An efficient conjunctive keyword searchable encryption for cloud-based IoT systems

IF 7.5 2区 计算机科学 Q1 TELECOMMUNICATIONS
Tianqi Peng , Bei Gong , Chong Guo , Akhtar Badshah , Muhammad Waqas , Hisham Alasmary , Sheng Chen
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引用次数: 0

Abstract

Data privacy leakage has always been a critical concern in cloud-based Internet of Things (IoT) systems. Dynamic Symmetric Searchable Encryption (DSSE) with forward and backward privacy aims to address this issue by enabling updates and retrievals of ciphertext on untrusted cloud server while ensuring data privacy. However, previous research on DSSE mostly focused on single keyword search, which limits its practical application in cloud-based IoT systems. Recently, Patranabis (NDSS 2021) [1] proposed a groundbreaking DSSE scheme for conjunctive keyword search. However, this scheme fails to effectively handle deletion operations in certain circumstances, resulting in inaccurate query results. Additionally, the scheme introduces unnecessary search overhead. To overcome these problems, we present CKSE, an efficient conjunctive keyword DSSE scheme. Our scheme improves the oblivious shared computation protocol used in the scheme of Patranabis, thus enabling a more comprehensive deletion functionality. Furthermore, we introduce a state chain structure to reduce the search overhead. Through security analysis and experimental evaluation, we demonstrate that our CKSE achieves more comprehensive deletion functionality while maintaining comparable search performance and security, compared to the oblivious dynamic cross-tags protocol of Patranabis. The combination of comprehensive functionality, high efficiency, and security makes our CKSE an ideal choice for deployment in cloud-based IoT systems.
基于云的物联网系统的高效连接关键字可搜索加密
在基于云的物联网(IoT)系统中,数据隐私泄露一直是一个关键问题。具有前向和后向隐私的动态对称可搜索加密(DSSE)旨在通过支持在不受信任的云服务器上更新和检索密文,同时确保数据隐私来解决此问题。然而,以往对DSSE的研究多集中在单一关键字搜索上,限制了其在基于云的物联网系统中的实际应用。最近,Patranabis (NDSS 2021)[1]提出了一个开创性的连接关键字搜索DSSE方案。但该方案在某些情况下不能有效处理删除操作,导致查询结果不准确。此外,该方案还引入了不必要的搜索开销。为了克服这些问题,我们提出了一种高效的连接关键字DSSE方案——CKSE。我们的方案改进了Patranabis方案中使用的遗忘共享计算协议,从而实现了更全面的删除功能。此外,我们引入了状态链结构来减少搜索开销。通过安全性分析和实验评估,我们证明与Patranabis的无意识动态交叉标签协议相比,我们的CKSE在保持相当的搜索性能和安全性的同时实现了更全面的删除功能。全面的功能,高效率和安全性的结合使我们的CKSE成为部署在基于云的物联网系统中的理想选择。
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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来源期刊
Digital Communications and Networks
Digital Communications and Networks Computer Science-Hardware and Architecture
CiteScore
12.80
自引率
5.10%
发文量
915
审稿时长
30 weeks
期刊介绍: Digital Communications and Networks is a prestigious journal that emphasizes on communication systems and networks. We publish only top-notch original articles and authoritative reviews, which undergo rigorous peer-review. We are proud to announce that all our articles are fully Open Access and can be accessed on ScienceDirect. Our journal is recognized and indexed by eminent databases such as the Science Citation Index Expanded (SCIE) and Scopus. In addition to regular articles, we may also consider exceptional conference papers that have been significantly expanded. Furthermore, we periodically release special issues that focus on specific aspects of the field. In conclusion, Digital Communications and Networks is a leading journal that guarantees exceptional quality and accessibility for researchers and scholars in the field of communication systems and networks.
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