Random number generator using an incrementing function
US9792089B2 · kind B2 · utility
1Cited by
2References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 10, 2014 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Sep 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0866
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A random number generator uses a looped circuit that produces pulses dependent on manufacturing variations and noise, and fed into a counting circuit. In certain embodiments, the technology can be merged with a Physical Unclonable Function (PUF) such that a single circuit provides both 1) bits that are unique to each chip that remain fairly similar each time they are queried on the same chip; as well as 2) bits that are random, i.e., different each time the randomness is queried, even on the same device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.