CN111861687B - Accounting method and system based on blockchain - Google Patents
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- CN111861687B CN111861687B CN202010537066.XA CN202010537066A CN111861687B CN 111861687 B CN111861687 B CN 111861687B CN 202010537066 A CN202010537066 A CN 202010537066A CN 111861687 B CN111861687 B CN 111861687B
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Abstract
The invention discloses a block chain-based accounting method and system, which comprises the steps of generating a private key, a public key and an inquiry address of a user terminal through an accounting terminal, transmitting the private key and the inquiry address to the user terminal, and transmitting the public key to an accounting terminal. And then the user end encrypts the first bill data to be input, writes the encrypted first bill data into the blockchain system, then the accounting end decrypts the first bill data according to the first public key, performs accounting to obtain first accounting data, writes the first accounting data into the blockchain system again, and finally the user end inquires the corresponding account book data according to the inquiry address. The invention can improve the accuracy, efficiency and credibility of financial accounting through the data non-falsifiability of the blockchain technology.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a billing method and system based on a blockchain.
Background
Enterprise billing is a conventional process for normal operation of an enterprise, and the traditional billing mode is manual billing. Even in today's big data age, there are still many problems with just presenting the manually billed portion in software. For example, documents submitted by the 1 st, accounting customers often change, resulting in repeated work for accounting. 2. Small businesses pick up multiple financial services companies and account-crediting clients have difficulty handing over financial accounts. 3. Accounting is not standard, and the account book is adjusted at will. 4. Corresponding to comprehensive enterprises, multi-source business is not integrated, and data of each module is not uniform, so that billing is disordered. The business of enterprises is complicated, the auditing work is enlarged, and the billing is slow.
Disclosure of Invention
The embodiment of the invention provides a block chain accounting method and a block chain accounting system, which improve the accuracy, efficiency and credibility of financial accounting.
The embodiment of the invention provides a billing method based on a blockchain, which is applicable to a billing system based on the blockchain, and comprises the following steps: the system comprises a user end, an accounting end, a billing end, a blockchain system and a blockchain network; the user end, the accounting end and the billing end are respectively connected with the blockchain system through the blockchain network;
The user terminal initiates a registration request to the billing terminal, so that the billing terminal generates a first private key of the user terminal on the blockchain system according to the registration request, and generates a first public key and a query address according to the first private key;
The user side receives the first private key and the query address fed back by the accounting side, encrypts bill data information according to the first private key to obtain first bill data, and writes the first bill data into the blockchain system through the blockchain network;
The accounting terminal receives the first public key sent by the billing terminal, and according to the first public key, the first bill data is called on the blockchain system, and then after the first bill data is verified, the first bill data is subjected to electronic signature to obtain first billing data;
the accounting end encrypts the first accounting data according to the first public key and then issues the encrypted first accounting data to the blockchain system;
and the user terminal inquires the encrypted billing data corresponding to the user terminal on the blockchain system according to the inquiry address, decrypts the added billing data according to the first private key, and acquires the corresponding account book data of the user terminal.
Further, the accounting terminal generates a first private key of the user terminal on the blockchain system according to the registration request, and generates a first public key and a query address according to the first private key, specifically:
The billing terminal generates the first private key according to a random algorithm and generates the first public key from the first private key according to an elliptic algorithm;
The first public key is embedded into the query address when the query address is generated.
Further, the user side encrypts bill data information according to the first private key to obtain first bill data, and writes the first bill data into the blockchain system through the blockchain network, specifically:
The user side converts the bill data information to be input into electronic information, and encrypts the electronic information through a first random code;
the user terminal encrypts the first random code according to the first private key;
The user side writes the encrypted first bill data and the encrypted first random code into the blockchain system through the blockchain network.
Further, the accounting terminal invokes the first bill data on the blockchain system according to the first public key, and then performs electronic signature on the first bill data after the first bill data is verified, so as to obtain first accounting data, which specifically is:
The accounting terminal invokes the encrypted first bill data and the encrypted first random code on the blockchain according to the first public key;
the accounting terminal decrypts the encrypted first random code according to the first public key to obtain the first random code, and decrypts the encrypted first bill data through the obtained first random code to obtain the first bill data;
and after the accounting end receives the verification instruction, carrying out accounting signature on the first bill data to obtain first accounting data.
Accordingly, the present invention provides a blockchain-based billing system comprising: the system comprises a user end, an accounting end, a billing end, a blockchain system and a blockchain network; the user end, the accounting end and the billing end are respectively connected with the blockchain system through the blockchain network;
The billing system performs a blockchain-based billing method in accordance with the present invention.
Further, the blockchain system comprises blockchain nodes which are gradually increased in a chain generation mode, and the blockchain nodes are connected in a chain type;
The blockchain node is used for publishing related information interacted by the user side, the accounting side and the billing side and data information of each adjacent node in at least one target adjacent node to the blockchain network.
Further, the blockchain network node includes: user nodes, accounting nodes, response nodes and information identification nodes;
the user node is used for the user terminal to perform information interaction on the blockchain system;
the accounting node is used for the accounting end to conduct information interaction on the blockchain system;
the accounting node is used for the accounting end to carry out information interaction on the blockchain system;
the response node is used for feeding back information sent by the accounting node to the user node;
The information identifying node is configured to convert information of the user node and the billing node so that the user side and the billing side can identify each other's information.
Further, the blockchain system further includes: a blockchain bottom platform;
the blockchain bottom layer platform is any one of a platform adopting HYPERLEDGER blockchain technology or an Ethernet blockchain bottom layer platform.
Further, the platform adopting HYPERLEDGER blockchain technology is a super ledger technology platform of Linux foundation open source.
Compared with the prior art, the billing method and the billing system based on the blockchain disclosed by the embodiment of the invention generate the private key, the public key and the query address of the user terminal through the billing terminal, then send the private key and the query address to the user terminal, and send the public key to the accounting terminal. And then the user end encrypts the first bill data to be input, writes the encrypted first bill data into the blockchain system, then the accounting end decrypts the first bill data according to the first public key, performs accounting to obtain first accounting data, writes the first accounting data into the blockchain system again, and finally the user end inquires the corresponding account book data according to the inquiry address. The invention can improve the accuracy, efficiency and credibility of financial accounting through the data non-falsifiability of the blockchain technology.
Drawings
FIG. 1 is a schematic diagram illustrating the architecture of one embodiment of a blockchain-based billing system provided by the present invention;
FIG. 2 is a flow chart of one embodiment of a blockchain-based billing method provided by the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating the architecture of one embodiment of a blockchain-based billing system provided by the present invention. As shown in fig. 1, the system includes: client 1, accounting end 2, accounting end 3, blockchain system 4 and blockchain network 5. The client 1, the accounting end 2 and the accounting end 3 are respectively connected with the blockchain system 4 through a blockchain network 5.
In this embodiment, the blockchain system 4 includes blockchain nodes that are progressively increased by way of chaining, and the blockchain nodes are connected in a chain. The blockchain node is used for publishing related information interacted by the user terminal 1, the accounting terminal 2 and the accounting terminal 3 and data information of each adjacent node in at least one target adjacent node into the blockchain network. The data information includes key information and address information.
In this embodiment, the blockchain network node includes: user nodes, accounting nodes, response nodes and information identification nodes.
The user terminal 1, the accounting terminal 2 and the billing terminal 3 perform information interaction on the blockchain system 4 through the blockchain network 5, wherein the user node transmits data information of the server node through the blockchain network 5. The response node is used for feeding back information sent by the accounting node to the user node; the information identifying node is used to convert the information of the user node and the accounting node so that the user side 1 and the accounting side 3 can identify each other's information.
In this embodiment, each user terminal 1 registers its own account number on the blockchain system 4 to generate a corresponding user node, and at the same time, the accounting terminal 2 and the billing terminal 3 also have account numbers and nodes on the blockchain system 4. The blockchain system 4 can facilitate the data interaction between the user terminal 1 and the billing terminal 3 by setting the response node and the information identification node without carrying out corresponding information response and identification privately, thereby improving the data response and transmission speed, reducing the performance requirements on hardware equipment and improving the expansibility of the scheme.
As an example of this embodiment, the blockchain system 4 also includes a blockchain bottom platform. The blockchain bottom layer platform is any one of a platform adopting HYPERLEDGER blockchain technology or an Ethernet blockchain bottom layer platform.
As an example of this embodiment, a platform employing HYPERLEDGER blockchain technology may be, but is not limited to, a super ledger technology platform that is open to the Linux foundation.
Accordingly, under the structure of the billing system of the present embodiment, referring to the blockchain-based billing method shown in fig. 2, the method includes the steps of:
Step 201: the user terminal initiates a registration request to the accounting terminal, so that the accounting terminal generates a first private key of the user terminal on the blockchain system according to the registration request, and generates a first public key and a query address according to the first private key.
In this embodiment, a user terminal initiates a registration request to a billing terminal, and after the billing terminal receives the request, the billing terminal generates a first private key according to a random algorithm, and generates a first public key according to an elliptic algorithm from the first private key; the first public key is embedded in the query address when the query address is generated.
In more detail, the accounting terminal 3 randomly selects 256 digits and selects a random entropy source according to the SHA256 algorithm for the selected data. If the first private key is made to display a 64-bit number, hexadecimal identification is employed, and if the first private key is made to display a private key with bitcoin, dumpprivkey identification is employed. And generating a first public key from the first private key according to the following formula: k=k×g. Where K is the private key, G is the discrete constant point, and K is the public key. And finally, forming a query address required by the user side according to the public key, wherein the query address A=RIPEMD 160 (SHA 256 (K)), wherein K is the public key, and the query address A is formed into a 20-byte address through the Base 58.
Step 202: the user side receives a first private key and a query address fed back by the billing side, encrypts bill data information according to the first private key to obtain first bill data, and writes the first bill data into the blockchain system through a blockchain network.
In this embodiment, step 202 specifically includes:
the user side converts the bill data information to be input into electronic information and encrypts the electronic information through a first random code;
the user terminal encrypts a first random code according to a first private key;
And the user side writes the encrypted first bill data and the encrypted first random code into the blockchain system through the blockchain network.
In this embodiment, the first random code is generated by the user terminal, encrypted by the first private key, and then distributed on the blockchain.
In this embodiment, the data to be entered may include, but is not limited to: financial report data, invoice data, and the like.
In this embodiment, in step 202, the encryption mode using the first private key encryption is an asymmetric encryption mode.
Step 203: and the accounting end receives the first public key sent by the accounting end, and according to the first public key, the accounting end invokes the first bill data on the blockchain system, and then carries out electronic signature on the first bill data after the first bill data is verified, so as to obtain first accounting data.
In this embodiment, the accounting end receives the first public key sent by the accounting end, and queries the corresponding user end according to the first public key, so as to invoke the encrypted first document data and the encrypted first random code on the blockchain. The accounting end decrypts the encrypted first random code according to the first public key to obtain a first random code, and decrypts the encrypted first bill data through the obtained first random code to obtain first bill data.
And after the accounting end receives the verification instruction, carrying out accounting signature on the first bill data to obtain first accounting data. The accounting signature is an electronic signature, and the accounting end can account the first bill data and electronically sign the data after accounting to form first accounting data.
Step 204: and the accounting end encrypts the first accounting data according to the first public key and then distributes the first accounting data to the blockchain system.
In this embodiment, the encryption mode in step 204 is asymmetric encryption, and the decryption may be performed by the first private key corresponding to the first public key.
In this embodiment, after accounting is successful and distributed to the blockchain system, the blockchain system will send notification information to the client to inform the accounting progress. The first accounting data can be placed on a query address or an address corresponding to an accounting end, but is not limited to the first accounting data, so that the user end can query conveniently.
Step 205: and the user terminal inquires the encrypted billing data corresponding to the user terminal on the blockchain system according to the inquiry address, and decrypts the added billing data according to the first private key to obtain the corresponding account book data of the user terminal.
In this embodiment, the account book data may include, but is not limited to, first billing data and historical billing data for the present billing. The user side can inquire all the billing data of the user side.
In summary, the invention can effectively solve the problems of data security risks and management in ticket collection, report, verification, audit and accounting faced by the enterprise billing system, has the advantages of high mutual credibility, non-falsification of data, traceability of data, interconnection and intercommunication, distributed storage, decentralization and the like, is effectively applied to enterprise financial tax accounting business, and mainly comprises the following points:
1. Confirming a unique digital identity of a user through a key technology in a block chain;
2. through an encryption algorithm in the blockchain, the financial accounting data content is ensured not to be leaked and illegally utilized;
3. a safe and reliable mutual trust channel is provided through a block chain, so that the problem of data island is solved;
4. The authenticity and the integrity of financial accounting data are ensured through the non-tamperable characteristic of the data of the blockchain;
5. the requirements of business supervision and examination are met through the data traceability characteristic of the block chain;
6. and the file distributed storage on the block chain avoids the single-point problem and ensures that the data is never lost.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (9)
1. A blockchain-based billing method, the billing method being adapted for a blockchain-based billing system, the billing system comprising: the system comprises a user end, an accounting end, a billing end, a blockchain system and a blockchain network; the user end, the accounting end and the billing end are respectively connected with the blockchain system through the blockchain network;
The user terminal initiates a registration request to the billing terminal, so that the billing terminal generates a first private key of the user terminal on the blockchain system according to the registration request, and generates a first public key and a query address according to the first private key;
The user side receives the first private key and the query address fed back by the accounting side, encrypts bill data information according to the first private key to obtain first bill data, and writes the first bill data into the blockchain system through the blockchain network;
The accounting terminal receives the first public key sent by the billing terminal, and according to the first public key, the first bill data is called on the blockchain system, and then after the first bill data is verified, the first bill data is subjected to electronic signature to obtain first billing data;
the accounting end encrypts the first accounting data according to the first public key and then issues the encrypted first accounting data to the blockchain system;
and the user terminal inquires the encrypted billing data corresponding to the user terminal on the blockchain system according to the inquiry address, decrypts the added billing data according to the first private key, and acquires the corresponding account book data of the user terminal.
2. The blockchain-based billing method of claim 1 wherein the billing end generates a first private key of the user end on the blockchain system according to the registration request and generates a first public key and a query address according to the first private key, specifically:
The billing terminal generates the first private key according to a random algorithm and generates the first public key from the first private key according to an elliptic algorithm;
The first public key is embedded into the query address when the query address is generated.
3. The blockchain-based accounting method of claim 1, wherein the user side encrypts bill data information according to the first private key to obtain first bill data, and writes the first bill data into the blockchain system through the blockchain network, specifically:
The user side converts the bill data information to be input into electronic information, and encrypts the electronic information through a first random code;
the user terminal encrypts the first random code according to the first private key;
The user side writes the encrypted first bill data and the encrypted first random code into the blockchain system through the blockchain network.
4. The blockchain-based billing method of claim 3 wherein the accounting terminal invokes the first bill data on the blockchain system according to the first public key, and electronically signs the first bill data after verification of the first bill data to obtain first billing data, specifically:
The accounting terminal invokes the encrypted first bill data and the encrypted first random code on the blockchain according to the first public key;
the accounting terminal decrypts the encrypted first random code according to the first public key to obtain the first random code, and decrypts the encrypted first bill data through the obtained first random code to obtain the first bill data;
and after the accounting end receives the verification instruction, carrying out accounting signature on the first bill data to obtain first accounting data.
5. A blockchain-based billing system, the billing system comprising: the system comprises a user end, an accounting end, a billing end, a blockchain system and a blockchain network; the user end, the accounting end and the billing end are respectively connected with the blockchain system through the blockchain network;
The billing system performs the blockchain-based billing method of any of claims 1 to 4.
6. The blockchain-based billing system of claim 5 wherein the blockchain system includes blockchain nodes that progressively increase in a chain-generated manner and the blockchain nodes are connected in a chain;
The blockchain node is used for publishing related information interacted by the user side, the accounting side and the billing side and data information of each adjacent node in at least one target adjacent node to the blockchain network.
7. The blockchain-based billing system of claim 6 wherein the blockchain network node comprises: user nodes, accounting nodes, response nodes and information identification nodes;
the user node is used for the user terminal to perform information interaction on the blockchain system;
the accounting node is used for the accounting end to conduct information interaction on the blockchain system;
the accounting node is used for the accounting end to carry out information interaction on the blockchain system;
the response node is used for feeding back information sent by the accounting node to the user node;
The information identifying node is configured to convert information of the user node and the billing node so that the user side and the billing side can identify each other's information.
8. The blockchain-based billing system of claim 7, wherein the blockchain system further comprises: a blockchain bottom platform;
the blockchain bottom layer platform is any one of a platform adopting HYPERLEDGER blockchain technology or an Ethernet blockchain bottom layer platform.
9. The blockchain-based billing system of claim 8, wherein the platform employing HYPERLEDGER blockchain technology is a Linux foundation open-source super ledger technology platform.
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| CN105024815A (en) * | 2014-04-22 | 2015-11-04 | 江苏韦度一号信息科技有限公司 | Office network file digit encryption transmission |
| CN110135964A (en) * | 2019-05-21 | 2019-08-16 | 山东浪潮通软信息科技有限公司 | A kind of financial accounting method based on block chain technology |
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| CN108600199A (en) * | 2018-04-08 | 2018-09-28 | 国网浙江省电力有限公司电力科学研究院 | A kind of transmission method and system of the Audit data based on block chain |
| 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 |
| CN109492431A (en) * | 2018-10-31 | 2019-03-19 | 国网河南省电力公司信息通信公司 | The storage method and its system and electronic equipment of financial data |
| CN109711836A (en) * | 2018-11-15 | 2019-05-03 | 远光软件股份有限公司 | A kind of storage method of transaction, storage network and electronic equipment |
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| CN105024815A (en) * | 2014-04-22 | 2015-11-04 | 江苏韦度一号信息科技有限公司 | Office network file digit encryption transmission |
| CN110135964A (en) * | 2019-05-21 | 2019-08-16 | 山东浪潮通软信息科技有限公司 | A kind of financial accounting method based on block chain technology |
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