The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2013
Filed:
May. 24, 2007
Wenliang Liang, Shenzhen, CN;
Jianjun Wu, Shenzhen, CN;
Wenliang Liang, Shenzhen, CN;
Jianjun Wu, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method for generating and distributing MIP security key after Re-Authentication, including: an AAA Server generates an EMSK during a Re-Authentication process; the MS generate a new first MIP security key for the MS according to the EMSK, and replaces the corresponding old first MIP security key with the new first MIP security key; and a HA receives new second MIP security key information for the HA which is sent by the AAA Server actively, or requests from the AAA Server the new second MIP security key information for the HA, and replaces the corresponding old second MIP security key that is locally stored with the new second MIP security key that is sent by the AAA Server actively or requested from the AAA Server. The present invention ensures execution of MIP Registration process after Re-Authentication.