Title :
An Optimal Algorithm for Assigning Cryptographic Keys to Control Access in a Hierarchy
Author :
Mackinnon, Stephen J. ; Taylor, Peter D. ; Meijer, Henk ; Akl, Selim G.
Author_Institution :
Thousand Island Secondary School, Brockville, Ont., Canada, and the Department of Mathematics and Statistics, Queen´´s University
Abstract :
A cryptographic scheme for controlling access to information within a group of users organized in a hierarchy was proposed in [1]. The scheme enables a user at some level to compute from his own cryptographic key the keys of the users below him in the organization.
Keywords :
Access control; canonical assignment; cooperative attack; cryptographic key; hierarchy; key generation algorithm; partially ordered set; Broadcasting; Collaboration; Communication system security; Councils; Cryptography; Data security; Information security; Mathematics; Optimal control; Statistics; Access control; canonical assignment; cooperative attack; cryptographic key; hierarchy; key generation algorithm; partially ordered set;
Journal_Title :
Computers, IEEE Transactions on
DOI :
10.1109/TC.1985.1676635
