Privacy and security control architecture for ubiquitous RFID healthcare system in wireless sensor networks

In this paper, we have designed and modeled the ubiquitous RFID healthcare system architecture and framework workflow, which are described by six classified core players or subsystems. They are consisting of the patient and wearable ECG sensor, network service, healthcare service, emergency service, and PKI service providers, whose individual private and public keys should be stored on their smart card and be used to enhance security level control for the patient's medical privacy. All of the patient and providers in the proposed security control architecture need suitable secure private and public keys in order to access to ECG medical raw data and diagnosis results with RFID/GPS tracking information for emergency service. By enforcing the requirements of necessary keys among the patient and providers, the patient's ECG data can be successfully protected and be effectively controlled over the open medical directory service. Consequently, the proposed architecture for ubiquitous RFID healthcare system is appropriate to build up medical privacy policies in ubiquitous sensor networking environments.