基于部分授权的可证明数据持有性验证

发布时间：2018-04-19 04:38

本文选题：可证明数据持有性验证 + 双线性对　；参考：《计算机研究与发展》2015年10期

【摘要】：可证明数据持有性验证(provable data possession,PDP)是云存储中重要的完整性验证技术,采用可证明数据持有验证,客户可通过常量级运算验证云服务器是否诚实地持有客户数据.某些情况下,客户无法亲自验证云端的数据持有,此时客户需要授权代理对云端数据进行持有验证.针对上述问题,提出了一种基于部分授权的可证明数据持有验证方案(provable data possession based on partial delegation,PDPPD),新方案基于双线性对及部分授权技术支持数据拥有者直接通过密钥变形方式委任代理方进行数据持有验证,并且数据拥有者可以随时撤销或更换代理方,证明了方案的安全性.与现有数据持有性验证方案相比,新方案在保证相同安全强度的条件下,具有更小的计算量和通信量,且应用场景更加广泛.
[Abstract]:Provable data possessionPDP) is an important integrity verification technique in cloud storage. Using verifiable data holding verification, customers can verify whether the cloud server honestly holds customer data through constant operation.In some cases, the customer can not personally verify the cloud data holding, when the client needs authorization agent to hold the cloud data validation.In response to the above problems,In this paper, a provable data possession based on partial delegation based on partial authorization is proposed. The new scheme is based on bilinear pairings and partial authorization technology to support the data owner to appoint the agent directly through key transformation to verify the data holding.And the data owner can cancel or replace the agent at any time, which proves the security of the scheme.Compared with the existing data holding verification scheme, the new scheme has less computation and communication traffic under the condition of the same security intensity, and the application scenario is more extensive.
【作者单位】：电子科技大学信息与软件工程学院;
【基金】：国家自然科学基金项目(61472064) 四川省科技支撑基金项目(2015GZ0095) 中央高校基本科研业务费基础研究项目(YGX2013J072)
【分类号】：TP333

【共引文献】