Apparatus and method for distributing management keys in a...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Having particular address related cryptography

Reexamination Certificate

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C713S162000

Reexamination Certificate

active

09400132

ABSTRACT:
A method and apparatus for distributing keys in a multicast domain is provided. In a secure multicast domain, a request to join a multicast group for a time period occurs. A key distributor which controls access to the multicast data group determines if the request will be accepted. If the request is accepted the key distributor assigns the member to a virtual channel, wherein each virtual channel is defined by a time period. A data group key is forwarded to the member as is a virtual channel key. The member can then receive and decode events from the data group on the assigned virtual channel.

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