Title :
Cryptanalysis of flexible remote password authentication scheme of ICN´01
Author :
Kim, Seungjoo ; Lim, Seongan ; Won, Dongho
Author_Institution :
Korea Inf. Security Agency, Seoul, South Korea
fDate :
11/21/2002 12:00:00 AM
Abstract :
The weakness of Woei-Jiunn Tsaur´s (see ICN 2001, p.174-83, 2001) flexible user authentication scheme for multi-server Internet services is demonstrated. We show that Tsaur´s authentication scheme is vulnerable to the off-line guessing attack, i.e. we show that the user´s additional two secret keys do not strengthen the security of Tsaur´s scheme.
Keywords :
Internet; cryptography; message authentication; telecommunication security; ICN´01; cryptanalysis; flexible remote password authentication; multi-server Internet services; off-line guessing attack; password verification; secret keys; security;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020974
