DEDUPLICATION IN CLOUD COMPUTING AND SECURE DATA ACCESS CONTROL

Computer Science And Engineering

NATIONAL CONFERENCE ON TECHNOLOGICAL ADVANCEMENTS IN ENGINEERING

Deduplication is the process that eliminates the duplicated copies of data stored at cloud. The advantages of deduplication is high space and cost savings. In this paper, Data owner is only active at the time of deduplication. Here, block level deduplication can be performed at CSP. Data owner wants to control not only data access but also its storage and usage. After deduplication data can be access securely from the cloud. The same data, although in an encrypted form, is only saved once at the cloud but can be accessed by different users based on the data owners’ policies. Here, Elliptic Curve Digital Signature Algorithm (ECDS) can be used to maintain the data integrity of the data at the cloud. This algorithm can be executed by the third party who is trusted, it is an external entity related to the cloud. Access control is a security mechanism is to provide outsource able data security.

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