基于代理重加密的云数据共享机制的研究与实现  

Research and implementation of cloud data sharing mechanism based on proxy re-encryption

作　　者：庞岩梅[1] 李晓东[1] 叶思水 

机构地区：[1]北京电子科技学院计算机学院,北京100070

出　　处：《南京理工大学学报》2015年第1期84-88,共5页Journal of Nanjing University of Science and Technology

基　　金：中央高校基本科研业务费专项资金资助(YZDJ1201;2013)

摘　　要：为了使得云端数据能灵活安全地进行共享,该文对基于代理重加密的共享机制进行了研究。该文利用代理重加密实现代理授权,设计了一种云端数据授权共享方案。代理重加密算法使用了双线性对,其安全性基于判定双线性Diffie-Hellman(Decisional bilinear Diffie-Hellman,DBDH)假设。在该方案基础上,实现了一个基于Hadoop云存储平台的云端数据共享原型系统,对其进行了测试和分析。该系统的数据共享具有高效性和安全性。该文工作对代理重加密在云端数据共享中的应用具有借鉴价值。To improve the flexibility and security of cloud data sharing,a proxy re-encryption based scheme is researched. A cloud data authorization and sharing solution is designed on proxy of data authorization through proxy re-encryption. The proxy re-encryption algorithm uses bilinear paring.The security is based on Decisional Bilinear Diffie-Hellman（ DBDH） hypothesis. A cloud data sharing prototype system is implemented on a Hadoop cloud platform. The test and analysis show the data sharing is effective and secure. The work is valuable in application of proxy re-encryption in cloud data sharing.

关 键 词：代理重加密 云存储 数据授权 数据共享 双线性对 判定双线性Diffie-Hellman HADOOP 

分 类 号：TH16[机械工程—机械制造及自动化]