支持策略检索的属性基可搜索加密方案  

Attribute-based searchable encryption scheme supporting strategy retrieval

作　　者：李红[1,2] 汪学明 LI Hong;WANG Xue-ming(State Key Laboratory of Public Big Data,Guizhou University,Guiyang 550025,China;College of Computer Science and Technology,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学公共大数据国家重点实验室,贵州贵阳550025 [2]贵州大学计算机科学与技术学院,贵州贵阳550025

出　　处：《计算机工程与设计》2024年第11期3209-3215,共7页Computer Engineering and Design

基　　金：国家自然科学基金项目(61163049);贵州省自然科学基金项目(黔科合J字(7641))。

摘　　要：为解决现有属性基可搜索加密方案仅支持单关键词检索或联合多关键词检索的问题,提升用户检索的灵活性,提出一种支持策略检索的属性基可搜索加密方案。使用LSSS(linear secret sharing schemes)技术构造用户检索陷门,支持任意单调布尔公式表示的搜索策略。结合属性加密实现对密文细粒度的访问控制。通过与现有方案进行计算和存储效率的对比分析,并进行实验仿真,结果表明,提出的方案在效率和安全性方面均有显著提升。To solve the problem that the existing attribute-based searchable encryption scheme only supports single-keyword retrieval or joint multi-keyword retrieval,and to improve the flexibility of user retrieval,an attribute-based searchable encryption scheme supporting strategy retrieval was proposed.The LSSS(linear secret sharing schemes)technology was used to construct user retrieval trapdoors and support any search strategy expressed by monotone Boolean formula.Combined with the attribute encryption,fine-grained access control to ciphertext was realized.Through the comparative analysis of computing and storage efficiency of the proposed method with that of existing schemes,results indicate that the proposed scheme is significantly improved in terms of the efficiency and security.

关 键 词：可搜索加密 属性加密 策略检索 访问控制 数据共享 云存储 隐私保护 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]