Key management system
US12413394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2023 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Jun 18, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0894
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Examples herein describe techniques for method of accessing encrypted data. The techniques include receiving, via a memory controller, a first memory request to a first memory region, where the first memory region is encrypted based on a first key, and incrementing, based on the first memory request, a first counter associated with the first key. The techniques further include, in response to determining that the first counter exceeds a first threshold, initiating a key rolling operation to cause the first memory region to be encrypted based on a second key. The techniques further include tracking an address range of the first memory region that has been encrypted based on the second key, and, in response to determining that an address of a second memory request is outside of the address range, causing the second memory request to be completed based on the first key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.