CN106470407B - method and system for locking/unlocking control of SIM card through data short message - Google Patents
method and system for locking/unlocking control of SIM card through data short message Download PDFInfo
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- CN106470407B CN106470407B CN201510510775.8A CN201510510775A CN106470407B CN 106470407 B CN106470407 B CN 106470407B CN 201510510775 A CN201510510775 A CN 201510510775A CN 106470407 B CN106470407 B CN 106470407B
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- sim card
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72463—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions to restrict the functionality of the device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/183—Processing at user equipment or user record carrier
Abstract
the invention relates to a method for controlling locking/unlocking of an SIM card through a data short message, which comprises the following steps: setting a locking/unlocking application in the SIM card, verifying the legality of the data short message after receiving a locking/unlocking data short message instruction sent by a background, and if the instruction is combined with a rule, performing locking/unlocking operation of the application, otherwise, not performing any processing; the SIM card receives an instruction transmitted in a contact or non-contact mode, the SIM card locking judgment module judges whether the current SIM card is in a locking state according to a locking mark storage module in the SIM card, and operation is refused if the current SIM card is in the locking state; otherwise, the operation may continue. The system comprises a card locking/unlocking data short message instruction sending background, an SIM card locking/unlocking application module, an SIM card locking mark storage module, an SIM card locking judgment module and an SIM card locking state STK menu query module. The communication mode adopted by the invention is a data short message mode, so that the safety is high; meanwhile, the data short message uses a symmetric key safety protection mechanism, so that the safety of communication between the SIM card and the background is ensured.
Description
Technical Field
The invention belongs to the technical field of communication technology and mobile payment, in particular to a method and a system for locking and controlling an access channel (a contact channel or a non-contact channel) of an SIM card.
background
With the rapid popularization of mobile payment, new services and applications are continuously emerging, and people begin to use mobile phone mobile payment to replace traditional bank cards, bus cards, access cards, electronic coupons and the like. As an important component in mobile payment technology: SIM (Subscriber Identity Module) cards, in addition to carrying communication applications, carry more and more payment applications.
In a real environment, at present, a SIM card, particularly, a SIM card with a non-contact function, carries many payment applications, such as an electronic wallet, a PBOC, and the like, and scenes of the payment applications are generally performed in a non-contact card swiping manner. These applications provide a more convenient, faster, and safer payment experience for the user than traditional approaches. At present, the mainstream non-contact application adopts an off-line card swiping mode without password protection, so that the condition that the card is maliciously consumed after the card is lost is brought. Furthermore, the business requirements for some specific administrative and user parties are difficult to meet, such as: the user needs to temporarily and remotely close the non-contact card swiping function; the administrator needs to remotely freeze the card swiping function of the risk client, etc.
Disclosure of Invention
In view of the above technical deficiencies, the present invention provides a method and system for locking and controlling access channel of SIM card remotely.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for controlling locking/unlocking of the SIM card through the data short message comprises the following steps:
A card locking/unlocking data short message instruction sending background: generating a data short message instruction representing locking and unlocking according to a pre-stored security key, and sending the data short message instruction to an SIM card locking/unlocking application module in an SIM card;
SIM card locking/unlocking application module: carrying out safety verification on the received data short message instruction, and if the verification fails, not carrying out any operation; if the verification is successful, namely the data short message instruction is legal, operating the SIM card locking mark storage module according to the parameter of the instruction; if the command is an unlocking command, setting the flag value of the SIM card locking flag storage module as 'unlocked'; if the command is a locking command, setting the flag value of the SIM card locking flag storage module as 'locked';
SIM card calibration mark storage module: a flag value indicating the current SIM card lock status is saved.
The method for controlling locking/unlocking of the SIM card through the data short message further comprises the following steps:
SIM card locking judging module: when the SIM card receives the instruction, reading a mark value in a SIM card locking mark storage module, if the mark value is 'locked', refusing to execute the instruction, and returning an error state word; and if the flag value is 'unlocked', allowing the instruction to be executed and sending the instruction to the corresponding application in the SIM card for processing.
The method for controlling locking/unlocking of the SIM card through the data short message further comprises the following steps:
SIM card locking state STK menu inquiry module: when a user inquires the locking state through the STK menu, reading a mark value in a SIM card locking mark storage module; if the flag value is "locked", the return display text indicates that the card is locked; if the flag value is "unlocked," the return display text indicates that the card is functioning properly.
The system for controlling locking/unlocking of the SIM card through the data short message comprises:
a card locking/unlocking data short message instruction sending background: the SIM card locking/unlocking system comprises an SIM card locking/unlocking application module, a data short message instruction and a data short message processing module, wherein the SIM card locking/unlocking application module is used for locking/unlocking the SIM card in the SIM card;
The SIM card locking/unlocking application module carries out security verification on the received locking/unlocking data short message, and does not carry out any operation if the verification fails; if the verification is successful, namely the data short message instruction is legal, operating the SIM card locking mark storage module according to the parameter of the instruction; if the command is an unlocking command, setting the flag value of the SIM card locking flag storage module as 'unlocked'; if the command is a locking command, setting the flag value of the SIM card locking flag storage module as 'locked';
SIM card calibration mark storage module: for storing a flag value indicating the locking state of the current SIM card.
the method for controlling locking/unlocking of the SIM card through the data short message further comprises the following steps:
SIM card locking judging module: the SIM card is used for reading the mark value in the SIM card locking mark storage module when the SIM card receives the instruction, refusing to execute the instruction if the mark value is 'locked', and returning an error state word; and if the flag value is 'unlocked', allowing the instruction to be executed and sending the instruction to the corresponding application in the SIM card for processing.
the method for controlling locking/unlocking of the SIM card through the data short message further comprises the following steps:
SIM card locking state STK menu inquiry module: the SIM card locking mark storage module is used for storing the locking state of the SIM card; if the flag value is "locked", the return display text indicates that the card is locked; if the flag value is "unlocked," the return display text indicates that the card is functioning properly.
the invention has the following beneficial effects and advantages:
1. The SIM card non-contact locking operation of the invention can be directly operated remotely, a user directly dials a customer service hotline application or a manager can directly use a data short message mode to achieve the locking and unlocking operation, and a cardholder does not feel at all in the operation process.
2. The adopted communication mode is a data short message mode, the general SIM card providers are GSM network operators, the short message channel coverage is the widest, the cost is low, the data short messages cannot be directly read, and the safety is high, so that the method and the system can be well served. Meanwhile, the data short message uses a symmetric key safety protection mechanism, so that the safety of communication between the SIM card and the background is ensured.
3. on the basis of a standard data short message safety protocol, safety MAC check operation is added to the content of the data short message, and the safety is further ensured.
And 4, the locking state of the SIM card can be directly displayed through an STK menu of the SIM card, and the method is friendly and convenient.
Drawings
FIG. 1 is a block system architecture diagram of the present invention;
FIG. 2 is a complete flow chart of the locking/unlocking of the present invention;
FIG. 3 is a flowchart of a non-contact instruction processing according to the present invention;
FIG. 4 is a flowchart illustrating a complete SIM card locking status STK menu query process according to the present invention;
the SIM card locking/unlocking system comprises a locking/unlocking data short message instruction sending background, an SIM card locking/unlocking application module, an SIM card locking mark storage module, an SIM card locking judgment module and an SIM card locking state STK menu query module, wherein the SIM card locking/unlocking data short message instruction sending background is used for 1, the SIM card locking/unlocking application module is used for 3, the SIM card locking mark storage module is used for 4, the SIM card locking judgment module is used.
Detailed Description
the present invention will be described in further detail with reference to examples.
as shown in fig. 1 and 2, the method of the present invention comprises: setting a locking/unlocking application in the SIM card; the application receives a locking/unlocking data short message instruction sent by the background; the SIM card locking/unlocking application verifies the validity of the data short message, if the command is combined, the locking/unlocking operation of the application is carried out, and the command is not processed; the SIM card receives an instruction transmitted in a contact or non-contact mode, the SIM card locking judgment module judges whether the current SIM card is in a locking state according to a locking mark storage module in the SIM card, and if the current SIM card is in the locking state, the operation is refused, so that a controlled application in the SIM card cannot be accessed; otherwise, the operation may continue. The user can check the current state of the card through the STK menu of the SIM card, if the card is locked, the card is displayed to be locked, otherwise, the card state is displayed to be normal.
A method for controlling locking/unlocking of a SIM card through a data short message comprises the following steps:
When the SIM card receives an instruction transmitted in a contact or non-contact mode, refusing operation when the card is in a card locking state; and if the card is in the unlocked state, the card normally operates.
And when the SIM card receives the background locking and unlocking data short messages, the SIM card locks/unlocks the application verification data, whether the short message verification is legal or not is judged, and if yes, the SIM card locks/unlocks the application verification data.
the user can check the current state of the card by entering the STK menu, and when the card is locked, the card locking is displayed, otherwise, the card normal is displayed.
When the SIM card receives an incoming command, whether the card is in a locked state is judged, and the method comprises the following steps:
the SIM card locking judgment module 4 reads the locking mark value in the SIM card locking mark storage module 3: if the flag value is 'locked', refusing to execute the instruction and returning an error status word; if the flag value is "unlocked", normal execution of the instruction is allowed.
The SIM card receives a locking/unlocking data short message instruction sent by the background, and the SIM card locking/unlocking application module 2 performs locking/unlocking operation, which comprises the following steps:
The SIM card locking/unlocking application module 2 carries out security verification on the received locking/unlocking data short message, and does not carry out any operation if the verification fails; if the verification is successful, namely the data short message instruction is legal, operating the SIM card locking mark storage module according to the parameter of the instruction; if the command is an unlocking command, setting the flag value of the SIM card locking flag storage module as 'unlocked'; if the command is locked, the storage module mark value of the SIM card locking mark is set as 'locked'.
The user inquires the current state of the card through the STK menu of the SIM card, and the method comprises the following steps:
the user clicks the STK menu item, the SIM card state query module queries the mark value in the SIM card locking mark storage module: if the card is in the locking state, displaying that the card is locked; if the card is in the unlocking state, the card is displayed in a normal state.
A locking/unlocking control system for a SIM card through a data short message comprises the following modules:
SIM card locking/unlocking application module 2: and the SIM card is responsible for carrying out safety verification on the received data short message, analyzing the data instruction and modifying the content of the SIM card lock calibration mark storage module 3 according to the content of the data instruction, namely, changing the value of the card state mark into locking or unlocking. The SIM card locking/unlocking application stores a short message address of a background for sending a legal card locking/unlocking data short message instruction and a safety key required by safety verification.
A card locking/unlocking data short message instruction sending background 1: the SIM card is mainly responsible for generating a data short message instruction by using the stored security key and sending the data short message instruction to the SIM card.
SIM card calibration flag storage module 3: and the SIM card locking state flag value is stored, and the flag value is used for indicating whether the current SIM card is in a locking state or not.
SIM card locking judging module 4: the method is mainly responsible for accessing a SIM card locking mark storage module when the SIM card receives an incoming instruction (the incoming instruction mode comprises a contact mode or a non-contact mode), judging whether the current SIM card is in a locking state, and performing instruction rejection operation when the SIM card is in the locking state.
SIM card locking state STK menu query module 5: and the STK is responsible for providing a prompt message that whether the current card is in the locked state or not in the STK menu, and when the SIM card is in the locked state, the STK pops up the prompt message for prompting that the current card is in the locked state, otherwise, the STK pops up the prompt for prompting that the card state is normal.
The SIM card is provided with an SIM card locking/unlocking application module 2, an SIM card locking mark storage module 3, an SIM card locking judgment module 4 and an SIM card locking state STK menu query module 5.
And storing the network address of the card locking/unlocking data short message instruction sending background 1 and the dispersed symmetric key in the SIM card locking/unlocking application module 2.
The SIM card lock state STK menu query module 5 registers the STK menu, i.e. configures the entry of the menu for STK lock state query.
The following describes a complete locking/unlocking process:
1: a user requests a management platform to lock/unlock a card in a mode of a customer service hotline or a website, the management platform sends a background 1 through a card locking/unlocking data short message instruction to generate a card locking/unlocking data short message instruction, and a symmetric key is used for encrypting and protecting the short message. And then sending the short message to the SIM card corresponding to the mobile phone number of the user.
2: after the SIM card receives the data short message, the SIM card locking/unlocking application module 2 firstly (namely, carries out security check) judges whether the source address of the short message is consistent with the short message address of a locking/unlocking data short message instruction sending background 1 stored in the card, and if not, the short message is discarded; if the two short message data are consistent, the integrity and the legality of the short message data are verified by using the stored symmetric key, and the short message data are discarded if not required; if the short message is legal and complete, analyzing the instruction of the data short message, if the short message is a card locking instruction, modifying the mark value in the SIM card locking mark storage module 3 to be 'locked', and if the short message is an unlocking instruction, modifying the mark value in the SIM card locking mark storage module 3 to be 'unlocked'.
as shown in fig. 3, a complete instruction processing flow is described below by taking a contactless application (e.g., an electronic wallet, a PBOC application) access flow in the SIM card as an example:
1, SIM card receives the incoming command;
2, the SIM card locking judgment module 4 reads the mark value in the SIM card locking mark storage module 3;
If the flag value is 'locked', refusing to process the instruction, directly returning to an error state, and prompting an instruction sender to 'apply no exist' state word;
And 4, if the flag value is 'unlocked', allowing the instruction processing and delivering the instruction to the corresponding application in the SIM card for processing.
As shown in fig. 4, a complete SIM card lock status STK menu query process is described below.
1: the user enters the STK menu and selects the non-contact locking state query menu option of the SIM card;
2, the SIM card locking state STK menu query module 5 reads the mark value in the SIM card locking mark storage module 3;
If the flag value is "locked", returning a display text: "the card has been locked".
and 4, if the flag value is 'unlocked', returning a display text: the card functions normally.
in the invention:
1: the SIM card active command corresponds to the specification ETSI TS 101267;
2: and (3) digital short message coding specification: ETSI TS 100901.
Locking/unlocking the digital short message accords with the digital short message coding standard, and on the basis, a data short message instruction sent to the card by the background is added into a safety encryption mechanism, wherein the encryption algorithm is explained as follows:
3.1: setting the plain text of the data short message as DE 1;
3.2: setting the background symmetric KEY as KEY 1;
3.3: generating a random number R1 of 4 bytes in the background for each piece of short message data;
3.4: the secret key of the process of encrypting the short message number is SKEY;
3.5: the mode of SKEY generation is as follows:
3.5.1: complementing the random number by 0x00 of four bytes, R2 is obtained
Namely: r2 ═ R1+00000000
3.5.2 inverting R2 to obtain R3
Namely: r3 ═ R2
3.5.3: the KEY2 is obtained by performing 3DES ECB encryption on R2+ R3 by using KEY1
namely: KEY2 ═ 3DES ECB (R2+ R3)
3.6: filling up the plaintext of the data short message to achieve the multiple length of 8 data;
3.7: the filling method comprises the following steps:
3.7.1 addition of 0X80 to DE1 to give DE2
DE2 ═ DE1+0x80
3.7.2 adding a variable length of 0x00 after DE2 to make it reach 8 times length,
The short message DE3 after completion is obtained
3.8 3DES ECB encryption of DE3 Using KEY2 to obtain DE4 while using
The algorithm of 3DES CBC calculates the MAC value of DE4
namely DE4 ═ 3DES ECB (DE3)
MAC＝3DES CBC(DE4)
3.9, assembling the final short message data EN1 as follows:
EN1＝DE4+R1+MAC
4, the complete data short message consists of DE4+ R1+ MAC; the legal short message is the check short message with correct MAC. Namely, if the data short message format is DE4+ R1+ MAC, the data short message is complete; and if the MAC of the data short message is correct, the data short message is a legal data short message.
Claims (2)
1. the method for controlling locking/unlocking of the SIM card through the data short message is characterized by comprising the following steps:
A card locking/unlocking data short message instruction sending background (1): generating a data short message instruction representing locking and unlocking according to a pre-stored security key, and sending the data short message instruction to an SIM card locking/unlocking application module (2) in the SIM card;
SIM card locking/unlocking application module (2): carrying out safety verification on the received data short message instruction, and if the verification fails, not carrying out any operation; if the verification is successful, namely the data short message instruction is legal, operating the SIM card locking mark storage module (3) according to the parameter of the instruction; if the command is an unlocking command, setting the flag value of the SIM card locking flag storage module (3) as 'unlocked'; if the command is a locking command, setting the mark value of the SIM card locking mark storage module (3) as 'locking';
The complete data short message consists of DE4+ R1+ MAC; the legal short message is the check short message with correct MAC, namely if the data short message format is DE4+ R1+ MAC, the data short message is complete; if the MAC of the data short message is correct, the data short message is a legal data short message;
Wherein: r1 represents the generation of a 4-byte random number; DE4 denotes the value obtained by the encryption algorithm; MAC represents that DE4 is calculated to obtain a value through the algorithm of 3DES CBC;
SIM card calibration flag storage module (3): saving a flag value representing the locking state of the current SIM card;
further comprising the steps of:
SIM card locking judgment module (4): when the SIM card receives the instruction, reading a mark value in a SIM card locking mark storage module (3), if the mark value is 'locked', refusing to execute the instruction, and returning an error state word; if the flag value is 'unlocked', allowing the instruction to be executed, and sending the instruction to a corresponding application in the SIM card for processing;
further comprising the steps of:
SIM card locking state STK menu inquiry module (5): when a user inquires the locking state through the STK menu, reading a mark value in the SIM card locking mark storage module (3); if the flag value is "locked", the return display text indicates that the card is locked; if the flag value is "unlocked," the return display text indicates that the card is functioning properly.
2. system for locking/unlocking control of SIM card through data short message, characterized by including:
a card locking/unlocking data short message instruction sending background (1): the SIM card locking/unlocking system comprises an SIM card locking/unlocking application module (2) and a data short message instruction generation module, wherein the SIM card locking/unlocking application module is used for generating a data short message instruction according to a pre-stored security key and sending the data short message instruction to the SIM card locking/unlocking application module;
The SIM card locking/unlocking application module (2) carries out security verification on the received locking/unlocking data short message, and does not carry out any operation if the verification fails; if the verification is successful, namely the data short message instruction is legal, operating the SIM card locking mark storage module (3) according to the parameter of the instruction; if the command is an unlocking command, setting the flag value of the SIM card locking flag storage module (3) as 'unlocked'; if the command is a locking command, setting the mark value of the SIM card locking mark storage module (3) as 'locking';
the complete data short message consists of DE4+ R1+ MAC; the legal short message is the check short message with correct MAC, namely if the data short message format is DE4+ R1+ MAC, the data short message is complete; if the MAC of the data short message is correct, the data short message is a legal data short message;
Wherein: r1 represents the generation of a 4-byte random number; DE4 denotes the value obtained by the encryption algorithm; MAC represents that DE4 is calculated to obtain a value through the algorithm of 3DES CBC;
SIM card calibration flag storage module (3): for saving a flag value indicating the locking state of the current SIM card; the SIM card locking judgment module (4): the SIM card is used for reading the mark value in the SIM card locking mark storage module (3) when the SIM card receives the instruction, refusing to execute the instruction if the mark value is 'locked', and returning an error state word; if the flag value is 'unlocked', allowing the instruction to be executed, and sending the instruction to a corresponding application in the SIM card for processing;
Further comprising:
SIM card locking state STK menu inquiry module (5): the SIM card locking mark storage module is used for reading a mark value in the SIM card locking mark storage module (3) when a user inquires a locking state through the STK menu; if the flag value is "locked", the return display text indicates that the card is locked; if the flag value is "unlocked," the return display text indicates that the card is functioning properly.
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| CN201510510775.8A CN106470407B (en) | 2015-08-19 | 2015-08-19 | method and system for locking/unlocking control of SIM card through data short message |
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| CN102158340A (en) * | 2011-01-24 | 2011-08-17 | 华为终端有限公司 | Use restriction method for data card and data card |
| CN102307344A (en) * | 2011-04-27 | 2012-01-04 | 武汉天喻信息产业股份有限公司 | Air card-locking method for mobile phone wallet |
| CN104010298A (en) * | 2014-05-05 | 2014-08-27 | 深圳市汇川技术股份有限公司 | Safety protection system and method for SIM card of device terminal |
| CN104376467A (en) * | 2014-12-03 | 2015-02-25 | 东信和平科技股份有限公司 | Method and device for controlling non-contact card swiping of intelligent cards on basis of NFC (near field communication) technologies |
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