摘要
针对对称可搜索加密技术在密文检索方面效率不足的问题,提出一种轻量级的对称可搜索加密方案。将包含相同关键词的密文文件进行分类存储,构建一种隐藏结构,并在原基础上添加包含相同关键词的密文文件,不需重新构建;检索时,服务器通过查找首个包含关键词的密文文件,便可根据相关性查找到其余包含该关键词的密文文件。仿真结果表明,该方案在具有较高的索引生成效率与令牌生成效率的同时也具有高效的密文检索效率。
To deal with insufficient efficiency of current symmetric searchable encryption technology in searching on encrypted data,a lightweight symmetric searchable encryption scheme is proposed.In this scheme,a ciphertext file containing the same keywords is classified and stored,and a hidden structure is built.When adding a ciphertext file containing the same keywords,it can be added on the original basis without rebuilding.The server can find the rest of the ciphertext files containing the keywords based on the relevance after finding out the first ciphertext file containing keywords.Simulation results show that the proposed scheme has high index generation efficiency and token generation efficiency,and also has efficient ciphertext retrieval efficiency.
作者
郑东
王清瀚
秦宝东
ZHENG Dong;WANG Qinghan;QIN Baodong(School of Cyberspace Security,Xi'an University of Posts and Telecommunications,Xi'an 710121,China)
出处
《西安邮电大学学报》
2020年第3期1-6,共6页
Journal of Xi’an University of Posts and Telecommunications
基金
国家自然科学基金项目(61872292)。
关键词
对称可搜索加密
轻量级
云计算
symmetric searchable encryption
lightweight
cloud computing
