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Weakness in simple authenticated key agreement protocol

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1 Author(s)
Yuh-Min Tseng ; Dept. of Inf. Manage., Nan-Kai Coll. of Technol. & Commerce, Nantou, Taiwan

Seo and Sweeney recently proposed a simple authenticated key agreement protocol using a password-based method [see ibid., vol. 35, no. 13, p. 1073, 1999]. They claimed that the established session key between two users is also verified. However, the author points out that verification of the session key cannot be achieved in their protocol. A slight improvement to their protocol is proposed to overcome this weakness

Published in:

Electronics Letters  (Volume:36 ,  Issue: 1 )