基于云计算的优化审计方案

Optimized Audit Scheme Based on Cloud Computing

针对目前完整性验证中第三方审计存在效率低、开销大、无法支持动态数据,以及哈希值对比验证、审计模型等方案无法满足云计算数据存储的安全问题,提出了一种基于云计算的优化审计方案。方案在数据存储阶段设计一个包括角色库访问控制、加密和签名验证的三层安全架构;在数据签名验证阶段基于双线性群的组密钥协议进行数据审计;并通过安全性分析、性能实验对比,证明该认证方案有较强的安全性及较高的计算效率。

In view of the existing problems of low efficiency,high cost,unable to support dynamic data,hash comparison verification,audit model and other solutions in integrity verification,an optimized audit scheme based on cloud computing is proposed.In the data storage stage,a three-layer security architecture is designed,including access control,encryption and signature verification of the role database.In the stage of data signature verification,the group key protocol based on bilinear group is used for data audit.Through security analysis and performance experiment comparison,it is proved that the authentication scheme has stronger security and higher computing efficiency.