1 research outputs found
Cryptanalysis of Cryptanalysis and Improvement of Yan et al Biometric-Based Authentication Scheme for TMIS
Remote user authentication is critical requirement in Telecare Medicine
Information System (TMIS) to protect the patient personal details, security and
integrity of the critical medical records of the patient as the patient data is
transmitted over insecure public communication channel called Internet. In
2013, Yan proposed a biometric based remote user authentication scheme and
claimed that his scheme is secure. Recently, Dheerendra et al. demonstrated
some drawbacks in Yan et al scheme and proposed an improved scheme to erase the
drawbacks of Yan et al scheme. We analyze Dheerendra et al scheme and identify
that their scheme is vulnerable to off-line identity guessing attack, and on
successfully mounting it, the attacker can perfom all major cryptographic
attacks.Comment: arXiv admin note: text overlap with arXiv:1309.4944 by other author