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US 2014/0195576 A1Published application
Hardware Random Number Generator
AssigneeAdvanced Micro Devices, Inc.
InventorsDavid A. Kaplan, Winthrop J. Wu
Life of this patent
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Abstract
A random number generator may include an input configured to receive a plurality of entropy bits generated by an entropy source of a random number generator, wherein the random number generator is configured to generate a plurality of random numbers; and an entropy health monitor coupled with the input, wherein the entropy health monitor is configured to perform a corrective action based on the plurality of entropy bits.
Claims20
An apparatus, comprising:
- an input configured to receive a plurality of entropy bits generated by an entropy source of a random number generator, wherein the random number generator is configured to generate a plurality of random numbers;
- and
- an entropy health monitor coupled with the input, wherein the entropy health monitor is configured to perform a corrective action based on the plurality of entropy bits.
A hardware random number generator, comprising:
- an entropy source configured to generate a plurality of entropy bits;
- an entropy accumulator coupled with the entropy source, wherein the entropy accumulator is configured to update a seed value based on the plurality of entropy bits;
- a deterministic random bit generator coupled with the entropy accumulator, wherein the deterministic random bit generator is configured to generate one or more final random numbers based on the updated seed value;
- and
- an entropy health monitor coupled with the entropy source, wherein the entropy health monitor is configured to perform a corrective action based on the entropy bits.
2 more elements
A method of generating a random number, comprising:
- receiving from an entropy source a plurality of entropy bits;
- generating a plurality of final random numbers based on the plurality of entropy bits;
- and
- inhibiting output of at least one of the plurality of final random numbers based on the plurality of entropy bits.
1 more element
Dependencies are inferred from the claim text.