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Key generating and distributing method and system

A key and medium key technology, applied in wireless communication, electrical components, security devices, etc., can solve the problems of lack of mobile IP channels and the inability to establish keys for user authentication, and achieve the effect of ensuring continuity

Inactive Publication Date: 2011-03-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to propose a method and system for generating and distributing keys in WiMAX and WiFi interworking, so as to overcome the gap between the interworking unit and the gateway of the WiMAX core network when the terminal accesses the WiMAX core network through the WiFi network. The problem that the mobile IP channel will not be established due to the lack of user authentication keys

Method used

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  • Key generating and distributing method and system
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  • Key generating and distributing method and system

Examples

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Embodiment Construction

[0062] In the present invention, when the terminal accesses the WiMAX core network through the WiFi network, in the process of access authentication, the MSK and EMSK of the WiFi network are generated between the terminal and the AAA server of the WiMAX core network; the AAA server will MSK, and the key derived from EMSK are sent to the authenticator of the WiFi network; the authenticator of the WiFi network uses the MSK for air interface authentication; when the terminal initiates a PMIP (Proxy Mobile IP, proxy mobile IP) registration , the authenticator of the WiFi network passes the key derived from the EMSK required for PMIP registration to the interworking unit for user authentication of the mobile IP channel between the interworking unit and the gateway of the WiMAX core network;

[0063] In addition, for the same subscriber, the terminal, the AAA server and gateway of the WiMAX core network support only one set of keys to support two sets of keys, one set of keys is used...

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Abstract

The invention discloses key generating and distributing method and system. The key generating and distributing method comprises the following steps that: when a terminal is accessed to a WiMAX core network through a WiFi network, MSK (Minimum Shift Keying) and EMSK (Extended Master Session Key) of the WiFi network are generated between the terminal and an AAA server of the WiMAX core network in the authentication access process; and the AAA server issues the MSK and a key derived by the EMSK to an authentication device of the WiFi network. The invention solves the problem that a mobile IP passage from an interworking unit to a gateway of the WiFi network can not be built because of the lack of user authentication, the data communication security of the whole network can be ensured, and in addition, the continuity of user service can be ensured.

Description

technical field [0001] The present invention relates to WiMAX network and WiFi network technologies, in particular to a method and system for key generation and distribution in WiMAX and WiFi intercommunication. Background technique [0002] World Interoperability for Microwave Access (WiMAX, World Interoperability for MicrowaveAccess) is a broadband wireless access technology based on the IEEE 802.16 standard, which can effectively use limited wireless spectrum resources to provide large air interface bandwidth (up to 70Mbps data transmission capability ) and wider transmission coverage (wireless signal transmission distance up to 50 kilometers). A WiFi (Wireless Fidelity, wireless fidelity) network is also a wireless network capable of providing relatively high bandwidth, and has been deployed in large numbers in offices, homes, hotels and other places at present. However, as a short-distance wireless technology, WiFi has a small network coverage (about 100 meters), and g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/04H04W12/06H04W36/14H04W92/02H04W12/041H04W12/0431H04W12/069
Inventor 涂杨巍楚俊生
Owner ZTE CORP