Internet protocol security decryption with secondary use...

Details Internet protocol security decryption with secondary use... Internet protocol security decryption with secondary use...

2007-11-20

2007-11-20

Vu, Kim (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

C713S153000, C713S189000, C713S160000, C710S260000

Reexamination Certificate

active

10051668

ABSTRACT:
A system for improved decryption performance includes a computer in electronic communication with an encrypted network. A controller performs a decryption operation on an encrypted packet received from the network, and the computer asserts an interrupt prior to the system completing transfer of the decrypted packet back to host memory to reduce the additional latency a packet suffers during Secondary Use. An additional interrupt may be asserted after the Secondary Use operation is complete, to ensure that the Secondary Use packet is processed. A method for improving decryption performance similarly includes asserting an interrupt prior to the complete transfer of a decrypted packet from a controller back to host memory during Secondary Use. The method may further include asserting an additional interrupt after the Secondary Use operation is complete, to ensure that the Secondary Use packet is processed.

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