计算机工程与应用2016，Vol.52Issue(22)：93-98,6.DOI:10.3778/j.issn.1002-8331.1605-0318
支持多关键字分级的可搜索同态加密方案
Searchable homomorphic encryption scheme supporting multi-keyword ranking
摘要
Abstract
To satisfy the requirement for multi-keyword searching over encrypted data, and solve the problem of privacy preserving and data security of the users, a modified multi-keyword ranked searchable encryption scheme is proposed. The scheme utilizes the vector space model to construct the searchable index and uses the improved homomorphic encryp-tion algorithm to encrypt and decrypt data. It also supports the ranked result, which effectively avoid returning the low relevance documents. Further thorough security analysis and performance evaluations show that the scheme provides CCA2 security and how effectively improves system performance and reduce communication cost and eliminates unneces-sary traffic.关键词
多分级检索/同态加密/向量空间模型/云计算Key words
multi-keyword ranked search/hommomorphic encryption/vector space model/cloud computing分类
信息技术与安全科学引用本文复制引用
李宏霞,庞晓琼..支持多关键字分级的可搜索同态加密方案[J].计算机工程与应用,2016,52(22):93-98,6.基金项目
国家自然科学基金（No.61379125）；山西省青年自然科学基金（No.201601D021075）；山西省高等学校科技创新项目（No.2014143）；山西省回国留学人员科研项目（No.2015-083）。 （）
