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Method and terminal equipment for realizing GBA key

A terminal equipment and key technology, applied in wireless communication, electrical components, security devices, etc., can solve the problems of poor GBA key security, easy monitoring of machine-card interface, and easy interception of information.

Active Publication Date: 2010-11-17
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0018] The embodiment of the present invention provides a method and a terminal device for realizing a GBA key, which are used to solve the GBA problem caused by the open machine-card interface of the terminal device being easily monitored and the information used to generate the GBA key being easily intercepted. The problem of poor key security

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  • Method and terminal equipment for realizing GBA key
  • Method and terminal equipment for realizing GBA key
  • Method and terminal equipment for realizing GBA key

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Embodiment Construction

[0033] In the embodiment of the present invention, it is necessary to configure the shared key Km in the UE's ME and the BSF device in advance, and improve the Ks algorithm in the UE and the BSF device, so that the UE side and the network side use a unified algorithm to generate Ks, And utilize the shared Km when generating Ks.

[0034] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] see image 3 , is a schematic diagram of the GBA initialization phase of the 3G network provided by the embodiment of the present invention, the process describes the BGA initialization phase process in the GBA_ME mode, and the process includes:

[0036] Step 301: The UE sends an HTTP request to the BSF, and the request carries a subscriber identifier, such as IMSI (International Mobile Subscriber Identifier, International Mobile Subscriber Identifier).

[0037] Step 302, the BSF obtains the user profile and AV of t...

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Abstract

The invention discloses a method and terminal equipment for realizing a GBA key. The method is applied to a GBA_ME. A ME of a user terminal and authentication service function (BSF) equipment are provided with first keys. After the user terminal requests the BSF equipment to start a GBA key flow, the method comprises the following steps that: the user terminal generates authentication informationafter the BSF equipment passes the authentication of the user terminal and sends the authentication information to the BSF equipment; after the user terminal passes the authentication of the BSF equipment according to the authentication information, the BSF equipment generates Ks according to the first key configured on the BSF equipment; the ME of the user terminal generates Ks by adopting the same mode as that of the BSF equipment according to the first key configured on the ME; and the BSF equipment and the user terminal respectively generate the GBA key Ks_NAF shared between the user terminal and a network application function (NAF) according to the Ks respectively generated by the BSF equipment and the user terminal. The method and the terminal equipment for realizing the GBA key canimprove safety of the GBA key.

Description

technical field [0001] The present invention relates to the field of mobile communications, in particular to a method for implementing GBA keys and a terminal device for implementing GBA keys. Background technique [0002] With the development of data services, both operators and users need a reliable authentication mechanism to ensure legal service usage and correct charging. Especially in the 3G (third generation mobile communication network) business, many applications require two-way authentication between the terminal (such as UE) and the application server, such as mobile TV (MBMS). In order to verify the use of services by legitimate users, Login authentication is required between the terminal and the service system; if the service data stream needs to be scrambled or encrypted, secure communication is required between the terminal and the service system. And if many businesses use their own independent certification, it will cause repeated equipment replacement. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/02H04W12/06H04W12/041
Inventor 路晓明彭华熹张慧媛侯清富罗红曹雪霏
Owner CHINA MOBILE COMM GRP CO LTD
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