Trusted path subsystems for workstations

Details Trusted path subsystems for workstations Trusted path subsystems for workstations

H - Electricity

04

L

H04L 9/00 (2006.01) G06F 1/00 (2006.01) G06F 12/14 (2006.01) G06F 21/00 (2006.01) H04L 12/28 (2006.01)

Patent

CA 2139744

A method and apparatus for ensuring secure com- munication 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 in- put/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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