploaded files. To enable this important feature for blockchain-based cloud storage systems while preserving privacy, blockchain-based Symmetric Searchable Encryption schemes have attracted a lot of research interest. In this research, we pinpoint three important requirements for blockchain-based SSE systems to be practical. The first two requirements are fast query response and low on-chain storage cost. They are the key for a blockchain-based SSE system to be usable and feasible. The third requirement is soundness, which guarantees that dishonest behaviours from both users and service providers can be detected and prevented. To the best of our knowledge, none of the existing studies achieves these properties at the same time. To fill in this gap, we present a novel construction of the blockchain-based SSE system. We provide both theoretical analysis and empirical evaluation to show that the system achieves all the desired properties.

Original languageEnglish
Title of host publicationProceedings - 2023 IEEE 22nd International Conference on Trust, Security and Privacy in Computing and Communications, TrustCom/BigDataSE/CSE/EUC/iSCI 2023
EditorsJia Hu, Geyong Min, Guojun Wang
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages307-317
Number of pages11
ISBN (Electronic)9798350381993
DOIs
Publication statusPublished - 2023
Event22nd IEEE International Conference on Trust, Security and Privacy in Computing and Communications, TrustCom 2023 - Exeter, United Kingdom
Duration: 1 Nov 20233 Nov 2023

Publication series

NameProceedings - 2023 IEEE 22nd International Conference on Trust, Security and Privacy in Computing and Communications, TrustCom/BigDataSE/CSE/EUC/iSCI 2023

Conference

Conference22nd IEEE International Conference on Trust, Security and Privacy in Computing and Communications, TrustCom 2023
Country/TerritoryUnited Kingdom
CityExeter
Period1/11/233/11/23

Keywords

  • Blockchain
  • Efficiency
  • Searchable Encryption
  • Soundness

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