Earticle

초록

영어

With the development of cloud computing, the sensitive information of outsourced data is at risk of unauthorized accesses. To protect data privacy, the sensitive data should be encrypted by the data owner before outsourcing, which makes the traditional and efficient plaintext keyword search technique useless. Hence, it is an especially important thing to explore secure encrypted cloud data search service. Considering the huge number of outsourced data, there are three problems we are focused on to enable efficient search service: multi-keyword search, result relevance ranking and dynamic update. In this paper, we propose a practically efficient and flexible searchable encrypted scheme which supports both multi-keyword ranked search and dynamic update. To support multi-keyword search and result relevance ranking, we adopt Vector Space Model (VSM) to build the searchable index to achieve accurate search result. To improve search efficiency, we design a tree-based index structure which supports insertion and deletion update well without privacy leakage. We propose a secure search scheme to meet the privacy requirements in the threat model. Finally, experiments on real-world dataset are implemented to demonstrate the overall performance of the proposed scheme, which show our scheme is efficient.

목차

Abstract
 1. Introduction
 2. Related Work
  2.1. Single Keyword Searchable Encryption
  2.2. Multi-keyword Searchable Encryption
 3. Problem Formulation
  3.1. System Model
  3.2. Threat Model
  3.3. Design Goals
  3.5. Preliminaries
 4. Secure Index Scheme
 5. Dynamic Update
 6. Security Analysis
 7. Performance Analysis
  7.1. Index Tree Construction
  7.2. Query Generation
  7.3. Search Efficiency
 8. Conclusions and Future Work
 Acknowledgements
 References

키워드

저자

• Xingming Sun [ College of Computer and Software & Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science and Technology, Nanjing210044, China ]
• Lu Zhou [ College of Computer and Software & Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science and Technology, Nanjing210044, China ]
• Zhangjie Fu [ College of Computer and Software & Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science and Technology, Nanjing210044, China ]
• Jin Wang [ College of Computer and Software & Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science and Technology, Nanjing210044, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605