Managing Medical and Insurance Information Through a Smart-Card-Based Information System
Journal of Medical Systems
Password authentication with insecure communication
Communications of the ACM
Handbook of Applied Cryptography
Handbook of Applied Cryptography
An efficient biometrics-based remote user authentication scheme using smart cards
Journal of Network and Computer Applications
A More Secure Authentication Scheme for Telecare Medicine Information Systems
Journal of Medical Systems
A Secure Authentication Scheme for Telecare Medicine Information Systems
Journal of Medical Systems
An Efficient Authentication Scheme for Telecare Medicine Information Systems
Journal of Medical Systems
An Improved Authentication Scheme for Telecare Medicine Information Systems
Journal of Medical Systems
Security and Communication Networks
A Privacy Enhanced Authentication Scheme for Telecare Medical Information Systems
Journal of Medical Systems
An Authentication Scheme for Secure Access to Healthcare Services
Journal of Medical Systems
Journal of Medical Systems
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The telecare medicine information system (TMIS) allows patients and doctors to access medical services or medical information at remote sites. Therefore, it could bring us very big convenient. To safeguard patients' privacy, authentication schemes for the TMIS attracted wide attention. Recently, Tan proposed an efficient biometrics-based authentication scheme for the TMIS and claimed their scheme could withstand various attacks. However, in this paper, we point out that Tan's scheme is vulnerable to the Denial-of-Service attack. To enhance security, we also propose an improved scheme based on Tan's work. Security and performance analysis shows our scheme not only could overcome weakness in Tan's scheme but also has better performance.