摘要
为保证云端敏感数据安全性的同时提高数据共享效率,提出了一种安全、灵活、高效的基于属性的关键词搜索加密方案。方案中设计了一种需要数据拥有者私钥参与的索引生成机制抵抗关键词猜测攻击,基于线性秘密共享访问结构描述用户的搜索权限,支持一对多应用场景,借鉴连接子集关键词搜索技术和在线/离线思想提高搜索的灵活性和效率。理论分析与实验评估结果表明,该方案具有较高的效率。
To safeguard the sensitive data stored on the cloud and promote the efficiency of data sharing simulta- neously, a secure flexible and efficient attribute-based encryption scheme with keyword search is proposed, which designs an index generation mechanism that requires the private key of data owner to resist the keyword guessing attack, supports one-to-many application scenarios based on the linear secret shared access structure, introduces the conjunctive subset keyword search technique and online/offline technique to improve search flexibility and efficien- cy. Theoretical analysis and experimental evaluation show that the proposed scheme enjoys high efficiency.
出处
《网络与信息安全学报》
2017年第11期1-11,共11页
Chinese Journal of Network and Information Security
基金
国家重点研发计划基金资助项目(No.2016YFB0501900)~~
关键词
可搜索加密
关键词猜测攻击
连接关键词
在线
离线
searchable encryption, keyword guessing attack, conjunctive keyword, online/offline
