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Net locking method and system

A network-locking, one-pair technology, applied in network data management, electrical components, security devices, etc., can solve the problem of inability to dynamically modify locking parameters, and achieve the effect of reducing operating costs and enhancing security.

Active Publication Date: 2009-09-16
ZTE CORP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problem that the traditional network locking method cannot dynamically modify the locking parameters and can only recall the terminal or issue a new terminal to the user. The present invention provides a network locking method and system that supports Network SMS modifies the network lock parameters, which reduces the operator's operating costs and enhances the security of the lock network

Method used

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Embodiment Construction

[0030] The following describes in detail the technical solutions of the network locking method and system of the present invention in conjunction with the accompanying drawings and specific embodiments:

[0031] figure 1 It is a flow chart of the network locking method of the present invention, and the following are the concrete steps of locking the network:

[0032] Step 1: The network side uses a private key and an asymmetric encryption algorithm to encrypt the plaintext containing the network parameters and the network lock flag to generate a ciphertext, and sends the ciphertext to the terminal through an encrypted message;

[0033] The plaintext M includes: a network parameter P and a network lock flag F,

[0034] The network parameter P is a collection of some network parameters, which includes P1, P2, P3, ... PN, and common network parameters are MCC (Mobile Country Code), MNC (Mobile Network Code), and MIN2 (Mobile Station Identification);

[0035] The network lock fl...

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Abstract

The invention discloses a net locking method and system. The method comprises: the network side processes the encryption for the network parameter to generate the cryptograph and sends the cryptograph to the terminal via the short message; the terminal stores the cryptograph and decrypts the cryptograph to obtain the plaintext; the terminal compares the network parameter of the plaintext to the terminal parameter; if the network is different from the terminal parameter, the terminal net locking fails; if the network is same as the terminal parameter the terminal net locking is successful. Thesystem comprises a cryptograph generating module, a short message sending module, a terminal memory module, a terminal decrypting module and a terminal judging module. the invention amends the net-locking parameter via the network short message to reduce the operating cost of the operator and strengthen the security of the net locking.

Description

technical field [0001] The present invention relates to a network locking method and system for a wireless terminal, in particular to a network locking method and system for a wireless terminal in a wireless communication network. Background technique [0002] The traditional network locking method is to fix the network locking parameters in the terminal when the terminal is produced. However, when the operator wants to change the network locking parameters of the terminal, he can only recall the terminal or issue a new terminal to the user. increases the operator's cost. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the problem that the traditional network locking method cannot dynamically modify the locking parameters and can only recall the terminal or issue a new terminal to the user. The present invention provides a network locking method and system that supports The network SMS modifies the parameters o...

Claims

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Application Information

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IPC IPC(8): H04W4/12H04W8/24H04W12/02H04W12/08H04W12/033
Inventor 王延平
Owner ZTE CORP
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