Trusted path subsystem for workstations
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United States of America Patent
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Oct 13, 1998
Issued Date -
N/A
app pub date -
Sep 18, 1996
filing date -
Jul 10, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for ensuring secure communication over an unsecured communications medium between a user working on an unsecured workstation or computer and a host computer. A secure user interface is created by inserting a trusted path subsystem between input/output devices to the workstation and the workstation itself. Data transferred from the input/output devices is intercepted, encrypted and transmitted in packets to the host computer. Packets of screen display data from the host computer are decrypted and presented within a user-defined screen overlay.
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