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2022. Demonstrating Virtual IO For Internet Of Things Devices Secured By TLS Server In Secure Element. 2022 IEEE/ACM Seventh International Conference on Internet-of-Things Design and Implementation (IoTDI). :111—112.
This demonstration presents an internet of things device (thermostat), whose security is enforced by a secure element (smartcard) running TLS server, and using Virtual Input/Ouput technology. The board comprises a Wi-Fi system on chip (SoC), a micro-controller managing sensor (temperature probe) and actuator (relay), and a javacard. All device messages are sent/received over TLS, and processed by the secure element. Some of them are exported to micro-controller in clear form, which returns a response, sent over TLS by the smartcard.