Reliable generation of a device-specific value
US7681103B2 · kind B2 · utility
75Cited by
39References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2006 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | May 28, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/42
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device-specific value is reliably generated in a device. In a first component of the device, a first digital value is generated that is substantially dependent fabrication variation among like device. Redundancy information is computed based on the first digital value. A subsequent digital value is later generated in the first component of the device. The first digital value is then determined in a second component of the device from the subsequent digital value and the redundancy information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.