An efficient and robust RSA-based remote user authentication for telecare medical information systems

Area of Science:

• Computer Science
• Medical Informatics
• Cybersecurity

Background:

• Telecare Medical Information Systems (TMIS) enable remote patient-doctor communication via the internet.
• Secure authentication is crucial in TMIS to protect sensitive patient and server information.
• Existing authentication schemes may have vulnerabilities.

Purpose of the Study:

• To analyze the security of Khan and Kumari's 2013 authentication scheme for TMIS.
• To propose a novel, more secure, and efficient authentication scheme for TMIS.

Main Methods:

• Cryptographic analysis of Khan and Kumari's authentication scheme.
• Development and security evaluation of a new authentication protocol for TMIS.
• Performance comparison with existing schemes.

Main Results:

• Khan and Kumari's scheme is vulnerable to off-line password guessing attacks.
• The scheme offers no protection if a patient's password is compromised.
• The proposed new scheme demonstrates enhanced security and efficiency.

Conclusions:

• Khan and Kumari's authentication scheme for TMIS is insecure.
• The newly proposed authentication scheme provides robust security against various attacks.
• The new scheme offers improved performance for TMIS.