Access control for healthcare data using extended XACML-SRBAC model

In the modern health service, data are accessed by doctors and nurses using mobile, Personal Digital Assistants, and other electronic handheld devices. An individual´s health related information is normally stored in a central health repository and it can be accessed only by authorized doctors. However, this Data is prone to be exposed to a number of mobile attacks while being accessed. This paper proposes a framework of using XACML and XML security to support secure, embedded and fine-grained access control policy to control the privacy and data access of health service data accessed through handheld devices. Also we consider one of the models, namely Spatial Role-based access control (SRBAC) and model it using XACML.