Patent ID: 11876899
Assignee: PUFSECURITY CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A random number generator, comprising:
a static random number generator comprising an initial random number pool and a static random number pool, and configured to output a static random number sequence from the initial random number pool during an initialization phase and from the static random number pool during an operation phase;
at least one dynamic entropy source configured to generate a dynamic entropy bit;
a counter coupled to the at least one dynamic entropy source and configured to generate a dynamic random number sequence according to the dynamic entropy bit; and
a combining circuit coupled to the static random number generator and the counter, and configured to receive the static random number sequence, and output a true random number sequence to a lively random number pool according to the static random number sequence and the dynamic random number sequence;
wherein the static random number pool is configured to be updated when the lively random number pool is fully updated; and
the initial random number pool is configured to contain truly random entropy bits.