Distributed group key management scheme for secure many-to-many communication
A technology of secure communication and key management system, applied in the field of secure communication systems, and can solve problems such as fragility
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[0021] refer to figure 1 , which illustrates a scalable secure multicast protocol supporting many-to-many communications based on the principles of the present invention. An embodiment of the present invention is a communication system 20 that uses a distribution tree-based key management scheme (DTKM) for secure many-to-many packet communication. System 20 is scalable and members 22 are trusted equally. System 20 equally distributes group control responsibilities and key distribution tasks among members.
[0022] Each member 22 is assigned a binary ID and these IDs are used to define key associations for each member 22 . Members of the key association group 22a contact each other to report membership changes and exchange keys. Members 22 are equally trusted and can all be senders. Prospective members can contact any active member to join the group. The active member verifies the new member's certificate and assigns it a unique binary ID 24 . ID assignment is done locall...
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