Title
Better Accuracy and Efficiency for Fuzzy Search on Encrypted Data.
Abstract
As cloud computing becomes prevalent in recent years, more and more enterprises and individuals outsource their data to cloud servers. To avoid privacy leaks, outsourced data usually is encrypted before being sent to cloud servers, which disables traditional search schemes for plain text. To meet both ends, security, and searchability, search-supported encryption is proposed. However, many previous schemes suffer severe vulnerability when typos and semantic diversity exist in query requests. To overcome such flaw, higher error-tolerance is always expected for search-supported encryption design, sometimes defined as u0027fuzzy searchu0027. In this paper, we propose a new scheme of multi-keyword fuzzy search scheme over encrypted and outsourced data. Our approach introduces a new mechanism to map a natural language expression into a word-vector space. Compared with previous approaches, our design shows higher robustness when multiple kinds of typos are involved. Besides, our approach is enhanced with novel data structures to improve search efficiency. These two innovations can work well contributing to accuracy and efficiency respectively. And these designs will not hurt the fundamental security. Experiments on real-world dataset demonstrate the effectiveness of our proposed approach, which outperforms currently popular approaches focusing on similar tasks as well.
Year
Venue
DocType
2019
arXiv: Cryptography and Security
Journal
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Jinkun Cao111.36
Jinhao Zhu200.68
Liwei Lin312228.76
RuHui ma412023.20
Haibing Guan51106105.35