CN109598148B - Invoice management method and system based on block chain - Google Patents
Invoice management method and system based on block chain Download PDFInfo
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Abstract
The invention discloses an invoice management method and system based on a block chain, which comprises the following steps: the invoice entry system which can be used by both parties is provided, so that the accuracy of the entered information of financial staff of both parties in the entry process is ensured; the management system which can ensure that the input invoice information can not be falsified is provided, and the correctness and the integrity of the invoice information in the system are ensured. The invention is suitable for the financial invoice management process, can ensure that the invoice information is more real and effective, and can record the invoice information and count the invoice information result in a transparent and open manner on the management layer.
Description
Technical Field
The invention belongs to the technical field of block chains, and particularly relates to an invoice management method and system based on a block chain.
Background
In a traditional financial system, the system generally comprises an accounting processing module, a report processing module, a fixed asset accounting module, a wage accounting module and the like, wherein the accounting processing module comprises an invoice recording and inquiring function and is used for accounting and managing internal and external funds of an enterprise.
However, the conventional financial system described above has two problems: firstly, the searching error is time-consuming, in the accounting, if a certain link is wrong and financial staff cannot find the error in time during rechecking, a long time is needed to search the error afterwards, and the situation is easily caused between a main company and a subsidiary company, so that the financial error is caused; secondly, there is a risk of human tampering, and a user with a higher authority in the system may maliciously tamper with data, thereby causing huge economic loss.
Disclosure of Invention
In view of the above drawbacks or needs for improvement of the conventional financial system, the present invention provides a block chain based invoice management method and system, which aims to reduce errors in the entry process in the existing financial system and solve the problem of human tampering.
In order to achieve the above object, in a first aspect, the present invention provides a block chain-based invoice management method, including:
(1) user registration:
the method comprises the steps that a block chain node receives a joining request sent by a user, wherein the joining request comprises information of the user, and the information of the user comprises a node name, a node number and node public key information;
the block chain node checks the information of the user, if the information passes the checking, a certificate is returned to the user, and the user information is identified through an identification mechanism and then recorded in a block chain; if the audit is not passed, returning a prompt that the audit is not passed to the user;
(2) inputting user invoice information:
the block chain link point receives a request for writing invoice information sent by a user, the request for writing invoice information is encrypted through a certificate of the user, and the request for writing invoice information comprises invoice information to be written;
the block chain link point carries out integrity verification and consistency verification on invoice information to be written, respectively verifies whether the invoice information is complete and whether the invoice information conflicts with effective invoice information recorded in the block chain, if the invoice information passes the verification, the invoice information is written into the block chain after being identified by an identification mechanism, if the invoice information is incomplete and the verification fails, a prompt that the invoice information is incomplete is returned to a user, and if the invoice information conflicts with the effective invoice information recorded in the block chain and the verification fails, a prompt that the invoice information conflicts is returned to the user;
if the user receives the prompt that the invoice information is incomplete, the user modifies the invoice information and sends a request for writing the invoice information to the block link points again;
if the user receives the prompt that the invoice information conflicts, the user sends a request for deleting the invoice information to the block link points, the request for deleting the invoice information is encrypted through a certificate of the user, and the request for deleting the invoice information comprises the invoice information to be deleted;
and the block link node receives a request for deleting the invoice information sent by a user, carries out authority verification on the request for deleting the invoice information, marks the specified invoice information to be deleted as invalid if the request for deleting the invoice information passes the verification, and otherwise, returns a prompt of insufficient authority to the user.
It will be appreciated that the user referred to in the present invention may be any person employing the invoice management method or system, such as a financial staff of a certain entity.
In an optional example, the invoice information includes: invoice number, invoice code, invoice line number and amount information.
In an optional example, if the user receives a prompt that the authority is insufficient, the request for deleting the invoice information is sent to the block link point again after the certificate information in the request for deleting the invoice information is modified.
In an optional example, the method further comprises: and configuring the information of the user before the joining request sent by the user.
In a second aspect, the present invention provides a block chain based invoice management system, including:
the system comprises a registration module, a node sending module and a sending module, wherein the registration module is used for receiving a joining request sent by a user, the joining request comprises information of the user, and the information of the user comprises a node name, a node number and node public key information; and auditing the information of the user, if the auditing is passed, returning a certificate to the user, and recording the user information after consensus through a consensus mechanism into a block chain; if the audit is not passed, returning a prompt that the audit is not passed to the user;
the system comprises a user invoice information input module, a user invoice information input module and a data processing module, wherein the user invoice information input module is used for receiving an invoice information writing request sent by a user, the invoice information writing request is encrypted through a certificate of the user, and the invoice information writing request comprises invoice information to be written; and carrying out integrity verification and consistency verification on the invoice information to be written, respectively verifying whether the invoice information is complete and whether the invoice information conflicts with effective invoice information recorded in the block chain, if the invoice information passes the verification, writing the invoice information into the block chain after being commonly identified by a common identification mechanism, if the verification fails due to incomplete invoice information, returning a prompt that the invoice information is incomplete to the user, and if the verification fails due to conflict between the invoice information and the effective invoice information recorded in the block chain, returning a prompt that the invoice information conflicts with the user;
the user invoice information input module is used for receiving a request for deleting invoice information sent by a user, carrying out authority verification on the request for deleting the invoice information, marking the specified invoice information to be deleted as invalid if the request for deleting the invoice information passes the verification, and otherwise, returning a prompt of insufficient authority to the user; the request for deleting the invoice information is sent after the user receives the prompt that the invoice information conflicts, the request is encrypted through the certificate of the user, and the request for deleting the invoice information comprises the invoice information to be deleted.
In an optional example, the invoice information includes: invoice number, invoice code, invoice line number and amount information.
In an optional example, the registration module is configured to configure the information of the user before the join request is sent by the user.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1. the invention can solve the problem of man-made entry error existing in the existing financial system: the invention stores the invoice information into the block chain based on the management mechanism of the block chain node, and compares the invoice information input each time with the invoice information in the block chain, thereby solving the problem of manual input error.
2. The invention can record the invoice data into the blockchain, and the blockchain has the characteristic of being not tampered, thereby solving the problem of malicious data tampering.
3. The invoice management method and system based on the block chain can realize sharing of invoice information among users based on the block chain, can realize an invoice management mode between two cooperating parties based on the block chain sharing, and can more conveniently manage invoices, realize win-win and reduce audit cost.
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FIG. 1 is a flow chart of a block chain based invoice management method provided by the present invention;
FIG. 2 is an architecture diagram of a blockchain-based invoice management system provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
According to an aspect of the present invention, as shown in fig. 1, the block chain-based invoice management method provided by the present invention includes the following steps:
(1) a new organization applies for joining the system through a request sent by a client to a block chain CA node, wherein the request comprises information of the new organization;
specifically, the newly organized information includes a node name, a node number, and a node public key. The organization referred to in the present invention is referred to as a user, and will not be described in detail below.
It should be noted that the method of the present invention further includes setting configuration information of the new organization before the step (1);
(2) the block chain CA node audits the new organization information, if the audit is passed, a certificate is sent to the block chain CA node, the block chain link node records the organization information into the block chain after the organization information is identified by a common identification mechanism (PBFT, kafka and the like), otherwise, a prompt that the information audit is not passed is returned, and the process is ended;
(3) the financial staff of the first party sends a request to the block chain link through the client to apply for writing invoice information, and the request is encrypted by a certificate of the first party;
(4) carrying out integrity verification on the invoice information by the block chain nodes, after the verification is passed, writing the invoice information into the block chain after the invoice information is identified by a common identification mechanism (PBFT, kafka and the like), and if not, returning a prompt that the invoice information is incomplete, and returning to the step (3);
(5) the financial staff of the second party sends a request to the block chain link through the client to apply for writing invoice information, and the request is encrypted by a certificate of the financial staff;
(6) the block chain node carries out invoice information consistency verification, the verification comprises whether the invoice information conflicts with effective invoice information existing in the system or not, the invoice information is identified through a common identification mechanism (PBFT, kafka and the like) and then written into the block chain after passing the verification, the process is finished, and otherwise, a prompt that the invoice information conflicts is returned;
(7) if the input information of the party B is wrong, the financial staff of the party B modifies the input information and returns to the step (5), otherwise, the financial staff of the party A sends a request to the block chain link point through the client to apply for deleting the invoice information, and the request is encrypted by the certificate of the financial staff;
(8) and (4) the block link point verifies the authority of the message, after the message passes the verification, the specified invoice information is marked as invalid, and the step (3) is returned, otherwise, the returned authority is insufficient, and the step (7) is returned.
Preferably, the method further comprises setting configuration information of the new organization prior to step (1).
Preferably, the invoice information includes information of invoice number, invoice code, invoice line number and amount.
According to another aspect of the present invention, there is provided a blockchain-based invoice management system, which is provided at a blockchain node, the system including:
the system comprises a first module, a second module and a third module, wherein the first module is used for receiving a request for joining the system from a client, and the request comprises information of a new organization;
the second module is used for auditing the new organization information, if the new organization information passes the auditing, a certificate is sent to the new organization information, the block chain link point records the organization information into the block chain after the organization information is identified by a common identification mechanism (PBFT, kafka and the like), otherwise, a prompt that the information auditing is not passed is returned, and the process is ended;
the third module is used for receiving a request sent by the client to the block link points, applying for writing invoice information and encrypting the request by a certificate of the request;
the fourth module is used for verifying the integrity of the invoice information, writing the invoice information into the block chain after the invoice information is verified to pass through a consensus mechanism (PBFT, kafka and the like), and otherwise, returning a prompt that the invoice information is incomplete and returning to the third module;
and the fifth module is used for verifying the consistency of the invoice information of the block link points, verifying whether the invoice information conflicts with the effective invoice information existing in the system or not, after the verification is passed, writing the invoice information into the block chain after the invoice information is commonly identified through a common identification mechanism (PBFT, kafka and the like), finishing the process, and otherwise, returning a prompt that the invoice information conflicts.
The sixth module is used for judging whether the first party input information is wrong or the second party input information is wrong, if the first party input information is wrong, the financial staff of the second party modifies the input information and returns to the fifth module, and if the first party input information is wrong, the financial staff of the first party sends a request to the block chain link point through the client to apply for deleting the invoice information, and the request is encrypted by a certificate of the financial staff of the first party;
and the seventh module is used for carrying out authority verification on the message received by the sixth module, marking the designated invoice information as invalid after the verification is passed, and returning to the third module, otherwise, returning to the sixth module if the returned authority is insufficient.
In another embodiment, the present invention provides another block chain-based invoice management system, which specifically includes:
the system comprises a registration module, a node sending module and a sending module, wherein the registration module is used for receiving a joining request sent by a user, the joining request comprises information of the user, and the information of the user comprises a node name, a node number and node public key information; and auditing the information of the user, if the auditing is passed, returning a certificate to the user, and recording the user information after consensus through a consensus mechanism into a block chain; if the audit is not passed, returning a prompt that the audit is not passed to the user;
the system comprises a user invoice information input module, a user invoice information input module and a data processing module, wherein the user invoice information input module is used for receiving an invoice information writing request sent by a user, the invoice information writing request is encrypted through a certificate of the user, and the invoice information writing request comprises invoice information to be written; and carrying out integrity verification and consistency verification on the invoice information to be written, respectively verifying whether the invoice information is complete and whether the invoice information conflicts with effective invoice information recorded in the block chain, if the invoice information passes the verification, writing the invoice information into the block chain after being commonly identified by a common identification mechanism, if the verification fails due to incomplete invoice information, returning a prompt that the invoice information is incomplete to the user, and if the verification fails due to conflict between the invoice information and the effective invoice information recorded in the block chain, returning a prompt that the invoice information conflicts with the user;
the user invoice information input module is used for receiving a request for deleting invoice information sent by a user, carrying out authority verification on the request for deleting the invoice information, marking the specified invoice information to be deleted as invalid if the request for deleting the invoice information passes the verification, and otherwise, returning a prompt of insufficient authority to the user; the request for deleting the invoice information is sent after the user receives the prompt that the invoice information conflicts, the request is encrypted through the certificate of the user, and the request for deleting the invoice information comprises the invoice information to be deleted.
Specifically, the invoice information includes: invoice number, invoice code, invoice line number and amount information.
Specifically, the registration module is configured to configure information of the user before a join request sent by the user.
The overall thought of the invention is that the non-repudiation and traceability characteristics of the block chain are utilized, the correctness of the invoice departure information is rapidly verified in the invoice entry process, financial staff is prompted to modify the invoice departure information in case of errors, and operations such as entry information and modification information can be permanently stored, so that the invoice information is prevented from being maliciously tampered.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A block chain based invoice management method is applied to a financial system used by all partners simultaneously, and is characterized by comprising the following steps:
(1) user registration:
the method comprises the steps that a block chain node receives a joining request sent by a user, wherein the joining request comprises information of the user, and the information of the user comprises a node name, a node number and node public key information; the user comprises financial staff of each partner;
the block chain node checks the information of the user, if the information passes the checking, a certificate is returned to the user, and the user information is identified through an identification mechanism and then recorded in a block chain; if the audit is not passed, returning a prompt that the audit is not passed to the user;
(2) inputting user invoice information:
the block chain link point receives a request for writing invoice information sent by a user, the request for writing invoice information is encrypted through a certificate of the user, and the request for writing invoice information comprises invoice information to be written;
the block chain link point carries out integrity verification and consistency verification on invoice information to be written, respectively verifies whether the invoice information is complete and whether the invoice information conflicts with effective invoice information recorded in the block chain, if the invoice information passes the verification, the invoice information is written into the block chain after being identified by an identification mechanism, if the invoice information is incomplete and the verification fails, a prompt that the invoice information is incomplete is returned to a user, and if the invoice information conflicts with the effective invoice information recorded in the block chain and the verification fails, a prompt that the invoice information conflicts is returned to the user;
if the user receives the prompt that the invoice information is incomplete, the user modifies the invoice information and sends a request for writing the invoice information to the block link points again;
if the user receives the prompt that the invoice information conflicts, judging whether the invoice information to be input at present is wrong, if so, modifying the invoice information by the user, and sending a request for writing the invoice information to the block link point again; otherwise, the user who uploads the wrong invoice information sends a request for deleting the invoice information to the block link point, the request for deleting the invoice information is encrypted through the certificate of the user who uploads the wrong invoice information, and the request for deleting the invoice information comprises the invoice information to be deleted;
and the block link point receives a request for deleting the invoice information sent by a user uploading the error invoice information, carries out authority verification on the request for deleting the invoice information, marks the specified invoice information to be deleted as invalid if the request passes the verification, and otherwise returns a prompt of insufficient authority to the user uploading the error invoice information.
2. The blockchain-based invoice management method of claim 1, wherein the invoice information includes: invoice number, invoice code, invoice line number and amount information.
3. The block chain based invoice management method of claim 1, wherein if the user receives a prompt of insufficient authority, the request for deleting invoice information is sent to the block chain node again after the certificate information in the request for deleting invoice information is modified.
4. The blockchain-based invoice management method of claim 1, further comprising: and configuring the information of the user before the joining request sent by the user.
5. A block chain based invoice management system is applied to a financial system used by all partners simultaneously, and is characterized by comprising the following steps:
the system comprises a registration module, a node sending module and a sending module, wherein the registration module is used for receiving a joining request sent by a user, the joining request comprises information of the user, and the information of the user comprises a node name, a node number and node public key information; and auditing the information of the user, if the auditing is passed, returning a certificate to the user, and recording the user information after consensus through a consensus mechanism into a block chain; if the audit is not passed, returning a prompt that the audit is not passed to the user; the user comprises financial staff of each partner;
the system comprises a user invoice information input module, a user invoice information input module and a data processing module, wherein the user invoice information input module is used for receiving an invoice information writing request sent by a user, the invoice information writing request is encrypted through a certificate of the user, and the invoice information writing request comprises invoice information to be written; and carrying out integrity verification and consistency verification on the invoice information to be written, respectively verifying whether the invoice information is complete and whether the invoice information conflicts with effective invoice information recorded in the block chain, if the invoice information passes the verification, writing the invoice information into the block chain after being commonly identified by a common identification mechanism, if the verification fails due to incomplete invoice information, returning a prompt that the invoice information is incomplete to the user, and if the verification fails due to conflict between the invoice information and the effective invoice information recorded in the block chain, returning a prompt that the invoice information conflicts with the user;
the user invoice information input module is used for receiving a request for deleting invoice information sent by a user, carrying out authority verification on the request for deleting the invoice information, marking the specified invoice information to be deleted as invalid if the request for deleting the invoice information passes the verification, and otherwise, returning a prompt of insufficient authority to the user; the request for deleting the invoice information is sent after the user receives the prompt that the invoice information conflicts, the request is encrypted through the certificate of the user, and the request for deleting the invoice information comprises the invoice information to be deleted.
6. The blockchain-based invoice management system of claim 5, wherein the invoice information includes: invoice number, invoice code, invoice line number and amount information.
7. The blockchain-based invoice management system of claim 5, wherein the registration module is configured to configure the user's information prior to the user's sent join request.
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| CN107451874A (en) * | 2017-07-27 | 2017-12-08 | 武汉天喻信息产业股份有限公司 | Electronic invoice integrated conduct method and system based on block chain |
| WO2018106187A1 (en) * | 2016-12-06 | 2018-06-14 | Vesl Pte. Ltd. | System and method for reducing fraud in trade insurance and financing |
| CN108711099A (en) * | 2018-06-07 | 2018-10-26 | 深圳鑫宏图工业设计有限公司 | A kind of financial system management method, electronic equipment and storage medium |
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| WO2018106187A1 (en) * | 2016-12-06 | 2018-06-14 | Vesl Pte. Ltd. | System and method for reducing fraud in trade insurance and financing |
| CN106952124A (en) * | 2017-03-16 | 2017-07-14 | 北京牛链科技有限公司 | Electronic bill management system and method based on distribution book keeping operation |
| CN107451874A (en) * | 2017-07-27 | 2017-12-08 | 武汉天喻信息产业股份有限公司 | Electronic invoice integrated conduct method and system based on block chain |
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