CN114549187A - Method and system for controlling marketing two-dimensional code use range by electronic bank - Google Patents
Method and system for controlling marketing two-dimensional code use range by electronic bank Download PDFInfo
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Abstract
The invention discloses a method and a system for controlling the use range of marketing two-dimensional codes by an electronic bank, wherein the method comprises the following steps: maintaining a control template in the two-dimensional code control system; the bank marketing personnel obtain the basic marketing two-dimensional code through the mobile terminal; processing the basic marketing two-dimensional code to form an encrypted marketing two-dimensional code containing ciphertext information and signature information; when the mobile equipment is identified, the verification request is automatically triggered and sent to a two-dimensional code control system; after receiving the verification request, reading ciphertext information and signature information in the encrypted marketing two-dimensional code, and decrypting to obtain equipment information and service information; after the two-dimension code control system judges that the two-dimension code contains control information, the related information of the mobile equipment is read; comparing the relevant information of the mobile equipment with the acquired equipment information and service information; if the information is consistent, the service request is forwarded to a service system, and related services are continuously processed; if the information is not consistent, the request is rejected. Corresponding systems and electronic devices are also disclosed.
Description
Technical Field
The invention relates to the technical field of banking and financial industry, in particular to a method and a system for controlling the use range of marketing two-dimensional codes by an electronic bank.
Background
At present, a bank often adopts a marketing two-dimensional code to develop popularization marketing activities, and the common mode is as follows: the branch generates a two-dimensional code of the WeChat public number of a certain branch of the bank for each customer manager, but the two-dimensional code only contains the ID information of the customer manager generally, and when a user scans the two-dimensional code to pay attention to the public number of the certain branch of the bank, the system establishes the association relationship between the customer and the customer manager. When a user inputs consultation information such as characters and voice on a WeChat public platform, the system firstly carries out intelligent customer service on the information (whether a corresponding reply exists or not is searched in a database, if so, the user is automatically replied, and if not, manual customer service is carried out), if the intelligent customer service cannot answer, the system is carried out to a customer manager associated with the user, and the customer manager carries out manual reply on the user. The method can recommend existing customers and new customers to the customer manager, guide the customer resources of the existing customer manager to the online, and attract the customer resources of the customer manager to the branch WeChat public platform. The method comprises three modes:
(1) the job number and data of each customer manager are recorded into a system in the platform, and the system automatically generates 1 WeChat public platform two-dimensional code for each customer manager; the customer manager prints the WeChat public platform two-dimensional code on a business card, and guides the customer to scan the two-dimensional code to pay attention to the public number through business card propagation.
(2) The customer manager forwards the push information in the WeChat public platform and the related information in the micro website to the WeChat friends or shares the WeChat friends with the WeChat public platform to attract the WeChat friends to pay attention to the WeChat public number in the mode.
(3) The attention activities are shared through all the websites and the client managers, the WeChat public number is paid attention to and publicized, and the influence is enlarged.
With the development of the internet, many financial institutions such as commercial banks provide electronic banking services to customers using the internet. The bank marketing personnel guide the customers to enter the exclusive service of the electronic bank through the two-dimension code, show specific products and become an important means for daily customer exhibition. However, in actual use, the customer manager cannot control the use range of the two-dimensional code, once the two-dimensional code is generated, the two-dimensional code does not contain any controllable information and only contains the ID single information of the customer manager, the displayed two-dimensional code is easy to copy and spread, the problems that the two-dimensional code is stolen, abused, tampered and the like exist, the two-dimensional code cannot be limited to be used in a target customer group, special products are subjected to transitional exposure or sold in the customer group without qualification, and therefore the use range of the two-dimensional code needs to be limited in a specific scene of the bank financial industry and cannot be spread randomly.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the following technical scheme that the method and the system for controlling the use range of the marketing two-dimensional code by the electronic bank enable the two-dimensional code to be only used by bank marketing personnel, limit the use range of the two-dimensional code in a specific scene of the bank financial industry, and cannot be randomly spread, stolen, abused or tampered, so that the service quality and the service efficiency are improved.
The invention provides a method for controlling the use range of marketing two-dimensional codes by an electronic bank, which comprises the following steps:
s1, maintaining a control template in the two-dimensional code control system;
s2, the bank marketing personnel obtain the basic marketing two-dimensional code through the mobile terminal;
s3, processing the basic marketing two-dimensional code to form an encrypted marketing two-dimensional code containing ciphertext information and signature information;
s4, when the encrypted marketing two-dimensional code is identified through mobile equipment, automatically triggering to send a verification request to the two-dimensional code control system;
s5, after receiving the verification request, the two-dimensional code control system reads the ciphertext information and the signature information in the encrypted marketing two-dimensional code and decrypts the ciphertext information and the signature information to obtain equipment information and service information, wherein the equipment information corresponds to equipment for providing the encrypted marketing two-dimensional code, and the service information comprises services of an electronic bank;
s6, after the two-dimensional code control system judges that the two-dimensional code contains control information, reading the related information of the mobile equipment;
s7, comparing the relevant information of the mobile equipment with the equipment information and the service information acquired in the S5; if the information is consistent, the service request is forwarded to a service system, and related services are continuously processed; and if the information is inconsistent, rejecting the service request.
Further, the S1 includes:
s11: configuring a control template, wherein the control template comprises control element information needing to be checked, and the control element information comprises an effective time period, geographical position information, a mobile phone number, a customer manager name and visible product information; the verification comprises the following steps: checking whether the valid time period is included, checking whether the geographical position information is included, checking whether the check mobile phone number is included, checking whether the segment position of the check mobile phone number is included, checking whether the name of a customer manager is included, checking whether the visible product information is included, wherein each control element information is a range type or an enumeration value type;
and S12, maintaining the specific control value of each control element information according to the control element information in the configured control template.
Further, the moving end of the S2 includes: cell phone APP, wechat applet, or public number.
Further, the S3 includes:
s31, the two-dimension code generating system encrypts the basic marketing two-dimension code according to the control element information maintained in the two-dimension code control system, and the method comprises the following steps: encrypting the time period, the geographical position information, the mobile phone number, the name of the customer manager and the visible product information data by using a pre-generated SM4 secret key to generate ciphertext information;
s32, the two-dimension code generating system signs the basic marketing two-dimension code according to the control element information maintained in the two-dimension code control system, and the method comprises the following steps: sorting time periods, geographical position information, data of mobile phone numbers and name control field information of a customer manager in an ascending order according to ASCII codes, and splicing characters to form a signature character string; extracting a digest of the signature string based on an SM3 hashing algorithm; signing the digest based on an SM2 private key to form signature information;
and S33, attaching the ciphertext information and the signature information to the basic marketing two-dimensional code to generate the encrypted marketing two-dimensional code.
Further, the S5 includes:
s51, decrypting the ciphertext information based on the SM4 secret key to obtain control element information, wherein the control element information comprises time periods, geographical position information, data of mobile phone numbers and name control field information of a customer manager;
s52, extracting the abstract based on SM3 according to the control element information;
and S53, performing SM2 signature on the abstract based on the SM2 public key, and if the signature passes, indicating that the control information is not modified.
Further, the SM2 private key is generated based on a national key asymmetric algorithm, and the SM4 private key is generated by a national key symmetric algorithm.
Further, the method further comprises S8, wherein the business system displays the business information corresponding to the marketing two-dimensional code on the mobile device and processes the business information.
In a second aspect of the present invention, a system for controlling a marketing two-dimensional code use range by an electronic bank is provided, which includes:
the two-dimensional code control system comprises a control template, wherein the control template comprises control element information needing to be checked, and the control element information comprises an effective time period, geographical position information, a mobile phone number, a customer manager name and visible product information; the verification comprises the following steps: checking whether the valid time period is included, checking whether the geographical position information is included, checking whether the check mobile phone number is included, checking whether the segment position of the check mobile phone number is included, checking whether the name of a customer manager is included, checking whether the visible product information is included, wherein each control element information is a range type or an enumeration value type;
the marketing two-dimensional code generating system is used for the bank marketing personnel to obtain the basic marketing two-dimensional code through the mobile terminal;
the marketing two-dimensional code encryption and signature system is used for encrypting and signing the basic marketing two-dimensional code to form an encrypted marketing two-dimensional code containing ciphertext information and signature information;
the marketing two-dimensional code decryption system is used for reading the ciphertext information and the signature information in the encrypted marketing two-dimensional code and decrypting the ciphertext information and the signature information to obtain equipment information and business information after the two-dimensional code control system receives a verification request sent by mobile equipment, the equipment information corresponds to equipment for providing the encrypted marketing two-dimensional code, and the business information comprises business of the electronic bank;
the judgment system is used for comparing the relevant information of the mobile equipment with the equipment information and the service information acquired in the step S5; if the information is consistent, the service request is forwarded to a service system, and related services are continuously processed; if the information is inconsistent, the service request is rejected;
and the business system is used for displaying the business information corresponding to the marketing two-dimension code on the mobile equipment and processing the business information.
A third aspect of the invention provides an electronic device comprising a processor and a memory, the memory storing a plurality of instructions, the processor being configured to read the instructions and to perform the method according to the first aspect.
A fourth aspect of the invention provides a computer readable storage medium storing a plurality of instructions readable by a processor and performing the method of the first aspect.
The method, the system and the electronic equipment for controlling the marketing two-dimensional code application range by the electronic bank have the following beneficial effects:
the two-dimensional code is only used by bank marketing personnel, the application range of the two-dimensional code is limited in a specific scene of the bank financial industry, the two-dimensional code cannot be randomly spread, stolen, abused or tampered, and the service quality and the service efficiency are improved.
Drawings
Fig. 1 is a flowchart of a method for controlling the marketing two-dimensional code application range by an electronic bank.
Fig. 2 is a schematic diagram of a preferred system operation provided by the present invention.
Fig. 3 is a schematic structural diagram of an embodiment of an electronic device provided in the present invention.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
The method provided by the invention can be implemented in the following terminal environment, and the terminal can comprise one or more of the following components: a processor, a memory, and a display screen. Wherein the memory has stored therein at least one instruction that is loaded and executed by the processor to implement the methods described in the embodiments described below.
A processor may include one or more processing cores. The processor connects various parts within the overall terminal using various interfaces and lines, performs various functions of the terminal and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory, and calling data stored in the memory.
The Memory may include a Random Access Memory (RAM) or a Read-Only Memory (ROM). The memory may be used to store instructions, programs, code sets, or instructions.
The display screen is used for displaying user interfaces of all the application programs.
In addition, those skilled in the art will appreciate that the above-described terminal configurations are not intended to be limiting, and that the terminal may include more or fewer components, or some components may be combined, or a different arrangement of components. For example, the terminal further includes a radio frequency circuit, an input unit, a sensor, an audio circuit, a power supply, and other components, which are not described herein again.
Example one
As shown in fig. 1, a method for controlling a marketing two-dimensional code using range by an electronic bank includes:
s1, maintaining a control template in the two-dimensional code control system, including:
s11: configuring a control template, wherein the control template comprises control element information needing to be checked, and the control element information comprises an effective time period, geographical position information, a mobile phone number, a customer manager name and visible product information; the verification comprises the following steps: checking whether the valid time period is included, checking whether the geographical position information is included, checking whether the check mobile phone number is included, checking whether the segment position of the check mobile phone number is included, checking whether the name of a customer manager is included, checking whether the visible product information is included, wherein each control element information is a range type or an enumeration value type;
s12, maintaining a specific control value of each control element information according to the control element information in the configured control template, where if the valid time is a range value, the start and end dates of the valid time need to be maintained; if the name of the customer manager is an enumerated value, the specific name of the customer manager needs to be filled in.
S2, the bank marketer moves the terminal as follows: and (4) logging in a marketing two-dimensional code generating system through a mobile phone APP or a WeChat applet or a public number to obtain a basic marketing two-dimensional code.
S3, processing the basic marketing two-dimensional code to form an encrypted marketing two-dimensional code containing ciphertext information and signature information, including:
s31, the two-dimension code generating system encrypts the basic marketing two-dimension code according to the control element information maintained in the two-dimension code control system, and the method comprises the following steps: encrypting the time period, the geographical position information, the mobile phone number, the name of the customer manager and the visible product information data by using a pre-generated SM4 secret key (national password symmetric algorithm) to generate ciphertext information;
s32, the two-dimension code generating system signs the basic marketing two-dimension code according to the control element information maintained in the two-dimension code control system, and the method comprises the following steps: sorting time periods, geographical position information, data of mobile phone numbers and name control field information of a customer manager in an ascending order according to ASCII codes, and splicing characters to form a signature character string; extracting a digest of the signature string based on an SM3 hashing algorithm; signing the abstract based on an SM2 private key (national password asymmetric algorithm) to form signature information;
and S33, attaching the ciphertext information and the signature information to the basic marketing two-dimensional code to generate the encrypted marketing two-dimensional code.
And S4, when the encrypted marketing two-dimensional code is identified through the mobile equipment, automatically triggering to send a verification request to the two-dimensional code control system.
S5, after receiving the verification request, the two-dimensional code control system reads the ciphertext information and the signature information in the encrypted marketing two-dimensional code and decrypts the ciphertext information and the signature information to obtain device information and service information, where the device information corresponds to a device providing the encrypted marketing two-dimensional code, and the service information includes services of the electronic bank, including:
s51, decrypting the ciphertext information based on an SM4 secret key (national cipher symmetric algorithm) to obtain control element information, wherein the control element information comprises time periods, geographical position information, data of mobile phone numbers and name control field information of a customer manager;
s52, extracting the abstract based on SM3 according to the control element information;
and S53, performing SM2 signature verification on the abstract based on an SM2 public key (the cryptographic asymmetric algorithm), wherein if the signature verification is passed, the control information is not modified.
S6, after the two-dimensional code control system determines that the two-dimensional code contains control information, the two-dimensional code control system reads the relevant information of the mobile device, such as: time periods, geographic location information, cell phone numbers, or entry of relevant information by the equipment holder, such as: the name of the customer manager.
S7, comparing the relevant information of the mobile equipment with the equipment information and the service information acquired in the S5; if the information is consistent, the service request is forwarded to a service system, and related services are continuously processed; and if the information is inconsistent, rejecting the service request.
Further, the method further comprises S8, wherein the business system displays the business information corresponding to the marketing two-dimensional code on the mobile device and processes the business information.
Example two
Application scenarios: and purchasing financial products and financing products through marketing two-dimensional codes.
Step S10: the two-dimensional code control system is used for controlling elements needing to be verified in the system, such as: the effective time is 8 months and 25 days, the geographic position information is Guangzhou city, the beginning of the mobile phone number is 186, the name of the customer manager and other information are maintained and entered into the control system.
Step S20: customer managers through mobile terminals such as: and the mobile phone APP or the WeChat applet and the public number login two-dimensional code generation system acquires the two-dimensional code.
Step S30: the two-dimensional code generation system maintains elements according to the control system, such as: and encrypting the time period, the geographical position information, the mobile phone number and the name of the customer manager by using a private key generated by an asymmetric algorithm to generate a two-dimensional code.
Step S40: the customer needs to purchase the deposit product, scans the two-dimensional code by using the WeChat, and the WeChat sends the two-dimensional code request to the two-dimensional code control system.
Step S50: and the two-dimensional code control system decrypts to obtain the element and condition information required to be controlled.
Step S60: reading mobile device related information, such as: the system date of the mobile phone, the GPS geographic position information of the mobile phone, the number of the mobile phone, or the related information such as the name of a customer manager and the like are input into a dialog box popped up by a holder of the prompting device in the WeChat.
Step S70: the two-dimensional code control system compares the read device information with the required control information obtained by decrypting in S50. If the mobile phone time is within 8 months and 25 days, the geographic position of the mobile phone is Guangzhou city, the mobile phone number and the name of the customer manager recorded by the customer are consistent with the comparison information, and the service request is forwarded to the service system. If not, the request is rejected.
Step S80: and the service system displays the product purchase page and the product information to the customer.
EXAMPLE III
A system for controlling the use range of marketing two-dimensional codes by an electronic bank comprises:
the two-dimensional code control system comprises a control template, wherein the control template comprises control element information needing to be checked, and the control element information comprises an effective time period, geographical position information, a mobile phone number, a customer manager name and visible product information; the verification comprises the following steps: checking whether the valid time period is included, checking whether the geographical position information is included, checking whether the check mobile phone number is included, checking whether the segment position of the check mobile phone number is included, checking whether the name of a customer manager is included, checking whether the visible product information is included, wherein each control element information is a range type or an enumeration value type;
the marketing two-dimensional code generating system is used for the bank marketing personnel to obtain the basic marketing two-dimensional code through the mobile terminal;
the marketing two-dimensional code encryption and signature system is used for encrypting and signing the basic marketing two-dimensional code to form an encrypted marketing two-dimensional code containing ciphertext information and signature information;
the marketing two-dimensional code decryption system is used for reading the ciphertext information and the signature information in the encrypted marketing two-dimensional code and decrypting the ciphertext information and the signature information to obtain equipment information and business information after the two-dimensional code control system receives the verification request sent by the mobile equipment, the equipment information corresponds to equipment for providing the encrypted marketing two-dimensional code, and the business information comprises business of the electronic bank;
the judgment system is used for comparing the relevant information of the mobile equipment with the equipment information and the service information acquired in the step S5; if the information is consistent, the service request is forwarded to a service system, and related services are continuously processed; if the information is not consistent, the service request is rejected;
and the business system is used for displaying the business information corresponding to the marketing two-dimension code on the mobile equipment and processing the business information.
The system can implement the control methods provided in the first and second embodiments, and the specific control methods can be referred to the descriptions in the first and second embodiments and are not described herein again.
Fig. 2 is a schematic diagram of a preferred system operation of the present invention.
The invention also provides a memory storing a plurality of instructions for implementing the method of embodiment one.
As shown in fig. 3, the present invention further provides an electronic device, which includes a processor 301 and a memory 302 connected to the processor 301, where the memory 302 stores a plurality of instructions, and the instructions can be loaded and executed by the processor, so that the processor can execute the method according to the first embodiment.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method for controlling the use range of marketing two-dimensional codes by an electronic bank is characterized by comprising the following steps:
s1, maintaining a control template in the two-dimensional code control system;
s2, the bank marketing personnel obtain the basic marketing two-dimensional code through the mobile terminal;
s3, processing the basic marketing two-dimensional code to form an encrypted marketing two-dimensional code containing ciphertext information and signature information;
s4, when the encrypted marketing two-dimensional code is identified through mobile equipment, automatically triggering to send a verification request to the two-dimensional code control system;
s5, after receiving the verification request, the two-dimensional code control system reads the ciphertext information and the signature information in the encrypted marketing two-dimensional code and decrypts the ciphertext information and the signature information to obtain equipment information and service information, wherein the equipment information corresponds to equipment for providing the encrypted marketing two-dimensional code, and the service information comprises services of an electronic bank;
s6, after the two-dimensional code control system judges that the two-dimensional code contains control information, reading the related information of the mobile equipment;
s7, comparing the relevant information of the mobile equipment with the equipment information and the service information acquired in the S5; if the information is consistent, the service request is forwarded to a service system, and related services are continuously processed; and if the information is inconsistent, rejecting the service request.
2. The method for controlling the marketing two-dimensional code use range of the electronic bank according to claim 1, wherein the S1 includes:
s11: configuring a control template, wherein the control template comprises control element information needing to be checked, and the control element information comprises an effective time period, geographical position information, a mobile phone number, a customer manager name and visible product information; the verification comprises the following steps: checking whether the valid time period is included, checking whether the geographical position information is included, checking whether the check mobile phone number is included, checking whether the segment position of the check mobile phone number is included, checking whether the name of a customer manager is included, checking whether the visible product information is included, wherein each control element information is a range type or an enumeration value type;
and S12, maintaining the specific control value of each control element information according to the control element information in the configured control template.
3. The method for controlling the marketing two-dimensional code use range of the electronic bank according to claim 1, wherein the mobile terminal of the S2 comprises: cell phone APP, wechat applet, or public number.
4. The method for controlling the marketing two-dimensional code use range of the electronic bank according to claim 2, wherein the S3 includes:
s31, the two-dimension code generating system encrypts the basic marketing two-dimension code according to the control element information maintained in the two-dimension code control system, and the method comprises the following steps: encrypting the time period, the geographical position information, the mobile phone number, the name of the customer manager and the visible product information data by using a pre-generated SM4 secret key to generate ciphertext information;
s32, the two-dimension code generating system signs the basic marketing two-dimension code according to the control element information maintained in the two-dimension code control system, and the method comprises the following steps: sorting time periods, geographical position information, data of mobile phone numbers and name control field information of a customer manager in an ascending order according to ASCII codes, and splicing characters to form a signature character string; extracting a digest of the signature character string based on an SM3 hashing algorithm; signing the digest based on an SM2 private key to form signature information;
and S33, attaching the ciphertext information and the signature information to the basic marketing two-dimensional code to generate the encrypted marketing two-dimensional code.
5. The method for controlling the marketing two-dimensional code use range of the electronic bank according to claim 4, wherein the S5 includes:
s51, decrypting the ciphertext information based on the SM4 secret key to obtain control element information, wherein the control element information comprises time periods, geographical position information, data of mobile phone numbers and name control field information of a customer manager;
s52, extracting the abstract based on SM3 according to the control element information;
and S53, performing SM2 signature on the abstract based on the SM2 public key, wherein the control information is not modified through the signature.
6. The method for controlling the use range of the marketing two-dimensional code by the electronic bank as claimed in claim 5, wherein the SM2 private key is generated based on a national password asymmetric algorithm, and the SM4 private key is generated by the national password symmetric algorithm.
7. The method for controlling the use range of the marketing two-dimensional code by the electronic bank according to claim 1, further comprising S8, wherein the business system displays and processes business information corresponding to the marketing two-dimensional code on the mobile device.
8. A system for controlling the marketing two-dimensional code using range by electronic banks implementing the method of any one of claims 1 to 7, comprising:
the two-dimensional code control system comprises a control template, wherein the control template comprises control element information needing to be checked, and the control element information comprises an effective time period, geographical position information, a mobile phone number, a customer manager name and visible product information; the verification comprises the following steps: checking whether the valid time period is included, checking whether the geographical position information is included, checking whether the check mobile phone number is included, checking whether the segment position of the check mobile phone number is included, checking whether the name of a customer manager is included, checking whether the visible product information is included, wherein each control element information is a range type or an enumeration value type;
the marketing two-dimensional code generating system is used for the bank marketing personnel to obtain the basic marketing two-dimensional code through the mobile terminal;
the marketing two-dimensional code encryption and signature system is used for encrypting and signing the basic marketing two-dimensional code to form an encrypted marketing two-dimensional code containing ciphertext information and signature information;
the marketing two-dimensional code decryption system is used for reading the ciphertext information and the signature information in the encrypted marketing two-dimensional code and decrypting the ciphertext information and the signature information to obtain equipment information and service information after the two-dimensional code control system receives a verification request sent by mobile equipment, the equipment information corresponds to equipment for providing the encrypted marketing two-dimensional code, and the service information comprises services of the electronic bank;
the judgment system is used for comparing the relevant information of the mobile equipment with the equipment information and the service information acquired in the step S5; if the information is consistent, the service request is forwarded to a service system, and related services are continuously processed; if the information is inconsistent, the service request is rejected;
and the business system is used for displaying the business information corresponding to the marketing two-dimension code on the mobile equipment and processing the business information.
9. An electronic device comprising a processor and a memory, the memory storing a plurality of instructions, the processor configured to read the instructions and perform the method of any of claims 1-7.
10. A computer-readable storage medium storing a plurality of instructions readable by a processor and performing the method of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210448526.0A CN114549187B (en) | 2022-04-24 | 2022-04-24 | Method and system for controlling marketing two-dimensional code use range by electronic bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210448526.0A CN114549187B (en) | 2022-04-24 | 2022-04-24 | Method and system for controlling marketing two-dimensional code use range by electronic bank |
Publications (2)
| Publication Number | Publication Date |
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| CN114549187A true CN114549187A (en) | 2022-05-27 |
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