西安电子科技大学学报（自然科学版）Issue(5)：20-25,6.DOI:10.3969/j.issn.1001-2400.2015.05.004
支持多关键字的可搜索公钥加密方案
Public key encryption with multi-keywords search
摘要
Abstract
In order to improve the server -side keywords‐searching efficiency in public key encryption by keyword search schemes , we propose a method of constructing reciprocal maps based on lagrange polynomial and a public key encryption by multi‐keywords search scheme . In the scheme , each couple of reciprocal maps corresponds to a set of keywords . The sender makes ciphertext transformation for the set of keywords , and sends the result to the server . The receiver sends a searching‐keyword trapdoor to the server . The server can restore the ciphertext of the keyword corresponding to the trapdoor for matching , only if the keyword belongs to the set . Only one pair computing is required to finish multi‐keywords searching . The scheme is semantically secure in the standard model , and has a high efficiency of keywords searching with no restriction .关键词
可搜索加密/多搜索/安全性证明/隐私/云存储Key words
searchable encryption/multikeywords search/security proof/privacy/cloud storage分类
信息技术与安全科学引用本文复制引用
李昊星,李凤华,宋承根,苏铓,刘歆..支持多关键字的可搜索公钥加密方案[J].西安电子科技大学学报（自然科学版）,2015,(5):20-25,6.基金项目
国家自然科学基金资助项目（61170251）；数字版权保护技术研发工程资助项目（1681300000119）；国家863高技术研究发展计划资助项目（2012AA013102）；国家863高技术研究发展计划资助项目 （）
