Hybrid Cloud Security by Revocable KUNodes-Storage with Identity-Based Encryption  

作　　者：S.Saravanakumar S.Chitra 

机构地区：[1]Department of Information Technology,Paavai Engineering College,Namakkal,637018,India [2]Department of Computer Science and Engineering,Er.Perumal Manimekalai College of Engineering,Hosur,63117,India

出　　处：《Computer Systems Science & Engineering》2022年第12期985-996,共12页计算机系统科学与工程（英文）

摘　　要：Cloud storage is a service involving cloud service providers providingstorage space to customers. Cloud storage services have numerous advantages,including convenience, high computation, and capacity, thereby attracting usersto outsource data in the cloud. However, users outsource data directly via cloudstage services that are unsafe when outsourcing data is sensitive for users. Therefore, cipher text-policy attribute-based encryption is a promising cryptographicsolution in a cloud environment, and can be drawn up for access control by dataowners (DO) to define access policy. Unfortunately, an outsourced architectureapplied with attribute-based encryption introduces numerous challenges, including revocation. This issue is a threat to the data security of DO. Furthermore,highly secure and flexible cipher text-based attribute access control with role hierarchy user grouping in cloud storage is implemented by extending the KUNodes(revocation) storage identity-based encryption. Result is evaluated using Cloudsim, and our algorithm outperforms in terms of computational cost by consuming32 MB for 150-MB files.

关 键 词：Cloud computing storage identification based revocation attribute based access control encryption DECRYPTION 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]