Method and system for disaster recovery in network systems

Details Method and system for disaster recovery in network systems Method and system for disaster recovery in network systems

2006-12-27

2011-11-15

Zand, Kambiz (Department: 2434)

Cryptography

Key management

Key escrow or recovery

C726S006000, C714S004110, C713S156000

Reexamination Certificate

active

08059821

ABSTRACT:
A method and apparatus for managing and backing-up a set of security keys are disclosed. The keys are generated first at a backup site and then are transmitted from the backup site to the primary site. The primary site then uses these keys to generate message authentication code for messages generated at the primary site. A portion of the key information is transmitted to a client site in the message. The client site then provides the message authentication code back to the service in a subsequent request. The message authentication code generated at the primary site is readable by the backup site. The primary site then takes the portion of the key information and uses this to verify the received message authentication code. In alternative embodiments the actual values used for generating the message authentication code are not transmitted in the message nor are the exposed to the public side of the service.

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