System and method with specific ordered execution over physical elements
US9459833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2013 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Jun 17, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0866
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to semiconductor devices, and more particularly, to systems, devices and methods of utilizing inherent differences among physical elements in an electrical component to generate unique and non-duplicable numbers that are statistically random and repeatable. These bits may be applied as identifications, random number seeds or encryption keys in many security applications, e.g., a financial terminal. An integrator is coupled to a plurality of physical elements, selects two physical elements or element sets, and generates an integrated difference signal according to a difference between these two physical elements or element sets. A comparison-decision logic further determines whether the difference between the selected two physical elements is associated with a bit of “1” or “0”. In some embodiments, a multi-bit number constitutes multiple bits each of which may be derived from a difference between two randomly selected physical elements or element sets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.