Flexible hybrid firewall architecture
US11212256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2020 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Feb 25, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0245
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A flexible hybrid firewall architecture is disclosed. A system implementing such an architecture includes an access control register, a memory having at least a region to which access is controllable by the access control register, the access control register including first field that contains a privilege identifier (ID) and a plurality of additional fields, each additional field containing control bits corresponding to a respective one of a plurality of permission levels, and control circuitry that, in response to receiving a transaction containing a transaction privilege ID, a security indicator, and a privilege indicator, controls access to the region when the transaction privilege ID matches the privilege ID contained in the first field by using the control bits of a field of the additional fields that corresponds to a security level indicated by the security indicator and a privilege level indicated by the privilege indicator of the transaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.