Synthetic physically unclonable function derived from an imaging sensor

A system configured to handle a sensor, comprising:

• a processor configured to define or to receive information about a subset of sensor components of the sensor, said subset of sensor components being challengeable under uniform conditions;
• a receiver configured to receive output signal values from said subset of sensor components;
• for each component of the subset of sensor components, the processor being configured to determine the statistical moment of order i of the temporal distribution of the output signal value of said each sensor component;
• the processor being further configured to determine one or more one or more outliers sensor components, said outliers sensor components being components whose ith order statistical moment has a difference with the mean value of the spatial distribution of the chosen moment over the subset superior in absolute value to a threshold, the ith order statistical moment of one sensor component being estimated on the temporal distribution associated to this sensor component.