中国邮电高校学报(英文) ›› 2023, Vol. 30 ›› Issue (2): 83-95.doi: 10.19682/j.cnki.10058885.2022.0023

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Dynamic multi-keyword fuzzy ranked search with leakage resilience over encrypted cloud data

周由胜1,黄妙2,刘媛妮3,陈自刚4   

  1. 1. 重庆邮电大学,网络空间安全与信息法学院
    2. 重庆邮电大学计算机科学与技术学院
    3. 重庆邮电大学
    4. 重庆邮电大学网络空间安全与信息法学院
  • 收稿日期:2021-12-20 修回日期:2022-06-23 出版日期:2023-04-30 发布日期:2023-04-27
  • 通讯作者: 周由胜 E-mail:zhouys@cqupt.edu.cn

Dynamic multi-keyword fuzzy ranked search with leakage resilience over encrypted cloud data

Zhou Yousheng, Huang Miao, Liu Yuanni, Chen Zigang   

  • Received:2021-12-20 Revised:2022-06-23 Online:2023-04-30 Published:2023-04-27
  • Contact: You-Sheng YouZHOU E-mail:zhouys@cqupt.edu.cn

摘要:

To achieve the confidentiality and retrievability of outsourced data simultaneously, a dynamic multi-keyword fuzzy ranked search scheme (DMFRS) with leakage resilience over encrypted cloud data based on two-level index structure was proposed. The first level index adopts inverted index and orthogonal list, combined with 2-gram and location-sensitive Hashing (LSH) to realize a fuzzy match. The second level index achieves user search permission decision and search result ranking by combining coordinate matching with term frequency-inverse document frequency (TF-IDF). A verification token is generated within the results to verify the search results, which prevents the potential malicious tampering by cloud service providers (CSP). The semantic security of DMFRS is proved by the defined leakage function, and the performance is evaluated based on simulation experiments. The analysis results demonstrate that DMFRS gains certain advantages in security and performance against similar schemes, and it meets the needs of storage and privacy-preserving for outsourcing sensitive data.

关键词: secure search| multi-keyword| fuzzy, rank| dynamic| privacy-preserving

Abstract:

To achieve the confidentiality and retrievability of outsourced data simultaneously, a dynamic multi-keyword fuzzy ranked search scheme (DMFRS) with leakage resilience over encrypted cloud data based on two-level index structure was proposed. The first level index adopts inverted index and orthogonal list, combined with 2-gram and location-sensitive Hashing (LSH) to realize a fuzzy match. The second level index achieves user search permission decision and search result ranking by combining coordinate matching with term frequency-inverse document frequency (TF-IDF). A verification token is generated within the results to verify the search results, which prevents the potential malicious tampering by cloud service providers (CSP). The semantic security of DMFRS is proved by the defined leakage function, and the performance is evaluated based on simulation experiments. The analysis results demonstrate that DMFRS gains certain advantages in security and performance against similar schemes, and it meets the needs of storage and privacy-preserving for outsourcing sensitive data.

Key words: secure search| multi-keyword| fuzzy, rank| dynamic| privacy-preserving