Method and device for generating a random number in a USB (universal serial bus) peripheral
US7958175B2 · kind B2 · utility
1Cited by
4References
21Claims
0Family size
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Key dates
| Filing date | Jan 12, 2007 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Mar 6, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/588
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for generating a random number, comprising steps of receiving a data transmission binary signal subjected to phase jitter, generating several oscillator signals substantially of a same average frequency and having distinct respective phases, sampling a status of each of the oscillator signals upon the appearance of edges of the binary signal, and of generating a random number using the statuses of each of the oscillator signals. The method may be applied to an integrated circuit usable in a smart card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.