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Security of medical multimedia.
S Tzelepi1, G Pangalos, G Nikolacopoulou
1Informatics Laboratory, Computers Division, General Department, Faculty of Technology, Aristotelian University, Thessaloniki 54006, Greece. tzelepi@eng.auth.gr
Medical Informatics and the Internet in Medicine
|January 1, 2003
Summary
This study enhances medical data security by introducing an extended role-based access control model. It uses constraints for fine-grained, flexible policies, improving privacy for multimedia health information.
Area of Science:
- Health Informatics
- Information Security
- Computer Science
Background:
- Increasing use of information technology in healthcare raises concerns about medical data privacy and security.
- Multimedia data in healthcare demands higher security standards for data and communication.
Purpose of the Study:
- To define and implement an authorization model for regulating access to multimedia medical data.
- To extend existing role-based access control (RBAC) models with constraint-based policies.
Main Methods:
- Describing essential security requirements for multimedia medical data.
- Implementing security measures using cryptography, watermarking, and security infrastructures.
- Developing an extended RBAC model incorporating role-permission relationship constraints.
Main Results:
- The proposed model enables fine-grained, flexible access control policies (content-, context-, time-based).
- The model effectively captures restrictions like role entry restrictions.
- A secure database management system (DBMS) architecture is presented.
Conclusions:
- The extended RBAC model enhances the security and privacy of multimedia medical data.
- Constraint-based access control offers tailored and robust security solutions for healthcare information systems.