secure and effective cloud information deduplication in encrypted cloud ndata
D.Ashifa,K.Thendral,R.Selvam,M.E.,Ph.D.,
Published in International Journal of Advanced Research in Computer Science Engineering and Information Technology
ISSN: 2321-3337 Impact Factor:1.521 Volume:6 Issue:3 Year: 09 April,2021 Pages:1569-1574
Abstract
Deduplication eliminates duplicated data copies and reduces storage costs of cloud service providers. However, deduplication of encrypted data is difficult. Current solutions rely heavily on trusted third parties, and do not address the popularity of data, resulting in unsatisfying security and efficiency. A secure encrypted data deduplication scheme based on data popularity is proposed. Check tags are calculated via bilinear mapping to determine whether different encrypted data originate from the same plaintext. Cipher text policy attribute- based encryption is applied to protect the tags. A secure key delivery scheme is designed to pass the data encryption key from an initial data uploader to subsequent uploaders via the Cloud server in an offline manner. The cloud server can perform deduplication without the assistance of any online third party. Security analysis and simulation experiments are provided, proving the practicability and efficiency of the proposed scheme.
Kewords
Cloud, Cloud Computing
Reference
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