• Fulsoundar Priyanka
• Mr. Rathod V .U

Cloud computing provides Cloud storage as a service to the users for hosting their data in the cloud. Data access control is the well-organized method to provide data security in cloud. The proposed revocable multi-authority CP-ABE scheme provides solution to the attribute revocation problem. The proposed scheme updates the components of the revoked attribute only and generates latest secret keys for the revoked attribute and forwards it to the non-revoked users who have the attributes as revoked attributes. The backward security and Forward security is assured. If the revoked user enters into the system again by doing the registration process means, the particular user is identified via the identity card detail in the revocation list and will not be added to the system, so that they are stopped at the registration phase itself.

Data encryption, Attribute-based Encryption, data security ,cloud computing

"Multi-Authority Cipher Text Policy Attribute Base Encryption On Cloud Storage", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.364-368, May-2019, Available :http://www.jetir.org/papers/JETIR1905F54.pdf

"Multi-Authority Cipher Text Policy Attribute Base Encryption On Cloud Storage", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp364-368, May-2019, Available at : http://www.jetir.org/papers/JETIR1905F54.pdf