Silicon key attestation
US10536271B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2017 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Jun 6, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/32
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed for generating one or more hardware reference keys (HRK) on a computing device, and for attesting to the validity of the hardware reference keys. An initial hardware reference key can be a silicon attestation key (SIK) generated during manufacture of a computing system, such as a system-on-a-chip. The SIK can comprise an asymmetric key pair based at least in part on an identifier of the processing system type and a unique identifier of the processing system. The SIK can be signed by the computing system and stored thereon. The SIK can be used to generate further HRKs on the computing device that can attest to the processing system type of the computing device and an operating system version that was running when the HRK was generated. The computing device can generate an HRK attestation (HRKA) for each HRK generated on the computing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.