Key revocation
US10181956B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2015 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Jun 24, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3247
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Example implementations relate to key revocation. For example, a system for key revocation may comprise a processor, an embedded controller, a non-volatile memory storing a system instruction signing key authorization data element, wherein the data element includes a system instruction signing key, a signing key number and a signature. The embedded controller may include a plurality of keys to verify the data element, and a one-time programmable (OTP) memory and a key among the plurality of keys that is revocable using the OTP memory, wherein revocation of the key permanently prevents the embedded controller from utilizing the key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.