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Directory enabled secure multicast group communications

  • US 7,089,211 B1
  • Filed: 01/12/2000
  • Issued: 08/08/2006
  • Est. Priority Date: 01/12/2000
  • Status: Expired due to Fees
First Claim
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1. A method for securely establishing communication in a multicast group of nodes of a network, in which the network includes publisher nodes, subscriber nodes, a multi-master directory that stores information about events in the network and that can authenticate the subscriber nodes and the publisher nodes, wherein each of the subscriber nodes and the publisher nodes receives a unique private key and that can determine events that the subscribers and the publishers may process, the method comprising the steps of:

  • registering the subscribers and the publishers with an event server configured to determine whether the publishers are authorized to produce certain events corresponding to event types and whether the subscribers are authorized to receive the certain events in response to the step of registering; and

    generating, with the event server, a group session key for establishing the multicast group, the group session key being encrypted in a first message that has a prescribed format.

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