首页> 外文期刊>Future generation computer systems >Secure conjunctive multi-keyword ranked search over encrypted cloud data for multiple data owners
【24h】

Secure conjunctive multi-keyword ranked search over encrypted cloud data for multiple data owners

机译:为多个数据所有者在加密的云数据上进行安全的联合多关键字排名搜索

获取原文
获取原文并翻译 | 示例
           

摘要

Recently, secure search over encrypted cloud data has become a hot research spot and challenging task. A number of secure search schemes have been proposed to try to meet this challenge. However, most of them only consider the single data owner model. In this paper, we propose a conjunctive multi-keyword ranked secure search scheme for multiple data owners. To guarantee data security and system flexibility in the multiple data owners environment, we design an ingenious secure query scheme that allows each data owner to adopt randomly chosen temporary keys to build secure indexes for different data files. An authorized data user does not need to know these temporary keys of constructing indexes and can instead randomly choose another temporary query keys to encrypt query keywords, while the cloud server can correctly perform keywords matching over encrypted data files. To rank the query results of a conjunctive multi-keyword query, the cloud server computes the similarity scores between the query and its query results according to encrypted relevance scores of keywords without obtaining any sensitive information. Extensive experiments demonstrate the correctness and practicality of the proposed scheme. (C) 2019 Elsevier B.V. All rights reserved.
机译:最近,对加密的云数据进行安全搜索已成为研究的热点和挑战性的任务。已经提出了许多安全搜索方案来尝试应对这一挑战。但是,其中大多数仅考虑单个数据所有者模型。在本文中,我们提出了一种针对多个数据所有者的联合多关键字排序安全搜索方案。为了保证在多个数据所有者环境中的数据安全性和系统灵活性,我们设计了一种巧妙的安全查询方案,该方案允许每个数据所有者采用随机选择的临时密钥为不同数据文件建立安全索引。授权的数据用户不需要知道这些构造索引的临时密钥,而是可以随机选择另一个临时查询密钥来加密查询关键字,而云服务器可以正确地对加密数据文件执行关键字匹配。为了对联合多关键字查询的查询结果进行排名,云服务器在不获取任何敏感信息的情况下,根据关键字的加密相关性分数来计算查询与其查询结果之间的相似度。大量的实验证明了该方案的正确性和实用性。 (C)2019 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号