一种基于云存储的多服务器多关键词可搜索加密方案
发布时间：2018-08-28 08:02
【摘要】：在可搜索加密的云服务中,数据拥有者往往更希望将数据文件以密文的形式分别存储到多个云服务器,从而提高授权用户对云端数据的检索效率以及对大型数据的处理能力。基于此,该文提出一种基于云存储的多服务器多关键词多用户可搜索加密方案,该方案被证明是IND-CKA(adaptive Chosen Keyword Attack)安全的,且同时具备关键词陷门的安全性。相对于单服务器可搜索加密,该方案在保证数据机密性的前提下能够对其进行高效检索,并能够在关键字索引中不完全包含所检索的多个关键词或者不存在某个文件包含所有被检索的多个关键词的情况下,更精确地进行检索。
[Abstract]:In searchable and encrypted cloud services, data owners often prefer to store data files in ciphertext to multiple cloud servers in order to improve the retrieval efficiency of cloud data and the processing ability of large scale data. Based on this, a multi-server multi-keyword searchable encryption scheme based on cloud storage is proposed. The scheme is proved to be IND-CKA (adaptive Chosen Keyword Attack) secure and has the security of keyword trapping at the same time. Compared with the searchable encryption on a single server, this scheme can efficiently retrieve the data under the premise of ensuring the confidentiality of the data. And it can retrieve more accurately in the case that the keyword index does not completely contain the retrieved multiple keywords or if a file does not contain all the retrieved keywords.
【作者单位】： 南京邮电大学计算机学院;江苏省无线传感网高技术研究重点实验室;
【基金】：国家自然科学基金(61373017,61373138,61300240,61672297) 国家博士后基金(2015M570468,2016T90485) 江苏省自然科学基金(BK20151511) 江苏省六大人才高峰项目(DZXX-017) 江苏省无线传感网高技术研究重点实验室基金(WSNLBZY 201516) 江苏省研究生培养创新工程项目(KYLX15_0853)~~
【分类号】：TP333;TP309.7
[Abstract]:In searchable and encrypted cloud services, data owners often prefer to store data files in ciphertext to multiple cloud servers in order to improve the retrieval efficiency of cloud data and the processing ability of large scale data. Based on this, a multi-server multi-keyword searchable encryption scheme based on cloud storage is proposed. The scheme is proved to be IND-CKA (adaptive Chosen Keyword Attack) secure and has the security of keyword trapping at the same time. Compared with the searchable encryption on a single server, this scheme can efficiently retrieve the data under the premise of ensuring the confidentiality of the data. And it can retrieve more accurately in the case that the keyword index does not completely contain the retrieved multiple keywords or if a file does not contain all the retrieved keywords.
【作者单位】： 南京邮电大学计算机学院;江苏省无线传感网高技术研究重点实验室;
【基金】：国家自然科学基金(61373017,61373138,61300240,61672297) 国家博士后基金(2015M570468,2016T90485) 江苏省自然科学基金(BK20151511) 江苏省六大人才高峰项目(DZXX-017) 江苏省无线传感网高技术研究重点实验室基金(WSNLBZY 201516) 江苏省研究生培养创新工程项目(KYLX15_0853)~~
【分类号】：TP333;TP309.7
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