• Miss. Sayali Sanjay Deshmukh
• Prof. Shrinivas Sonkar

Cloud computing allows multiple participants to share their data and helps improve work efficiency. The key agreement protocol is important in group data sharing and ensures security and efficiency. A block design-based key agreement protocol is put forth using symmetric balanced incomplete block design that supports multiple participants and is helpful in flexibly increasing the participants in the cloud environment using the block design structure. The different types of key attacks can be avoided using the fault tolerance property of the protocol.

Key agreement protocol, Data sharing, Cloud storage

"A Survey on Data Sharing using Block Design-based Key Agreement in Cloud Computing", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.540-543, June-2019, Available :http://www.jetir.org/papers/JETIR1906B87.pdf

"A Survey on Data Sharing using Block Design-based Key Agreement in Cloud Computing", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp540-543, June-2019, Available at : http://www.jetir.org/papers/JETIR1906B87.pdf