基于CP_ABE与二叉树偏码的匿名乱序云存储策略  

Re-encrypted Anonymous Out-of-order Cloud Storage Strategy Based on CP_ABE and Binary Tree Coding

作　　者：刘玉玲[1] 靳义青 田俊峰[2] 

机构地区：[1]河北大学计算中心,河北保定071002 [2]河北大学计算机科学与技术学院,河北保定071002

出　　处：《小型微型计算机系统》2015年第4期845-851,共7页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(60873203;61170254)资助;河北省自然科学基金项目(F2012201145;F2014201117)资助;河北省高等学校科学技术研究重点项目(ZH2012029)资助

摘　　要：随着云计算技术的应用及发展,作为其基础组成部分的云存储及其安全性问题成为目前研究的重点.然而,现阶段技术条件下,云存储依然存在数据安全性和保密性等安全问题,这是云存储发展的所必须解决的问题.针对云存储中数据共享及保密性问题,提出了一个基于属性的匿名云存储策略RACSS.建立云访问控制模型,采用对称非对称加密算法加密数据明文,使用CP_ABE算法建立访问控制体系,实现多用户数据共享,并结合二叉树前缀编码及匿名乱序存储方法存储数据,在不可信的云存储环境下,保证数据的安全存储.最后对RACSS进行了安全性分析和比较分析.With the application and development of cloud computing, cloud storage as a basic component of cloud computing, its secur- ity issues become the focus of current research. However,under technical conditions at this stage,cloud storage data still exists secure and privacy issues, this is the problem that the cloud storage development must be solved. Based on the attribute and Binary tree code, a anonymous out-of-order cloud storage strategy was proposed（RACSS） to solve the data sharing and confidentiality issues in cloud storage. Building up could access control model,using symmetric and asymmetric encryption algorithm to encrypt plalntext data,using CP_ABE algorithm to construct the access control system for realizing the sharing of Multi-user data, and combining the binary tree coding and anonymous out-of-order storage method to store data,the paper guaranteed the security of data storage under the untrusted cloud storage environment. Finally,the safety analysis and comparison analysis were given for RACSS.

关 键 词：云存储 访问控制 匿名存储 存储策略 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]