云储存中利用属性基加密技术的安全数据检索方案

本文提出了一种利用属性基加密(ABE)技术的安全数据检索方案。首先,利用ABE提供丰富的索引词表达能力,从而确保数据安全性；然后,通过平衡云服务提供商运行开销和其它用户参与基于云存储的信息检索服务；最后,使用加密运算替代穷尽搜索,使得搜索过程与现存数据库管理系统机制更加兼容。分析结果表明,相比其他几种较新的方案,本文方案在访问控制和快速搜索中具有更好的性能,且能在数据检索过程中确保数据安全性和用户隐私,适合应用于具有大量数据的云存储系统。

Implementation of secure data retrieval schema in cloud storage by using ABE technology

AbstractTo solve the poor performance of traditional method in retrieving encrypted data in cloud storage, an efficient data retrieval method using attributed-based encryption is proposed. Firstly, rich expressiveness of index terms are provided by exploiting ABE, thus providing data security. Then, the searching efficiency is enhanced by balancing operational overhead among the CSP and other users involved in the cloud storage-based information retrieval service. The results show that proposed schema performances better than other newly schemes in access control and fast searches, and the data security and user privacy can be guaranteed during the data retrieval process. Proposed schema is suitable for cloud storage systems with huge data.