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http://dx.doi.org/10.13089/JKIISC.2013.23.1.003

An Improved One Round Authenticated Group Key Agreement  

Kim, Ho-Hee (Kyungpook National University)
Kim, Soon-Ja (Kyungpook National University)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.23, no.1, 2013 , pp. 3-10 More about this Journal
Abstract
Several identity-based and authenticated key agreement protocols have been proposed. It remains at issue to design secure identity based and authenticated key agreement protocols. In this paper, we propose a one round authenticated group key agreement protocol which uses one more key pair as well as the public key and private key of typical IBE(Identity-Based Encryption) system. The proposed protocol modified Shi et al.'s protocol and He et al.'s protocol. The public and private keys and the signature process of our protocol are simpler than them of their protocols. Our protocol is secure and more efficient than their protocols in communication and computation costs.
Keywords
Bilinear pairings; AGKA;
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