CN111597264B - A blockchain bookkeeping method and device - Google Patents

Abstract

The invention discloses a block chain accounting method, which comprises the following steps: when a new billing node joins the blockchain to which the billing node belongs, determining hash values corresponding to the blockchain identifiers of all billing nodes, updating a locally stored sorting list according to the hash values corresponding to the blockchain identifiers of all billing nodes, wherein the sorting list comprises a sequence of hash values corresponding to the blockchain identifiers of all billing nodes in the blockchain, and transmitting the token to the corresponding billing node according to the sorting list so that the billing node currently holding the token generates a new block. The blockchain method provided by the embodiment of the invention can enable the accounting nodes in the blockchain to contend for the accounting right of the new block without searching a random number meeting the hash value through the competitive power, thereby improving the accounting efficiency of the blockchain.

Description

A blockchain bookkeeping method and device

technical field

The invention relates to the technical field of block chains, in particular to a block chain bookkeeping 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 when the accounting node generates a block, and this calculation itself has no practical significance and will affect the blockchain record account efficiency.

Contents of the invention

For this reason, the present invention provides a block chain bookkeeping method and device to solve the problem in the prior art that it takes a lot of computing power of the entire block chain network to find a random number that satisfies the hash value in the prior art. The problem of low efficiency of blockchain bookkeeping.

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

When a new bookkeeping node joins the blockchain to which the bookkeeping node belongs, determine the hash value corresponding to the blockchain identification of each bookkeeping node;

Update the locally stored sorting list according to the hash value corresponding to the block chain identification of each bookkeeping node, and the sorting list includes a sequence of hash values corresponding to the block chain identification of each bookkeeping node in the block chain ;

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

Preferably, the method also includes:

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

The waiting time before the new bookkeeping node participates in 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 transferred from one billing node to another billing node.

Preferably, the method also includes:

When the bookkeeping 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 bookkeeping node, it will stop executing the transfer operation of the capital transaction, and in the block chain Broadcasting a first broadcast message in the middle, the first broadcast message carries the identifiers of both parties to the smart contract, the number of the smart contract, and an integer overflow alarm identifier.

Preferably, the method also includes:

When the bookkeeping node does not currently hold tokens, if it detects that there is an integer overflow in the smart contract involved in the new block issued by other bookkeeping nodes in the blockchain, and does not receive the information broadcast by the other bookkeeping nodes The first broadcast message, then broadcast the second broadcast message in the block chain, the second broadcast message carries the message that the new block issued by the other bookkeeping node is invalidated, the identification of both parties of the smart contract, the The number of the smart contract and the integer overflow alarm flag.

The 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 used to determine the hash value corresponding to the block chain identifier of each bookkeeping node when a new bookkeeping node joins the blockchain to which the bookkeeping node belongs;

The update module is used to update the locally stored sorted list according to the hash values corresponding to the blockchain identifiers of the accounting nodes, the sorted list includes the blockchain identifiers of the accounting nodes in the blockchain A sequence of corresponding hash values;

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

Preferably, the first processing module is further configured to, when a new bookkeeping node joins the blockchain, determine that the hash value corresponding to the blockchain identification of the new bookkeeping node is the same as the currently held token The difference between the corresponding hash values of the block chain identification of the bookkeeping node, and determine the waiting time before the new bookkeeping node participates in token transfer 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 transferred from one billing node to another billing node.

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

The second processing module is used for, when the bookkeeping 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 bookkeeping node, then stop executing the transfer of the capital transaction operation, and broadcast a first broadcast message in the blockchain, where the first broadcast message carries the identifications of both parties to the smart contract, the number of the smart contract, and an integer overflow alarm identification.

Preferably, the second processing module is also used for, when the bookkeeping 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 issued by other bookkeeping nodes in the blockchain , and the first broadcast message broadcast by the other bookkeeping nodes is not received, then the second broadcast message is broadcast in the blockchain, and the second broadcast message carries the new block issued by the other bookkeeping nodes to be invalid message, the identification of both parties of the smart contract, the number of the smart contract and the integer overflow alarm identification.

In the block chain bookkeeping method provided by the embodiment of the present invention, when a new bookkeeping node joins the block chain to which the bookkeeping node belongs, the hash value corresponding to the block chain identification of each bookkeeping node is determined, and according to each The hash value corresponding to the blockchain ID of the bookkeeping node updates the sorting list stored locally. The sorting list includes the sequence of hash values corresponding to the blockchain ID of each bookkeeping node in the blockchain, and the token is passed according to the sorting list To the corresponding bookkeeping node, so that the bookkeeping node currently holding the token generates a new block. The block chain method provided by the embodiment of the present invention can make the bookkeeping nodes in the block chain not need to compete for a random number that satisfies the hash value through computing power competition to compete for the bookkeeping right of the new block, which improves the block chain Bookkeeping efficiency.

Description of drawings

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

Fig. 1 is a schematic flow diagram one of the block chain bookkeeping method provided by the embodiment of the present invention;

Fig. 2 is the second schematic flow diagram of the blockchain bookkeeping method provided by the embodiment of the present invention;

FIG. 3 is a structural schematic 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

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

A blockchain is a decentralized database consisting of a continuously growing list of records called blocks. Each block contains a timestamp and a link to the previous block: the blockchain is designed so that the data cannot be tampered with, and once recorded, the data in a block is irreversible. Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain rights and interests between different nodes in the blockchain system.

With the continuous development of the mobile Internet, the relationship between China's real economy and the Internet has become closer; for this reason, the country 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 PC (Personal Computer, personal computer) Internet has been in a situation of increasing saturation, while the mobile Internet is booming, and the traditional Internet giants have also begun to focus on the mobile Internet. Now is an era of technology-driven financial development. 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 endless, and blockchain, as a technological driving force, has shown a vigorous development trend. As a blockchain with the concept of decentralization and distributed shared accounting technology as the core, it will be embedded in many links in the financial field in the future, such as credit enhancement, confirmation of rights, equity registration, financial trade, digital assets, etc. The blockchain is still in the initial stage of development. Whether it is a large organization or a small company, the blockchain is still on the road of exploration. As a distributed shared bookkeeping technology, the latest and most cutting-edge technology blockchain in the field of financial technology, in a larger sense, enables the parties involved to establish a trust relationship at the technical level. At present, this technology has a lot of room for imagination, whether it is in the equity registration, confirmation of rights, clearing and settlement in the financial field, or in the field of logistics and product verification and traceability. Bubi Blockchain pointed out that at present, more technologies of Bubi are focused on commercial-level blockchain technology support services, which specifically include three areas. First, the field of digital assets includes other data besides 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.

Please refer to FIG. 1. FIG. 1 is a schematic flowchart of a blockchain bookkeeping 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 bookkeeping node joins the blockchain to which the bookkeeping node belongs, determine the hash value corresponding to the blockchain identifier of each bookkeeping node.

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

Step 12: Update the locally stored sorted list according to the hash values corresponding to the blockchain identifiers of each accounting node, and 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 bookkeeping node joins the private blockchain composed of bookkeeping nodes, each bookkeeping node needs to be updated based on the hash value corresponding to the blockchain identifier of each bookkeeping node In the sorted list saved internally, each bookkeeping node can be sorted according to the order of hash value from large to small.

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

In this step, token transfer can be adopted to determine the order in which each accounting node generates a new block. Each bookkeeping node can determine which bookkeeping node needs to pass the token to when it generates a new block according to the sorted list, and the bookkeeping node currently holding the token has the qualification to generate a new block.

It can be seen from the above steps 11-13 that in the block chain bookkeeping method provided by the embodiment of the present invention, when a new bookkeeping node joins the block chain to which the bookkeeping node belongs, the block chain of each bookkeeping node is determined. Identify the corresponding hash value, and update the locally stored sorted list according to the hash value corresponding to the blockchain ID of each bookkeeping node. The sorted list includes the hash value corresponding to the blockchain ID of each bookkeeping node in the blockchain According to the sorted list, the token is passed to the corresponding bookkeeping node, so that the bookkeeping node currently holding the token can generate a new block. The block chain method provided by the embodiment of the present invention can make the bookkeeping nodes in the block chain not need to compete for a random number that satisfies the hash value through computing power competition to compete for the bookkeeping right of the new block, which improves the block chain Bookkeeping efficiency.

As shown in Figure 2, in some embodiments, the blockchain bookkeeping method may also include the following steps:

Step 21, when a new bookkeeping node joins the blockchain, determine the hash value corresponding to the blockchain ID of the new bookkeeping node and the hash value corresponding to the blockchain ID of the bookkeeping node currently holding the token the difference between.

In this step, when a new bookkeeping node joins the private blockchain composed of bookkeeping nodes, each bookkeeping node can determine the hash value corresponding to the blockchain identifier of the newly added bookkeeping node The absolute value of the difference between the hash values corresponding to the blockchain id of the ledger node currently holding the token.

Step 22, determine the waiting time before the new bookkeeping node participates in token transfer according to the difference.

In this step, each bookkeeping node can be based on the difference between the hash value corresponding to the blockchain ID of the newly added bookkeeping node and the hash value corresponding to the blockchain ID of the bookkeeping node currently holding the token. The absolute value of the difference to determine when the newly added bookkeeping node participates in the token transfer.

As can be seen from the above steps 21-22, the block chain bookkeeping method provided by the embodiment of the present invention, when a new bookkeeping node joins the block chain, determine the hash value corresponding to the block chain identification of the new bookkeeping node The difference between the hash values corresponding to the block chain identification of the bookkeeping node currently holding the token, and determine the waiting time before the new bookkeeping node participates in the token transfer according to the difference. The block chain method provided by the embodiment of the present invention can enable the bookkeeping nodes newly added to the block chain to participate in the token transfer in an orderly manner and wait for the bookkeeping right of the new block.

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

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

In some embodiments, the blockchain bookkeeping method may include the following steps: when the bookkeeping 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 bookkeeping node overflow, the transfer operation of capital transactions will be stopped, and the first broadcast message will be broadcast in the blockchain. The first broadcast message will carry the identification of both parties to the smart contract, the number of the smart contract, and the integer overflow alarm identification.

In the private blockchain composed of bookkeeping nodes, each bookkeeping node can set an integer overflow detection module inside, which is mainly used to check the smart contracts involved in the new blocks generated in the blockchain Whether there is an integer overflow in . Because the integer variables in the smart contract 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 stored value of the variable being 0, otherwise it is an integer underflow Error, the last value stored in the variable is the maximum value of the variable. Of course, the situation of overflow is not limited to integer overflow or integer underflow, overflow may also occur in the process of calculation, conversion, etc. Balances in smart contracts, usually represented by unsigned integers, usually 256-bit numbers. When unsigned integers underflow or overflow, their values change immediately.

When it is the turn of the token to generate a new block, the detection module in the bookkeeping node detects whether there is an integer underflow or overflow in the smart contract involved in each new block generated by itself, that is, the transaction update involved in the smart contract Whether the status of is within the byte threshold. If it exceeds the threshold range, the bookkeeping node will immediately stop the transfer of capital transactions involved in the smart contract, and then perform an integer overflow alarm operation. Specifically, the bookkeeping node uses its own private key to update the new block The identifications of the two parties involved in the smart contract, the smart contract number and the integer overflow alarm identification are signed, and then the first broadcast message including these information is broadcast to the block chain network.

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

When the token is not its turn to generate a new block, the detection module of each bookkeeping node detects whether the new block released by other bookkeeping nodes in the newly received broadcast message involves whether there is an integer sub-block 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 issued by the other bookkeeping node exceeds the threshold range, and the other bookkeeping node does not send a broadcast message for alarm operation, then the bookkeeping node The ledger node does not recognize the legitimacy of the new block, and uses its own private key to sign the invalidation message of this new block, the identification of both parties to the smart contract involved in this new block, the smart contract number and the integer overflow alarm identification , and then broadcast the second broadcast message including these information to the block chain network.

In the embodiment of the present invention, by setting an integer overflow detection module inside each accounting node, when it is detected that an integer overflow occurs in the smart contract involved in a new block generated by other accounting nodes and the first alarm message is not issued, a second alarm message is issued. Alarm information to deny the legitimacy of the new block can ensure that the blocks generated by other bookkeeping nodes will not cause asset loss due to integer overflow, which improves the user experience and the security of blockchain transactions, and promotes 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 . FIG. 3 is a schematic diagram of modules of an accounting node provided by an embodiment of the present invention.

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

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

The update module 200 is used to update the locally stored sorted list according to the hash value corresponding to the blockchain identifier of each bookkeeping node, and the sorted list includes a sequence of hash values corresponding to the blockchain identifier of each bookkeeping node in the blockchain .

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

In some embodiments, the first processing module 100 is also used for: when a new bookkeeping node joins the block chain, determine the hash value corresponding to the block chain identification of the new bookkeeping node and the bookkeeping node currently holding the token. The difference between the hash values corresponding to the block chain identification of the accounting node, and determine the waiting time before the new accounting node participates in the token transfer according to the difference.

In some embodiments, the waiting time may be a multiple of a standard time, which may be the time it takes for a token to pass from one accounting node to another accounting 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 used for, when the bookkeeping 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 bookkeeping node, stop the transfer operation of the capital transaction , and broadcast the first broadcast message in the block chain, the first broadcast message carries the identification of both parties to the smart contract, the number of the smart contract and the integer overflow alarm identification.

In some embodiments, the second processing module 400 is also used to, when the bookkeeping node does not currently hold a token, if it is detected that a new block issued by other bookkeeping nodes in the blockchain involves a If the integer overflows and the first broadcast message broadcast by other bookkeeping nodes is not received, the second broadcast message will be broadcast in the blockchain. , the number of the smart contract and the integer overflow alarm flag.

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

Claims (8)

1. A blockchain billing method, the method comprising:

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

updating a locally stored ordering list according to hash values corresponding to the blockchain identifications of the accounting nodes, wherein the ordering list comprises a sequence of hash values corresponding to the blockchain identifications of the accounting nodes in the blockchain;

transmitting the token to the corresponding accounting node according to the ordered list so as to enable the accounting node currently holding the token to generate a new block;

wherein the method further comprises:

when a new accounting node joins the blockchain, determining a difference value between a hash value corresponding to the blockchain identifier of the new accounting node and a hash value corresponding to the blockchain identifier of the accounting node currently holding the token;

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

2. The method of claim 1, wherein the wait time is a multiple of a standard time, the standard time being the time the token passes from one billing node to another billing node.

3. The method according to any one of claims 1-2, wherein the method further comprises:

when the accounting node currently holds a token, if detecting that an integer overflow occurs in an intelligent contract related to a new block generated by the accounting node, stopping executing the transfer operation of fund transaction, and broadcasting a first broadcast message in the blockchain, wherein the first broadcast message carries the identification of both sides of the intelligent contract, the number of the intelligent contract and the integer overflow alarm identification.

4. A method according to claim 3, characterized in that the method further comprises:

when the accounting node does not currently hold a token, if it is detected that integer overflow occurs in an intelligent contract related to a new block issued by other accounting nodes in a blockchain and a first broadcast message broadcast by the other accounting nodes is not received, a second broadcast message is broadcast in the blockchain, wherein the second broadcast message carries a message that the new block issued by the other accounting nodes is invalidated, an identifier of both sides of the intelligent contract, a number of the intelligent contract and an integer overflow alarm identifier.

5. A billing node, the billing node comprising a first processing module, an updating module, and a delivery module;

the first processing module is used for determining hash values corresponding to blockchain identifiers of all accounting nodes when new accounting nodes join the blockchain to which the accounting nodes belong;

the updating module is used for updating a locally stored ordering list according to hash values corresponding to the blockchain identifications of the accounting nodes, wherein the ordering list comprises a sequence of hash values corresponding to the blockchain identifications of the accounting nodes in the blockchain;

the transfer module is used for transferring the token to the corresponding accounting node according to the ordered list so as to enable the accounting node currently holding the token to generate a new block;

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

6. The billing node of claim 5, wherein said waiting time is a multiple of a standard time, said standard time being the time for said token to pass from one billing node to another billing node.

7. The billing node of any of claims 5-6, further comprising a second processing module;

the second processing module is configured to, when the accounting node currently holds the token, stop performing the transfer operation of the fund transaction and broadcast a first broadcast message in the blockchain if it is detected that an integer overflow occurs in the intelligent contract related to the new block generated by the accounting node, where the first broadcast message carries an identifier of both sides of the intelligent contract, a number of the intelligent contract, and an integer overflow alarm identifier.

8. The billing node of claim 7 wherein the second processing module is further configured to, when the billing node does not currently hold a token, broadcast a second broadcast message in the blockchain if it detects that an integer overflow occurs in a smart contract related to a new block issued by another billing node in the blockchain and a first broadcast message broadcast by the other billing node is not received, the second broadcast message carrying a message that the new block issued by the other billing node is obsolete, an identification of both sides of the smart contract, a number of the smart contract, and an integer overflow alarm identification.

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