The invention relates to an on-
chip true random
number generator, which comprises a
random noise generator, an AD (Analog to Digital) sampler, a
noise converter and a sequence generator. The on-
chip true random
number generator is characterized in that an on-
chip temperature sensor is used as a
noise source of the true random
number generator; a temperature value is converted into a
digital signal through AD sampling; the
digital signal obtained through sampling is subjected to
noise extraction conversion, and a group of true random sequences is obtained; and finally, a plurality of groups of random sequences are assembled through the sequence generator, and true random numbers in any bit are generated. An on-chip noise
signal is used as a
signal source of the true random number, so the characteristics of randomness, unpredictability and the like are realized, and the generated random numbers are in uniform distribution, comfort to the characteristics of irrelevance and the like and belongs to high-quality true random numbers. The on-chip true random number generator belongs to an on-chip true random number generator realized by using an
integrated circuit; the technologies of chip design
production line, synchronous
processing, resource reuse and the like are utilized; and the on-chip true random number generator has the advantages that the cost is low, the stability is good, the velocity is high, the realization is easy, and the like.