Multilevel secure workstation
US5075884A · kind A · utility
47Cited by
14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1987 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Dec 23, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/009
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer workstation having a window output display for potential use in security-sensitive environments provides multilevel security by physical isolation of processes in predefined security levels, each process or like-classified group of processes is displayed only through a suitably labeled window, access to the window requiring access through a previously security qualified physical signal path. The invention does not compromise security by mixing a software-based security environment with other untested software. All security is hardware-based.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.