In this paper, a blockchain-aware rollbackable data access control scheme (Bdacs) is proposed to reconcile the above tension. Bdacs uses two novel encryption schemes named hierarchical encryption ...

Help us understand the challenges patients face opting out of voluntary uses of their data, or getting access to their ...

Access control is fundamental and prerequisite to govern and safeguard information assets within an organisation. Organisations generally use web enabled remote access coupled with applications access ...