A privacy protection model in ID management using access control

Abstract

The problem of privacy of the Identity Management System (IMS) is the most pressing concern of ordinary users. Uncertainty about privacy keeps many users away from utilizing IMS. Most privacy-enhancing technologies such P3P, E-P3P and EPAL use purposes or policies to ensure privacy that is set by users. Access control is arguably the most fundamental and pervasive security mechanism in use. This paper proposes a privacy protection model using access control for IMS. The proposed model protects privacy using access control techniques with privacy policies in a single circle of trust. We address characteristics of components for the proposed model and describe access control procedures. After that, we show protection architecture and XML-based schema for privacy policies. © Springer-Verlag Berlin Heidelberg 2005.