Recently, the telecare medical information system, which enables various healthcare delivery services, has been paid more and more attention in countries with aging populations. Using the telecare medical information system, it is possible to bring the advantages of telemedical directly into the patients home. At the same time, it faces some common security threats, thus, only authorized users should be granted the access to this system for the privacy concern. There are many authentication schemes studying protection of user medical information. Unfortunately, these schemes are still vulnerable to some common cyber attacks or has inefficient computational and communication cost. To remedy the weaknesses of these schemes, we propose an enhanced scheme based on elliptic curve cryptography to ensure necessary security and reduce computation load in this paper. By security analysis, we also demonstrate that our scheme is secure and efficient. Therefore, our scheme is suitable for telecare medical information system.
Anonymity Preserving and Lightweight Multimedical Server Authentication Protocol for Telecare Medical Information System
