Paper 2016/698
A Note on One Secure Anti-Collusion Data Sharing Scheme for Dynamic Groups in the Cloud
Zhengjun Cao and Lihua Liu
Abstract
We remark that the scheme [IEEE TPDS, 27(1), 2016, 40-50] is flawed because the group manager cannot complete his computational task in the registration phase. Actually, they have misunderstood the concept of public key which is usually associated with an asymmetric encryption algorithm. Besides, the mechanism that the group manager has to re-encrypt all data stored in the cloud after a member is revoked, is somewhat infeasible because of its inefficiency.
Note: 3 pages
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Preprint. MINOR revision.
- Keywords
- Cloud computingkey distributiondata sharing
- Contact author(s)
- liulh @ shmtu edu cn
- History
- 2016-07-13: received
- Short URL
- https://ia.cr/2016/698
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2016/698,
author = {Zhengjun Cao and Lihua Liu},
title = {A Note on One Secure Anti-Collusion Data Sharing Scheme for Dynamic Groups in the Cloud},
howpublished = {Cryptology {ePrint} Archive, Paper 2016/698},
year = {2016},
url = {https://eprint.iacr.org/2016/698}
}
