System and method for multiple virtual private network...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Packet header designating cryptographically protected data

Reexamination Certificate

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C713S153000, C713S154000, C713S155000, C713S161000, C709S223000, C709S229000

Reexamination Certificate

active

06938155

ABSTRACT:
A system and method for providing multiple virtual private networks from a computer system. The computer system communicates with a remote computer system in order to allow encrypted data traffic to flow between the respective systems. Two phases are used to authenticate the computer systems to one another. During the first phase, digital certificates or pre-shared keys are used to authenticate the computer systems. A phase1ID rules list contains authentication rules for local-remote computer pairs. During the second phase, a hash value is used to authenticate the computer systems and a security association payload is created. The remote system's IP address is used for connecting. The phase1ID rules list corresponds to one or more phase2ID rules lists. If the remote ID is not found in the phase2ID rules list, a default rule is used based upon the phase1ID rules list.

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