Secure Deduplication Scheme for Cloud Encrypted Data

Autor: Shubhanshi Singhal, Vishal Passricha, Ashish Chopra
Rok vydání: 2019
Předmět:
Zdroj: International Journal of Advanced Pervasive and Ubiquitous Computing. 11:27-40
ISSN: 1937-9668
1937-965X
DOI: 10.4018/ijapuc.2019040103
Popis: Cloud storage (CS) is gaining much popularity nowadays because it offers low-cost and convenient network storage services. In this big data era, the explosive growth in digital data moves the users towards CS but this causes a lot of storage pressure on CS systems because a large volume of this data is redundant. Data deduplication is an effective data reduction technique. The dynamic nature of data makes security and ownership of data as a very important issue. Proof-of-ownership schemes are a robust way to check the ownership claimed by any owner. However, this method affects the deduplication process because encryption methods have varying characteristics. A convergent encryption (CE) scheme is widely used for secure data deduplication. The problem with the CE-based scheme is that the user can decrypt the cloud data while he has lost his ownership. This article addresses the problem of ownership revocation by proposing a secure deduplication scheme for encrypted data. The proposed scheme enhances the security against unauthorized encryption and poison attack on the predicted set of data.
Databáze: OpenAIRE