Three-Round Smart Card-Based Key Exchange Scheme

Jeong Ok KWON  Ik Rae JEONG  Dong Hoon LEE  

IEICE TRANSACTIONS on Communications   Vol.E90-B   No.11   pp.3255-3258
Publication Date: 2007/11/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.11.3255
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories for Communications
cryptography,  key exchange,  smart card,  

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Smart card-based key exchange in the three-party setting allows two users with smart cards to agree on a common session key with the help of the trusted server. In this letter, we propose an efficient three-party smart card-based key exchange scheme with explicit (or mutual) authentication which requires only three rounds. Our scheme is the most round-/communication-efficient smart card-based key exchange scheme among those found in the literature, while providing key independence, forward secrecy and security against denial-of-service (DoS) attacks.