Method and apparatus for a non-deterministic random bit generator (NRBG)
US9544139B2 · kind B2 · utility
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5References
8Claims
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Key dates
| Filing date | Dec 29, 2011 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Dec 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A hardware-based digital random number generator is provided. In one embodiment, a processor includes a digital random number generator (DRNG) to condition entropy data provided by an entropy source, to generate a plurality of deterministic random bit (DRB) strings, and to generate a plurality of nondeterministic random bit (NRB) strings, and an execution unit coupled to the DRNG, in response to a first instruction to read a seed value, to retrieve one of the NRB strings from the DRNG and to store the NRB string in a destination register specified by the first instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.