XML security protection scheme based on Kerberos authentication and polynomials authorization.

Area of Science:

• Computer Science
• Information Security
• Data Management

Background:

• XML is a prevalent standard for data exchange online.
• Ensuring data security and privacy for XML in cloud storage is a growing concern.
• Secure access to sensitive XML information requires robust authorization mechanisms.

Purpose of the Study:

• To propose a polynomial authorization scheme integrated with Kerberos authentication for secure XML data sharing in cloud environments.
• To enhance the security and privacy of sensitive XML data based on user access purpose and privacy policies.
• To improve the efficiency of secure data access and reduce server storage pressure.

Main Methods:

• Utilizing Kerberos authentication for user identification.
• Employing a polynomial authorization scheme based on leaf node addresses for user authorization.
• Dynamically generating authorization matrices using authorization polynomials and a global structure view.
• Leveraging authorization matrices and auxiliary information tables for secure queries.

Main Results:

• The proposed scheme effectively protects sensitive XML data.
• It reduces server storage pressure.
• The dynamic nature of authorization matrices enhances system security.
• Successful completion of security queries was demonstrated.

Conclusions:

• The polynomial authorization scheme with Kerberos authentication provides a secure and efficient solution for sharing sensitive XML data in the cloud.
• The dynamic authorization approach significantly improves data security and privacy.
• The scheme offers benefits in terms of reduced storage and faster information retrieval.