Device and method for generating random bit sequences

Device for generating random bit sequences comprising: at least one Silicon Photomultiplier sensor configured to generate a sequence of endogenous random current pulses as a result of an impact ionisation driven self-amplification of thermally generated charge carriers to which the at least one SiPM sensor can be subject; a data processing unit configured to receive said sequence of endogenous random current pulses and to determine a random bit sequence to be proved to an end-user.