WO2011009315A1

WO2011009315A1 - Method for locking user number by wireless terminal, unlocking method and device thereof

Info

Publication number: WO2011009315A1
Application number: PCT/CN2010/072017
Authority: WO
Inventors: 王科平; 车忠辉; 宋欣; 郑宏涛; 胡乐申; 段明艳
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-07-21
Filing date: 2010-04-21
Publication date: 2011-01-27
Also published as: CN101616401B; CN101616401A

Abstract

A method for locking a user terminal by a wireless terminal device, unlocking method and device thereof are provided. The locking method includes reading the international mobile equipment identity (IMEI) of the wireless terminal device and the pre-assigned user number of the wireless terminal device stored in the current inserted subscriber identity module(SIM) card; calculating a first map value between the IMEI and the user number; reading the international mobile subscriber identity (IMSI) in the SIM, and calculating a second map value between the user number and the IMSI; comparing the calculated first map value and the second map value with the pre-stored map value of the IMEI and the user number and the map value of the IMSI and the user number in the wireless terminal respectively; allowing the wireless terminal device to be used when the results of the comparison are consistent. The method for locking the user number by the wireless terminal device, unlocking method and device can bind the wireless terminal with the user number, and have high security and facility.

Description

Method, unlocking method and device for locking user number of wireless terminal

The present invention relates to the field of communication security, and in particular, to a method, an unlocking method, and a device for implementing a wireless terminal device to lock a user number. Background technique

With the popularity of 3G networks around the world and the intensification of competition among operators, wireless terminal devices are more customized by operators. For the needs of operators and users, the wireless terminals are considered. The binding limit feature of the device is especially important.

Typical wireless terminal devices include wireless USB MODEMs, wireless data cards, mobile phones, and the like. In order to implement the binding restrictions on the use of wireless terminal devices, the following methods are generally used: In the manner of locking the network, the mobile country code (Mobile Country Code, MCC) and the mobile network code (Mobile Network Code) are bound using the wireless terminal device. The following cartridge is called MNC. The wireless terminal device has a one-to-many relationship with the SIM card. Even if the user loses the wireless terminal device, the wireless terminal device can cooperate with other SIM cards in the network, and the security is obviously not good. To guarantee.

In order to limit the scope of use of the wireless terminal device, there is also a method of binding the user cell (CELL ID) by the wireless terminal device. This method limits the scope of use of the terminal, and because the binding range is small, the advantage of mobility is lost. Inconvenience to the user. There is also a method of interlocking the machine card, and writing the international mobile device identity (IMEI) number of the device in the SIM card to implement the corresponding relationship between the wireless terminal device and the SIM card, but The lock card mechanism is easy to crack. If the user changes the SIM card, the wireless terminal device must re-lock the operation or it can no longer be used.

In addition, the method of locking the network lock card is performed by the operator to lock all the wireless terminals one by one before the wireless terminal is sold, and the unlocking code and the key, the key and the wireless terminal device are stored. The unlocking code and the wireless terminal device are corresponding relationships, not only the lock network process is cumbersome, but also the security of key storage is not high, and it is easy to leak.

The above method or the use method is cumbersome, inconvenient, or has the problem that the security is not easy to crack. Summary of the invention

The technical problem to be solved by the embodiments of the present invention is as follows: The embodiment of the present invention provides a locking method, an unlocking method, and a device thereof for a user terminal device with high security and convenientness.

In order to solve the above technical problem, the technical solution of the present invention is implemented as follows:

A method for implementing a wireless terminal device to lock a subscriber number includes:

Reading an IMEI of the wireless terminal device, and a user number pre-assigned to the wireless terminal device stored in the currently inserted SIM card; calculating a first mapping value between the two;

Reading an International Mobile Subscribe Identity (IMSI) of the SIM card, and calculating a second mapping value between the user number and an IMSI of the SIM card;

And comparing the calculated first mapping value and the second mapping value with the mapping value of the IMEI and the user number stored in advance by the wireless terminal device, and the mapping values of the IMSI and the user number, respectively;

When the results of the comparison are the same, the wireless terminal device is allowed to be used.

The method of calculating the first mapping value and the second mapping value is: calculating a first mapping value and a second mapping value by using a preset hash algorithm.

Before reading the IMEI of the wireless terminal device and the user number in the SIM card, the method further includes: determining whether the step of storing the encrypted file system EFS file in the wireless terminal device, the mapping value with the IMSI of the SIM card, and the SIM card IMSI;

When the determination result is no, it is determined that the wireless terminal device is not locked with the user number; The line terminal device locks with the user number, generates an EFS file and stores it, and allows the wireless terminal device to be used;

When the result of the determination is YES, it is determined that the wireless terminal device has been locked with the subscriber number, and the step of reading the subscriber number in the IMEI and SIM card of the wireless terminal device is turned.

The locking the wireless terminal device and the user number to generate the EFS file includes: reading the user number pre-assigned to the wireless terminal device and the IMEI of the wireless terminal device stored in the currently inserted SIM card, according to the preset Calculating a mapping value of the user number and the IMEI, and storing the mapping value in a predefined first flag file;

Reading the IMSI of the currently inserted SIM card, calculating a mapping value of the user number and the IMSI of the SIM card according to a preset hash algorithm, and storing the mapping value of the IMSI in a predefined second flag file; recording the current insertion The IMSI of the SIM card is stored in a predefined third flag file; the first flag file, the second flag file, and the third flag file are set to read-only and non-deletable states.

When the first mapping value is inconsistent with the pre-stored mapping value of the IMEI and the user number, the wireless terminal device is prohibited from being used;

When the second mapping value is different from the pre-stored mapping value of the IMSI and the user number, the IMSI in the EFS file stored by the wireless terminal device is used to initiate a registration request to the network to which the wireless terminal device belongs;

If the network to which the wireless terminal device belongs refuses to register, and the reason for the rejection is that the IMSI is not in the home location register, replacing the IMSI in the third flag file of the EFS file with the IMSI of the currently inserted SIM card; The first mapping value replaces the mapping value of the IMEI and the user number in the first flag file of the EFS file; and the mapping value of the IMSI and the user number in the second flag file of the EFS file is replaced by using the second mapping value, And allowing the wireless terminal device to be used;

If the network to which the wireless terminal device belongs is accepted for registration, or the reason for refusing to register is not the If the IMSI is not in the home location register, the wireless terminal device is prohibited from being used. The allowing the wireless terminal device to be used includes:

Adding a revision number indicating the normal use after the descriptor of the predefined port mapped by the wireless terminal device, informing the user interface of the wireless terminal device that the wireless terminal device is allowed to be used; the prohibiting the wireless terminal device being used includes:

A revision number indicating the prohibition of use is added after the descriptor of the serial port product identifier and the vendor identifier mapped by the wireless terminal device, thereby informing the user interface of the wireless terminal device that the user terminal is forbidden to use, and closing each port of the wireless terminal device.

The preset hash algorithm is an MD5 hash algorithm.

A method for unlocking a wireless terminal device includes:

Obtaining an authorized license LICENCE file carrying the user number according to the user number locked by the wireless terminal device;

Reading the user number in the currently inserted SIM card and comparing the user number with the user number in the LICENCE file;

When the two are consistent, deleting the mapping value of the IMEI and the user number pre-stored by the wireless terminal device, the mapping value of the IMSI and the user number, and the IMSI;

When the two are inconsistent, the unlock is denied.

A device for implementing a wireless terminal device to lock a user number, comprising:

a reading unit, configured to read an IMEI of the wireless terminal device, a user number pre-assigned to the wireless terminal device stored in the currently inserted SIM card, and an IMSI of the SIM card;

a calculating unit, configured to calculate a first mapping value between the read user number and the IMEI, and calculate a second mapping value between the read user number and the IMSI;

a comparing unit, the first mapping value and the second mapping value calculated by the calculating unit, and a mapping value of the IMEI and the user number pre-stored by the wireless terminal device, and a mapping value between the IMSI and the user number respectively Compare; The use/determination unit is allowed/disabled, and when the comparison result of the comparison unit is consistent, the wireless terminal device is allowed to be used.

The device further includes: a determining unit, a locking/unlocking determining unit, and a locking unit; the determining unit, configured to determine whether an EFS file, a number and a mapping value of the IMSI of the SIM card are pre-stored in the wireless terminal device Said IMSI of the SIM card;

The lock/unlock determination unit is configured to: when the determination result of the determining unit is negative, determine that the wireless terminal device is not locked with the user number; when the determination result of the determining unit is yes, notify the The reading unit performs a reading operation; locks the wireless terminal device with the user number, generates an EFS file, and stores the file;

The permission/inhibition use determining unit is further configured to allow the wireless terminal device to be used after the locking unit locks the wireless terminal device with the user number.

The locking unit specifically includes:

a first generating subunit, configured to read a user number pre-assigned to the wireless terminal device and an IMEI of the wireless terminal device stored in the currently inserted SIM card, and calculate the user number according to a preset hash algorithm And the mapping value of the IMEI, and stored in a predefined first flag file;

a second generation subunit, configured to read an IMSI of the currently inserted SIM card, calculate a mapping value of the user number and the IMSI according to a preset hash algorithm, and store the second predefined value In the logo file;

a third generation subunit, configured to record an IMSI of the currently inserted SIM card, and store the IMSI in a predefined third flag file;

The setting subunit is configured to set the first flag file, the second flag file, and the third flag file to be read-only and non-deletable. The permission/inhibition use determining unit is further configured to: when the first mapping value is inconsistent with the pre-stored mapping value of the IMEI and the user number, prohibit the wireless terminal device from being used;

And when the second mapping value is different from the pre-stored mapping value of the IMSI and the user number, using the IMSI in the EFS file stored by the wireless terminal device to initiate a registration request to the network to which the wireless terminal device belongs;

And, if the network to which the wireless terminal device belongs refuses to register, and the reason for the rejection is that the IMSI is not in the home location register, replacing the IMSI in the third flag file of the EFS file with the IMSI of the currently inserted SIM card; The first mapping value replaces a mapping value of an IMEI and a user number in the first flag file of the EFS file; and replacing the mapping between the IMSI and the user number in the second flag file of the EFS file by using the second mapping value Value and allow the wireless terminal device to be used;

The wireless terminal device is prohibited from being used if the network to which the wireless terminal device belongs accepts registration, or if the reason for refusal to register is not that the IMSI is not in the home location register.

A wireless terminal device unlocking device includes:

An obtaining unit, configured to obtain an authorized license LICENCE file carrying the user number according to the user number locked by the wireless terminal device;

a reading unit, configured to read a user number in the currently inserted SIM card; the numbers are compared;

Unlocking/rejecting the unlocking unit, when the comparison result of the comparing unit is consistent, the mapping value of the IMEI and the user number pre-stored by the wireless terminal device, and the mapping value of the IMSI and the user number of the currently inserted SIM card are deleted. And the IMSI; otherwise, the unlock is denied.

Advantages of the embodiments of the present invention include: a method and a device, the IMEI of the wireless terminal device and the user number in the currently inserted SIM card The first mapping value between the first mapping value and the mapping value of the IMEI and the user number pre-stored by the wireless terminal device, and the second mapping value between the IMSI and the user number of the currently inserted SIM card are stored with the wireless terminal device The mapping between the IMSI and the subscriber number is compared, and the wireless terminal device is allowed to be used only when the comparison results are consistent. The method, the unlocking method and the device for locking the user number of the wireless terminal device provided by the embodiment of the present invention establish a binding relationship between the wireless terminal device and the user number, and even if the user replaces the SIM card, the user number can be kept normal even if the user number is kept unchanged. With this wireless terminal device, the implementation flexibility is strong. And because the locking process is performed in the process of the user using the SIM card, the operator in the prior art is prevented from locking each wireless terminal device one by one before the wireless terminal device is sold, and the entire process does not need to use the secret. Key, so there is no problem of leaking and confidentiality that may result from the key custodian and distribution process.

The unlocking method provided by the embodiment of the present invention can be unlocked by verifying the user number locked by the wireless terminal device, deleting the mapping value of the IMEI and the user number stored by the wireless terminal device, the mapping value of the IMSI and the user number, and the IMSI. The unlocking process is also very convenient. The method, the unlocking method and the device are encrypted by an irreversible hash algorithm, and the cracking is difficult and the security is higher. BRIEF DESCRIPTION OF THE DRAWINGS

2 is a flowchart of a method for unlocking a wireless terminal device according to an embodiment of the present invention; FIG. 3 is a schematic structural diagram of an apparatus for implementing a wireless terminal device to lock a user number according to an embodiment of the present invention;

4 is a schematic structural diagram of a locking unit according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an unlocking apparatus of a wireless terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific implementation manner of a method and apparatus for implementing a wireless terminal device locking user number provided by the present invention will be described in detail below with reference to the accompanying drawings.

A method for implementing a method for locking a subscriber number of a wireless terminal device according to an embodiment of the present invention is described in detail.

As shown in FIG. 1 , a method for implementing a wireless terminal device to lock a user number is provided in the embodiment of the present invention. Before the wireless terminal device is powered on and enters an initialization state, the following steps are performed:

5101. Determine whether the wireless terminal device inserts the SIM card. If yes, execute S102. If no, go to step S112.

5102. Determine whether the inserted SIM card is a SIM card for testing. If yes, go to step S111; otherwise, continue to step S103.

This step S102 is an optional step. The step S102 is set for the testing needs of the SIM card. The SIM card may be tested before or after the sale, and the MCC and the MNC of the SIM card used in the test and the users in the network may be tested. Differently used SIM cards are different. In this step, the SIM card of the SIM card can be judged whether the SIM card belongs to the SIM card for testing, and if it is a SIM card for testing, the wireless terminal device is allowed to be used, and the wireless terminal device subsequently Enter the normal initialization process.

5103. Determine whether an encrypted file system (EFS) file is stored in the wireless terminal device, if yes, determine that the wireless terminal device has locked the user number, and perform step S105; if not, determine the wireless The terminal device does not lock the user number, and step S104 is performed. The value of the shot, the user number and the IMSI of the SIM card and the IMSI of the SIM card.

5104. Lock the wireless terminal device and the user number, generate an EFS file, and store the file. Then, the process proceeds to step S111.

In the embodiment of the present invention, the user number may be allocated by the operator in advance to the SIM card, and specifically, the process of locking and generating the EFS file between the wireless terminal device and the user number is as follows:

Reading the user number pre-assigned to the wireless terminal device and the IMEI of the wireless terminal device stored in the SIM card inserted by the current wireless terminal device, calculating the read user number and reading the IMEI according to a preset hash algorithm. The mapped value between the values is stored in a predefined first flag file;

Reading the IMSI of the SIM card inserted by the current wireless terminal device, calculating the mapped user number and the IMSI mapping value according to a preset hash algorithm, and storing the value in the predefined second flag file;

The IMSI of the currently inserted SIM card is recorded and stored in a predefined third flag file; the first flag file, the second flag file, and the third flag file are set to read-only and non-deletable states.

The first flag file, the second flag file, and the third flag file constitute an EFS file.

Preferably, in the embodiment of the present invention, the preset hash algorithm may adopt an MD5 hash algorithm.

The MD5 hash algorithm is an irreversible encryption algorithm. The encryption process does not require the use of a key. The plaintext is encrypted to form a ciphertext. The encrypted ciphertext cannot be directly decrypted. The decryption process must be encrypted again by inputting the plaintext. When the results are consistent, the plaintext that is input again can be considered as the plaintext after decryption. The irreversible encryption algorithm is difficult to solve and easy to use, and there is no problem of key storage and distribution.

S105, reading an IMEI of the wireless terminal device, and a user number stored in the SIM card currently inserted into the wireless terminal device, and calculating a first mapping value between the two;

The calculation method adopts a preset hash algorithm, and the preset hash algorithm is adopted in step S104. The algorithm is the same.

5106. The first mapping value calculated in step S105 is sent to the EFS stored by the wireless terminal device, and step S107 is performed. Otherwise, step S112 is performed.

If the two are consistent, the user number in the currently inserted SIM card is the same as the user number locked by the wireless terminal device. Otherwise, it is considered that the user number in the currently inserted SIM does not match the wireless terminal device, and the use of the wireless terminal is prohibited.

5107. Read the IMSI of the SIM card, and calculate a second mapping value between the read user number and the IMSI.

The calculation method adopts a preset hash algorithm, and the preset hash algorithm is the same as the algorithm used in step S104.

5108. The second mapping value calculated in step S107 is performed with the wireless terminal device to perform step S111. If the two do not match, the following step S109 is performed.

In this step S108, if the two are consistent, it indicates that the currently inserted SIM card and the then two situations occur, one is that the user legally exchanges the card (the user number has not changed, but the SIM card has been replaced), and One is an illegal card of the same number. In order to further distinguish, it is necessary to perform the following step S109.

5109. Use the IMSI stored in the EFS file to initiate a registration request to the network to which the EFS file is stored. If the registration is successful, go to step S112. If the registration is unsuccessful, and the reason for rejecting the registration is that the IMSI is not in the home location register HLR, go to step S110. And step S111; if the registration is unsuccessful, but the reason for refusal of registration is other than the aforementioned "IMSI is not in the home location register", then the process proceeds to step S112.

If the network refuses to register and the reason for the rejection is that the IMSI is not in the HLR, then the proof The user has legally replaced the SIM card, but the subscriber number in the SIM card is the same as the subscriber number locked by the wireless terminal. If the network accepts registration, or refuses to register for other reasons, it indicates that the SIM card used by the wireless terminal to lock the subscriber number is still valid, and the SIM card currently inserted into the wireless terminal device is an illegal same card.

5110. Replace the IMSI in the third flag file of the EFS file by using the read IMSI of the currently inserted SIM card; replace the mapping value of the IMEI and the user number in the first flag file of the EFS file by using the first mapping value; The second mapping value replaces the mapping value of the IMSI and the user number in the second flag file of the EFS file.

5111. Allow the wireless terminal device to be used.

In this step S111, a revision number indicating normal use is added after the descriptor of the predefined port mapped by the wireless terminal device to inform the wireless terminal device of the user interface (User Interface, UI) that the wireless terminal device is allowed to be use.

5112. The wireless terminal device is prohibited from being used.

Adding a revision number indicating that the use is prohibited after the descriptor of the serial port product identifier (Product ID, PID) and the vendor identifier (Vendor ID, VID) mapped by the wireless terminal device, to notify the UI of the wireless terminal device that the wireless terminal device is prohibited. It is used, and at the same time, the ports of the wireless terminal are also blocked to prevent illegal cracking. In the code method, the irreversible hash algorithm is used for encryption, and there is no key storage and distribution problem, and the cracking is difficult and the security is higher. In addition, when the user uses the legal SIM card for the first time, the binding with the wireless terminal device and the user number is realized, and the operator or the manufacturer does not need to perform the locking operation of the pair of wireless terminal devices one by one. Moreover, in the case that the wireless terminal device is bound to the user number, even if the user legally replaces the SIM card, the binding relationship between the new SIM card and the wireless terminal device can be conveniently realized, and the implementation process is convenient. .

Correspondingly, the embodiment of the present invention further provides a method for unlocking a wireless terminal device, and wirelessly Insert the SIM card into the terminal device. After booting up, as shown in Figure 2, perform the following steps:

5201. Obtain an authorized license LICENCE file carrying the user number according to the user number locked by the wireless terminal device.

In this step S201, the wireless terminal device inputs the user number locked by the wireless terminal according to the prompt of the website by logging in, for example, a website authorized by the operator.

The website server downloads the LICENCE file authorized by the operator and carries the user number according to the input user number.

5202. Read the user number in the SIM card inserted by the current wireless terminal device, and compare it with the user number in the LICENCE file. If the two are the same, go to step S203; otherwise, go to step S204.

5203. Allow the wireless terminal device to unlock, delete the mapping value of the IMEI and the user number, the mapping value of the IMSI and the user number, and the IMSI included in the EFS file stored therein.

5204. Reject the wireless terminal device to be unlocked, and send an alarm message to end the process.

In a specific implementation, the foregoing steps S202 to S204 may be completed by the wireless terminal downloading corresponding unlocking software from a website authorized by the operator.

Based on the same inventive concept, an embodiment of the present invention further provides a device for implementing a wireless terminal device to lock a subscriber number. The method for solving the problem is similar to the foregoing method for implementing a wireless terminal device to lock a subscriber number. The implementation can refer to the implementation of the method, and the repetitions are not repeated.

As shown in FIG. 3, an apparatus for implementing a wireless terminal device to lock a user number according to an embodiment of the present invention includes:

The reading unit 301 is configured to read an IMEI of the wireless terminal device, a user number pre-assigned to the wireless terminal device stored in the currently inserted SIM card, and an IMSI of the SIM card; and a calculating unit 302, configured to calculate and read a first mapping value between the user number and the IMEI, and calculating a second mapping value between the read user number and the IMSI; The comparing unit 303 compares the first mapping value and the second mapping value calculated by the calculating unit 302 with the mapping value of the IMEI and the user number stored in advance by the wireless terminal device, and the mapping values of the IMSI and the user number, respectively;

The permission/inhibition use determining unit 304 allows the wireless terminal device to be used when the comparison results of the comparing unit 303 are all the same.

An apparatus for implementing a wireless terminal device to lock a subscriber number according to an embodiment of the present invention, as shown in FIG. 3, may further include: a determining unit 305, a lock/unlock determining unit 306, and a locking unit 307;

The determining unit 305 is configured to determine whether the mapping value of the encrypted file system number and the SIM card IMSI and the IMSI of the SIM card are pre-stored in the wireless terminal device;

The lock/unlock determination unit 306 is configured to: when the determination result is no, determine that the wireless terminal device is not locked with the user number; when the determination result is yes, the notification reading unit 301 performs a read operation; the terminal device and the user The number is locked, the EFS file is generated and stored;

The allow/disable use determining unit 304 is further configured to allow the wireless terminal device to be used after the locking unit 307 locks the wireless terminal device with the subscriber number.

Further, the locking unit 307, as shown in FIG. 4, specifically includes:

a first generating subunit 3071, configured to read a user number pre-assigned to the wireless terminal device and an IMEI of the wireless terminal device stored in the currently inserted SIM card, and calculate a user number according to a preset hash algorithm. The mapping value of IMEI is stored in a predefined first flag file;

The second generation subunit 3072 is configured to read the IMSI of the currently inserted SIM card, calculate a mapping value of the user number and the IMSI according to a preset hash algorithm, and store the predefined second flag. In the file;

a third generation subunit 3073, configured to record an IMSI of the currently inserted SIM card, and store the IMSI in a predefined third flag file;

The setting subunit 3074 is configured to set the first flag file, the second flag file, and the third flag file to be read-only and non-deletable.

The permission/inhibition use determining unit 304 in the apparatus for implementing the wireless terminal device to lock the user number provided by the embodiment of the present invention is further configured to: when the mapping value between the first mapping value and the pre-stored IMEI and the user number is inconsistent, the wireless is prohibited. The terminal device is used;

And when the second mapping value is inconsistent with the pre-stored mapping value of the IMSI and the user number, using the IMSI in the EFS file stored by the wireless terminal device to initiate a registration request to the network to which the wireless network device belongs; if the network to which it belongs refuses to register, and the reason for the rejection If the IMSI is not in the home location register, replace the IMSI in the third flag file of the EFS file with the read IMSI of the currently inserted SIM card; replace the IMEI in the first flag file of the EFS file with the first mapping value. a mapping value with the user number; and replacing the mapping value of the IMSI and the user number in the second flag file of the EFS file with the second mapping value, and allowing the wireless terminal device to be used;

If the network to which it belongs accepts registration, or if the reason for refusal to register is not that the IMSI is not in the home location register, then the wireless terminal device is prohibited from being used.

According to the wireless terminal device unlocking method provided by the embodiment of the present invention, the embodiment of the present invention further provides a wireless terminal unlocking device, as shown in FIG. 5, including:

The obtaining unit 501 is configured to obtain, according to the user number locked by the wireless terminal device, an authorized license LICENCE file carrying the user number;

The reading unit 502 is configured to read a user number in the currently inserted SIM card;

Unlock/reject the unlocking unit 504, when the comparison result is consistent, delete the wireless terminal setting Pre-stored mapping values of IMEI and user numbers, mapping values of IMSI and user numbers, and IMSI; otherwise, unlocking is denied. And the method, the first mapping value between the IMEI of the wireless terminal device and the user number in the currently inserted SIM card is compared with the mapping value of the IMEI and the user number pre-stored by the wireless terminal device, and the currently inserted The second mapping value between the IMSI and the subscriber number of the SIM card is compared with the mapping value between the IMSI and the subscriber number stored by the wireless terminal device, and the wireless terminal device is allowed to be used only when the comparison results are consistent. The method, the unlocking method and the device for implementing the wireless terminal device locking the user number provided by the embodiment of the present invention establish a binding relationship between the wireless terminal device and the user number, and even if the user replaces the SIM card, the user number can still be maintained The wireless terminal device is normally used, and the implementation is flexible. And because the locking process is performed in the process of the user using the SIM card, the operator in the prior art is prevented from locking each wireless terminal device one by one before the wireless terminal device is sold, and the entire process does not need to use the secret. Key, so there is no problem of leaking and confidentiality that may result from the key custodian and distribution process. The certificate can be unlocked by deleting the mapped value of the stored IMEI and the user number, the mapping value of the IMSI and the user number, and the IMSI. The unlocking process is also very convenient. The method, the unlocking method and the device are encrypted by an irreversible hash algorithm, and the cracking is difficult and the security is higher. The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and the modifications of the invention

Claims

Claim

A method for implementing a wireless terminal device locking user number, comprising: reading an international mobile device identification number IMEI of a wireless terminal device, and pre-assigned to the wireless terminal device stored in the currently inserted SIM card User number; calculating a first mapping value between the two;

Reading an international mobile subscriber identity number IMSI of the SIM card, and calculating a second mapping value between the subscriber number and the IMSI of the SIM card;

2. The method according to claim 1, wherein the calculating the first mapping value and the second mapping value is: calculating a first mapping value and a second mapping value by using a preset hash algorithm.

The method according to claim 1 or 2, wherein before the reading of the user number in the IMEI and the SIM card of the wireless terminal device, the method further comprises: determining whether the encrypted file is pre-stored in the wireless terminal device The step of the system EFS file, the EFS file includes a mapping value of the user number and the wireless terminal device IMEI, a mapping value of the user number and the IMSI of the SIM card, and an IMSI of the SIM card;

When the determination result is no, determining that the wireless terminal device is not locked with the user number; locking the wireless terminal device with the user number, generating an EFS file and storing, allowing the wireless terminal device to be used;

The method of claim 3, wherein the locking the wireless terminal device and the user number to generate an EFS file includes: Reading a user number pre-assigned to the wireless terminal device and an IMEI of the wireless terminal device stored in the currently inserted SIM card, and calculating a mapping value of the user number and the IMEI according to a preset hash algorithm. And stored in a predefined first flag file;

The method according to claim 4, wherein when the first mapping value is inconsistent with the pre-stored mapping value of the IMEI and the user number, the wireless terminal device is prohibited from being used; when the second mapping is When the value is inconsistent with the pre-stored mapping value of the IMSI and the user number, the IMSI in the EFS file stored by the wireless terminal device is used to initiate a registration request to the network to which the wireless terminal device belongs;

If the network to which the wireless terminal device belongs accepts registration, or refuses to register for the reason that the IMSI is not in the home location register, the wireless terminal device is prohibited from being used.

The method of claim 5, wherein the allowing the wireless terminal device to be used comprises:

Adding a revision number indicating a normal use after the descriptor of the predefined port mapped by the wireless terminal device, informing the user interface of the wireless terminal device that the wireless terminal device is allowed to be used; The prohibiting the wireless terminal device is used, including:

The method according to claim 2 or 4, wherein the preset hash algorithm is an MD5 hash algorithm.

A method for unlocking a wireless terminal device, comprising:

When the two are inconsistent, the unlock is denied.

A device for implementing a wireless terminal device to lock a subscriber number, comprising: a reading unit, configured to read an IMEI of the wireless terminal device, and a pre-assigned to the wireless terminal device stored in the currently inserted SIM card a subscriber number and an IMSI of the SIM card;

a comparing unit, the first mapping value and the second mapping value calculated by the calculating unit, and a mapping value of the IMEI and the user number pre-stored by the wireless terminal device, and a mapping value between the IMSI and the user number respectively Compare;

The use/determination unit is allowed/disabled, and when the comparison result of the comparison unit is consistent, the wireless terminal device is allowed to be used.

10. The apparatus according to claim 9, wherein the apparatus further comprises: a judgment sheet Element, locked/unlocked determining unit and locking unit;

The determining unit is configured to determine whether an EFS file, a mapping value of the number and the IMSI of the SIM card, and an IMSI of the SIM card are pre-stored in the wireless terminal device;

The device according to claim 10, wherein the locking unit specifically includes:

The setting subunit is configured to set the first flag file, the second flag file, and the third flag file to be read-only and non-deletable.

12. Apparatus according to any one of claims 9 to 11 wherein said permitting / The determining unit is prohibited, and is further configured to prohibit the wireless terminal device from being used when the first mapping value is inconsistent with the pre-stored mapping value of the IMEI and the user number;

A wireless terminal device unlocking device, comprising: