Application of Block Design for an Efficient Conference Key Distribution System


KIPS Transactions on Computer and Communication Systems, Vol. 8, No. 3, pp. 271-276, Jun. 2001
10.3745/KIPSTC.2001.8.3.271,   PDF Download:

Abstract

A conference key distribution system is a scheme to generate a conference key, and then to distribute this key to only paticipants attending at the conference in order to communicate with each other securely. In this paper, an efficient conference key distribution system is presented by employing a symmetric balanced incomplete block design (SBIBD), one class of block designs. Through techniques for creating a conference key and for performing authentication based on identification information, the communication protocol is designed. The protocol presented minimizes the message complexity for generating a conference key. In a special class of SBIBD the message complexity is O, where v is the number of participants. The security of the protocol, which is a significant factor in the construction of secure system, can be proved as computationally difficult to calculate as factoring and discrete logarithms.


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Cite this article
[IEEE Style]
T. H. Lee and I. Y. Chung, "Application of Block Design for an Efficient Conference Key Distribution System," KIPS Journal C (2001 ~ 2012) , vol. 8, no. 3, pp. 271-276, 2001. DOI: 10.3745/KIPSTC.2001.8.3.271.

[ACM Style]
Tae Hoon Lee and Il Yong Chung. 2001. Application of Block Design for an Efficient Conference Key Distribution System. KIPS Journal C (2001 ~ 2012) , 8, 3, (2001), 271-276. DOI: 10.3745/KIPSTC.2001.8.3.271.