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Method and apparatus for distributing and updating private keys of multicast group managers using directory replication

  • US 7,383,436 B2
  • Filed: 09/29/2004
  • Issued: 06/03/2008
  • Est. Priority Date: 12/22/1999
  • Status: Expired due to Fees
First Claim
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1. A method for managing session keys for a secure multicast group that includes a plurality of multicast proxy service nodes in a communication network, the method comprising the steps of:

  • creating and storing an original session key associated with the secure multicast group in a first directory;

    receiving through periodic replication of the first directory a new session key for the secure multicast group, for use after addition of a first multicast proxy service node to the secure multicast group, from a second multicast proxy service node of the plurality of multicast proxy service nodes; and

    receiving the new session key comprises receiving the new session key from a replication service agent (RSA) that is operable to replicate key information from a local copy of the first directory that is associated with the second multicast proxy service node;

    wherein the local copy of the first directory is associated with a directory system agent (DSA) for communicating with one or more of the multicast proxy service nodes that include the second multicast proxy service node.

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