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An Improved Key-Management Scheme for Hierarchical Access Control

摘要


Now, most institutions share the data through the Internet. With the rapid development of the Internet and the cloud storage, data-sharing becomes so easy that the data was stolen or destroyed easier than before. Therefore, accessing data should strictly control to avoid unauthorized access. In this paper, we propose the more efficient key management scheme for hierarchical access control than Odelu et al.'s scheme.

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