05822435 is referenced by 72 patents and cites 20 patents.

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.

Title
Trusted path subsystem for workstations
Application Number
911900
Publication Number
5822435
Application Date
September 18, 1996
Publication Date
October 13, 1998
Inventor
Thomas R Markham
Anoka
MN, US
Mark H Hanson
Eagan
MN, US
William E Boebert
Minnapolis
MN, US
Agent
Schwegman Lundberg Woessner and Kluth P A
Assignee
Secure Computing Corporation
MN, US
IPC
H04L 9/00
View Original Source