CN112714095A - Invoice management method and device based on block chain and computer equipment - Google Patents
Invoice management method and device based on block chain and computer equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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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
- G06Q30/00—Commerce
- G06Q30/04—Billing or invoicing
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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
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/12—Accounting
- G06Q40/123—Tax preparation or submission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0407—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the identity of one or more communicating identities is hidden
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The application discloses an invoice management method and device based on a block chain and computer equipment, which are used for solving the technical problem of low invoice management efficiency in the prior art. The method comprises the following steps: the tax node receives at least one invoice receiving request sent by at least one invoicing service node; the tax node performs invoice selling processing on the at least one invoice receiving request according to a time sequence to obtain at least one invoice selling data, and performs identity encryption processing on each invoice selling data in the at least one invoice selling data to obtain at least one encrypted invoice selling data; the tax node sends at least one uplink request of the encrypted invoice selling data to the blockchain system, so that the blockchain system synchronizes the encrypted invoice selling data to all invoicing service nodes corresponding to the blockchain system through a common identification mechanism, and all invoicing service nodes decrypt the encrypted invoice selling data according to the identification information to obtain corresponding invoice selling information.
Description
Technical Field
The present application relates to the field of blockchain technologies, and in particular, to a method and an apparatus for managing invoices based on a blockchain, and a computer device.
Background
In the prior art, invoice management mainly adopts a mode that a tax invoice terminal is connected with tax control equipment terminals of enterprises, namely information is sent to the tax control equipment of the enterprises through a wireless network, when the enterprises need to purchase invoices, the tax control equipment is mainly used for applying for acquiring blank invoices in a tax bureau hall or online, and the tax control equipment can ensure the safety of invoice data.
However, such a method of purchasing bills entails high costs of the tax control equipment for enterprises, and due to the limitation of the storage capacity of the tax control equipment, the number of bills to be purchased at a time is limited, and besides, the distribution of the bills on a plurality of tax control equipment also causes inconvenience for the management of the tax bureau.
Disclosure of Invention
The embodiment of the application provides an invoice management method and device based on a block chain and computer equipment, and aims to solve the technical problem that invoice management efficiency is low in the prior art.
In a first aspect, a block chain based invoice management method is provided, the method including:
the method comprises the steps that a tax node receives at least one invoice receiving request sent by at least one invoicing service node, wherein each invoice receiving request in the at least one invoice receiving request at least comprises identification information of the invoicing service node;
the tax node performs invoice selling processing on the at least one invoice receiving request according to a time sequence to obtain at least one invoice selling data, and performs identity encryption processing on each invoice selling data in the at least one invoice selling data to obtain at least one encrypted invoice selling data;
and the tax node sends an uplink request of the at least one encrypted invoice selling data to a blockchain system, so that the blockchain system synchronizes the encrypted invoice selling data to all invoicing service nodes corresponding to the blockchain system through a common identification mechanism, and the all invoicing service nodes decrypt the encrypted invoice selling data according to the identification information of the service nodes to obtain the corresponding invoice selling information.
In one possible embodiment, the identity encryption processing is performed on each invoice sales data in the at least one invoice sales data to obtain at least one encrypted invoice sales data, and the identity encryption processing includes:
the tax node determines identification information of the at least one billing service node, wherein the identification information of each billing service node in the at least one billing service node is used for uniquely identifying each billing service node;
and the tax node performs identity encryption processing on the at least one invoice selling data based on the identification information of the at least one invoicing service node to obtain at least one encrypted invoice selling data, wherein each encrypted invoice data in the at least one encrypted invoice selling data at least comprises an invoice selling data ciphertext and a selling basic information plaintext.
In one possible embodiment, after sending the uplink request for the at least one encrypted invoice sales data to the blockchain system, the method further comprises:
the tax node acquires invoice receiving state information of the at least one invoicing service node from the block chain system; the invoice receiving state information is used for representing the state that whether the at least one invoicing service node successfully receives the invoices for sale or not according to the invoice receiving storage information and the identification information;
and judging whether the invoice drawing state information of the at least one invoicing service node is the same as the preset information or not so as to determine whether the invoice drawn by the at least one invoicing service node is successful or not.
In a possible embodiment, when determining that the invoice drawing-off status information of the at least one invoicing service node is the same as the predetermined information, the method further comprises:
the tax node acquires invoice balance state information of the at least one invoicing service node from the block chain system so as to monitor invoice use information of the at least one invoicing service node;
the invoice balance information is used for representing the invoice use state determined by the at least one invoicing service node according to the invoice use retention information and the identification information.
In one possible embodiment, the method further comprises:
the tax node comprises a block chain development kit, wherein the block chain development kit at least comprises a user certificate import module, an uplink interface, an on-chain information inquiry interface and an encryption and decryption module;
the system comprises a user certificate import module, a chaining interface, an information inquiry interface, an encryption and decryption module and an invoice selling encryption module, wherein the user certificate import module is used for determining identification information of each invoicing service node in at least one invoicing service node, the chaining interface is used for uploading information processed by the tax node to the block chain system, the information inquiry interface is used for monitoring invoice information of at least one invoicing service node in the block chain system by the tax node, and the encryption and decryption module is used for encrypting the information processed by the tax node based on the identification information of the corresponding invoicing service node and providing decryption processing for the invoice selling encryption information based on the corresponding invoicing service identification information for at least one invoicing service node.
In a second aspect, there is provided a blockchain-based invoice management apparatus, the apparatus comprising:
the receiving unit is used for receiving at least one invoice receiving request sent by at least one invoicing service node by the tax node, wherein each invoice receiving request in the at least one invoice receiving request at least comprises identification information of the invoicing service node;
the processing unit is used for the tax node to perform invoice selling processing on the at least one invoice receiving request according to a time sequence to obtain at least one invoice selling data, and performing identity encryption processing on each invoice selling data in the at least one invoice selling data to obtain at least one encrypted invoice selling data;
and the selling unit is used for sending an uplink request of the at least one encrypted invoice selling data to a blockchain system by the tax node so that the blockchain system synchronizes the encrypted invoice selling data to all invoicing service nodes corresponding to the blockchain system through a consensus mechanism, and the all invoicing service nodes decrypt the encrypted invoice selling data according to the identification information to obtain corresponding invoice selling information.
In a possible implementation, the processing unit is configured to:
the tax node determines identification information of the at least one billing service node, wherein the identification information of each billing service node in the at least one billing service node is used for uniquely identifying each billing service node;
and the tax node performs identity encryption processing on the at least one invoice selling data based on the identification information of the at least one invoicing service node to obtain at least one encrypted invoice selling data, wherein each encrypted invoice data in the at least one encrypted invoice selling data at least comprises an invoice selling data ciphertext and a selling basic information plaintext.
In a possible implementation, the apparatus further comprises a management unit configured to:
the tax node acquires invoice receiving state information of the at least one invoicing service node from the block chain system; the invoice receiving state information is used for representing the state that whether the at least one invoicing service node successfully receives the invoices for sale or not according to the invoice receiving storage information and the identification information;
and judging whether the invoice drawing state information of the at least one invoicing service node is the same as the preset information or not so as to determine whether the invoice drawn by the at least one invoicing service node is successful or not.
In a possible implementation, the apparatus further includes a management unit, further configured to:
the tax node acquires invoice balance state information of the at least one invoicing service node from the block chain system so as to monitor invoice use information of the at least one invoicing service node;
the invoice balance information is used for representing the invoice use state determined by the at least one invoicing service node according to the invoice use retention information and the identification information.
In a possible embodiment, the apparatus is further configured to:
the tax node comprises a block chain development kit, wherein the block chain development kit at least comprises a user certificate import module, an uplink interface, an on-chain information inquiry interface and an encryption and decryption module;
the system comprises a user certificate import module, a chain interface, an information inquiry interface, an encryption and decryption module and an invoice selling encryption module, wherein the user certificate import module is used for determining identification information of each invoicing service node in at least one invoicing service node, the chain interface is used for uploading information processed by the tax node to the block chain system, the chain information inquiry interface is used for monitoring invoice information of at least one invoicing service node in the block chain system by the tax node, and the encryption and decryption module is used for encrypting the information processed by the tax node based on the identification information of the corresponding invoicing service node and providing corresponding invoicing service identification information for at least one invoicing service node to decrypt invoice selling encrypted information.
In a third aspect, a computer device is provided, the computer device comprising:
a memory for storing program instructions;
a processor for calling the program instructions stored in the memory and executing the steps included in any of the methods of the first aspect according to the obtained program instructions.
In a fourth aspect, there is provided a storage medium having stored thereon computer-executable instructions for causing a computer to perform the steps included in any one of the methods of the first aspect.
In a fifth aspect, a computer program product is provided, which, when run on a computer device, enables the computer device to perform the steps comprised in any of the methods of the first aspect.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
in this embodiment of the application, the tax node may process an invoice request sent by any one invoicing service node belonging to the blockchain system to obtain invoice selling data, and then perform encryption processing based on the identification information on the invoice selling data to obtain encrypted invoice selling data. Further, a chaining request for the encrypted invoice selling data is sent to the blockchain, and after the chaining of the encrypted invoice selling data is successful, all invoicing service nodes belonging to the blockchain system can receive the encrypted invoice selling data, so that the corresponding invoicing service nodes decrypt the invoice selling data encrypted by using the invoice selling service node identification information based on the identification information of the corresponding invoicing service nodes. That is to say, in the embodiment of the application, on the basis of realizing the encryption processing of the invoice selling data, the encrypted data can be directly transmitted to the invoicing service node, that is, the invoice selling management of the tax-free control device is realized based on the block chain technology, so that the invoice management efficiency is improved, the cost of the invoicing party is reduced, and the use experience of the invoicing party is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application.
FIG. 1 is a block diagram of a prior art system framework for invoice management;
FIG. 2 is a system framework diagram of invoice management in an embodiment of the present application;
FIG. 3 is a flow chart of a block chain based invoice management method in an embodiment of the present application;
FIG. 4 is a block diagram of block chain based invoice management in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a computer device in an embodiment of the present application;
fig. 6 is another schematic structural diagram of a computer device in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. In the present application, the embodiments and features of the embodiments may be arbitrarily combined with each other without conflict. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
The terms "first" and "second" in the description and claims of the present application and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the term "comprises" and any variations thereof, which are intended to cover non-exclusive protection. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
In the embodiments of the present application, "a plurality" may mean at least two, for example, two, three, or more, and the embodiments of the present application are not limited.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document generally indicates that the preceding and following related objects are in an "or" relationship unless otherwise specified.
Referring to fig. 1, fig. 1 is a block diagram illustrating an invoice management system in the prior art, as shown in fig. 1, when an enterprise needs to receive invoices, can be used for invoicing for the taxpayer end, namely, the invoicing system is used for electrifying the electronic tax bureau and the tax handling hall to apply invoices, then the tax bureau end accepts the invoice receiving request through the value-added tax invoice management system, thereby completing the invoice selling business, distributing the available invoice information (such as invoice code, invoice number segment and other information) for the enterprise, then the distributed invoice information is transmitted to the taxpayer end corresponding to the enterprise through encryption, then the financial staff of the enterprise logs in the invoicing system, the invoicing system needs to be correspondingly connected with the tax control equipment, so that the issued invoice information can be obtained through an invoice downloading function in the invoicing system, and the invoice information is stored in the corresponding tax control equipment. It should be noted that, in practical applications, the tax bureau side corresponds to a plurality of taxpayer sides, and is shown in fig. 1 as a simple example.
Therefore, the existing invoice management mainly uses the tax control equipment to apply for buying blank invoice in a tax bureau hall or online, namely, the invoice is distributed on a plurality of tax control equipment and has the problem of inconvenient management, thereby resulting in lower invoice management efficiency.
In view of this, the embodiment of the present application provides an invoice management method based on a block chain, and an invoice management method of a tax removing control device is implemented through a block chain technology, that is, a tax administration side links invoice receiving states corresponding to each invoicing side, so that the invoicing side can correspondingly obtain corresponding invoice information, thereby achieving invoice management of the tax removing control device, and further improving invoice management efficiency.
After introducing the design concept of the embodiment of the present application, some brief descriptions are provided below for a system block diagram applicable to the technical solution of the block chain based invoice management method in the embodiment of the present application, and it should be noted that the system block diagram described below is only used for illustrating the embodiment of the present application and is not limited thereto. In specific implementation, the technical scheme provided by the embodiment of the application can be flexibly applied according to actual needs.
Referring to fig. 2, the blockchain system in the embodiment of the present application includes tax nodes and billing service nodes, and in a specific implementation, the blockchain system may include 1 tax node and a plurality of billing service nodes. For ease of illustration, one tax node and two invoicing service nodes are illustrated in FIG. 2.
Please refer to fig. 2, the blockchain system in the embodiment of the present application includes a tax node and an opening service node; the system comprises a block chain application SDK (Software Development Kit) for providing a standardized invoice information in-chain interface, an invoice information query and download interface, an invoice balance update interface, an encryption and decryption module and a user certificate import module for realizing identity authentication of a block chain user; the invoice issuing device is used for downloading invoice information from the block chain, realizing an invoice management function, maintaining invoice balance information and distributing a unique invoice code and an invoice number for an invoice receiving request.
In the blockchain system, an intelligent contract realized by a synchronous accounting function aiming at the invoice information can be provided, and particularly, the intelligent contract can control the operation authority and the access authority of the invoice information according to the user identity, namely different types of nodes (such as a tax node and a invoicing service node); that is to say, only the tax node may write the invoice selling data, and other invoicing service nodes may only perform an operation of querying or modifying the state of the existing invoice selling data on the block chain, so as to ensure the original invoice selling management mechanism, further, the tax node or the invoicing service node may perform encryption and decryption processing on the data to be linked based on the encryption and decryption module in the corresponding block chain software development tool using an encryption and decryption algorithm based on the identity.
The technical scheme provided by the embodiment of the application is described in the following with the accompanying drawings of the specification.
Referring to fig. 3, an embodiment of the present application provides a block chain based invoice management method, which may be executed by a server, in a specific implementation process, the server is, for example, a personal computer, a large and medium sized computer, a computer cluster, or the like. The specific flow of the method is described below.
Step 301: the tax node receives at least one invoice receiving request sent by at least one invoicing service node, wherein each invoice receiving request in the at least one invoice receiving request at least comprises identification information of the invoicing service node.
In this embodiment of the present application, when an enterprise corresponding to a billing service node needs to receive an invoice, a financial staff may operate through a terminal device installed with a billing system, that is, a billing device in fig. 2, and the billing device generates an invoice receipt request correspondingly, where the invoice receipt request includes identification information corresponding thereto, and specifically, the identification information may be identity information thereof, such as a device ID, or may also be a corresponding node number, which is not limited in this embodiment of the present application. Then, the billing service node can encrypt the invoice by an encryption and decryption module in a corresponding blockchain application SDK (Software Development Kit), and then send an uplink request to the blockchain system, so as to uplink the invoice utilization request. Further, the tax node may obtain information from the block chain, so as to receive the invoice request sent by the invoicing service node, and specifically, the tax node may decrypt the invoice request based on the identification information of the invoicing service node, so as to obtain the invoice request sent by the invoicing service node.
In a specific implementation process, the block chain application SDK of the billing service node includes a user certificate import module, an encryption/decryption module, an invoice balance update interface, and an information query interface on the chain, where the user certificate import module is configured to determine identity information of an enterprise user corresponding to the billing service node, the encryption/decryption module is configured to encrypt an invoice availability request and decrypt information on a tax node chain based on a user certificate, the invoice balance update interface is configured to perform chain operation on usage state information of an invoice and invoice availability state information of the invoice by the billing service node, and the information query interface on the chain is configured to obtain information on a tax node chain. That is, in the embodiment of the present application, the invoicing service node may modify the invoice usage status corresponding to the invoicing service node on the block chain and query the existing information on the chain. Specifically, the authority control of different nodes on the block chain can be realized through the intelligent contract, namely, the intelligent contract limits that the invoicing service node can only modify the corresponding invoice use information and the existing information on the query chain, and the tax node can write the invoice information.
It should be noted that, in a specific implementation process, the tax node may obtain the invoice receiving requests sent by all the invoicing service nodes of the blockchain system, and specifically, the process that the tax node receives the invoice receiving request sent by any one invoicing service node may be understood as the foregoing process.
Step 302: the tax node performs invoice selling processing on the at least one invoice receiving request according to a time sequence to obtain at least one invoice selling data, and performs identity encryption processing on each invoice selling data in the at least one invoice selling data to obtain at least one encrypted invoice selling data.
In this embodiment of the application, after the tax node receives the invoice receiving request, the invoice selling process may be performed according to a time sequence, for example, if the tax node receives the invoice receiving request sent by the first invoicing service node and the invoice receiving request sent by the second invoicing service node, and the time of the received invoice receiving request of the first invoicing service node is earlier than the time of the invoice receiving request sent by the second invoicing service node, the tax node may process the invoice receiving request sent by the first invoicing service node first and then process the invoice receiving request sent by the second invoicing service node.
Further, after the tax administration management system corresponding to the tax node completes processing of the invoice receiving request, invoice selling data is obtained, then the identification information of the invoicing service node can be determined based on the invoice receiving request, so that identity encryption processing is performed on the invoice selling data based on the identification information of the invoicing service node, and further encrypted invoice selling data is obtained, wherein the encrypted invoice data at least comprises an invoice selling data ciphertext and a selling basic information plaintext.
In the embodiment of the application, the tax node comprises a block chain development kit, wherein the block chain development kit at least comprises a user certificate import module, an uplink interface, an uplink information inquiry interface and an encryption and decryption module; the system comprises a user certificate import module, a chain interface, a linked information inquiry interface, an encryption and decryption module and a block chain system, wherein the user certificate import module is used for determining identification information of each invoicing service node in at least one invoicing service node, the chain interface is used for uploading information processed by the tax node to the block chain system, the linked information inquiry interface is used for monitoring invoice information of at least one invoicing service node in the block chain system by the tax node, and the encryption and decryption module is used for encrypting the information processed by the tax node and decrypting invoice receiving state information and invoice using state of at least one invoicing service node. In a specific implementation process, the encryption and decryption module may perform encryption and decryption processing on the information by using, for example, an Identity-based encryption technology (IBC) technology.
Step 303: the tax node sends at least one uplink request of the encrypted invoice selling data to the blockchain system, so that the blockchain system synchronizes the encrypted invoice selling data to all invoicing service nodes corresponding to the blockchain system through a common identification mechanism, and all invoicing service nodes decrypt the encrypted invoice selling data according to the identification information to obtain corresponding invoice selling information.
In the embodiment of the application, after the tax node processes the invoice receiving request sent by the invoicing service node, the tax node may send an uplink request of encrypted invoice selling data to the blockchain system, and after the encrypted invoice selling data is uplink, the blockchain system may synchronize the encrypted invoice selling data to all invoicing service nodes corresponding to the blockchain system through a common identification mechanism, so that the invoicing service nodes belonging to the blockchain system can decrypt the encrypted invoice selling data explicitly sold to the node on the chain according to their own identification information, and thus the invoicing service node can obtain plaintext information of the invoice selling data and then perform corresponding processing.
In the embodiment of the application, the tax node can acquire invoice drawing state information of at least one invoicing service node from the blockchain system; the invoice receiving state information is used for representing the state that whether the at least one invoicing service node successfully receives the invoices for sale or not according to the invoice receiving storage information and the identification information, and then whether the invoice receiving state information of the at least one invoicing service node is the same as the preset information or not is judged, so that whether the invoices for sale or not successfully received by the at least one invoicing service node can be determined.
In a specific implementation process, the invoicing service platform corresponding to the invoicing service node applies the SDK through the block chain, acquires and decrypts invoice data from the invoicing service node, decrypts the invoice data by using a private key certificate of an invoicing party, then stores the invoice data obtained after decryption into an invoicing device, and changes the state of the invoice data on the chain, namely invoice receiving storage information, into 'received or downloaded' by using the identity of the invoicing party by using the block chain application SDK, so that the tax node can determine whether the invoice received by the invoicing service node is successful according to the invoice receiving storage information on the invoicing service node.
In the embodiment of the application, the tax node acquires the invoice balance state information of at least one invoicing service node from the blockchain system, so that the invoice use information of the at least one invoicing service node is monitored. The invoice balance information is used for representing the invoice use state determined by at least one invoicing service node according to the invoice use retention information and the identification information.
In the specific implementation process, the invoicing party corresponding to the invoicing service node assigns unique invoice codes and numbers to the invoice issuing number through the invoicing device, the invoice balance in the invoicing device is updated, the invoicing device updates the rest available invoice balance of the invoicing party in the block chain through the block chain application SDK, and therefore the tax bureau corresponding to the tax node can inquire the invoice use condition on the chain.
In the embodiment of the application, the problem of data synchronization of business data from the completion of invoice selling by a tax bureau to the invoice issuing and receiving by an invoicing party is solved by using a block chain technology, access authority control of a user on the invoice data on the block chain is controlled according to the identity of the user by adding an IBC technology, the privacy and the safety of the invoice data are guaranteed, and the invoice management requirements of the tax department are met.
Furthermore, based on the block chain technology, the tax node and the billing service node maintain the same invoice information book together, and the book data is backed up at each node, so that the problem of loss of billing data of a billing party caused by damage of the existing tax control equipment is avoided. In addition, invoice information access control based on user identity is realized through intelligent contracts, the privacy safety of invoice data is guaranteed, invoice information can be safely borne without tax control equipment, the cost of invoices is reduced, and the capacity of selling the invoices at a time is not limited. And the invoice information on the block chain has the characteristics of incapability of being tampered, traceable, unreliability and the like, and the tax bureau can carry out whole-process tracking management on the invoice selling, receiving and coding states.
That is to say, the block chain-based invoice management method in the application can reduce the cost of invoicing parties and can sell a large number of invoices at a time on the basis of ensuring the invoice management requirements of the existing tax part, and can monitor and manage all invoicing service nodes belonging to a block chain system, thereby improving the invoice management efficiency.
Based on the same inventive concept, the embodiment of the application provides an invoice management device based on a block chain, and the invoice management device based on the block chain can realize the corresponding function of the invoice management method based on the block chain. The blockchain-based invoice management apparatus may be a hardware structure, a software module, or a hardware structure plus a software module. The invoice management device based on the block chain can be realized by a chip system, and the chip system can be formed by a chip and can also comprise the chip and other discrete devices. Referring to fig. 4, the block chain-based invoice management apparatus includes a receiving unit 401, a processing unit 402, and a selling unit 403.
Wherein:
a receiving unit 401, configured to receive, by a tax node, at least one invoice receiving request sent by at least one invoicing service node, where each invoice receiving request in the at least one invoice receiving request at least includes identification information of the invoicing service node;
a processing unit 402, configured to perform, by the tax node, invoice selling processing on the at least one invoice receipt request according to a time sequence, to obtain at least one invoice selling data, and perform identity encryption processing on each invoice selling data in the at least one invoice selling data to obtain at least one encrypted invoice selling data;
the selling unit 403 is configured to send, by the tax node, an uplink request of the at least one encrypted invoice selling data to the blockchain system, so that the blockchain system synchronizes the encrypted invoice selling data to all invoicing service nodes corresponding to the blockchain system through a consensus mechanism, and the all invoicing service nodes decrypt the encrypted invoice selling data according to the identification information to obtain corresponding invoice selling information.
In a possible implementation, the processing unit 402 is configured to:
the tax node determines identification information of the at least one billing service node, wherein the identification information of each billing service node in the at least one billing service node is used for uniquely identifying each billing service node;
and the tax node performs identity encryption processing on the at least one invoice selling data based on the identification information of the at least one invoicing service node to obtain at least one encrypted invoice selling data, wherein each encrypted invoice data in the at least one encrypted invoice selling data at least comprises an invoice selling data ciphertext and a selling basic information plaintext.
In a possible implementation, the apparatus further comprises a management unit configured to:
the tax node acquires invoice receiving state information of the at least one invoicing service node from the block chain system; the invoice receiving state information is used for representing the state that whether the at least one invoicing service node successfully receives the invoices for sale or not according to the invoice receiving storage information and the identification information;
and judging whether the invoice drawing state information of the at least one invoicing service node is the same as the preset information or not so as to determine whether the invoice drawn by the at least one invoicing service node is successful or not.
In a possible implementation, the apparatus further includes a management unit, further configured to:
the tax node acquires invoice balance state information of the at least one invoicing service node from the block chain system so as to monitor invoice use information of the at least one invoicing service node;
the invoice balance information is used for representing the invoice use state determined by the at least one invoicing service node according to the invoice use retention information and the identification information.
In a possible embodiment, the apparatus is further configured to:
the tax node comprises a block chain development kit, wherein the block chain development kit at least comprises a user certificate import module, an uplink interface, an on-chain information inquiry interface and an encryption and decryption module;
the system comprises a user certificate import module, a chain interface, an information inquiry interface, an encryption and decryption module and an invoice selling encryption module, wherein the user certificate import module is used for determining identification information of each invoicing service node in at least one invoicing service node, the chain interface is used for uploading information processed by the tax node to the block chain system, the chain information inquiry interface is used for monitoring invoice information of at least one invoicing service node in the block chain system by the tax node, and the encryption and decryption module is used for encrypting the information processed by the tax node based on the identification information of the corresponding invoicing service node and providing corresponding invoicing service identification information for at least one invoicing service node to decrypt invoice selling encrypted information.
All the related contents of the steps involved in the embodiment of the block chain based invoice management method shown in fig. 3 can be cited to the functional description of the functional module corresponding to the block chain based invoice management apparatus in the embodiment of the present application, and are not described herein again.
The division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation, and in addition, each functional unit in each embodiment of the present application may be integrated in one processor, may also exist alone physically, or may also be integrated in one unit by two or more units. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
Based on the same inventive concept, an embodiment of the present application further provides a computer device, as shown in fig. 5, the computer device in the embodiment of the present application includes at least one processor 501, and a memory 502 and a communication interface 503, which are connected to the at least one processor 501, a specific connection medium between the processor 501 and the memory 502 is not limited in the embodiment of the present application, a connection between the processor 501 and the memory 502 through a bus 500 is taken as an example in fig. 5, the bus 500 is shown by a thick line in fig. 5, and a connection manner between other components is only schematically illustrated and is not limited. The bus 500 may be divided into an address bus, a data bus, a control bus, etc., and is shown with only one thick line in fig. 5 for ease of illustration, but does not represent only one bus or one type of bus.
In the embodiment of the present application, the memory 502 stores instructions executable by the at least one processor 501, and the at least one processor 501 may execute the steps included in the above-mentioned block chain based invoice management method by executing the instructions stored in the memory 502.
The processor 501 is a control center of the computer device, and can connect various parts of the entire fault detection device by using various interfaces and lines, and perform various functions and process data of the computer device by operating or executing instructions stored in the memory 502 and calling data stored in the memory 502, thereby performing overall monitoring on the computer device. Optionally, the processor 501 may include one or more processing units, and the processor 501 may integrate an application processor and a modem processor, wherein the processor 501 mainly processes an operating system, a user interface, an application program, and the like, and the modem processor mainly processes wireless communication. It will be appreciated that the modem processor described above may not be integrated into the processor 501. In some embodiments, processor 501 and memory 502 may be implemented on the same chip, or in some embodiments, they may be implemented separately on separate chips.
The processor 501 may be a general-purpose processor, such as a Central Processing Unit (CPU), digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.
With reference to the further structural schematic diagram of the computer device shown in fig. 6, the computer device also includes a basic input/output system (I/O system) 601 for facilitating information transfer between the various components within the computer device, and a mass storage device 605 for storing an operating system 602, application programs 603, and other program modules 604.
The basic input/output system 601 comprises a display 606 for displaying information and an input device 607, such as a mouse, keyboard, etc., for a user to input information. Wherein a display 606 and an input device 607 are connected to the processor 501 via a basic input/output system 601 connected to the system bus 500. The basic input/output system 601 may also include an input/output controller for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, an input-output controller may also provide output to a display screen, a printer, or other type of output device.
The mass storage device 605 is connected to the processor 501 through a mass storage controller (not shown) connected to the system bus 500. The mass storage device 605 and its associated computer-readable media provide non-volatile storage for the server package. That is, the mass storage device 605 may include a computer-readable medium (not shown), such as a hard disk or CD-ROM drive.
According to various embodiments of the present application, the computing device package may also be operated by a remote computer connected to the network through a network, such as the Internet. That is, the computing device may be connected to the network 608 via the communication interface 503 coupled to the system bus 500, or may be connected to another type of network or remote computer system (not shown) using the communication interface 503.
In an exemplary embodiment, there is also provided a storage medium comprising instructions, such as a memory 502 comprising instructions, executable by a processor 501 of an apparatus to perform the method described above. Alternatively, the storage medium may be a non-transitory computer readable storage medium, which may be, for example, a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In some possible embodiments, the aspects of the block chain based invoice management method provided in the present application may also be implemented in the form of a program product including program code for causing a computer device to perform the steps in the block chain based invoice management method according to various exemplary embodiments of the present application described above in this specification when the program product is run on the computer device.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A block chain based invoice management method, characterized in that the method comprises:
the method comprises the steps that a tax node receives at least one invoice receiving request sent by at least one invoicing service node, wherein each invoice receiving request in the at least one invoice receiving request at least comprises identification information of the invoicing service node;
the tax node performs invoice selling processing on the at least one invoice receiving request according to a time sequence to obtain at least one invoice selling data, and performs identity encryption processing on each invoice selling data in the at least one invoice selling data to obtain at least one encrypted invoice selling data;
and the tax node sends an uplink request of the at least one encrypted invoice selling data to a blockchain system, so that the blockchain system synchronizes the encrypted invoice selling data to all invoicing service nodes corresponding to the blockchain system through a common identification mechanism, and the all invoicing service nodes decrypt the encrypted invoice selling data according to the identification information to obtain corresponding invoice selling information.
2. The method of claim 1, wherein identity encrypting each of the at least one invoice sales data to obtain at least one encrypted invoice sales data comprises:
the tax node determines identification information of the at least one billing service node, wherein the identification information of each billing service node in the at least one billing service node is used for uniquely identifying each billing service node;
and the tax node performs identity encryption processing on the at least one invoice selling data based on the identification information of the at least one invoicing service node to obtain at least one encrypted invoice selling data, wherein each encrypted invoice data in the at least one encrypted invoice selling data at least comprises an invoice selling data ciphertext and a selling basic information plaintext.
3. The method of claim 2, wherein after sending the uplink request for the at least one encrypted invoice sales data to the blockchain system, the method further comprises:
the tax node acquires invoice receiving state information of the at least one invoicing service node from the block chain system; the invoice receiving state information is used for representing the state that whether the at least one invoicing service node successfully receives the invoices for sale or not according to the invoice receiving storage information and the identification information;
and judging whether the invoice drawing state information of the at least one invoicing service node is the same as the preset information or not so as to determine whether the invoice drawn by the at least one invoicing service node is successful or not.
4. The method of claim 3, wherein when it is determined that the invoice capture status information of the at least one billing service node is the same as the predetermined information, the method further comprises:
the tax node acquires invoice balance state information of the at least one invoicing service node from the block chain system so as to monitor invoice use information of the at least one invoicing service node;
the invoice balance information is used for representing the invoice use state determined by the at least one invoicing service node according to the invoice use retention information and the identification information.
5. The method of any of claims 1-4, wherein the method further comprises:
the tax node comprises a block chain development kit, wherein the block chain development kit at least comprises a user certificate import module, an uplink interface, an on-chain information inquiry interface and an encryption and decryption module;
the system comprises a user certificate import module, a chaining interface, an information inquiry interface, an encryption and decryption module and a data transmission module, wherein the user certificate import module is used for determining identification information of each invoicing service node in at least one invoicing service node, the chaining interface is used for uploading information processed by the tax node to the block chain system, the information inquiry interface is used for monitoring invoice information of at least one invoicing service node in the block chain system by the tax node, and the encryption and decryption module is used for encrypting the information processed by the tax node based on the identification information of the corresponding invoicing service node and providing decryption processing for the invoicing service node based on the corresponding invoicing service identification information to sell the invoice.
6. An invoice management apparatus based on a blockchain, the apparatus comprising:
the receiving unit is used for receiving at least one invoice receiving request sent by at least one invoicing service node by the tax node, wherein each invoice receiving request in the at least one invoice receiving request at least comprises identification information of the invoicing service node;
the processing unit is used for the tax node to perform invoice selling processing on the at least one invoice receiving request according to a time sequence to obtain at least one invoice selling data, and performing identity encryption processing on each invoice selling data in the at least one invoice selling data to obtain at least one encrypted invoice selling data;
and the selling unit is used for sending an uplink request of the at least one encrypted invoice selling data to a blockchain system by the tax node so that the blockchain system synchronizes the encrypted invoice selling data to all invoicing service nodes corresponding to the blockchain system through a consensus mechanism, and the all invoicing service nodes decrypt the encrypted invoice selling data according to the identification information to obtain corresponding invoice selling information.
7. The apparatus as recited in claim 6, said processing unit to:
the tax node determines identification information of the at least one billing service node, wherein the identification information of each billing service node in the at least one billing service node is used for uniquely identifying each billing service node;
and the tax node performs identity encryption processing on the at least one invoice selling data based on the identification information of the at least one invoicing service node to obtain at least one encrypted invoice selling data, wherein each encrypted invoice data in the at least one encrypted invoice selling data at least comprises an invoice selling data ciphertext and a selling basic information plaintext.
8. The apparatus of claim 6, wherein the apparatus is further configured to:
the tax node comprises a block chain development kit, wherein the block chain development kit at least comprises a user certificate import module, an uplink interface, an on-chain information inquiry interface and an encryption and decryption module;
the system comprises a user certificate import module, a chain interface, an information inquiry interface, an encryption and decryption module and an invoice issuing and encrypting module, wherein the user certificate import module is used for determining identification information of each invoicing service node in at least one invoicing service node, the chain interface is used for uploading information processed by the tax node to the block chain system, the chain information inquiry interface is used for monitoring invoice information of at least one invoicing service node in the block chain system by the tax node, and the encryption and decryption module is used for encrypting the information processed by the tax node based on the identification information of the corresponding invoicing service node and providing the invoice issuing encrypted information for at least one invoicing service node based on the corresponding invoicing service node identification information to decrypt invoice issuing encrypted information.
9. A computer device, wherein the computer comprises:
a memory for storing program instructions;
a processor for calling program instructions stored in said memory and for executing the steps comprised in the method of any one of claims 1 to 5 in accordance with the obtained program instructions.
10. A storage medium storing computer-executable instructions for causing a computer to perform the steps comprising the method of any one of claims 1 to 5.
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| CN201911024919.3A CN112714095A (en) | 2019-10-25 | 2019-10-25 | Invoice management method and device based on block chain and computer equipment |
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