A robust and effective smart-card-based remote user authentication mechanism using hash function.

Area of Science:

• Computer Science
• Cybersecurity
• Information Security

Background:

• Remote user authentication is critical for verifying user identity and ensuring secure access to systems.
• Existing password, biometric, and smart card-based schemes often suffer from high computational costs or security vulnerabilities.
• There is a need for efficient and robust remote user authentication solutions.

Purpose of the Study:

• To propose a novel, efficient, and robust password-based remote user authentication scheme utilizing smart cards.
• To enhance security and reduce computational overhead compared to existing methods.
• To ensure secure mutual authentication between remote users and servers.

Main Methods:

• The proposed scheme employs efficient one-way hash functions and bitwise XOR operations for authentication.
• Rigorous informal and formal security analyses were conducted to evaluate the scheme's robustness.
• Automated Validation of Internet Security Protocols and Applications (AVISPA) tool was used for formal security simulation.
• The scheme facilitates local password changes without server interaction.

Main Results:

• The proposed scheme demonstrates high efficiency due to the use of simple cryptographic operations.
• Security analysis confirms the scheme's resilience against various known passive and active attacks.
• Formal verification using AVISPA validates the scheme's security against sophisticated threats.
• The scheme supports secure and efficient local password management.

Conclusions:

• The developed password-based smart card remote user authentication scheme is efficient and highly secure.
• It offers significant improvements over existing schemes in terms of security, performance, and features.
• The scheme provides a reliable solution for secure remote user authentication in modern systems.