Security capsule for enabling restricted features of a memory device
US11880229B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2020 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Feb 3, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processing device initializes a memory device in an unauthenticated state in which the memory device is unable to execute one or more restricted commands. The processing device accesses a security capsule that is digitally signed using a private key. The processing device transitions the memory device to an authenticated state based on verifying that the security capsule is validly signed. The processing device uses a public key corresponding to the private key to verify the security capsule is validly signed. While in the authenticated state, the memory device is able to execute the one or more restricted commands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.