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US 2007/0165858 A1Published application
Pre-expiration purging of authentication key contexts
AssigneeIntel Corporation
InventorSanjay Bakshi
Life of this patent
Estimating the term…
Abstract
Various embodiments of methods and apparatuses for managing authentication key contexts are described herein. In various embodiments, the methods and apparatuses include selective purging of authentication key contexts of supplicants even if their authentication keys have not expired.
Claims25
An apparatus comprising:
- a storage medium to store one or more authentication key contexts for one or more authentication keys associated with authenticating one or more corresponding mobile subscriber stations to be serviced in one or more coverage areas of an access network, each mobile subscriber station to be serviced while the corresponding authentication key remains unexpired;
- and
- an authentication module coupled to the storage medium and configured to selectively purge one or more of the authentication key contexts of the one or more mobile subscriber stations from the storage medium based at least in part on one or more purging policies, even if the one or more authentication keys have not expired.
A method comprising:
- receiving a request from a base station or an authenticator associated with a base station of an access network to determine whether a mobile subscriber station has left one or more coverage areas of the access network;
- determining whether the mobile subscriber station has left one or more coverage areas of the access network based at least in part on one or more determination criteria;
- and
- on determining the mobile subscriber station has left the one or more coverage areas in accordance with the one or more determination criteria, responding to and informing a base station or an authenticator associated with a base station.
1 more element
An article of manufacture comprising:
- a storage medium;
- and
- first or second programming instructions, or both, stored in the storage medium;
- wherein the first programming instructions are configured to program a first apparatus to enable the first apparatus to purge an authentication key context of the mobile subscriber station from a storage medium of the first apparatus based at least in part on one or more purging policies, even if the authentication key has not expired;
- and
- wherein the second programming instructions are configured to program a second apparatus to enable the second apparatus to determine whether at least one of the one or more purging policies has been met.
3 more elements
A system comprising:
- a plurality of omnidirectional antennas;
- and
- a base station coupled to one or more of the antennas, and configured to purge an authentication key context of a supplicant from a storage medium of the base station based at least in part on one or more purging policies, even if the authentication key has not expired.
Dependencies are inferred from the claim text.