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Secure deduplication is a technique to remove duplicate copies of storage data, and provides security to them. To reduce storage space and upload bandwidth in cloud storage deduplication has been a excellent technique. For that purpose convergent encryption has been extensively adopt for secure deduplication, condemn issue of making convergent encryption practical is to efficiently and reliably manage a huge number of convergent keys. The fundamental idea in this, is that eliminate duplicate copies of storage data  and  limit the damage of stolen data if decrease the value of that thieved information to the attacker. Here it makes the first attempt to formally address the problem of achieving efficient and reliable key management in secure deduplication. Here, it first introduce a baseline approach in which each user holds an independent master key for encrypting the convergent keys and outsourcing them. Such a baseline key handling scheme generates an enormous number of keys with the expand number of users and requires users to dedicatedly protect the master keys. To this end, here offeredDekey, User Behaviour Profiling and Decoys technology. New construction ,Dekeyin which users do not need to manage any keys on their own but instead securely distribute the convergent key shares across multiple servers for insider attacker. As a feasibility studies, implementation ofDekey by using the Ramp secret sharing scheme and demonstrate that Dekey incurs limited overhead in realistic environments. Two technology,User profiling and decoys, then, serve the purposes: First one is validating whether data access is authorized when abnormal information access is detected, and second one is that confusing the attacker with bogus information. The combination of these security features will provide unprecedented excellent levels of security for the deduplication in insider and outsider attacker.


Deduplication, Convergent encryption key management, Dekey, User behaviour profiling, Decoy Technology

Article Details

How to Cite
Kalyani R. Gawande and Dr.Roshan. R. Bhure, “SECURE DEDUPLICATION WITH CONVERGENT ENCRYPTION KEY MANAGEMENT”, IEJRD - International Multidisciplinary Journal, vol. 5, no. 5, p. 6, Jul. 2020.


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