Title :
An improvement of cryptographic key assignment scheme in a user hierarchy
Author :
Chen, Tzer Shyong ; Huang, Gwo-Shiuan ; Tasi, Ching-Chu ; Chang, Nien Tzu
Author_Institution :
Dept. of Inf. Manage., Tunghai Univ., Taichung, Taiwan
Abstract :
This paper presents an improvement in a cryptographic key assignment scheme proposed by Kuo et al. Considering the problem of dynamic access control in a user hierarchy, such an improvement focuses on the ability to implement easily. Moreover, this improvement is an attempt to greatly reduce the computation time and the storage size required by the key generation and the key derivation phases in Kuo´s scheme.
Keywords :
authorisation; cryptography; computation time; cryptographic key assignment scheme; dynamic access control; key derivation phases; key generation phases; storage size; user hierarchy; Access control; Communication system security; Computer science; Educational institutions; Engineering management; Information management; Information security; Public key; Public key cryptography; Technology management;
Conference_Titel :
TENCON '02. Proceedings. 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering
Print_ISBN :
0-7803-7490-8
DOI :
10.1109/TENCON.2002.1181233
