Apparatus and method for secure transmission of data over an unsecure transmission channel
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United States of America Patent
Stats
-
May 8, 1990
Issued Date -
N/A
app pub date -
Apr 14, 1989
filing date -
Sep 25, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus and methods, readily adapted to interface with a standard data transmission network having an unsecure transmission channel, e.g., 'Ethernet,' for the provision of secure transmission of data over the network channel in a manner which is essentially transparent to the standard network devices and users, thereof, are provided. Various encryption keys are generated and utilized within the system to disguise or encrypt information transferrred between network nodes. The encryption keys are made known only to those network devices which are permitted to handle information encrypted with the encryption keys.
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