CN111597264A - Block chain accounting method and device - Google Patents

Abstract

The invention discloses a blockchain accounting method, comprising: when a new accounting node joins the blockchain to which the current accounting node belongs, determining the hash value corresponding to the blockchain identification of each accounting node, and The locally stored sorting list is updated according to the hash value corresponding to the blockchain identification of each accounting node. The sorting list includes the sequence of hash values corresponding to the blockchain identification of each accounting node in the blockchain. The token is passed to the corresponding accounting node to cause the accounting node currently holding the token to generate a new block. The blockchain method provided by the embodiment of the present invention can make the accounting nodes in the blockchain compete for the accounting right of a new block without searching for a random number that satisfies the hash value through computing power competition, thereby improving the blockchain. Accounting efficiency.

Description

A blockchain accounting method and device

technical field

The invention relates to the technical field of blockchain, in particular to a blockchain accounting method and device.

Background technique

In the blockchain technology, it takes a lot of computing power of the entire blockchain network to find a random number that satisfies the hash value for the accounting node to generate a block, and this calculation itself is meaningless and will affect the blockchain record. Account efficiency.

SUMMARY OF THE INVENTION

To this end, the present invention provides a blockchain accounting method and device to solve the problem in the prior art caused by the fact that generating a block consumes a large amount of computing power of the entire blockchain network to find a random number that satisfies the hash value. The low efficiency of blockchain accounting.

In order to achieve the above purpose, a first aspect of the present invention provides a blockchain accounting method, the method comprising:

When a new accounting node joins the blockchain to which this accounting node belongs, determine the hash value corresponding to the blockchain identifier of each accounting node;

The locally stored sorted list is updated according to the hash values corresponding to the blockchain identifiers of the billing nodes, and the sorted list includes a sequence of hash values corresponding to the blockchain identifiers of the billing nodes in the blockchain ;

The token is passed to the corresponding accounting node according to the sorted list, so that the accounting node currently holding the token generates a new block.

Preferably, the method further includes:

When a new accounting node joins the blockchain, determine the hash value corresponding to the blockchain identification of the new accounting node and the hash corresponding to the blockchain identification of the accounting node currently holding the token the difference between the values;

The waiting time before the new accounting node participates in the token transfer is determined according to the difference.

Preferably, the waiting time is a multiple of a standard time, and the standard time is the time for the token to be passed from one billing node to another billing node.

Preferably, the method further includes:

When the accounting node currently holds the token, if it detects that an integer overflow occurs in the smart contract involved in the new block generated by the accounting node, it will stop executing the transfer operation of the capital transaction, and execute the transfer operation in the blockchain. The first broadcast message carries the identification of both parties of the smart contract, the number of the smart contract and the integer overflow alarm identification.

Preferably, the method further includes:

When this accounting node does not currently hold a token, if it detects that an integer overflow occurs in the smart contracts involved in new blocks published by other accounting nodes in the blockchain, and does not receive any broadcasts from the other accounting nodes If the first broadcast message is the first broadcast message, the second broadcast message is broadcast in the blockchain, and the second broadcast message carries the message that the new block issued by the other accounting The number and integer overflow warning flag of the smart contract.

A second aspect of the present invention provides an accounting node, the accounting node includes a first processing module, an update module and a transfer module;

The first processing module is configured to, when a new accounting node joins the blockchain to which the current accounting node belongs, determine the hash value corresponding to the blockchain identifier of each accounting node;

The updating module is configured to update a locally stored sorting list according to the hash value corresponding to the blockchain identification of each accounting node, where the sorting list includes the blockchain identification of each accounting node in the blockchain A sequence of corresponding hash values;

The transfer module is configured to transfer the token to the corresponding accounting node according to the sorted list, so that the accounting node currently holding the token generates a new block.

Preferably, the first processing module is further configured to, when a new accounting node joins the blockchain, determine the hash value corresponding to the blockchain identifier of the new accounting node and the token currently held The difference between the hash values corresponding to the blockchain identification of the billing node, and the waiting time before the new billing node participates in the token transfer is determined according to the difference.

Preferably, the waiting time is a multiple of a standard time, and the standard time is the time for the token to be passed from one billing node to another billing node.

Preferably, the accounting node further includes a second processing module;

The second processing module is used for, when the current accounting node currently holds the token, if an integer overflow is detected in the smart contract involved in the new block generated by the accounting node, the execution of the transfer of the capital transaction is stopped. operation, and broadcast a first broadcast message in the blockchain, and the first broadcast message carries the identifiers of both parties of the smart contract, the number of the smart contract, and the integer overflow alarm identifier.

Preferably, the second processing module is also used for, when the current accounting node does not currently hold a token, if it is detected that an integer overflow occurs in the smart contract involved in the new block published by other accounting nodes in the blockchain , and the first broadcast message broadcast by the other accounting nodes is not received, then the second broadcast message is broadcast in the blockchain, and the second broadcast message carries the new block published by the other accounting nodes. message, the identification of both parties of the smart contract, the number of the smart contract and the integer overflow alarm identification.

In the blockchain accounting method provided by the embodiment of the present invention, when a new accounting node is added to the blockchain to which the current accounting node belongs, the hash value corresponding to the blockchain identification of each accounting node is determined, and according to each accounting node The hash value corresponding to the blockchain identifier of the accounting node updates the locally stored sorted list. The sorted list includes the sequence of hash values corresponding to the blockchain identifiers of each accounting node in the blockchain, and the token is passed according to the sorted list. To the corresponding accounting node, so that the accounting node currently holding the token generates a new block. The blockchain method provided by the embodiment of the present invention can make the accounting nodes in the blockchain compete for the accounting right of a new block without searching for a random number that satisfies the hash value through computing power competition, thereby improving the blockchain. Accounting efficiency.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention.

1 is a schematic flowchart 1 of a blockchain accounting method provided by an embodiment of the present invention;

FIG. 2 is a second schematic flowchart of a blockchain accounting method provided by an embodiment of the present invention;

3 is a schematic structural diagram 1 of an accounting node provided by an embodiment of the present invention;

FIG. 4 is a second schematic structural diagram of an accounting node provided by an embodiment of the present invention.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

A blockchain is a decentralized database that contains a list of blocks called blocks, with continuously growing and neatly arranged records. Each block contains a timestamp and a link to the previous block: the blockchain is designed so that data cannot be tampered with, and once recorded, the data in a block is irreversible. Blockchain is a new application mode of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The so-called consensus mechanism is a mathematical algorithm that realizes the establishment of trust between different nodes and the acquisition of rights and interests in the blockchain system. Blockchain is an important concept of Bitcoin. The "2014-2016 Global Bitcoin Development Research Report" released by Huobi.com, Tsinghua University PBC School of Finance Internet Finance Laboratory, and Sina Technology mentioned that blockchain is the The underlying technology and infrastructure of Bitcoin is essentially a decentralized database and serves as the underlying technology of Bitcoin. A blockchain is a series of data blocks that are associated using cryptographic methods. Each data block contains the information of a Bitcoin network transaction, which is used to verify the validity of its information (anti-counterfeiting) and generate the next block. In a narrow sense, blockchain is a chained data structure that combines data blocks in sequential order according to time sequence, and is cryptographically guaranteed to be an untamperable and unforgeable distributed ledger. Broadly speaking, blockchain technology is the use of blockchain data structures to verify and store data, the use of distributed node consensus algorithms to generate and update data, the use of cryptography to ensure the security of data transmission and access, and the use of automated scripts. A new distributed infrastructure and computing for programming and manipulating data using smart contracts composed of code. The design of the blockchain is a safeguard, such as (applied to) a highly fault-tolerant distributed computing system. Hybrid consistency is made possible by blockchain, which is suitable for recording events, titles, medical records and other activities that require data to be included, identity management, transaction flow management and provenance management. Blockchain has huge potential for financial disintermediation and has a huge impact on leading global trade. The concept of blockchain was first proposed by Satoshi Nakamoto in 2008, and in the years that followed, Bitcoin became a core component of electronic money: as a public ledger of all transactions, through the use of peer-to-peer networks and distributed time The poke server, the blockchain database can be managed autonomously, the blockchain invented for Bitcoin made Bitcoin the first digital currency to solve the problem of repeated consumption, and the design of Bitcoin has become a source of inspiration for other applications.

With the continuous development of the mobile Internet, the relationship between China's real economy and the Internet has become more and more close; for this reason, the state has positioned the mobile Internet as a "new field of innovation and development, a new platform for public services, and a new platform for information sharing from the perspective of policymakers." channel". The Internet on the PC (Personal Computer, personal computer) side has been in an increasingly saturated situation, while the mobile Internet is booming, and traditional Internet giants have also begun to focus on the mobile Internet. Now is an era of technology-driven financial development, and the driving factors of technology have developed from the earliest Internet information to big data, cloud computing, and mobile Internet in recent years. However, technological innovation is never-ending, and blockchain, as a technological driving force, has shown a vigorous development trend. As a blockchain centered on the concept of decentralization and distributed shared accounting technology, it will be embedded in many links in the financial field in the future, such as credit enhancement, right confirmation, equity registration, financial trade, digital assets, etc. The blockchain is still in the initial stage of development. Whether it is a large institution or a small company, the blockchain is still on the road of exploration. As a distributed shared accounting technology, the latest and most cutting-edge technology in the field of financial technology, blockchain, in a larger sense, enables all parties involved to establish a trust relationship at the technical level. At present, this technology has a lot of imagination space in the field of equity registration, confirmation, clearing and settlement in the financial field, and in the field of logistics and product verification. Bubi Blockchain pointed out that at present, more of Bubi’s technologies focus on commercial-grade blockchain technical support services, which specifically include three areas. First, the digital asset field, which includes other data in addition to the common points and check-in cards. The second is the field of trade finance; the third is the field of equity, which improves the convenience of equity transactions.

In the Bitcoin network, data is permanently recorded in the form of files, which we call blocks. A block is a set of records of some or all of the latest Bitcoin transactions that have not been recorded by other previous blocks. Think of a block as a separate page in a city recorder's record book (records of changes to real estate titles), or the general ledger of a stock exchange. In the vast majority of cases, new blocks are added to the end of the record (the name in Bitcoin is the blockchain), and once written, they can never be changed or deleted. Each block records all events that happened before it was created. Each block includes a constant called the magic number, the size of the block, the block header, the number of transactions the block contains, and some or all of the recent new transactions. In each block, it is the block header that determines the entire blockchain. The current blockchain ledger stores the entire block of each block, which requires each node to have a large amount of storage space to store the entire ledger of the blockchain.

Please refer to FIG. 1. FIG. 1 is a schematic flowchart of a blockchain accounting method provided by an embodiment of the present invention.

As shown in Figure 1, the method may include the following steps:

Step 11: When a new accounting node joins the blockchain to which the accounting node belongs, determine the hash value corresponding to the blockchain identifier of each accounting node.

In this step, when a new accounting node is added to the private blockchain composed of accounting nodes, each accounting node needs to determine the hash value corresponding to the blockchain identifier of each accounting node.

Step 12: Update the locally stored sorted list according to the hash values corresponding to the blockchain identifiers of each accounting node, where the sorted list includes a sequence of hash values corresponding to the blockchain identifiers of each accounting node in the blockchain.

In this step, when a new accounting node is added to the private blockchain composed of accounting nodes, each accounting node needs to be updated based on the hash value corresponding to the blockchain identifier of each accounting node The sorting list stored internally by itself. In the sorting list, the accounting nodes can be sorted according to the hash value in descending order.

Step 13: Pass the token to the corresponding accounting node according to the sorted list, so that the accounting node currently holding the token generates a new block.

In this step, a token transfer method can be adopted to determine the order in which each accounting node generates a new block. Each accounting node can determine which accounting node it needs to pass the token to after generating a new block according to the sorted list, and the accounting node currently holding the token has the qualification to generate a new block. Subsequently, the mining rewards that can be allocated by each accounting node can be determined according to the number of new blocks written into the blockchain ledger generated after the token is passed to each accounting node.

It can be seen from the above steps 11-13 that in the blockchain accounting method provided by the embodiment of the present invention, when a new accounting node is added to the blockchain to which the current accounting node belongs, the blockchain of each accounting node is determined. Identify the corresponding hash value, and update the locally stored sorting list according to the hash value corresponding to the blockchain identification of each accounting node. The sorting list includes the hash value corresponding to the blockchain identification of each accounting node in the blockchain. , pass the token to the corresponding accounting node according to the sorted list, so that the accounting node currently holding the token generates a new block. The blockchain method provided by the embodiment of the present invention can make the accounting nodes in the blockchain compete for the accounting right of a new block without searching for a random number that satisfies the hash value through computing power competition, thereby improving the blockchain. Accounting efficiency.

As shown in FIG. 2, in some embodiments, the blockchain accounting method may further include the following steps:

Step 21: When a new accounting node joins the blockchain, determine the hash value corresponding to the blockchain identifier of the new accounting node and the hash value corresponding to the blockchain identifier of the accounting node currently holding the token difference between.

In this step, when a new accounting node is added to the private blockchain composed of accounting nodes, each accounting node can determine the hash value corresponding to the blockchain identifier of the newly added accounting node The absolute value of the difference between the hashes corresponding to the blockchain identity of the accounting node currently holding the token.

Step 22: Determine the waiting time before the new accounting node participates in the token transfer according to the difference.

In this step, each accounting node can compare the hash value corresponding to the blockchain identification of the newly added accounting node with the hash value corresponding to the blockchain identification of the accounting node currently holding the token. The absolute value of the difference to determine when the newly added accounting node participates in the token transfer.

It can be seen from the above steps 21-22 that in the blockchain accounting method provided by the embodiment of the present invention, when a new accounting node joins the blockchain, the hash value corresponding to the blockchain identifier of the new accounting node is determined The difference between the hash values corresponding to the blockchain identifier of the accounting node currently holding the token is used to determine the waiting time before the new accounting node participates in the token transfer according to the difference. The blockchain method provided by the embodiment of the present invention can enable the accounting nodes newly added to the blockchain to participate in the token transfer in an orderly manner and then wait for the accounting rights of the new block.

In some embodiments, the latency is a multiple of a standard time, which is the time it takes for a token to pass from one billing node to another billing node.

In this embodiment, when a new billing node is added to the private blockchain composed of billing nodes, each billing node can use the hash value corresponding to the blockchain identifier of the newly added billing node The absolute value of the difference between the hash values corresponding to the blockchain identification of the accounting node currently holding the token to determine the waiting time of the newly added accounting node before participating in the token transfer is standard time Several times, where the standard time can be the time for the token to pass from one billing node to another billing node.

In some embodiments, the blockchain accounting method may include the following steps: when the accounting node currently holds the token, if it is detected that an integer appears in the smart contract involved in the new block generated by the accounting node If there is an overflow, the transfer operation of the fund transaction will be stopped, and the first broadcast message will be broadcast in the blockchain. The first broadcast message carries the identification of both parties of the smart contract, the number of the smart contract and the integer overflow alarm identification.

In the private blockchain composed of accounting nodes, each accounting node can set up an integer overflow detection module inside, which is mainly used to check the smart contracts involved in the new blocks generated in this blockchain. Whether there is an integer overflow in . Because the integer variables in the smart contract will have corresponding maximum and minimum values, once the value stored in the variable exceeds the maximum value, an integer overflow error will occur, resulting in the last value stored in the variable being 0, otherwise it will be an integer underflow Error, the last value stored in the variable is the maximum value of the variable. Of course, the overflow situation is not limited to integer overflow or integer underflow, and overflow may also occur in the process of calculation, conversion, etc. The balance in a smart contract, usually represented by an unsigned integer, usually a 256-bit number. When unsigned integers underflow or overflow, their value changes immediately. For example, subtracting a number that is 1 larger than the balance will cause an underflow, resulting in a large number of 65535 from the balance, creating a lot of tokens out of thin air (used to start some machines or used as payment methods) tokens), that is to say, due to the overflow of large integers to negative numbers, each node of the network has verified the hacker's transactions, which will lead to a large number of bitcoins appearing out of thin air in the bitcoin blockchain.

When it is the token's turn to generate a new block, the detection module in the accounting node detects whether the smart contract involved in each new block generated by itself has integer underflow or overflow, that is, the transaction update involved in the smart contract is within the byte threshold. If it exceeds the threshold range, the accounting node will immediately stop executing the transfer of the capital transactions involved in the smart contract, and then perform an integer overflow alarm operation. Specifically, the accounting node will use its own private key for this new block. The IDs of both parties involved in the smart contract, the smart contract number and the integer overflow alarm ID are signed, and then the first broadcast message including these information is broadcast to the blockchain network.

In some embodiments, the blockchain accounting method may include the following steps: when the current accounting node does not currently hold a token, if a smart contract involved in a new block published by other accounting nodes in the blockchain is detected If an integer overflow occurs in the block chain, and the first broadcast message broadcast by other accounting nodes is not received, the second broadcast message is broadcast in the blockchain, and the second broadcast message carries the message that the new block issued by other accounting nodes is invalid, intelligent The identification of both parties to the contract, the number of the smart contract, and the integer overflow alarm identification.

When it is not the token's turn to generate a new block, the detection module of each accounting node detects whether the new block published by other accounting nodes in each newly received broadcast message involves whether there is an integer value in the smart contract. Overflow or overflow, if it is found that the transaction update status of the smart contract involved in the new block published by the other accounting node exceeds the threshold range, and the other accounting node does not send the broadcast message of the alarm operation, then the accounting node will The account node does not recognize the legitimacy of the new block, and uses its own private key to sign the message that the new block is invalid, the IDs of the smart contract parties involved in the new block, the smart contract number, and the integer overflow alarm ID. , and then broadcast a second broadcast message including this information to the blockchain network.

In the embodiment of the present invention, by setting an integer overflow detection module inside each accounting node, when an integer overflow is detected in the smart contracts involved in the new blocks generated by other accounting nodes and the first alarm message is not sent, the second alarm message is sent out. The alarm information to deny the legitimacy of the new block can ensure that the blocks generated by other accounting nodes will not cause asset loss due to integer overflow, improve the user experience and the security of blockchain transactions, and promote the block The development of chain technology.

Based on the same inventive concept, an embodiment of the present invention also provides an accounting node, which is applied to blockchain accounting.

Please refer to FIG. 3 , which is a schematic diagram of a module of an accounting node according to an embodiment of the present invention.

As shown in FIG. 3 , the evaluation device may include a first processing module 100 , an update module 200 and a delivery module 300 .

The first processing module 100 is configured to, when a new accounting node joins the blockchain to which the current accounting node belongs, determine the hash value corresponding to the blockchain identifier of each accounting node.

The updating module 200 is configured to update the locally stored sorting list according to the hash value corresponding to the blockchain identification of each accounting node, and the sorting list includes a sequence of hash values corresponding to the blockchain identification of each accounting node in the blockchain .

The delivery module 300 is configured to deliver the token to the corresponding accounting node according to the sorted list, so that the accounting node currently holding the token generates a new block.

In some embodiments, the first processing module 100 is further configured to: when a new accounting node joins the blockchain, determine the hash value corresponding to the blockchain identifier of the new accounting node and the record of the token currently held The blockchain identifies the difference between the corresponding hash values of the accounting node, and determines the waiting time before the new accounting node participates in the token transfer according to the difference.

In some embodiments, the latency may be a multiple of a standard time, which may be the time for a token to pass from one billing node to another billing node.

In some embodiments, as shown in FIG. 4 , the billing node may further include a second processing module 400 .

The second processing module 400 is configured to, when the current accounting node currently holds the token, if it is detected that an integer overflow occurs in the smart contract involved in the new block generated by the accounting node, stop executing the transfer operation of the fund transaction , and broadcast the first broadcast message in the blockchain, the first broadcast message carries the identification of both parties of the smart contract, the number of the smart contract and the integer overflow alarm identification.

In some embodiments, the second processing module 400 is further configured to, when the current accounting node does not currently hold a token, if it is detected that a new block published by other accounting nodes in the blockchain appears in the smart contract involved If the integer overflows and the first broadcast message broadcast by other accounting nodes is not received, the second broadcast message is broadcast in the blockchain, and the second broadcast message carries the message that the new block released by other accounting nodes is invalid, and both parties of the smart contract , the number of the smart contract, and the integer overflow alarm identifier.

It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention, but the present invention is not limited thereto. For those skilled in the art, without departing from the spirit and essence of the present invention, various modifications and improvements can be made, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims (10)

1. A method for block chain accounting, the method comprising:

when a new accounting node is added into the block chain to which the accounting node belongs, determining a hash value corresponding to the block chain identification of each accounting node;

updating a locally stored ordered list according to the hash value corresponding to the block chain identifier of each accounting node, wherein the ordered list comprises a sequence of hash values corresponding to the block chain identifiers of each accounting node in the block chain;

and transmitting the token to the corresponding accounting node according to the sorted list so as to enable the accounting node currently holding the token to generate a new block.

2. The method of claim 1, further comprising:

when a new accounting node is added into the block chain, determining the difference value between the hash value corresponding to the block chain identifier of the new accounting node and the hash value corresponding to the block chain identifier of the accounting node currently holding the token;

and determining the waiting time before the new accounting node participates in token transmission according to the difference.

3. The method of claim 2, wherein the wait time is a multiple of a standard time, wherein the standard time is a time for the token to pass from one billing node to another billing node.

4. The method according to any one of claims 1-3, further comprising:

when the accounting node currently holds the token, if integer overflow in the intelligent contract related to a new block generated by the accounting node is detected, stopping executing the transfer operation of fund transaction, and broadcasting a first broadcast message in the block chain, wherein the first broadcast message carries the identification of both parties of the intelligent contract, the serial number of the intelligent contract and the integer overflow alarm identification.

5. The method of claim 4, further comprising:

when the accounting node does not hold a token currently, if detecting that integer overflow occurs in an intelligent contract related to a new block issued by other accounting nodes in a block chain and first broadcast messages broadcast by other accounting nodes are not received, broadcasting a second broadcast message in the block chain, wherein the second broadcast message carries a message for invalidating the new block issued by other accounting nodes, identifiers of both parties of the intelligent contract, a number of the intelligent contract and an integer overflow alarm identifier.

6. A billing node, wherein the billing node comprises a first processing module, an update module and a transfer module;

the first processing module is used for determining a hash value corresponding to the block chain identification of each accounting node when a new accounting node is added into the block chain to which the accounting node belongs;

the updating module is used for updating a locally stored ordered list according to the hash value corresponding to the block chain identifier of each accounting node, wherein the ordered list comprises a sequence of hash values corresponding to the block chain identifiers of each accounting node in the block chain;

and the transmission module is used for transmitting the token to the corresponding accounting node according to the sorted list so as to enable the accounting node currently holding the token to generate a new block.

7. The accounting node of claim 6, wherein the first processing module is further configured to, when a new accounting node joins the blockchain, determine a difference between the hash value corresponding to the blockchain identifier of the new accounting node and the hash value corresponding to the blockchain identifier of the accounting node currently holding the token, and determine a waiting time before the new accounting node participates in token transfer according to the difference.

8. Accounting node according to claim 7, wherein the waiting time is a multiple of a standard time, the standard time being the time the token is passed from one accounting node to another.

9. Accounting node according to any one of claims 6-8, further comprising a second processing module;

the second processing module is configured to, when the current accounting node holds the token, stop executing a transfer operation of a fund-like transaction if integer overflow is detected in an intelligent contract related to a new block generated by the accounting node, and broadcast a first broadcast message in the block chain, where the first broadcast message carries identifiers of both parties of the intelligent contract, a number of the intelligent contract, and an integer overflow alarm identifier.

10. The accounting node of claim 9, wherein the second processing module is further configured to, when the current accounting node does not hold a token, if it is detected that integer overflow occurs in an intelligent contract related to a new block issued by another accounting node in a block chain and a first broadcast message broadcast by the other accounting node is not received, broadcast a second broadcast message in the block chain, where the second broadcast message carries a message of invalidation of the new block issued by the other accounting node, identifiers of both intelligent contracts, a number of the intelligent contract, and an integer overflow alarm identifier.

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