16-09-2016, 10:05 AM
[attachment=71062]
Abstract
Data duplication is one of important data compression techniques for eliminating duplicate copies of repeating data, and has been widely used in cloud storage to reduce the amount of storage space and save bandwidth.
To better protect data security, this paper makes the first attempt to formally address the problem of authorized data deduplication.
We also present several new deduplication constructions supporting authorized duplicate check in a hybrid cloud architecture
Existing Systems
Data deduplication systems, the private cloud is involved as a proxy to allow data owner/users to securely perform duplicate check with differential privileges.
Such architecture is practical and has attracted much attention from researchers.
The data owners only outsource their data storage by utilizing public cloud while the data operation is managed in private cloud.
Disadvantages Of Existing System
Traditional encryption, while providing data confidentiality, is incompatible with data deduplication.
Identical data copies of different users will lead to different cipher texts, making deduplication impossible
Proposed System
In this paper, we enhance our system in security. Specifically, we present an advanced scheme to support stronger security by encrypting the file with differential privilege keys.
In this way, the users without corresponding privileges cannot perform the duplicate check. Furthermore, such unauthorized users cannot decrypt the cipher text even collude with the S-CSP.
Abstract
Data duplication is one of important data compression techniques for eliminating duplicate copies of repeating data, and has been widely used in cloud storage to reduce the amount of storage space and save bandwidth.
To better protect data security, this paper makes the first attempt to formally address the problem of authorized data deduplication.
We also present several new deduplication constructions supporting authorized duplicate check in a hybrid cloud architecture
Existing Systems
Data deduplication systems, the private cloud is involved as a proxy to allow data owner/users to securely perform duplicate check with differential privileges.
Such architecture is practical and has attracted much attention from researchers.
The data owners only outsource their data storage by utilizing public cloud while the data operation is managed in private cloud.
Disadvantages Of Existing System
Traditional encryption, while providing data confidentiality, is incompatible with data deduplication.
Identical data copies of different users will lead to different cipher texts, making deduplication impossible
Proposed System
In this paper, we enhance our system in security. Specifically, we present an advanced scheme to support stronger security by encrypting the file with differential privilege keys.
In this way, the users without corresponding privileges cannot perform the duplicate check. Furthermore, such unauthorized users cannot decrypt the cipher text even collude with the S-CSP.