Cryptography – Key management – Key distribution
Reexamination Certificate
2007-02-20
2007-02-20
Sheikh, Ayaz (Department: 2131)
Cryptography
Key management
Key distribution
C713S163000, C713S168000
Reexamination Certificate
active
10715721
ABSTRACT:
An approach for arriving at a shared secret key in a multicast or broadcast group environment is disclosed. The key exchange protocol permits nodes within a multicast or broadcast group to compute a shared secret key in a binary fashion, whereby a shared secret key is generated for a pair of nodes at a time. Once the shared secret key is computed by the pair, the nodes within the pair is viewed as a single entity by a node that is to be joined. This process is iteratively performed until all the nodes within the multicast group attain a common shared secret key. Under this approach, the number of messages exchanged between the nodes for establishing the secured channel is significantly reduced.
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Cisco Technology Inc.
Hickman Palermo & Truong & Becker LLP
LaForgia Christian
Sheikh Ayaz
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