Method and device for permanently closing sim card

A permanent, card-locked technology, applied in the field of permanently remote closing the SIM card, can solve the problem of easy leakage of SIM card data and achieve the effect of ensuring security

Active Publication Date: 2021-05-04
CHENGDU TD TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for permanently remotely closing the SIM card to overcome the technical problem in the prior art that the data on the SIM card is easily leaked after the terminal is lost

Method used

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  • Method and device for permanently closing sim card
  • Method and device for permanently closing sim card
  • Method and device for permanently closing sim card

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Embodiment Construction

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0057] figure 1 The network architecture diagram of the permanent remote deactivation SIM card provided by the embodiment of the present invention. see figure 1 In the present invention, the process of permanently remotely closing the SIM card is completed by the server 11 and the first terminal 12 together. In the process of permanently closin...

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Abstract

The invention provides a method and a device for permanently closing a SIM card remotely. The method for permanently remotely closing the SIM of the present invention includes: the server obtains a permanent remote closing request; the server sends a permanent remote closing command to the first terminal; the first terminal generates a personal identification password PIN code, and checks the PIN code, and the PIN code After the verification is completed, repeat the process of generating a PIN code and verifying the PIN code until the number of verification failures reaches N times, so that the SIM card is locked; the first terminal generates a specific unlock key PUK code, and checks the PUK code Carry out verification, after the PUK code verification is completed, repeat the process of generating the PUK code and verifying the PUK code until the number of verification failures reaches M times, so that the SIM card is locked. The method and device for permanently remotely closing the SIM provided by the present invention can remotely lock the SIM card, so that the user's data is not leaked and the security of the user's data is guaranteed.

Description

technical field [0001] The embodiment of the present invention relates to communication engineering technology, and in particular to a method and device for permanently remotely closing a SIM card. Background technique [0002] The subscriber identity module (Subscriber Identity Module, referred to as SIM card) is used for the user's identification, and stores the terminal user's information, the encrypted key, the terminal user's phone book, photos and other contents. [0003] When the terminal is lost, in order to ensure that the data of the terminal user stored on the terminal is not leaked, the SIN card needs to be locked. If the terminal user has set the PIN code of the SIM card on the terminal, then the holder of the existing terminal needs to enter the personal identification code (Personal Identification Number, PIN code for short) of the SIM card when turning on the terminal. After entering the SIM card code, the SIM card will be locked. At this time, the terminal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W8/18
CPCH04L63/0853H04W8/183
Inventor 邓时颖郭岩海刘海君
Owner CHENGDU TD TECH LTD
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