E-fuses for storing security version data
US7461268B2 · kind B2 · utility
12Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2004 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Dec 25, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and devices that may be utilized in systems to dynamically update a security version parameter used to encrypt secure data are provided. The version may be maintained in persistent storage located on a device implementing the encryption, such as a system on a chip (SOC). The persistent storage does not require battery backing and, thus, the cost and complexity associated with conventional systems utilizing battery backed storage may be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.