Real time configuration of multiple true random number generator sources for optimized entropy generation

A system for random number generation, the system comprising:

• a multiplexer;
• a memory device;
• and
• at least one processing unit coupled with the multiplexer and the memory device, the at least one processing unit is configured to perform a method comprising:
• configuring a mapper to feed a plurality of inputs of a random number generation system using a subset of noise sources from a plurality of noise sources, wherein the random number generation system generates a random number based on the plurality of inputs;
• evaluating the subset of noise sources;
• detecting that a first noise source from the subset of noise sources has degraded in quality;
• evaluating a second noise source from the plurality of noise sources, the second noise source not being in the subset of noise sources;
• in response to the second noise source satisfying at least a predetermined threshold criterion, replacing the first noise source with the second noise source in the subset of noise sources;
• and
• forwarding, by the mapper, outputs from each of the subset of noise sources to corresponding inputs of the random number generation system, the outputs providing random bit streams to facilitate generating the random number by the random number generation system.

A computer program product for generating random numbers, the computer program product comprising a storage medium readable by one or more processing circuits, the storage medium storing instructions executable by the one or more processing circuits to cause a method to be performed, the method comprising:

• configuring, by a controller, a mapper to feed a plurality of inputs of a random number generation system using a subset of noise sources from a plurality of noise sources, wherein the random number generation system generates a random number based on the plurality of inputs;
• evaluating the subset of noise sources;
• detecting that a first noise source from the subset of noise sources has degraded in quality;
• evaluating a second noise source from the plurality of noise sources, the second noise source not being in the subset of noise sources;
• in response to the second noise source satisfying at least a predetermined threshold criterion, replacing the first noise source with the second noise source in the subset of noise sources;
• and
• forwarding, by the mapper, outputs from each of the subset of noise sources to corresponding inputs of the random number generation system, the outputs providing random bit streams to facilitate generating the random number by the random number generation system.