PPUF PPUF IoT IoT DATA TRANSFER METHOD BASED ON PUBLIC PHYSICALLY UNCLONABLE FUNCTION IoT COMMUNICATION SYSTEM BASED ON PUBLIC PHYSICALLY UNCLONABLE FUNCTION AND IoT DEVICE

摘要

In the PPUF-based data transmission method, a transmitter determines a response value output at a reference time after a first challenge value and the first challenge value are input by using a delay characteristic of a public physically unclonable function (PPUF). A transmitter transmitting information including the reference time and the response value, transmitting data encrypted using the first challenge value as a secret key, a receiver receiving the information, the PPUF circuit having the delay characteristic Determining a specific second challenge value for outputting the response value at the reference time from a challenge value input time, and decoding the encrypted data received by the receiver using the second challenge value as a secret key; It includes.