Research note: On the security of Wu and Yeh's conference key distribution system

Authors:
Tzonelih Hwang;Narn-Yih Lee;Chih-Hung Wang;Ming-Yung Ko
Affiliations:
Institute of Information Engineering, National Cheng-Kung University, Tainan, Taiwan, ROC;Institute of Information Engineering, National Cheng-Kung University, Tainan, Taiwan, ROC;Institute of Information Engineering, National Cheng-Kung University, Tainan, Taiwan, ROC;Institute of Information Engineering, National Cheng-Kung University, Tainan, Taiwan, ROC
Venue:
Computer Communications
Year:
1995

Citing 2
Cited 1

A conference key distribution system

IEEE Transactions on Information Theory
Key distribution system based on identification information

IEEE Journal on Selected Areas in Communications

Research note: A conference key distribution scheme based on the theory of quadratic residues

Computer Communications

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Abstract

In 1993, Wu and Yeh proposed a conference key distribution system based on cross-product operation on row vectors over the Galois Field GF(P). In this research note, we show that an opponent who knows the ID of a member in the conference can compute the conference key without knowing any secret from the system. Furthermore, we suggest a modified scheme to avoid this attack.