Adaptive generation of a pseudo random number generator seed
US8189778B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jul 7, 2008 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Mar 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0662
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A seed for use in a cryptographic operation for an electronic device is determined by estimating the number of entropy data bits needed to satisfy a predetermined security strength of the cryptographic operation. The estimation is based on an entropy strength of a string of entropy data bits. Entropy strength is a measure of randomness. Furthermore, guiding a determination of the seed differently according to the estimated number of entropy data bits may be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.