Secure input voltage adjustment in processing devices
US10209726B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Dec 20, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Secure voltage adjustment techniques for computing systems and processing devices are presented herein. In one example, a method of controlling operating voltages for a processing device includes initializing a security portion of the processing device after application of input voltages to the processing device as supplied by voltage regulation circuitry according to voltage identifiers (VIDs) established for the processing device. The method includes, in the security portion, generating adjusted input voltages based on at least the VIDs and authenticated voltage offset information stored according to a digitally signed security process, and instructing the voltage regulation circuitry to supply the adjusted input voltages to the processing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.