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

Xuefeng Liu, Yuqing Zhang, Boyang Wang, Jingbo Yan
2013 IEEE Transactions on Parallel and Distributed Systems  
With the character of low maintenance, cloud computing provides an economical and efficient solution for sharing group resource among cloud users. Unfortunately, sharing data in a multi-owner manner while preserving data and identity privacy from an untrusted cloud is still a challenging issue, due to the frequent change of the membership. In this paper, we propose a secure multiowner data sharing scheme, named Mona, for dynamic groups in the cloud. By leveraging group signature and dynamic
more » ... dcast encryption techniques, any cloud user can anonymously share data with others. Meanwhile, the storage overhead and encryption computation cost of our scheme are independent with the number of revoked users. In addition, we analyze the security of our scheme with rigorous proofs, and demonstrate the efficiency of our scheme in experiments.
doi:10.1109/tpds.2012.331 fatcat:nrff3mpyo5hptjqywn5tdccwgm