Comprehensive Vulnerability Analysis of Lightweight Authentication Protocols in IoT Healthcare Environments
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This paper analyzes a lightweight authentication protocol tailored for Internet of Medical Things (IoMT) environments. Through formal analysis, we identify key vulnerabilities including the absence of perfect forward secrecy, susceptibility to replay attacks, offline credential guessing, and man-in-the-middle threats. To address these issues, we propose practical improvements such as ephemeral key exchange, secure nonce generation, password hardening, and authenticated key verification. These enhancements significantly strengthen the protocol’s security while maintaining efficiency, making it more suitable for resource-constrained medical devices and contributing to the advancement of secure IoMT authentication systems.
Abstract
This paper analyzes a lightweight authentication protocol tailored for Internet of Medical Things (IoMT) environments. Through formal analysis, we identify key vulnerabilities including the absence of perfect forward secrecy, susceptibility to replay attacks, offline credential guessing, and man-in-the-middle threats. To address these issues, we propose practical improvements such as ephemeral key exchange, secure nonce generation, password hardening, and authenticated key verification. These enhancements significantly strengthen the protocol’s security while maintaining efficiency, making it more suitable for resource-constrained medical devices and contributing to the advancement of secure IoMT authentication systems.