Patent ID: 8912817

Claim:
A reconfigurable multi-port physical unclonable functions (RM-PUFs) circuit, comprising: a) an input signal interface; b) a first control circuit module; c) at least two RM-PUFs circuit units, each RM-PUFs circuit unit comprising a second control circuit module, an input module, an output module, and a deviation generation module; and d) an output signal interface; wherein the second control circuit module is provided with an enable signal input terminal, an excitation signal output terminal, a control signal output terminal, and a key port number output terminal; the input module is provided with an external signal input terminal, an excitation signal input terminal, and a signal output terminal; the output module is provided with a port number input terminal, a signal input terminal, and a signal output terminal; and the deviation generation module is provided with a control signal terminal, a signal input terminal, and a signal output terminal; the input signal interface is connected to the first control circuit module, the first control circuit module is connected to the RM-PUFs circuit units, and the RM-PUFs circuit units are connected to the output signal interface; the excitation signal output terminal of the second control circuit module is connected to the excitation signal input terminal of the input module; the key port number output terminal of the second control circuit module is connected to the port number input terminal of the output module; the control signal output terminal of the second control circuit module is connected to the control signal terminal of the deviation generation module; the signal output terminal of the input module is connected to the signal input terminal of the deviation generation module; the signal output terminal of the deviation generation module is connected to the signal input terminal of the output module; and access signals of the external signal input terminal of the input module comprise a data signal, an address signal, and a control voltage signal.