Abstract: Methods and endpoint nodes and controllers are disclosed for mutual authentication and key exchange. In an embodiment, physical unclonable function circuits on the endpoint nodes are used in combination with key masks to allow mutual authentication and key exchange between the endpoint nodes.

Abstract: Methods and endpoint nodes and controllers are disclosed for mutual authentication and key exchange. In an embodiment, physical unclonable function circuits on the endpoint nodes are used in combination with key masks to allow mutual authentication and key exchange between the endpoint nodes.

Abstract: Disclosed are an on-line health management device and an on-line health management method for an insulated gate bipolar transistor. The device comprises: an electrothermal detection module, configured to detect a junction temperature and a temperature rise of the insulated gate bipolar transistor based on operating condition parameters of the insulated gate bipolar transistor in combination with a structure of the insulated gate bipolar transistor; a degradation detection module, configured to detect a performance degradation degree of the insulated gate bipolar transistor based on the operating condition parameters, the structure, the junction temperature and the temperature rise of the insulated gate bipolar transistor; and a lifetime detection module, configured to detect a consumed lifetime of the insulated gate bipolar transistor based on the performance degradation degree thereof.