CN103870958A - Mobile payment method and mobile payment exclusive device - Google Patents

Mobile payment method and mobile payment exclusive device Download PDF

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Publication number
CN103870958A
CN103870958A CN201210541013.0A CN201210541013A CN103870958A CN 103870958 A CN103870958 A CN 103870958A CN 201210541013 A CN201210541013 A CN 201210541013A CN 103870958 A CN103870958 A CN 103870958A
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transaction information
mobile payment
payment
transaction
intelligent terminal
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CN201210541013.0A
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CN103870958B (en
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胡鹏
吴匀
陈杰
靳松
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Beijing Watertek Information Technology Co Ltd
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Beijing Watertek Information Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
    • G06Q20/322—Aspects of commerce using mobile devices [M-devices]
    • G06Q20/3223—Realising banking transactions through M-devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
    • G06Q20/327—Short range or proximity payments by means of M-devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/409—Device specific authentication in transaction processing
    • G06Q20/4097—Device specific authentication in transaction processing using mutual authentication between devices and transaction partners

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  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • General Business, Economics & Management (AREA)
  • Strategic Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Security & Cryptography (AREA)
  • Finance (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)

Abstract

The invention provides a mobile terminal payment method and a mobile payment exclusive device. The method comprises: the mobile payment exclusive device receives transaction information, the mobile payment exclusive device performs digital signing on the transaction information, and the mobile payment exclusive device transmits the transaction information and the digital signature to a financial transaction system through an intelligent terminal. The invention guarantees the safety of the mobile payment.

Description

Mobile payment method and special mobile payment equipment
Technical Field
The invention relates to the field of mobile payment, in particular to a mobile payment method and mobile payment special equipment.
Background
With the rapid development of computer technology, internet and mobile internet technology, domestic enterprise groups, government offices and financial institutions all establish a fast and efficient network channel between themselves and the public by using networks, and provide various application services for people.
Due to the mass popularization of smart phones and the urgent need of people for mobile transactions, financial institutions have promoted services such as mobile banking and mobile payment, and users can directly complete multiple services of a financial transaction system through an intelligent terminal. However, the design concept of the existing intelligent terminal is not specially used for financial transactions on the network, and the corresponding operating system and device composition have security holes, so that huge security threats and risks are brought to the network financial transaction system.
Disclosure of Invention
The invention provides a mobile payment method and mobile payment special equipment, aiming at solving the technical problem of ensuring the security of mobile payment.
In order to solve the technical problem, the invention provides a mobile payment method, which comprises the following steps:
receiving, by the mobile payment specific device, transaction information;
digitally signing, by the mobile payment specific device, the transaction information;
and the special mobile payment equipment sends the transaction information and the digital signature thereof to a financial transaction system through an intelligent terminal.
Further, the step of receiving transaction information by the mobile payment specific device comprises:
the mobile payment special equipment receives transaction information through a plurality of transaction payment ports arranged by the mobile payment special equipment;
the plurality of transaction payment ports includes: a magnetic stripe card payment port, an IC card payment port, a Radio Frequency Identification (RFID) payment port, and an electronic wallet payment port.
Further, the step of sending the transaction information and the digital signature thereof to a financial transaction system by the mobile payment special device through an intelligent terminal comprises:
the mobile payment special equipment is connected with the intelligent terminal;
and the special mobile payment equipment and the intelligent terminal perform key authentication through the established connection, and when the key authentication is passed, the special mobile payment equipment sends the transaction information and the digital signature thereof to the intelligent terminal.
Further, the step of performing key authentication on the mobile payment special device and the intelligent terminal through the established connection includes:
the mobile payment special equipment determines a financial transaction system according to the transaction information and informs the financial transaction system to the intelligent terminal through the established connection;
the intelligent terminal selects a key corresponding to the financial transaction system from a plurality of keys corresponding to different financial transaction systems stored in the intelligent terminal, calculates digital information according to the key and the unique equipment identification acquired from the special mobile payment equipment, and sends the digital information to the special mobile payment equipment;
the mobile payment special device compares the digital information with digital information calculated by itself according to a key corresponding to the financial transaction system and the unique device identification, and if the two are the same, the authentication is passed.
Further, the method further comprises:
before the special mobile payment equipment receives the transaction information, legal identity authentication is also carried out;
and after the mobile payment special equipment verifies that the identity is legal, receiving the input of the transaction information.
In order to solve the above technical problem, the present invention further provides a device dedicated for mobile payment, wherein the device comprises: a transaction information acquisition module, a safety function module and a communication module, wherein,
the transaction information acquisition module is used for acquiring transaction information and sending the acquired transaction information to the safety function module and the communication module;
the safety function module is used for carrying out digital signature on the transaction information and sending the digital signature to the communication module;
and the communication module is used for sending the transaction information and the digital signature thereof to a financial transaction system through an intelligent terminal.
Further, the transaction information obtaining module is configured to obtain the transaction information, and includes:
the transaction information acquisition module is used for providing various transaction payment ports and receiving transaction information through the various transaction payment ports; the plurality of payment ports includes: a magnetic stripe card payment port, an IC card payment port, a Radio Frequency Identification (RFID) payment port, and an electronic wallet payment port.
Further:
the communication module is used for establishing connection with the intelligent terminal and carrying out key authentication with the intelligent terminal on the established connection; and after the key authentication is passed, the transaction information and the digital signature thereof are sent to a financial transaction system through the intelligent terminal.
Further, the communication module, configured to perform key authentication with the intelligent terminal on the established connection, includes:
the communication module is used for determining a financial transaction mechanism for processing the transaction information according to the transaction information, sending the financial transaction mechanism to the intelligent terminal through the established connection, and calculating digital information according to a secret key corresponding to the financial transaction system and the unique identifier of the equipment; and comparing the digital information with digital information which is obtained by calculation by using the key determined by the financial transaction institution and is returned by the intelligent terminal, and if the digital information and the digital information are the same, the authentication is passed.
Further, the device further comprises an identity verification module,
the identity authentication module is used for authenticating the legal identity of the user and informing the transaction information input module after the authentication is passed;
and the transaction information input module is used for allowing the transaction information to be input after receiving the notice.
The technical scheme is that the transaction operation completed by the intelligent terminal in the existing mobile payment technology is completed by the mobile payment special device, and the mobile payment safety is ensured through the specificity of the mobile payment special device.
Drawings
Fig. 1 is a flowchart of a mobile payment method according to the embodiment;
fig. 2 is a composition diagram of the mobile payment-dedicated device of the embodiment;
fig. 3 is a composition diagram of a mobile payment-dedicated device of the present application example.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Fig. 1 is a flowchart of a mobile payment method according to the embodiment.
S101, receiving transaction information by the mobile payment special equipment;
the mobile payment special device can provide various transaction payment ports for users to select, such as a magnetic stripe card payment port, an IC card payment port, a Radio Frequency Identification (RFID) payment port or an electronic wallet payment port; the user can input transaction information to the mobile payment special device through the transaction payment ports; the transaction information at least comprises a payment account, a payment amount and a payment password; for example, the e-wallet payment port provides the user with an input window for electronic accounts, passwords, and payment amounts; (ii) a The magnetic stripe card payment port provides a card reader for swiping a card and an input window of payment amount for a user;
in order to ensure the safety of mobile payment, the mobile payment equipment can carry out validity verification on the identity of a user before receiving input operation of the user; the user is allowed to enter transaction information only after the mobile payment-specific device confirms that the user's identity is legitimate. There are many methods for verifying the identity of a user by a mobile payment device, such as password verification, fingerprint verification, etc.;
in order to ensure the security of mobile payment, after the mobile payment special equipment acquires the transaction information, the transaction information can be displayed to the user again, and the user confirms whether to perform the following operation;
s102, the transaction information is digitally signed by the special mobile payment equipment;
s103, the transaction information and the digital signature thereof are sent to a financial transaction system by the mobile payment special equipment through an intelligent terminal;
in step S103, the mobile payment dedicated device first establishes a connection with the smart terminal, where the connection between the mobile payment dedicated device and the smart terminal is established in a manner (not limited to): a WIFI connection, a bluetooth connection, a Near Field Communication (NFC) connection, an earphone connection, or a USB connection;
after the connection is established, the mobile payment special equipment and the intelligent terminal perform key authentication through the established connection; the key authentication method can be realized by the internal authentication and the external authentication of the intelligent terminal alone or by the cooperation of the intelligent terminal and the mobile payment special equipment; the steps of the authentication by the cooperation of the intelligent terminal and the mobile payment special device can be as follows:
the method comprises the following steps: the mobile payment special equipment determines a financial transaction system for processing the transaction information according to the transaction information and informs the intelligent terminal of the determined financial transaction system through the established connection;
the intelligent terminal acquires the unique equipment identifier from the special mobile payment equipment through the established connection;
step two: the intelligent terminal selects a key corresponding to the financial transaction system from a plurality of keys corresponding to different financial transaction systems stored in the intelligent terminal;
step three: the intelligent terminal calculates digital information according to the key selected in the step two and the unique equipment identifier obtained in the step one;
step four: the intelligent terminal sends the digital information to the mobile payment special equipment;
step five: the mobile payment special equipment selects a key corresponding to the financial transaction system from a plurality of keys corresponding to different financial transaction systems stored by the mobile payment special equipment; calculating a digital message according to the key and the device identifier; the mobile payment special equipment compares whether the digital information calculated by the mobile payment special equipment is the same as the digital information received from the intelligent terminal, and if the digital information is the same, the authentication is passed.
After the key authentication is passed, the mobile payment special equipment sends the transaction information and the digital signature thereof to the intelligent terminal; after the intelligent terminal receives the transaction information, the transaction information can be displayed on the intelligent terminal, and the user is allowed to confirm whether the transaction information is continuously sent to the financial transaction system;
the intelligent terminal sends the transaction information and the digital signature thereof to the financial transaction system through a secure channel established with the financial transaction system; the secure channel may be an SSL channel in current conventional PKI technology, and the digital certificate and key required to establish the SSL channel may be the user's digital certificate and private key stored on the mobile payment specific device.
In order to make the user clear the transaction result, the financial transaction system verifies and processes the received transaction information and the digital signature thereof, and then returns the processing result and the digital signature thereof to the intelligent terminal; and the intelligent terminal sends the processing result and the digital signature thereof to the mobile payment terminal.
Fig. 2 is a composition diagram of the mobile payment dedicated device according to the embodiment.
The equipment comprises a transaction information acquisition module, a safety function module and a communication module, wherein,
the transaction information acquisition module is used for acquiring transaction information and sending the acquired transaction information to the safety function module and the communication module;
the transaction information input module is used for providing a plurality of transaction payment ports and receiving transaction information through the transaction payment ports; the plurality of payment ports includes: a magnetic stripe card payment port, an IC card payment port, a Radio Frequency Identification (RFID) payment port, and an electronic wallet payment port;
the safety function module is used for carrying out digital signature on the transaction information and sending the digital signature to the communication module;
the communication module is used for sending the transaction information and the digital signature thereof to a financial transaction system through an intelligent terminal;
the communication module is used for establishing connection with an intelligent terminal, and the connection establishment mode comprises WIFI connection, Bluetooth connection, Near Field Communication (NFC) connection, earphone connection or USB connection; and carrying out key authentication with the intelligent terminal on the established connection; and after the key authentication is passed, the transaction information and the digital signature thereof are sent to a financial transaction system through the intelligent terminal.
In order to ensure the safety, the equipment also comprises an identity authentication module which is used for carrying out legal identity authentication on the user and informing the transaction information input module after the authentication is passed; and the transaction information input module is used for allowing the transaction information to be input after the notification is received.
Fig. 3 is a composition diagram of a mobile payment-dedicated device of the present application example.
The special equipment comprises a transaction information acquisition module, a safety function module, a communication module, an identity verification module and a main controller; wherein,
the main controller is a central processor of the mobile payment special equipment, and can adopt a high-safety SOC chip based on an 8-bit or more RISC processor, an STM32 chip of Ruyi method semiconductor company ST or a Z8D168U chip of national technical company, and the like;
the identity authentication module is used for authenticating the identity of the user when the mobile payment special equipment is switched from a standby state to a working state or from a power-off state to a power-on state under the control of the main controller; and notifying the main controller after the verification is passed; the method for verifying the user identity comprises password authentication and fingerprint authentication;
the transaction information acquisition module is used for acquiring transaction information when the user identity is legal under the control of the main controller and sending the acquired transaction information to the communication module and the safety function module through the main controller;
the safety function module is used for carrying out digital signature on the transaction information acquired by the transaction information acquisition module under the control of the main controller and sending the digital signature to the communication module;
and the communication module is used for sending the received transaction information and the signature thereof to a financial transaction system through the intelligent terminal under the control of the main controller.
The transaction information acquisition module includes: payment submodule, button submodule piece, display submodule piece, storage submodule piece and image reading submodule piece, wherein:
the payment submodule provides a plurality of transaction payment ports and receives transaction information through the plurality of transaction payment ports; the plurality of payment ports includes: a magnetic stripe card payment port, an IC card payment port, a Radio Frequency Identification (RFID) payment port, and an electronic wallet payment port; for example, the e-wallet payment port provides the user with an input window for electronic accounts, passwords, and payment amounts; the magnetic stripe card payment port provides a card reader for swiping a card and an input window of payment amount for a user; the payment submodule sends the received transaction information to the storage submodule;
the image reading sub-module is used for reading the transaction information from the image (such as a bar code and a two-dimensional code) and sending the transaction information to the storage sub-module;
the key submodule is used for providing a function of inputting information through a keyboard for a user; for example, the user can input the transaction information into an input window provided by a relevant unit in the payment submodule through the key submodule;
the display submodule is used for displaying information to a user; the information may be transaction information stored by the storage submodule;
and the storage submodule is used for storing the transaction information acquired by the transaction information acquisition module and sending the stored transaction information to the safety module under the control of the main controller.
The above-mentioned safety function module includes: the digital signature submodule, the digital certificate submodule and the key management submodule are as follows:
the digital signature submodule is used for acquiring a digital certificate from the digital certificate submodule, acquiring a private key of the mobile payment special device from the key management module, digitally signing the transaction information stored by the storage submodule by using the digital certificate and the private key, and sending the digital signature to the communication module;
the digital certificate submodule is used for storing a digital certificate of the mobile payment special device;
and the key management submodule is used for managing a private key of the mobile payment special device and a plurality of keys corresponding to different financial transaction systems.
The communication module comprises a wifi connecting unit, a Bluetooth connecting unit, an earphone connecting yard, a USB connecting unit and an NFC connecting unit; each connection unit is established with the intelligent terminal through a corresponding connection technology, and uploads the received transaction information and the digital signature thereof to the intelligent terminal.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits, and accordingly, each module/unit in the foregoing embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
It should be noted that the present invention can be embodied in other specific forms, and various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. A mobile payment method, the method comprising:
receiving, by the mobile payment specific device, transaction information;
digitally signing, by the mobile payment specific device, the transaction information;
and the special mobile payment equipment sends the transaction information and the digital signature thereof to a financial transaction system through an intelligent terminal.
2. The method of claim 1, wherein the step of receiving transaction information by a mobile payment specific device further comprises:
the mobile payment special equipment receives transaction information through a plurality of transaction payment ports arranged by the mobile payment special equipment;
the plurality of transaction payment ports includes: a magnetic stripe card payment port, an IC card payment port, a Radio Frequency Identification (RFID) payment port, and an electronic wallet payment port.
3. The method of claim 1, wherein the step of transmitting the transaction information and its digital signature by the mobile payment specific device to a financial transaction system through a smart terminal further comprises:
the mobile payment special equipment is connected with the intelligent terminal;
and the special mobile payment equipment and the intelligent terminal perform key authentication through the established connection, and when the key authentication is passed, the special mobile payment equipment sends the transaction information and the digital signature thereof to the intelligent terminal.
4. The method of claim 3, wherein the step of key authentication of the mobile payment specific device and the smart terminal through the established connection further comprises:
the mobile payment special equipment determines a financial transaction system according to the transaction information and informs the financial transaction system to the intelligent terminal through the established connection;
the intelligent terminal selects a key corresponding to the financial transaction system from a plurality of keys corresponding to different financial transaction systems stored in the intelligent terminal, calculates digital information according to the key and the unique equipment identification acquired from the special mobile payment equipment, and sends the digital information to the special mobile payment equipment;
the mobile payment special device compares the digital information with digital information calculated by itself according to a key corresponding to the financial transaction system and the unique device identification, and if the two are the same, the authentication is passed.
5. The method of any one of claims 1 to 4, further comprising:
before the special mobile payment equipment receives the transaction information, legal identity authentication is also carried out;
and after the mobile payment special equipment verifies that the identity is legal, receiving the input of the transaction information.
6. A mobile payment specific device, the device comprising: a transaction information acquisition module, a safety function module and a communication module, wherein,
the transaction information acquisition module is used for acquiring transaction information and sending the acquired transaction information to the safety function module and the communication module;
the safety function module is used for carrying out digital signature on the transaction information and sending the digital signature to the communication module;
and the communication module is used for sending the transaction information and the digital signature thereof to a financial transaction system through an intelligent terminal.
7. The apparatus of claim 6, wherein the transaction information obtaining module, for obtaining transaction information, further comprises:
the transaction information acquisition module is used for providing various transaction payment ports and receiving transaction information through the various transaction payment ports; the plurality of payment ports includes: a magnetic stripe card payment port, an IC card payment port, a Radio Frequency Identification (RFID) payment port, and an electronic wallet payment port.
8. The apparatus of claim 6, wherein the apparatus further comprises:
the communication module is used for establishing connection with the intelligent terminal and carrying out key authentication with the intelligent terminal on the established connection; and after the key authentication is passed, the transaction information and the digital signature thereof are sent to a financial transaction system through the intelligent terminal.
9. The device of claim 8, wherein the communication module configured to perform key authentication with the smart terminal over the established connection further comprises:
the communication module is used for determining a financial transaction mechanism for processing the transaction information according to the transaction information, sending the financial transaction mechanism to the intelligent terminal through the established connection, and calculating digital information according to a secret key corresponding to the financial transaction system and the unique identifier of the equipment; and comparing the digital information with digital information which is obtained by calculation by using the key determined by the financial transaction institution and is returned by the intelligent terminal, and if the digital information and the digital information are the same, the authentication is passed.
10. The apparatus of claims 6-9, wherein the apparatus further comprises an identity verification module,
the identity authentication module is used for authenticating the legal identity of the user and informing the transaction information input module after the authentication is passed;
and the transaction information input module is used for allowing the transaction information to be input after receiving the notice.
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CN104123645A (en) * 2014-07-15 2014-10-29 北京金科联信数据科技有限公司 Financial security authentication based mobile Internet intelligent payment terminal and payment system
CN105590206A (en) * 2014-11-26 2016-05-18 中国银联股份有限公司 Method for verifying terminal authenticity in electronic cash transaction
CN108596620A (en) * 2018-04-27 2018-09-28 北京华大智宝电子系统有限公司 A kind of endorsement method and device
CN111815318A (en) * 2020-06-17 2020-10-23 衡水海博云科技有限公司 Equipment, system and method for aggregated payment

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CN101739624A (en) * 2008-11-06 2010-06-16 同方股份有限公司 Trusted payment network system
CN101853453A (en) * 2009-04-03 2010-10-06 中兴通讯股份有限公司 System and method for realizing mobile payment
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104123645A (en) * 2014-07-15 2014-10-29 北京金科联信数据科技有限公司 Financial security authentication based mobile Internet intelligent payment terminal and payment system
CN104123645B (en) * 2014-07-15 2018-08-31 北京金科联信数据科技有限公司 Mobile Internet intelligent payment terminal and payment system based on financial security certification
CN105590206A (en) * 2014-11-26 2016-05-18 中国银联股份有限公司 Method for verifying terminal authenticity in electronic cash transaction
CN105590206B (en) * 2014-11-26 2020-10-23 中国银联股份有限公司 Method for verifying terminal authenticity in electronic cash transaction
CN108596620A (en) * 2018-04-27 2018-09-28 北京华大智宝电子系统有限公司 A kind of endorsement method and device
CN111815318A (en) * 2020-06-17 2020-10-23 衡水海博云科技有限公司 Equipment, system and method for aggregated payment

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