期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2014
卷号：5
期号：3
页码：3239-3241
出版社：TechScience Publications
摘要：In cloud computing, due to large number of data users and documents, it is crucial for the search service to allow multi-keyword query and provide result similarity ranking to meet the effective data retrieval need. The searchable symmetric encryption focuses on single keyword search or Boolean keyword search, and rarely differentiates the search results. This leads to a few issues like Singlekeyword search without ranking, Boolean- keyword search without ranking, Single-keyword search with ranking. We define and solve the challenging problem of privacypreserving multi-keyword ranked search over encrypted cloud data (MRSE) by proposing an efficient and more secure algorithm. We also introduce the concept of keyword buffer controller that allows for quick search of documents and establish a set of strict privacy requirements for such a secure cloud data utilization system to become a reality
关键词：Cloud; data privacy; ranking; similarity;relevance;keyword buffer controller
