Flash memory apparatus for physical unclonable function and embodying method of the same
US9870829B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2015 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Dec 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A flash memory apparatus having a physical unclonable function (PUF) and an embodying method of the same are provided. To elaborate, the flash memory apparatus includes a flash memory unit that comprises a main memory area and a peripheral memory area; a challenge input unit that receives input of a challenge value; a read voltage setting unit that sets a read voltage based on the input challenge value; a data reading unit that reads data by applying the read voltage to a memory cell included in a pre-set memory area in the peripheral memory area each time the challenge value is input; and a response output unit that outputs the read data as a response value corresponding to the challenge value, wherein the pre-set memory area consists of a plurality of memory cells comprising two or more memory cells having different threshold voltage values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.