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Intensive Convergence Encryption for Secure Deduplication in Cloud
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 140 - Number 3 |
| Year of Publication: 2016 |
| Authors: Priyanka J., Divya A. |
10.5120/ijca2016909260
|
Priyanka J., Divya A. . Intensive Convergence Encryption for Secure Deduplication in Cloud. International Journal of Computer Applications. 140, 3 ( April 2016), 28-32. DOI=10.5120/ijca2016909260
Abstract
Deduplication is used for eliminating the duplicate copy of same data and providing security to them. Replica of same data is obtained by encrypting the same information with different key. Surplus amount of data is being stored in the cloud environment to shrink the data in storage space convergence encryption technique is used. In convergence encryption technique the key will be generated from the file by the hash value so that same file will turn out same cipher text. When the cipher text is indistinguishable it will be identified as a duplicate. The main weak spot of the convergence encryption comes from the fact that key for a given data part can be generated by anyone in a deterministic way. This allows an attacker to easily recuperate the plain text from the key so it critically compromises user’s confidentiality. In this paper encrypted text by convergence encryption is made complicated by the bit reversal and RC4 algorithm. so that the data will be more secure in the cloud storage and prevented from the attacker. Deduplication manager will be used for the purpose of detecting the duplicate file and manage the keys. By this even though the Attacker knows the cipher text he cannot obtain the original text from encrypted data it will make the encryption more efficient and make the data secure.
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