TY  - JOUR
T1  - Weaknesses of Anonymous Mutual Authentication Schemes for
Roaming Service with Smart Cards
AU - Choi, Younsung 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 19
SP  - 7013
EP  - 7019
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.7013.7019
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.7013.7019
KW  - Roaming service
KW  -authentication scheme
KW  -mutual authentication scheme
KW  -guessing attack
KW  -anonymity
KW  -scheme
AB  - In wireless communications, various anonymous mutual authentication schemes use public key
cryptosystems to provide secure roaming service but are not computationally efficient. Guo et al., first,
proposed an efficient mutual authentication protocol providing user anonymity and using smart cards but this
scheme has security weaknesses. Liu et al. attempted to address this by proposing a mutual authentication
scheme in wireless communications with anonymity for roaming service with smart cards in wireless
communications but this scheme still has security vulnerabilities. The present study demonstrates security
problems of mutual authentication scheme: it is vulnerable to offline password (and identity) guessing attack
does not provide perfect forward secrecy is vulnerable to DoS attack and provides weak anonymity.
ER  -