Cryptanalysis and improvement of robust authentication scheme for telecare medicine information systems
Dongwoo Kang, Donghoon Lee, Seokhyang Cho, Jaewook Jung, Dongho Won · 2017
Telecare Medicine Information System holds up health-care delivery service between patients and doctor. Send the user or TMIS server's information through the public channel. To protect patients' personal information such has telephone number, home address, health information is significant in communication protocol. Therefore, User authentication schemes for telecare medicine information systems (TMIS) have been proposed continuously. Recently, Kukki et al. proposed an improved authentication scheme for TMIS. Nevertheless, in this paper, we will demonstrate Kukki's scheme is still open to attack offline password guessing attack, user impersonation attack. To improve protection of security threat, we suggest new authentication scheme for TMIS which has more efficient and safety. The analysis demonstrations our proposed scheme is able to resist the weakness in Kukki et al.'s scheme and has better accomplishment.