Method and system for electronically securing an electronic device using physically unclonable functions
US8290150B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2007 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Jan 3, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3249
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention is directed to a system for securing an integrated circuit chip used in an electronic device by utilizing a circuit or other entity to produce physically unclonable functions (PUF) circuit to generate encryption keys, such as an RSA public or private key. A PUF circuit, according to its name and configuration, performs functions that are substantially difficult to be duplicated or cloned. This allows the invention to provide a unique and extremely secure system for authentication. In operation, the stored parameters can be used to more efficiently and quickly authenticate the device without the need to run the usual more burdensome encryption key generation processes without compromising the level of security in the device. Such a system can be used to substantially eliminate the time to produce encryption keys when a user needs to authenticate the device at power up or other access point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.