An Efficient Provably Secure Verifier-Based Three-Factor Authentication Technique Using PDL for Data Exchange in TMIS

In healthcare services, telecare medicine information systems (TMIS) is the viable solution offered currently. Moreover, to provide best security to the TMIS, it attracted the various researchers to investigate the security challenges in TMIS. Subsequently, the security of TMIS is improving but the application becoming widespread hence needs robust security technique. An efficient verifier-based 3-party authentication technique in telecare medicine information systems for data exchange, which permits only two users/patients to store their verifier in the database of an authentication server, computed using own password. The authentication system will then validate the user’s verifier and help them safely and easily share electronic medical records. In this work, we present an efficient provably secure verifier-based 3-party authentication technique using partial discrete logarithm (PDL) for exchanging data in TMIS. The presented technique not utilizing any public keys of the server, and does not require additional messages and number for key confirmation rounds. The proposed technique has higher security compared to the related verifier-based methods, has lower computational costs and fewer communications, and is therefore ideal for TMIS.