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Access control based on attribute certificates for medical intranet applications.

I Mavridis1, C Georgiadis, G Pangalos

  • 1Informatics Laboratory, Faculty of Technology, Aristotle University of Thessaloniki, Thessaloniki, 54006, Greece. imav@eng.auth.gr

Journal of Medical Internet Research
|November 27, 2001
PubMed
Summary

Digital certificates and the DIMEDAC security policy enhance access control for clinical intranet applications. This system securely manages sensitive health information by using identity, attribute, and access-rule certificates for authentication and authorization.

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Area of Science:

  • Health Informatics
  • Computer Security
  • Information Systems

Background:

  • Clinical information systems often prioritize data sharing over security.
  • Sensitive health information requires robust access control mechanisms.
  • Digital certificates offer a solution for securing clinical intranet applications.

Purpose of the Study:

  • To highlight the necessity of access control in distributed clinical databases.
  • To explain the application of digital certificates and security policies.
  • To propose an architecture for secure access to clinical intranet applications using digital certificates, cryptography, and security policies.

Main Methods:

  • Development of the DIMEDAC (Distributed Medical Database Access Control) security policy, compatible with public key infrastructure.

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  • Implementation approach utilizing digital certificates in conjunction with the DIMEDAC policy.
  • System architecture designed for phased user credential acquisition and data access.

    • Main Results:

    • A two-phase access control system: credential acquisition and data access.
    • Utilized three types of digital certificates: identity (authentication), attribute (authorization), and access-rule (policy propagation).
    • Access decisions are based on authenticated identity and attribute certificates within the access-rule policy framework.

    Conclusions:

    • Digital certificates and the DIMEDAC security policy provide effective and secure access control for clinical intranet applications.
    • The proposed system architecture ensures secure management of sensitive health data.