Abstract: In recent days, data sharing using distributed systems is mainly carried out in 2 ways such as social networks and cloud computing. so, necessity of security is highly essential. Challenging issues are accessing and updating the policies of data sharing. In that one such policies is cipher text Policy Attribute Based Encryption (CP_ABE).for example primary health care center scenario for a patient attribute. The major drawback is key escrow problem. Advantage is to data owner can access easily with the patient details. In key generation center decryption carried out by private keys. In data sharing scenarios, attribute based methods are not highly suitable, since we can share only to the designated users. ciphertext policy introduces another challenge is a revocation to the user. The proposed scheme features he following achievements: 1).the key esrow problem could be solved by escrow free key issuing protocol, which is constructed using the secure two_party computation between the key generation center and the data storing center, and 2)fine grained user revocation per each attribute could be done by proxy encryption which takes advantage of the selective attribute group key distribution on top of the ABE. The performance and security analyses indicate the proposed scheme is efficient to securely manage the data distribute in the data sharing system.
Keywords: Attributed based Encryption, Cipher Text Policy, Data Sharing, and revocation.
Title: Enlightening Security and Proficiency in Distributed Data Accessing For Cloud Computing
Author: Mrs. P. SIVAGAMI, Ms. A. SANDHIYA
International Journal of Computer Science and Information Technology Research
ISSN 2348-1196 (print), ISSN 2348-120X (online)
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