Trusted Multi-Owner Data Sharing Among Dynamic Users in Public Cloud
L. SaiRamesh, S. Sabena, K. Thangaramya, Kulothungan Kanagasabai · SSRN Electronic Journal · 2016
Cloud computing provides a platform for sharing resources among group of users in an efficient and economical way. But sharing data in a multi-owner manner requires preserving data and identity privacy from an untrusted cloud is a challenging issue due to the frequent change of the membership. In this paper, we propose a trusted multi-owner data sharing scheme for dynamic groups in the cloud. By creating random signature and broadcasting encryption techniques dynamically, any cloud user in public cloud can share data with other users. Meanwhile, the storage overhead and encryption computation cost of proposed system are independent with the number of users. In addition, we include the hash function in signature to enhance the security of proposed method.