Production of cryptographic keys for an embedded processing device
US8761390B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 30, 2008 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Mar 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/84
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for producing cryptographic keys for use by an embedded processing device within a manufactured product. A pseudo random number generator is seeded with entropy data gathered by the embedded device, and the result is used to generate a public-private key pair. The process can be carried out during manufacturing so that the public key of each manufactured product can be stored in a database along with a unique identifier for the embedded device associated with the key. In one particular example, a vehicle having an installed telematics unit uses the key generating process to self-generate keys using entropy data available to the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.