Secure Remote Monitoring and Cipher Data Sharing for IoT Healthcare System with Privacy Preservation

With the increase of Internet connected IoT devices, remote monitoring and data sharing have become a new trend of IoT healthcare systems. The top three concerns in an IoT system are scalability, secure communication and privacy preservation. SSL/TLS based direct connection to the IoT devices has critical scalability issue and non-encrypted data sharing has high privacy leaking risk. In this paper, we propose a secure remote monitoring and cipher data sharing for IoT healthcare system with the consideration of privacy preservation. In the proposed system, the data transmission between the IoT related devices uses the conventional communication protocols as usual such as Constrained Application Protocol (CoAP) and Message Queuing Telemetry Transport (MQTT) while the remote monitoring and data sharing use Domain Name System (DNS) protocol and Docker container technology. The SIG(0) authentication scheme of DNS protocol is used for the remote monitoring as well as data sharing and only cipher data is transferred via the Docker container in the Internet with clear authentication. A prototype system has been implemented in a local experimental network and the evaluation results confirmed successful secure remote monitoring and cipher data sharing for IoT healthcare system.