Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-06-29
2011-10-11
El Hady, Nabil (Department: 2434)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S153000, C713S171000, C726S004000, C380S270000
Reexamination Certificate
active
08037305
ABSTRACT:
A method and logic encoded in tangible media and apparatus for securing links between a mesh point and one or more identities of one or more parent mesh points of a wireless mesh network in order to secure the links. A first association is carried out to one of the identities of one of the parent mesh points. The first mesh point undergoes a mutual authentication with an authenticator and announces the possibility of multiple links and/or multiple paths. The authentication generates a first master key from which the root master key of the key hierarchy is derived so that other master keys for different identities are derivable using a hierarchy. The mesh point undergoes a 4-way handshake to derive a first transient key. Other transient keys are obtained by a fast roaming method without having to re-undergo a backend authentication, the other transient keys being for other links and/or paths and derived using the hierarchy.
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Cam-Winget Nancy
Dharanipragada Kalyan R.
Rahman Shahriar I.
Cisco Technology Inc.
El Hady Nabil
Inventek
Rosenfeld Dov
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