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Method for realizing GBA secret key and pluggable equipment of terminal

A device and key technology, applied in the direction of synchronous sending/receiving encryption devices, digital transmission systems, electrical components, etc., can solve the problems of poor GBA shared key security, and achieve the effect of ensuring security

Inactive Publication Date: 2014-09-17
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the GBA_ME mode is applied to the SD card scenario, there will be security risks, that is, an attacker can use the loopholes in this scheme to intercept the parameters required by the GBA key generation algorithm (such as CK, IK, etc.), and then make multiple SD cards Cards have the same Ks, resulting in poor security of the GBA shared key

Method used

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  • Method for realizing GBA secret key and pluggable equipment of terminal
  • Method for realizing GBA secret key and pluggable equipment of terminal
  • Method for realizing GBA secret key and pluggable equipment of terminal

Examples

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Embodiment Construction

[0036] In the embodiment of the present invention, it is necessary to configure the shared key Km in the pluggable device of the UE and the BSF device in advance, and improve the Ks or / and RES generation algorithm in the UE and BSF device, so that the UE side and the network side A unified algorithm is used to generate Ks or / and RES, and the shared Km and the random number generated by the UE pluggable device are used when generating Ks or / and RES.

[0037] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] see image 3 , a schematic flow chart of the GBA initialization stage of the 3G network provided by the embodiment of the present invention, the flow includes:

[0039] In step 301, the UE client sends a GBA registration request (Bootstrapping_Register_REQ) message to the BSF, which carries a user identifier (such as IMPI).

[0040]In step 302, the BSF returns a GBA registration response (Bootstra...

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Abstract

The invention discloses a method for realizing a GBA key and a terminal pluggable device. In the method, a first shared key is configured on the pluggable device of the user terminal and the BSF device. When the user terminal requests the BSF device After starting the GBA key process, after the user terminal passes the authentication of the BSF device, it sends the generated authentication information and the random number generated by the pluggable device to the BSF device; the BSF device passes the authentication of the user terminal based on the authentication information Then, according to the first shared key configured on it and the received random number, the GBA key material Ks is generated in the manner agreed with the user terminal; the pluggable device of the user terminal is configured according to the first shared key configured on it. The secret key and the generated random number are generated by the method agreed with the BSF device to generate Ks; the BSF device and the pluggable device of the user terminal generate the GBA shared key according to the generated Ks respectively.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for realizing the GBA key and a terminal pluggable device for realizing the GBA key. Background technique [0002] With the development of data services, both operators and users need a reliable authentication mechanism to ensure legal service use and correct billing. Especially in 3G (third generation mobile communication network) services, many applications require two-way authentication between the terminal (such as UE) and the application server, such as mobile phone 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 flow needs to be scrambled or encrypted, confidential communication is required between the terminal and the service system. However, if many businesses use their own independent certifications, it will result in repeated equipment re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/12H04L12/58H04W12/0471H04W12/069
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