Network with secure communications sessions
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United States of America Patent
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Jun 10, 1997
Issued Date -
N/A
app pub date -
Jan 11, 1996
filing date -
Oct 24, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system which uses three way password authentication, and s.sup.3 DES to encrypt different portions of a logon packet with different keys based on the nature of the communications link. Nodes attached to a particular LAN can have one level of security for data transfer within the LAN while data transfers between LANs on a private network can have a second level of security and LANs connected via public networks can have a third level of security. The level of security can optionally be selected by the user. Data transfers between nodes of a network are kept in separate queues to reduce queue search times and enhance performance. Each session maintains its own key dependent s.sup.3 DES S-boxes to enhance security.
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