• P.Maneepa
• Dr. P. Venkateswara Rao
• Dr. V. Sucharita

: The Data access control is an effective way to ensure the data security in the cloud. Due to the data outsourcing and the un-trusted cloud servers, the data access control becomes a challenging issue in cloud storage systems. The Attribute based Encryption on multi owner data access was the method with low cost and good efficiency but it has some security problems. In this paper I design a secure data access control mechanism for multi – authority cloud storage, where a file can be uploaded to cloud environment and it can also be shared by the data owner, the people who are all sharing the file will be getting the secret key which is an encrypted one. I increase the security on the Multi – Authority system by two methods 1: Attribute based, 2: Encryption of attribute by secret key. Test results show our system is secure and efficient.

Cloud Storage, CP-ABE, Data Access Control, Multi Authority

"Data Security Using Multi-Authority Data Access Control for Cloud Storage System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.103-107, June 2019, Available :http://www.jetir.org/papers/JETIR1907I15.pdf

"Data Security Using Multi-Authority Data Access Control for Cloud Storage System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp103-107, June 2019, Available at : http://www.jetir.org/papers/JETIR1907I15.pdf