Abstract

The Journal of Surveillance, Security and Safety is an international, peer-reviewed, open access journal which provides a forum for the publication of papers addressing the variety of theoretical, methodological, epistemological, empirical and practical issues concerns reflected in the field of information security, cyber security, machine learning, emerging technologies, and their applications.

Highlights

  • With the advent of cloud computing, data owners are motivated to outsource their personal data from local repositories to the cloud to increase flexibility, convenience and to reduce the burden of the local data maintenance costs

  • In this paper, we address the problem of leakless privacy-preserving multi-keyword ranked search over encrypted cloud data (LRSE), and our new contributions address challenging problems of search pattern, and cooccurrence information leakage in the cloud

  • This paper tackles the problem of leakless privacy preserving multi-keyword ranked search over encrypted cloud data (LRSE), and we solve the problem of search pattern, and co-occurrence private information leakage

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Summary

Conclusion

Our security and performance analysis shows that the proposed scheme guarantees a high level of privacy/security and efficiency.

INTRODUCTION
System model
Threat model
PRIVACY REQUIREMENTS
Search Pattern Privacy
Co-occurrence Keyword Privacy
LRSE SCHEME
Scheme I - sequential scan
Scheme II - Index
PRIVACY AND PERFORMANCE ANALYSIS
Entropy of LRSE Document Vectors
Result completeness
Security
Efficiency and System Costs
IMPLEMENTATION AND ANALYSIS
Result
Result Accuracy
Entropy of Document Vectors
Query Vectors
Euclidean Distance from Ideal Vector
RELATED WORK
CONCLUSIONS
Full Text
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