System for restricting data access
US8042157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2006 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Feb 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A filter is arranged to selectively block or allow a data access command from an initiator according to whether the initiator is secure or insecure and whether a data source or destination being accessed is privileged or unprivileged. The data access command contains an identification of the initiator from which the data access command originated and an identification of the data source or destination being accessed. The security filter compares the initiator identification and data source or destination identification contained within the data access command with a list of those initiators defined as secure and a list of those data sources or destinations which are defined as unprivileged. The filter then blocks or allows the data access command signal according to a set of rules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.