文章基本信息

标题：Efficient Multi-User Keyword Search over Encrypted Data in Cloud Computing
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作者：Li, Jin ; Chen, Xiaofeng
期刊名称：COMPUTING AND INFORMATICS
印刷版ISSN：1335-9150
出版年度：2013
卷号：32
期号：4
页码：723-738
语种：English
出版社：COMPUTING AND INFORMATICS
摘要：As cloud computing becomes prevalent, more and more sensitive information are being centralized into the cloud. For the protection of data privacy, sensitive data usually have to be encrypted before outsourcing, which makes effective data utilization a very challenging task. In this paper, we propose a new method to enable effective fuzzy keyword search in a multi-user system over encrypted cloud data while maintaining keyword privacy. In this new system, differential searching privileges are supported, which is achieved with the technique of attribute-based encryption. Edit distance is utilized to quantify keywords similarity and develop fuzzy keyword search technique, which achieve optimized storage and representation overheads. We further propose a symbol-based trie-traverse searching scheme to improve the search efficiency. Through rigorous security analysis, we show that our proposed solution is secure and privacy-preserving, while correctly realizing the goal of fuzzy keyword search with multiple users.
关键词：Keyword search, fuzzy, multi-user, cloud computing;94A60