Multilevel secure workstation
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United States of America Patent
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Dec 24, 1991
Grant Date -
N/A
app pub date -
Dec 23, 1987
filing date -
Dec 23, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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