Entropy source for random number generator
US9727310B2 · kind B2 · utility
3Cited by
6References
25Claims
0Family size
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Key dates
| Filing date | Mar 31, 2015 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Oct 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/588
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An entropy source extracts noise associated with the sampling of an RC circuit. The decay time of the RC circuit and other parameters are selected so that a buffer used to sample the voltage remains in an indeterminate voltage region over multiple clock cycles to generate random transitions. The entropy source may be implemented to be compliant with government standards for entropy sources utilized to generate random numbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.