Page
%P
![Loading...](https://link.springer.com/static/c4a417b97a76cc2980e3c25e2271af3129e08bbe/images/pdf-preview/spacer.gif)
-
Article
Extended chaotic map-based key management for hierarchical access control in e-medicine systems
Hierarchical access control key management is a technique that involves grou** users into several categories such that each group has a distinct level of authority, thereby reducing the inconvenience that us...