Limitations of challenge-response entity authentication

17 August 1989

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 25 (17) , 1195-1196
https://doi.org/10.1049/el:19890801

Abstract

We consider two basic versions of the challenge-response authentication protocol, and exhibit both a method of attack and a simple modification preventing such attacks. We go on to consider three variants of the basic protocols and show that one of them is completely insecure.

Keywords

CHALLENGE-RESPONSE ENTITY AUTHENTICATION
AUTHENTICATION PROTOCOL
VARIANTS

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