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An improved anonymous authentication scheme for roaming in ubiquitous networks.

Hakjun Lee1, Donghoon Lee1, Jongho Moon1

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This study reveals security flaws in a 2017 password-based authentication scheme for ubiquitous networks. A new biometric-based three-factor authentication method is proposed to enhance user privacy and security.

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Area of Science:

  • Computer Science
  • Cybersecurity
  • Network Security

Background:

  • Ubiquitous networking offers anytime, anywhere access to data and computing resources.
  • Increased mobile device usage raises significant security and privacy concerns in networked environments.
  • Existing authentication schemes must balance security with low computational cost for ubiquitous networks.

Purpose of the Study:

  • To identify and address security vulnerabilities in Chaudhry et al.'s 2017 password-based authentication scheme.
  • To propose a novel, secure, and efficient authentication scheme for ubiquitous networks.
  • To enhance user privacy and data protection in mobile and ubiquitous computing environments.

Main Methods:

  • Analysis of Chaudhry et al.'s scheme to identify vulnerabilities to stolen-mobile device and user impersonation attacks.
  • Development of a three-factor authentication scheme incorporating bio-hash for enhanced security.
  • Security proof using the random oracle model and formal verification with ProVerif.
  • Evaluation of computational and communication costs.

Main Results:

  • Chaudhry et al.'s scheme is vulnerable to stolen-mobile device and user impersonation attacks.
  • The proposed biometric-based three-factor authentication scheme effectively addresses identified security flaws.
  • The new scheme demonstrates suitability for resource-constrained ubiquitous environments with low computational overhead.

Conclusions:

  • Password-based authentication schemes can be vulnerable in ubiquitous networks.
  • Biometric-based three-factor authentication offers a robust solution for enhancing security and privacy.
  • The proposed scheme provides a secure and efficient alternative for authentication in ubiquitous environments.