A Secure Anti-Collusion Data Sharing Scheme for Dynamic Groups in the Cloud
|Name||A Secure Anti-Collusion Data Sharing Scheme for Dynamic Groups in the Cloud|
cloud computing main benefit is we can share data with the group member easily. For that security is needful.Unfortunately, because of the frequent change of the membership, sharing data while providing privacy-preserving is still a challenging issue, especially for an untrusted cloud due to the collusion attack. Moreover, for existing schemes, the security of key distribution is based on the secure communication channel, however, to have such channel is a strong assumption and is difficult for practice. In this paper, we propose a secure data sharing scheme for dynamic members. for that we provide secure way and the access control.we can protect the scheme from collusion attack, which means that revoked users cannot get the original data file even if they conspire with the untrusted cloud. In our approach, by leveraging polynomial function, we can achieve a secure user revocation scheme.
|ieee paper year||2016|