SECURE MULTI-OWNER INFORMATION SHARING FOR DYNAMICGROUPSIN THE CLOUD

Abstract

Now a day's cloud computing plays a key role for sharing group resource among their users. Due tothefrequent changes of membership maintaining multi owner data is becoming a difficult task and also sharingof data in an un trusted cloud is also a major challenge. we propose a secure multi owner data sharing scheme, named Mona, for dynamic groups in the cloud. By leveraging group signature and dynamic broadcast encryption techniques, any cloud user can anonymously share data with others. Meanwhile, the storageoverhead and encryption computation cost of our scheme are independent with the number of revoked users. Inaddition, we analyze the security of our scheme with rigorous proofs, and demonstrate the efficiency of our scheme in experiments.