Mona: Secure Multi-Owner Data Sharing for Dynamic Groups in the Cloud

With the personality of low preservation, cloud computing provides a cost-effective and effective solution for sharing workforce useful resource amongst cloud users. Unfortunately, sharing data in a multi-owner method at the same time retaining information and identity privateness from a un relied on cloud is still a difficult problem, due to the well-known trade of the membership. In this paper, we endorse a cozy multi owner knowledge sharing scheme, named Mona, for dynamic organizations within the cloud. By using leveraging staff signature and dynamic broadcast encryption approaches, any cloud person can anonymously share data with others. In the meantime, the storage overhead and encryption computation fee of our scheme are impartial with the quantity of revoked customers. Additionally, we analyze the security of our scheme with rigorous proofs, and show the effectivity of our scheme in experiments.