Efficient Client-Side Deduplication of Encrypted Data in Cloud Storage

Abstract

Attribute-based secret writing (ABE) has been wide employed in cloud computing wherever knowledge|a
knowledge|an information} supplier outsources his/her encrypted data to a cloud service supplier, and may share the info
with users possessing specific credentials (or attributes). However, the quality ABE system doesn't support secure de
duplication, that is crucial for eliminating duplicate copies of identical information so as to save lots of space for storing
and network information measure. during this paper, we have a tendency to gift associate attribute-based storage system
with secure deduplication during a hybrid cloud setting, wherever a personal cloud is liable for duplicate detection and a
public cloud manages the storage. Compared with the previous information deduplication systems, our system has 2
blessings. Firstly, it are often wont to confidentially share information with users by specifying access policies instead of
sharing secret writing keys. Secondly, it come throughs the quality notion of linguistics security for information
confidentiality whereas existing systems solely achieve it by shaping a weaker security notion. additionally, we have a
tendency to place forth a technique to switch a ciphertext over one access policy into ciphertexts of identical plaintext
however beneath different access policies while not revealing the underlying plaintext.