• Shraddha P.Shete
• Prof. M. B. Vaidya

Data protection and giving aceess control to the data is growing issue now a days .Cipher Text Policy Attribute-Based Encryption has adopted as a favourable technique as it gives pliability, close-grained and safe data access control for cloud storage with fair-but-puzzled cloud servers. In the existing systems that CP-ABE, the attribute authority executes the secret key execution by user lawfulness confirmation and it takes time. In ciphertext-policy attribute based encryption a end user’s private-key is associated with a set of attributes and a ciphertext specifies an access policy over a defined universe of attributes within the system which is promising technique and secured over traditional techniques . The proposed system guarantees security requirements and makes performance improvement in key generation.

Cipher Text Policy Attribute-Based Encryption (CP-ABE), Honest-but-curious cloud servers, Security.

"Confident and Collusion Resistant Robust Public Cloud Storage Access with Attribute Authorities", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.544-550, June-2019, Available :http://www.jetir.org/papers/JETIR1906B88.pdf

"Confident and Collusion Resistant Robust Public Cloud Storage Access with Attribute Authorities", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp544-550, June-2019, Available at : http://www.jetir.org/papers/JETIR1906B88.pdf