Token-based authenticated key establishment protocols for three-party communication

Authors:
Eun-Jun Yoon;Kee-Young Yoo
Affiliations:
Faculty of Computer Information, Daegu Polytechnic College, Daegu, South Korea;Department of Computer Engineering, Kyungpook National University, Daegu, South Korea
Venue:
EUC'07 Proceedings of the 2007 conference on Emerging direction in embedded and ubiquitous computing
Year:
2007

Citing 11
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Abstract

This paper proposes new efficient and secure three-party token-based authenticated key establishment (3TAKE) protocols based on symmetric key cryptosystem to minimize the complexity of symmetric key encryption/decryption operation among all users and fit three-party communication. In 3TAKE, the number of exponentiations among three parties is same or reduced by about 34 - 60% and the number of symmetric key encryption/decryption operations among three parties is reduced by about 34 - 67% compared with the related protocols, respectively. Furthermore, the number of rounds is one round smaller than the related protocols and the asymmetric key encryption/decryption operations do not need to establish a session key and authenticate between two users and a server.