CN114040044A - Method, system and storage medium for dynamically switching and locking SIM card of high-pass platform - Google Patents
Method, system and storage medium for dynamically switching and locking SIM card of high-pass platform Download PDFInfo
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- CN114040044A CN114040044A CN202111149423.6A CN202111149423A CN114040044A CN 114040044 A CN114040044 A CN 114040044A CN 202111149423 A CN202111149423 A CN 202111149423A CN 114040044 A CN114040044 A CN 114040044A
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- 238000004519 manufacturing process Methods 0.000 claims description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
- H04M1/667—Preventing unauthorised calls from a telephone set
- H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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Abstract
The invention provides a method, a system and a storage medium for dynamically switching and locking an SIM card by a high-pass platform, wherein the method comprises the following steps: a locking and clamping setting step: starting a card locking function, integrating unlocking schemes of operators in a mobile phone software version, and setting a flag bit in the mobile phone software version to mark which operator card locking scheme is currently activated; a parameter writing step: developing a PC end tool special for writing mobile phone NV parameters, and writing card locking parameters and parameters provided by an operator into the mobile phone; starting up: after the mobile phone is started, the mobile phone starts the relevant operation of locking the card, then software checks whether the card locking flag bit is set currently, if the flag bit is checked, the version is determined, and a normal starting process is entered. The invention has the beneficial effects that: the method of the invention can realize that one software version can be adapted to two SIM cards to carry out dynamic switching of the card locking function.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method, a system and a storage medium for dynamically switching and locking an SIM card by a high-pass platform.
Background
The requirement that a customer locks two types of SIM cards of operators is met by a mobile phone product of a certain model in one software version, when the mobile phone is started for the first time, if the SIM card of the operator A is inserted, the model can only use the SIM card of the operator A, and if the SIM card of the operator B is inserted during the first start, the model can only use the SIM card of the operator B. If the SIM card is not inserted during the first startup, the mobile phone is also considered to be locked to the network of the operator A by default, if the user of the mobile phone needs to use other types of SIM cards, an unlocking request needs to be initiated to the operator corresponding to the currently locked network, and the other types of SIM cards can be used only after the user agrees with the service end of the operator.
At present, the software version of the mobile phone with the card locking scheme can only be aimed at one operator, and the mobile phone also only has one unlocking scheme. After the network of a certain operator is confirmed to be locked in the factory, the mobile phone can only be unlocked by adopting the unlocking scheme of the operator. However, the current customer needs to require that the card locking scheme of two operators can be adapted by using one mobile phone software version, and the default scheme cannot meet the requirements of the customer.
Disclosure of Invention
The invention provides a method for dynamically switching and locking an SIM card by a high-pass platform, which comprises the following steps of:
a locking and clamping setting step: the card locking function is started, the unlocking schemes of operators are integrated in the software version of the mobile phone, and meanwhile, a flag bit is set in the software version of the mobile phone and used for marking which operator card locking scheme is currently activated.
A parameter writing step: and developing a PC end tool special for writing the NV parameters of the mobile phone, and writing the card locking parameters and the parameters provided by an operator into the mobile phone.
Starting up: after the mobile phone is started, the mobile phone starts the relevant operation of locking the card, then software checks whether a card locking flag bit is set at present, if the flag bit is checked, the version is determined, and a system detects whether the inserted SIM card is matched with the flag bit to determine whether the mobile phone is required to enter a limited mode; if the flag bit is not set, which indicates that the starting is carried out for the first time, the software enters the steps of SIM card detection and flag bit setting, and then different measures are started according to different flag bits.
As a further improvement of the present invention, in the card locking setting step, the configuration of the mobile phone card locking function is further included, that is, the configuration parameters corresponding to the card locking function are opened in the software version development phase, and the related modes are set, and the specific steps are as follows:
step 1: and (5) opening configuration items of the card locking function.
Step 2: a public key is configured.
And step 3: and setting the mobile phone to enter a corresponding mode, wherein the mode is set according to different chips.
As a further improvement of the present invention, in the parameter writing step, the configuration of the mobile phone card locking function is further included, the configuration is to develop a PC-side tool specially writing NV parameters of the mobile phone at the factory production stage, and write specific card locking parameters and parameters provided by an operator into the mobile phone, and the specific steps are as follows:
and 4, step 4: write DEVICE KEY into the handset.
And 5: a policy for locking the card is specified.
Step 6: and adding a white list, namely locking the mobile phone to a specified network according to the requirement of an operator.
As a further improvement of the present invention, the steps of detecting the SIM card and setting the flag bit specifically include:
the first step is as follows: and starting the computer.
The second step is as follows: acquiring the current state of the SIM card; and judging whether the SIM card is inserted, directly setting a flag bit as an operator A if the SIM card cannot be detected, and reading the data of the SIM card through an interface if the SIM card is detected.
The third step: and obtaining the MCC and MNC of the current SIM card from the obtained SIM card data.
The fourth step: and obtaining the operator to which the current SIM card belongs according to the MCC and the MNC, and setting a corresponding zone bit according to the operator to which the current SIM card belongs.
As a further improvement of the present invention, in the fourth step, if the SIM card belongs to the operator a, the flag bit is set to the operator a, and if the SIM card belongs to the operator B, the flag bit is set to the operator B, the SIM cards of the non-operator a and the operator B, and the flag bit is set to the operator a.
As a further improvement of the present invention, the starting of different measures according to the difference of the flag bits specifically includes: if the flag bit is A, the card locking scheme of the operator A is reserved, the mobile phone AP side resends a card locking instruction to the modem side, the instruction only contains the card locking parameters of the operator A, so that the card locking parameters of the operator B are removed, and subsequently, if the SIM card of the operator B is inserted, the mobile phone cannot be normally used and only can enter an emergency service mode, and meanwhile, the unlocking scheme corresponding to the operator B is also forbidden, so that a user cannot unlock the mobile phone by inserting the SIM card of the operator B; if the flag bit is B, the card locking scheme of the operator B is retained, the mobile phone AP side resends a card locking instruction to the modem side, the instruction only contains the card locking parameter of the operator B, which is equivalent to the fact that the card locking parameter of the operator a has been removed, and subsequently if the SIM card of the operator a is inserted, the mobile phone cannot be normally used, and only enters the emergency service mode, and meanwhile, the unlocking scheme corresponding to the operator a is also disabled, so that the user cannot unlock the mobile phone by inserting the SIM card of the operator a.
As a further improvement of the present invention, in the step of starting up, the steps of the related operations of locking the card are as follows:
step Y1: the modem initializes the relevant parameters and enters an infinite loop to wait for the message.
Step Y2: and after receiving the message, selecting a matched 3GPP algorithm according to the configuration file.
Step Y3: and resolving the IMSI of the SIM card.
Step Y4: it is checked whether the MCC/MNC of the current SIM card is in the black list or white list.
Step Y5: and judging a card locking strategy according to the parameters.
Step Y6: an algorithm is selected that matches the lock.
Step Y7: the type of lock is selected.
Step Y8: and running a lock algorithm to obtain a result.
Step Y9: the 3GPP card locking algorithm ends.
Step Y10: and transmitting the card locking result to the upper layer, executing a corresponding strategy according to the received value by the upper layer, and displaying a corresponding interface.
The invention also discloses a system for dynamically switching and locking the SIM card by the high-pass platform, which comprises the following steps: memory, a processor and a computer program stored on the memory, the computer program being configured to carry out the steps of the method of the invention when called by the processor.
The invention also discloses a computer-readable storage medium, in which a computer program is stored, which computer program is configured to carry out the steps of the method of the invention when it is called by a processor.
The invention has the beneficial effects that: the method of the invention can realize that one software version can be adapted to two SIM cards to carry out dynamic switching of the card locking function.
Drawings
FIG. 1 is a general flow chart of the mobile phone of the present invention after being powered on;
FIG. 2 is a flow chart of the configuration of the card locking function of the present invention;
FIG. 3 is a flow chart of the operation of the present invention to lock a card;
FIG. 4 is a flow chart of the present invention for detecting a SIM card and setting a flag bit;
fig. 5 is a flow chart of the operator card locking scheme of the present invention.
Detailed Description
The term of art:
AP: and an application processor CPU in the mobile phone. The operating system, user interface, and applications are all executed on the AP.
A Modem: commonly known as "cat," is a piece of hardware. The mobile phone mainly runs mobile phone radio frequency communication control software and is responsible for sending and receiving data.
The Android application package is an application package file format used by an Android operating system and used for distributing and installing mobile applications and middleware.
MCC, Mobile Country Code, MCC resources are uniformly distributed and managed by International Telecommunication Union (ITU), and the Country to which the Mobile subscriber belongs is uniquely identified, and the number of the countries is 3.
MNC is composed of 2-3 digits, namely Mobile Network Code, Mobile Network number and Mobile communication Network used for identifying the Mobile user to which the Mobile user belongs.
International Mobile Subscriber Identity, is an Identity that is used to distinguish different subscribers in a cellular network and is not repeated in all cellular networks.
ICCID is IC card identification code, namely SIM card number, which is equivalent to the ID card of mobile phone number. The ICCID is a unique identification number of the IC card and is composed of 20 digits in total.
DEVICE _ KEY: and the symmetric key is used for establishing data request and response messages from the mobile phone to the unlocking server, and the mobile phone end and the unlocking server end are stored. And the value of the mobile phone end is written into the mobile phone in the factory stage.
The Control Key is usually a random number provided by an operator and used for locking and unlocking the mobile phone in various card locking schemes.
Public Key and Private Key are a Key pair (i.e. a Public Key and a Private Key) obtained by an algorithm, the Public Key is a Public part of the Key pair, and the Private Key is a non-Public part. The public key is typically used to encrypt session keys, verify digital signatures, or encrypt data that can be decrypted with a corresponding private key. The key pair derived by such an algorithm can be guaranteed to be unique worldwide. When using this key pair, if one of the keys is used to encrypt a piece of data, the other key must be used to decrypt the piece of data.
The invention discloses a method for dynamically switching and locking an SIM card by a high-pass platform, which comprises the following steps of:
a card locking setting step (mobile phone software version development stage): the card locking function is started, and the unlocking schemes of operators are integrated in the mobile phone software version, wherein each unlocking scheme of the operator has an APK and a corresponding operation library. The APK is mainly used for communicating with a server of an operator, a subsequent user needs to operate through the APK when wanting to unlock the mobile phone, and a flag bit is set in a software version of the mobile phone and used for marking the currently activated card locking scheme of the operator; if it is the Flag bit of client A, we denote by Flag A, and client B, we denote by Flag B.
Parameter writing step (factory production stage): developing a PC end tool special for writing mobile phone NV parameters, and writing card locking parameters and parameters provided by an operator into the mobile phone;
boot start step (boot phase): as shown in fig. 1, after the mobile phone is turned on, the mobile phone starts the related operation of locking the card, and then the software checks whether the current card locking flag bit is set, if the flag bit is checked, it indicates that the version is determined, and the system will detect whether the inserted SIM card matches the flag bit to determine whether to let the mobile phone enter the restricted mode; if the flag bit is not set, which indicates that the starting is carried out for the first time, the software enters the steps of SIM card detection and flag bit setting, and then different measures are started according to different flag bits.
If the mobile phone is started for the first time, the software firstly checks whether the SIM card is inserted currently, and the following 4 conditions exist according to the detection result:
1. no SIM card is inserted;
2. the inserted SIM card is a card of a non-customer-specified two operators;
3. the inserted SIM card is the card of the operator A;
4. the inserted SIM card is the card of operator B.
According to different detection results, the following flag bit settings are carried out:
case 1: the software version is specified as the version of carrier a, i.e. the Flag bit is set to Flag a, according to the customer's requirements.
Case 2: because the current mobile phone has locked the SIM cards which can only use the operator a and the operator B, if the SIM cards of other operators are inserted, all the functions of the mobile phone cannot be used normally at this time, and only the emergency mode can be entered.
Cases 3 and 4 are as follows: because the relevant card locking parameters of the SIM cards of the operator a and the operator B are written into the mobile phone in the factory stage, under the condition of starting up for the first time, the two SIM cards are both legal cards, and we perform different operations according to different inserted cards:
1) the SIM card of the operator A is inserted, and the flag bit is set to A.
2) The SIM card of the operator B is inserted, and the flag bit is set to be B.
And then starting different processes according to different flag bits:
if the flag bit is A, the card locking scheme of the operator A is reserved, the mobile phone is locked to the network of the operator A, the SIM card of the non-operator A is inserted subsequently, the emergency service mode can only be entered, the unlocking scheme of the operator B is invalid, and the user cannot unlock the mobile phone through the unlocking scheme of the operator B.
If the flag bit is B, the card locking scheme of the operator B is reserved, the mobile phone is locked to the network of the operator B, and the SIM card inserted into the non-operator B subsequently can only enter an emergency service mode. And the unlocking scheme of the operator A is invalid, and the user can not unlock the mobile phone through the unlocking scheme of the operator A.
And (3) card locking function configuration:
the configuration of the card locking function is in both the mobile phone software version development stage and the factory production stage, the configuration parameters corresponding to the card locking function need to be opened in the mobile phone software version development stage, and relevant modes are set, and the factory stage is mainly to write specific card locking parameters and parameters provided by some operators into the mobile phone.
As shown in fig. 2, in the step of setting the card lock (in the stage of developing the software version of the mobile phone), the configuration of the card lock function of the mobile phone is further included, that is, the configuration parameters corresponding to the card lock function are opened in the stage of developing the software version, and the related modes are set, and the specific steps are as follows:
step 1: and (5) opening configuration items of the card locking function.
Step 2: a public key is configured.
And step 3: and setting the mobile phone to enter a corresponding mode, wherein the mode is set according to different chips.
As shown in fig. 2, in the parameter writing step (factory production stage), the configuration further includes a configuration of a mobile phone card locking function, which is to develop a PC-side tool specially writing NV parameters of a mobile phone in the factory production stage, and write specific card locking parameters and parameters provided by an operator into the mobile phone, and the specific steps are as follows:
and 4, step 4: write DEVICE KEY into the handset.
And 5: a policy for locking the card is specified.
Step 6: and adding a white list, namely locking the mobile phone to a specified network according to the requirement of an operator.
The specific steps of locking the card are shown in fig. 3:
in the step of starting up, the relevant operation of locking the card specifically comprises the following steps:
step Y1: the modem initializes the relevant parameters and enters an infinite loop to wait for the message.
Step Y2: and after receiving the message, selecting a matched 3GPP algorithm according to the configuration file.
Step Y3: and resolving the IMSI of the SIM card.
Step Y4: it is checked whether the MCC/MNC of the current SIM card is in the black list or white list.
Step Y5: and judging a card locking strategy according to the parameters.
Step Y6: an algorithm is selected that matches the lock.
Step Y7: the type of lock is selected.
Step Y8: and running a lock algorithm to obtain a result.
Step Y9: the 3GPP card locking algorithm ends.
Step Y10: and transmitting the card locking result to the upper layer, executing a corresponding strategy according to the received value by the upper layer, and displaying a corresponding interface.
The steps of SIM card detection and flag bit setting are as follows:
the first step is as follows: and starting the computer.
The second step is as follows: acquiring the current state of the SIM card; and judging whether the SIM card is inserted, directly setting a flag bit as an operator A if the SIM card cannot be detected, and reading the data of the SIM card through an interface if the SIM card is detected.
The third step: and obtaining the MCC and MNC of the current SIM card from the obtained SIM card data.
The fourth step: and obtaining the operator to which the current SIM card belongs according to the MCC and the MNC, and setting a corresponding zone bit according to the operator to which the current SIM card belongs.
In the fourth step, if the SIM card belongs to the operator a, the flag is set to the operator a, if the SIM card belongs to the operator B, the flag is set to the operator B, and the flag is set to the SIM cards of the non-operator a and the operator B.
The measures to determine the final operator card locking scheme are as follows, as shown in fig. 4:
if the flag bit is A, the card locking scheme of the operator A is reserved, the mobile phone AP side resends a card locking instruction to the modem side, the instruction only contains the card locking parameters of the operator A, so that the card locking parameters of the operator B are removed, and subsequently, if the SIM card of the operator B is inserted, the mobile phone cannot be normally used and only can enter an emergency service mode, and meanwhile, the unlocking scheme corresponding to the operator B is also forbidden, so that a user cannot unlock the mobile phone by inserting the SIM card of the operator B; if the flag bit is B, the card locking scheme of the operator B is retained, the mobile phone AP side resends a card locking instruction to the modem side, the instruction only contains the card locking parameter of the operator B, which is equivalent to the fact that the card locking parameter of the operator a has been removed, and subsequently if the SIM card of the operator a is inserted, the mobile phone cannot be normally used, and only enters the emergency service mode, and meanwhile, the unlocking scheme corresponding to the operator a is also disabled, so that the user cannot unlock the mobile phone by inserting the SIM card of the operator a.
An unlocking process: the unlocking processes of different operators are different and are related to the business logic of the operators.
The invention also discloses a system for dynamically switching and locking the SIM card by the high-pass platform, which comprises the following steps: memory, a processor and a computer program stored on the memory, the computer program being configured to carry out the steps of the method of the invention when called by the processor.
The invention also discloses a computer-readable storage medium, in which a computer program is stored, which computer program is configured to carry out the steps of the method of the invention when it is called by a processor.
The invention has the beneficial effects that: the method of the invention can realize that one software version can be adapted to two SIM cards to carry out dynamic switching of the card locking function.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (9)
1. A method for dynamically switching and locking an SIM card by a high-pass platform is characterized by comprising the following steps of:
a locking and clamping setting step: starting a card locking function, integrating unlocking schemes of operators in a mobile phone software version, and setting a flag bit in the mobile phone software version to mark which operator card locking scheme is currently activated;
a parameter writing step: developing a PC end tool special for writing mobile phone NV parameters, and writing card locking parameters and parameters provided by an operator into the mobile phone;
starting up: after the mobile phone is started, the mobile phone starts the relevant operation of locking the card, then software checks whether a card locking flag bit is set at present, if the flag bit is checked, the version is determined, and a system detects whether the inserted SIM card is matched with the flag bit to determine whether the mobile phone is required to enter a limited mode; if the flag bit is not set, which indicates that the starting is carried out for the first time, the software enters the steps of SIM card detection and flag bit setting, and then different measures are started according to different flag bits.
2. The method according to claim 1, wherein in the card locking setting step, the configuration of the card locking function of the mobile phone is further included, that is, the configuration parameters corresponding to the card locking function are opened in the software version development stage, and the related modes are set, and the specific steps are as follows:
step 1: opening configuration items of the card locking function;
step 2: configuring a public key;
and step 3: and setting the mobile phone to enter a corresponding mode, wherein the mode is set according to different chips.
3. The method according to claim 2, wherein in the parameter writing step, the method further comprises a configuration of a mobile phone card locking function, the configuration is to develop a PC-side tool specially writing mobile phone NV parameters in a factory production stage, and write specific card locking parameters and operator-provided parameters into the mobile phone, and the specific steps are as follows:
and 4, step 4: writing DEVICE _ KEY into the mobile phone;
and 5: a strategy of card locking is appointed;
step 6: and adding a white list, namely locking the mobile phone to a specified network according to the requirement of an operator.
4. The method according to claim 1, wherein the SIM card detecting and flag bit setting step specifically comprises:
the first step is as follows: starting up;
the second step is as follows: acquiring the current state of the SIM card; judging whether an SIM card is inserted, if the SIM card cannot be detected, directly setting a flag bit as an operator A, and if the SIM card is detected, reading data of the SIM card through an interface;
the third step: obtaining MCC and MNC of the current SIM card from the obtained SIM card data;
the fourth step: and obtaining the operator to which the current SIM card belongs according to the MCC and the MNC, and setting a corresponding zone bit according to the operator to which the current SIM card belongs.
5. The method according to claim 4, wherein in the fourth step, if the SIM card belongs to the operator A, the flag is set to the operator A, and if the SIM card belongs to the operator B, the flag is set to the SIM cards of the operator B, the non-operator A and the operator B, and the flag is set to the operator A.
6. The method of claim 5, wherein initiating different actions according to the flag bit specifically comprises: if the flag bit is A, the card locking scheme of the operator A is reserved, the mobile phone AP side resends a card locking instruction to the modem side, the instruction only contains the card locking parameters of the operator A, so that the card locking parameters of the operator B are removed, and subsequently, if the SIM card of the operator B is inserted, the mobile phone cannot be normally used and only can enter an emergency service mode, and meanwhile, the unlocking scheme corresponding to the operator B is also forbidden, so that a user cannot unlock the mobile phone by inserting the SIM card of the operator B; if the flag bit is B, the card locking scheme of the operator B is retained, the mobile phone AP side resends a card locking instruction to the modem side, the instruction only contains the card locking parameter of the operator B, which is equivalent to the fact that the card locking parameter of the operator a has been removed, and subsequently if the SIM card of the operator a is inserted, the mobile phone cannot be normally used, and only enters the emergency service mode, and meanwhile, the unlocking scheme corresponding to the operator a is also disabled, so that the user cannot unlock the mobile phone by inserting the SIM card of the operator a.
7. The method according to claim 1, wherein in the step of starting up, the operation related to locking the card specifically comprises the following steps:
step Y1: the modem initializes relevant parameters, enters an infinite loop and waits for a message;
step Y2: after receiving the message, selecting a matched 3GPP algorithm according to the configuration file;
step Y3: analyzing the IMSI of the SIM card;
step Y4: checking whether the MCC/MNC of the current SIM card is in a blacklist or a whitelist;
step Y5: judging a card locking strategy according to the parameters;
step Y6: selecting an algorithm of a matching lock;
step Y7: selecting a type of lock;
step Y8: operating a lock algorithm to obtain a result;
step Y9: the 3GPP card locking algorithm is finished;
step Y10: and transmitting the card locking result to the upper layer, executing a corresponding strategy according to the received value by the upper layer, and displaying a corresponding interface.
8. A system for dynamically switching and locking SIM cards by a high-pass platform is characterized by comprising: memory, a processor and a computer program stored on the memory, the computer program being configured to carry out the steps of the method of any one of claims 1 to 7 when invoked by the processor.
9. A computer-readable storage medium characterized by: the computer-readable storage medium stores a computer program configured to, when invoked by a processor, implement the steps of the method of any of claims 1-7.
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