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| | Introduction to KeySAFE - Background |
 | | Research and design of KeyKOS (and its forerunner, GNOSIS) was begun in the early 1970s at Tymshare Corporation. |
 | | From the beginning, the design goals of the system included high standards of security, such as strong isolation, enforcement of the Principle of Least Privilege, tamper resistance, trusted path facilities, secure backup and recovery, and many other aspects which were later described in the TCSEC. |
 | | After the acquisition of Tymshare by McDonnell Douglas Corporation in 1984 and the subsequent divestiture of various R and D activities, Key Logic was formed as a totally independent company spun off from McDonnell Douglas in April, 1985. |
| www.cis.upenn.edu /~KeyKOS/agorics/KeyKos/keysafe/Background.html (829 words) |
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