Storing an entropy signal from a self-timed logic bit stream generator in an entropy storage ring
US9417844B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2013 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Sep 10, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/584
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Self-Timed Logic Entropy Bit Stream Generator (STLEBSG) outputs a bit stream having non-deterministic entropy. The bit stream is supplied onto an input of a signal storage ring so that entropy of the bit stream is then stored in the ring as the bit stream circulates in the ring. Depending on the configuration of the ring, the bit stream as it circulates undergoes permutations, but the signal storage ring nonetheless stores the entropy of the injected bit stream. In one example, the STLEBSG is disabled and the bit stream is no longer supplied to the ring, but the ring continues to circulate and stores entropy of the original bit stream. With the STLEBSG disabled, a signal output from the ring is used to generate one or more random numbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.