Title :
An information theoretic model for distributed key distribution
Author :
Blundo, Carlo ; D´Arco, Paolo
Author_Institution :
Dipt. di Inf. ed Applicazioni, Salerno Univ., Italy
Abstract :
A distributed key distribution scheme is a protocol enabling a set of n servers of a network to jointly realize a key distribution center, a server which distributes cryptographic keys to users for secure group communications. We model distributed key distribution schemes within an information theoretic framework showing lower bounds on the size of the information sent and stored by the servers and on the number of random bits needed to set up such schemes. The bounds are tight as there exists a protocol which meets them
Keywords :
cryptography; information theory; protocols; cryptographic keys; distributed key distribution; encryption; information theoretic model; key distribution center; lower bounds; protocol; random bits; secure group communications; server; tight bounds; Artificial intelligence; Computer networks; Cryptographic protocols; Cryptography; Electronic mail; Entropy; Information security; Network servers; Random variables;
Conference_Titel :
Information Theory, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
0-7803-5857-0
DOI :
10.1109/ISIT.2000.866568
