Universal flash storage (UFS) device and method of writing data to a replay protected memory block (RPMB) region of a UFS
US12124710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2023 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Jul 3, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/588
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of writing data to a protected region in response to a request from a host includes receiving a first write request including a first host message authentication code and a first random number from the host, verifying the first write request based on a write count, the first random number, and the first host message authentication code, updating the write count based on a result of verifying the first write request, generating a first device message authentication code based on the updated write count and the first random number, and providing the host with a first response including the first device message authentication code and a result of the verifying of the first write request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.