基于属性的可搜索加密综述

doi:10.11896/jsjkx.231100137

摘要/Abstract

摘要： 随着大数据时代的到来,数据规模和复杂性持续增加,对数据隐私和安全保障的需求也日益迫切。然而,传统的加密方法无法满足在大规模数据集中进行高效搜索的需求。为了解决这一问题,可搜索加密技术引入了陷门函数和其他密码学技术,使得无需解密整个数据集即可在加密的数据中进行搜索。然而,单独采用可搜索加密仍无法满足现实世界中复杂的数据访问控制需求。因此,研究人员将属性基加密的概念引入可搜索加密,从而实现了属性基可搜索加密体制,旨在实现在加密的数据集合中按属性进行高效搜索的功能。属性基可搜索加密在隐私保护、数据共享和云计算等领域具有广泛的应用前景,从隐私保护增强、计算效率提升以及灵活性增强3个方面对其发展趋势进行了阐述,并介绍了涉及到的相关方案。在隐私保护增强方面,主要讨论了策略隐藏技术、权限管理技术以及安全性增强技术;针对效率优化的方案主要涉及外包计算、在线/离线加密机制以及索引结构优化等。同时,在灵活增强方面讨论了属性基可搜索加密在访问策略表达能力和搜索能力方面的提升。此外,还介绍了几个常见的应用领域,并总结了研究人员提出的相关方案。最后,讨论了属性基可搜索加密面临的挑战以及未来方向。

关键词: 基于属性的加密, 可搜索加密, 属性基可搜索加密, 隐私保护, 数据共享, 云计算

Abstract: With the advent of the big data era,the size and complexity of data continue to increase,which makes the requirement for data privacy and security increasingly urgent.However,traditional encryption methods cannot meet the demand for efficient searching in large-scale datasets.To address this problem,searchable encryption introduces trapdoor functions and other cryptographic techniques that allow searching in encrypted data without decrypting the entire dataset.However,searchable encryption alone still cannot meet the complex data access control needs in the real world.Therefore,researchers have introduced the concept of attribute-based encryption into searchable encryption,resulting in attribute-based searchable encryption.This approach aims to achieve efficient search by attributes in encrypted data sets.Attribute-based searchable encryption has a wide range of applications in the fields of privacy protection,data sharing and cloud computing.In this paper,we describe the development trends in terms of enhancing privacy protection,improving computational efficiency,and increasing flexibility.We also present the related schemes involved.In terms of enhancing privacy protection,we discusstechniques such as policy hiding,permission management,and securi-ty enhancement.The current methods for optimizing efficiency primarily involve outsourcing computation,online/offline encryption mechanisms,and index structure optimization,among others.Additionally,the improvement of the attribute-based searchable encryption scheme in terms of access policy expression ability and search capability is discussed.In addition,this paper introduces several common application areas and summarizes the relevant schemes proposed by researchers.In addition,it discusses the challenges and future directions of attribute-based searchable encryption.

Key words: Attribute-based encryption, Searchable encryption, Attribute-based searchable encryption, Privacy preservation, Data sharing, Cloud computing

中图分类号:

TP309

严莉, 殷田, 刘培顺, 冯洪新, 王高洲, 张闻彬, 呼海林, 潘法定. 基于属性的可搜索加密综述[J]. 计算机科学, 2024, 51(11A): 231100137-12. https://doi.org/10.11896/jsjkx.231100137

YAN Li, YIN Tian, LIU Peishun, FENG Hongxin, WANG Gaozhou, ZHANG Wenbin, HU Hailin, PAN Fading. Overview of Attribute-based Searchable Encryption[J]. Computer Science, 2024, 51(11A): 231100137-12. https://doi.org/10.11896/jsjkx.231100137

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