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Encrypting chip based mobile terminal network-locking method

An encryption chip, mobile terminal technology, applied in the field of mobile communication

Active Publication Date: 2012-05-23
NATIONZ TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] adopts a pure software method, because whether the network locking measures work is completely determined by the software, so it is easy to be cracked

Method used

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  • Encrypting chip based mobile terminal network-locking method
  • Encrypting chip based mobile terminal network-locking method
  • Encrypting chip based mobile terminal network-locking method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, a mobile terminal network locking device based on an encryption chip provided by the present invention includes a mobile terminal controller chip 101, a subscriber identification module 105, and an encryption chip located between the mobile terminal controller chip 101 and the subscriber identification module 105 103 , interface 102 , and interface 104 ; the encryption chip 103 is connected to the interface 102 and the interface 104 respectively, the interface 102 is connected to the mobile terminal controller chip 101 , and the interface 104 is connected to the subscriber identification module 105 . The encryption chip 103 monitors the communication between the mobile terminal controller chip 101 and the subscriber identification module 105 through the interface 102 and the interface 104. The encryp...

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Abstract

A mobile terminal network locking device based on encrypted chip comprises a mobile terminal controller chip, a user recognize module, an encrypted chip between the mobile terminal controller chip and the user recognize module, an interface connecting the mobile terminal controller chip and the encrypted chip, and an interface connecting the user recognize module and the encrypted chip. The encrypted chip can use the interface to detect the communication between the mobile terminal controller chip and the user recognize module, and judges the legality of the communication according to the network locking data stored in a safe data memory of the encrypted chip, to control the on-off of the communication between the interfaces according to the judgment result.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a mobile terminal network locking method based on an encryption chip Background technique [0002] In order to develop customers, mobile operators in various places often carry out promotional activities for mobile terminals such as price subsidies and free mobile phones. In this way, the user can obtain the mobile terminal at a lower than market price or even for free. Some mobile terminal sellers may get low-priced mobile terminals from operators in a certain area and sell them at high prices in other places, thus causing mobile operators to suffer losses. Therefore, operators need to restrict the network access of such mobile terminals, and hope that such mobile terminals can only be used within a network within a certain range. This restriction is commonly known as lock-net. [0003] At present, the commonly used network locking methods are basically implemented by pur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/06H04W88/02H04W12/02H04W12/37H04W12/40
Inventor 彭波余运波
Owner NATIONZ TECH INC