Random number generator, encryption/decryption secret key generator and method based on characteristics of memory cells
US11449310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2019 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Feb 16, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/62
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for generating a random number, applied in a random number generator coupled to a flash memory is disclosed. the method comprises: selecting a plurality of cells from the flash memory; initializing the selecting cells of the flash memory; programming the selecting cells to obtain a plurality of first potential values of the selecting cells; re-initializing the selecting cells of the flash memory; re-programming the selecting cells to obtain a plurality of second potential values of the selecting cells; and processing the first potential values and the second potential values according to a predetermined algorithm to generating the random number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.