Memory data protection based on authenticated encryption
US11269786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2018 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Dec 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1052
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, apparatus, and/or methods to provide memory data protection. In one example, authenticated encryption may be enhanced via a modification to an authentication code that is associated with encrypted data. The authentication code may be modified, for example, with a nonce value generated for a particular write to memory Decrypted data, generated from the encrypted data, may then be validated based on a modified authentication code. Moreover, data freshness control for data stored in the memory may be provided based on iterative authentication and re-encryption. In addition, a counter used to provide a nonce value may be managed to reduce a size of the counter and/or a growth of the counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.