Secure firewall supporting different levels of authentication based on address or encryption status
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United States of America Patent
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Nov 9, 1999
Grant Date -
N/A
app pub date -
Sep 18, 1996
filing date -
Sep 18, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for regulating the flow of messages through a firewall having a network protocol stack, wherein the network protocol stack includes an Internet Protocol (IP) layer, the method comprising establishing a security policy, determining, at the IP layer, if a message is encrypted, if the message is not encrypted, passing the unencrypted message up the network protocol stack to an application level proxy, and if the message is encrypted, decrypting the message and passing the decrypted message up the network protocol stack to the application level proxy, wherein decrypting the message includes executing a process at the IP layer to decrypt the message.
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