AVirtual Cloud Storage Architecture for Enhanced Data Security  

作　　者：M.Antony Joans Kumar C.Christopher Columbus E.Ben George T.Ajith Bosco Raj 

机构地区：[1]Department of Information Technology,St.Xavier’s Catholic College of Engineering,Nagercoil,629003,Tamil Nadu,India [2]Department of Computer Science Engineering,PSN College of Engineering and Technology,Tirunelveli,627152,India [3]Department of Computer Science Engineering,University of Technology and Applied Sciences,Muscat,112,Oman [4]Department of Electronics and Communications Engineering,PSN College of Engineering and Technology,Tirunelveli,627152,India

出　　处：《Computer Systems Science & Engineering》2023年第2期1735-1747,共13页计算机系统科学与工程（英文）

摘　　要：The sensitive data stored in the public cloud by privileged users,such as corporate companies and government agencies are highly vulnerable in the hands of cloud providers and hackers.The proposed Virtual Cloud Storage Archi-tecture is primarily concerned with data integrity and confidentiality,as well as availability.To provide confidentiality and availability,thefile to be stored in cloud storage should be encrypted using an auto-generated key and then encoded into distinct chunks.Hashing the encoded chunks ensured thefile integrity,and a newly proposed Circular Shift Chunk Allocation technique was used to determine the order of chunk storage.Thefile could be retrieved by performing the opera-tions in reverse.Using the regenerating code,the model could regenerate the missing and corrupted chunks from the cloud.The proposed architecture adds an extra layer of security while maintaining a reasonable response time and sto-rage capacity.Experimental results analysis show that the proposed model has been tested with storage space and response time for storage and retrieval.The VCSA model consumes 1.5x(150%)storage space.It was found that total storage required for the VCSA model is very low when compared with 2x Replication and completely satisfies the CIA model.The response time VCSA model was tested with different sizedfiles starting from 2 to 16 MB.The response time for storing and retrieving a 2 MBfile is 4.96 and 3.77 s respectively,and for a 16 MBfile,the response times are 11.06 s for storage and 5.6 s for retrieval.

关 键 词：Erasure code regenerating code CRYPTOGRAPHY virtual cloud storage architecture circular shift chunk allocation algorithm 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]