An effective security protocol for GDS (group Data sharing) in Healthcare Cloud Environment

The data-sharing in cloud computing will enable many users to share the data. This helps in accessing the information easily and to share the data efficiently. The healthcare data will have to be shared amongst different healthcare centers and the medical practitioners. This involves security issues while sharing the healthcare data within a group. We provide the group model for sharing of data that is based on block based design where the group members will perform the key agreement to get the common group key that helps to shares the data securely. The fault tolerant property is provided by this design which can detect the malicious attackers during the group data sharing. The proposed group data-sharing is compared with the existing data sharing models w.r.t. the time cost of computation for group key generation and sharing of data.