CN111932264B - Multi-party transaction information consistency maintenance method based on block chain - Google Patents
Multi-party transaction information consistency maintenance method based on block chain Download PDFInfo
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Abstract
The application discloses a block chain-based multi-party transaction information consistency maintenance method, which comprises the following steps: presetting at least one transaction processing intelligent contract; the transaction processing intelligent contract comprises a transaction participation account corresponding to a transaction category and a transaction amount distribution proportion corresponding to the transaction participation account, wherein any transaction category comprises a plurality of transactions; when any transaction type occurs, calling a corresponding transaction processing intelligent contract; checking the validity of the transaction participation account and the transaction processing intelligent contract; executing all transaction operations in the transaction category; according to the proportion of the transaction amount corresponding to the transaction participation account, clearing the transaction information corresponding to the transaction participation account at the same time; and updating the cleared transaction information in the world state of the block chain. The method solves the problems that in the current single transaction clearing mode, if the previous transaction clearing is wrong, the account book is disordered and transaction assets are lost along with the subsequent related transaction clearing errors.
Description
Technical Field
The application relates to the technical field of block chains, in particular to a block chain-based multi-party transaction information consistency maintenance method.
Background
The block chain technology, also called distributed ledger technology, is an emerging technology in which a plurality of computer devices participate in "accounting" together, and a complete distributed database is maintained together. The block chain technology has the characteristics of decentralization, openness and transparency, each computer device can participate in database recording, and data synchronization can be rapidly carried out among the computer devices, so that the block chain technology is applied in a wider field. However, due to the fact that data transmission is interrupted or not timely, information among the accounts may not be identical, and state awareness of the same account is also different, so that the consistency of the multiple accounts is guaranteed by means of checking accounts, clearing points and the like, and the indelibility of transaction assets is guaranteed.
At present, account checking and clearing methods adopted in the blockchain technology are all performed for a single transaction, namely a single account book clearing mode. However, with the diversification of digital assets and the development of the diversity of the states of digital assets, one transaction is usually associated with another multiple transactions, if a single accounting mode only for one transaction is continuously adopted, if one transaction is cleared incorrectly, the other related multiple transactions are also cleared incorrectly, so that the accounting is disordered, and even the transaction assets are lost.
Disclosure of Invention
The application provides a block chain-based multi-party transaction information consistency maintenance method, which aims to solve the problems that in the existing single-transaction clearing mode, if the previous transaction clearing is wrong, the errors of subsequent related transaction clearing are caused, the account book is disordered, the transaction assets are lost and the like.
A multiparty transaction information consistency maintenance method based on a block chain comprises the following steps:
presetting at least one transaction processing intelligent contract, wherein each transaction processing intelligent contract corresponds to one transaction type; the transaction processing intelligent contract comprises a transaction participation account corresponding to the transaction category and a transaction amount allocation proportion corresponding to the transaction participation account, and any transaction category comprises multiple transactions;
when any transaction type occurs, calling the corresponding transaction processing intelligent contract;
checking the validity of the transaction participation account and the transaction processing smart contract;
if the transaction participation account and the transaction processing intelligent contract are both legal, executing all transaction operations in the transaction category, wherein the operations comprise the charge-out operation and the charge-in operation of the transaction participation account;
according to the transaction amount distribution proportion corresponding to the transaction participation account, clearing transaction information corresponding to the transaction participation account at the same time;
and updating the cleared transaction information in the world state of the block chain.
The block chain-based multi-party transaction information consistency maintenance method integrates multiple related transactions into one transaction category, sets a corresponding transaction processing intelligent contract for each transaction category in advance, and can call the corresponding transaction processing intelligent contract when any transaction category is initiated; transaction participation account processing logic, namely transaction execution logic, in the transaction type is set in the transaction processing intelligent contract, and the multiple transactions in the transaction type execute corresponding operation, clearing and transaction information storage according to the logic set in the transaction processing intelligent contract, so that the transaction information of the multiple associated transactions can be cleared simultaneously, the traditional single transaction clearing mode can be avoided, and if the previous transaction clearing is wrong, the problems of disordered accounts and lost transaction assets caused by the following related transaction clearing errors can be avoided.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a block chain-based multi-party transaction information consistency maintenance method according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a first transaction type execution process of the block chain-based multi-party transaction information consistency maintenance method shown in FIG. 1;
FIG. 3 is a schematic diagram illustrating a second transaction type execution process of the block chain-based multi-party transaction information consistency maintenance method shown in FIG. 1;
FIG. 4 is a clearing schematic diagram of the transaction category execution process shown in FIG. 2;
FIG. 5 is a clearing schematic diagram of the transaction category execution process shown in FIG. 3;
fig. 6 is a detailed flowchart of step S4 shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a flowchart of a block chain-based multi-party transaction information consistency maintenance method according to an embodiment of the present application. As shown in fig. 1, an embodiment of the present application provides a block chain-based multi-party transaction information consistency maintenance method, including the following steps:
and S1, presetting at least one transaction processing intelligent contract, wherein each transaction processing intelligent contract corresponds to one transaction type. If multiple categories of transactions exist in the blockchain, then multiple transaction processing smart contracts exist. As shown in fig. 1, the transaction category 1 and the transaction category 2 … transaction category m correspond to the transaction processing intelligent contract 1 and the transaction processing intelligent contract 2 … transaction processing intelligent contract m, respectively, where m may be any positive integer; each transaction category may include multiple transactions, which may be level 1 transactions, level 2 transactions … n transactions, where n may be any positive integer. The transaction processing intelligent contract is internally provided with a transaction participation account corresponding to the transaction type and a transaction amount distribution proportion corresponding to the transaction participation account, and the transaction participation account and the transaction amount distribution proportion can be regarded as transaction execution logic corresponding to the transaction type.
And S2, when any transaction type occurs, calling the corresponding transaction processing intelligent contract. Fig. 2 is a schematic diagram illustrating a first transaction type execution process of the block chain-based multi-party transaction information consistency maintenance method shown in fig. 1. As shown in FIG. 2, if the transaction category is a transfer transaction; this transfer transaction category may include level 1 transactions and level 2 transactions; the first account is used as an initiator of the level 1 transaction, and the second account is used as a receiver of the level 1 transaction; the second account acts as an initiator for the level 2 transaction and the third, fourth and fifth accounts act as recipients for the level 2 transaction. And calling a transfer transaction processing intelligent contract corresponding to the transfer transaction type, wherein transaction participation accounts arranged in the transfer transaction processing intelligent contract are a first account, a second account, a third account, a fourth account and a fifth account, the transaction amount distribution proportion is that the transaction amount of the first account is a sufficient amount, and the transaction amounts of the second account, the third account, the fourth account and the fifth account are products of the sufficient amount and a first proportion, a second proportion, a third proportion and a fourth proportion respectively. As shown in fig. 2, the first, second, third, and fourth ratios may be 50%, 10%, 20%, and 20%, respectively, as long as the sum of the first, second, third, and fourth ratios is 1. The transaction categories shown in fig. 2 can be understood as that the first account is used as a customer side to perform a transfer transaction of payment of goods money on the second account, and the second account also needs to perform a payment transfer transaction of material fees on the third account, the fourth account and the fifth account of the superior material supplier after receiving the goods money. Therefore, a level 2 transaction needs to be performed after a level 1 transaction. And since the amount of the level 2 transaction is based on the amount of the level 1 transaction, the level 1 transaction and the level 2 transaction belong to related transactions, and the transaction amounts of the two transactions can be cleared together in the final clearing step.
Further, fig. 3 is a schematic diagram illustrating a second transaction type execution process of the block chain-based multi-party transaction information consistency maintenance method shown in fig. 1. As shown in fig. 3, the transaction categories may be transfer transactions, and compared to the transaction categories shown in fig. 2, the transaction categories shown in fig. 3 may further include a level 3 transaction, the initiator of the level 3 transaction may be a fourth account and a fifth account, and the recipient of the level 3 transaction may be a sixth account and a seventh account. The transaction amount distribution proportion may specifically be that the transaction amount of the first account is a full amount, and the transaction amounts of the second account, the third account, the fourth account, the fifth account, the sixth account and the seventh account are 50%, 10% and 10% of the full amount, respectively.
It should be noted that the transaction participation accounts and the transaction amount allocation ratios shown in fig. 2 and 3 are only illustrative and are not intended to limit the present application.
S3, checking the validity of the transaction participation account and the transaction processing intelligent contract. The method specifically comprises the following steps:
and S31, judging whether the balance of the transaction participation account can meet the transaction category. Since each transaction category includes a plurality of transactions, it is necessary to determine whether the balance of each transaction participating account can satisfy the corresponding transaction, so as to ensure that all transactions in the transaction category can be performed normally.
And S32, judging whether the signature of the transaction participation account is valid. Similarly, since each transaction category includes multiple transactions, the certificate of each transaction participation account should be valid to sign the associated transaction to reflect the validity of each transaction participation account.
And S33, judging whether the identification number of the transaction processing intelligent contract is correct. Because a plurality of transaction processing intelligent contracts exist, each corresponding transaction processing intelligent contract needs to be provided with an identification number, the calling of the transaction intelligent contract can be facilitated, and the correctness of the identification number needs to be confirmed before the transaction processing intelligent contract is called.
And S34, judging whether the identity of the transaction participation account is legal.
It should be noted that the steps S31-S34 may be executed in parallel, and the determination result of each step is required to be yes, so as to determine that the transaction participation account and the transaction processing intelligent contract are legal, and as long as any one of the determination results is no, the check result of the step S3 is illegal, and the execution of the whole transaction category is terminated.
And S4, if the transaction participation account and the transaction processing intelligent contract are legal, executing all transaction operations in the transaction category, wherein the transaction operations can comprise the charge-out operation and the charge-in operation of the transaction participation account. As shown in FIG. 2, if the transaction category is a transfer transaction, the operation of the transaction category includes: the account balance of the first account is accounting full, the account balance of the second account is accounting full 50%, the account balance of the third account is accounting full 10%, the account balance of the fourth account is accounting full 20% and the account balance of the fifth account is accounting full 20%. As shown in fig. 3, the transaction category specifically includes: the account balance of the first account is accounting full, the account balance of the second account is accounting full 50%, the account balance of the second account is accounting full 10%, the account balance of the third account is accounting full 20%, the account balance of the fourth account is accounting full 20%, the account balance of the fifth account is accounting full 20%, the account balance of the fourth account is accounting full 10%, the account balance of the fifth account is accounting full 10%, the account balance of the sixth account is accounting full 10% and the account balance of the seventh account is accounting full 10%.
And S5, simultaneously clearing the transaction information corresponding to the transaction participation accounts according to the transaction amount distribution proportion corresponding to the transaction participation accounts. FIG. 4 is a clearing diagram of the transaction category execution process shown in FIG. 2. As shown in fig. 4, all transaction information of the first account, the second account, the third account, the fourth account, and the fifth account are simultaneously cleared according to the full amount of the first account, 50% full amount of the second account, 10% full amount of the third account, 20% full amount of the fourth account, and 20% full amount of the fifth account. FIG. 5 is a clearing schematic diagram of the transaction category execution process shown in FIG. 3. The transaction amount allocation proportion corresponding to the transaction category shown in fig. 5 is as follows: the transaction amounts of the first account, the second account, the third account, the fourth account, the fifth account, the sixth account and the seventh account are respectively 100%, 50%, 10% and 10% of the total amount.
And S6, updating the cleared transaction information in the world state of the block chain. The transaction information may include account balance, account inventory, order number, transaction amount, transaction number, and results of invocation of the transaction processing smart contract. The calling result of the transaction processing intelligent contract can be recorded in the world state in a private key signature mode. The private key signature can ensure that the calling result of the transaction processing intelligent contract is not easy to be falsified or forged, and the storage safety can be improved.
The transaction information can be stored in the world state in a K-V set form, and all the transaction information corresponding to each account form a K-V set. All information of the account can be stored in an object called a world state, the world state represents the latest value of all accounts of the current account book, and a user can directly obtain the latest value of the account information according to the account without traversing the whole block file for calculation. The K-V set can be expressed as [ K1-V1, K2-V2, K3-V3, …, Ki-Vi ], wherein i is any positive integer, and each element in the K-V set represents a transaction information. For example, K1-V1 represents account balance, K2-V2 represents account inventory, K3-V3 represents order number, K4-V4 represents transaction amount, K5-V5 represents transaction number, and K6-V6 represents the calling result of the transaction processing intelligent contract. Each element of the K-V set can be recorded one by one, is easy to trace, is clear and not easy to be confused in the clearing process, and can improve the clearing and storing efficiency while ensuring the accuracy of the clearing and storing transaction information.
The block chain-based multi-party transaction information consistency maintenance method provided by the embodiment of the application integrates multiple related transactions into one transaction category, sets a corresponding transaction processing intelligent contract for each transaction category in advance, and can call the corresponding transaction processing intelligent contract when any transaction category is initiated; transaction participation account processing logic, namely transaction execution logic, in the transaction type is set in the transaction processing intelligent contract, and the multiple transactions in the transaction type execute corresponding transaction operation, clearing and transaction information storage according to the logic set in the transaction processing intelligent contract, so that the transaction information of the multiple associated transactions can be cleared simultaneously, the traditional single transaction clearing mode can be avoided, and when the last transaction clearing is wrong, the problems of financial book disorder and transaction asset loss caused by the following related transaction clearing errors are solved.
Fig. 6 is a detailed flowchart of step S4 shown in fig. 1. As shown in fig. 6, if both the transaction participation account and the transaction processing smart contract are legal, all transaction operations in the transaction category are executed, which may specifically include the following steps:
and S41, if the transaction participation account and the transaction processing intelligent contract are legal, executing all transaction operations in the transaction category.
And S42, timing the transaction operation execution process to obtain the transaction execution time. And when all the transaction operations are executed, stopping timing.
And S43, judging whether the transaction execution time exceeds a preset threshold time. The preset threshold time may be set within the transaction processing intelligent contract for monitoring transaction execution time. Generally, transaction execution time of a transaction type fluctuates within a fixed range, and when abnormal conditions occur in a transaction, the transaction execution time fluctuates greatly, so that the abnormal transaction conditions can be found in time by setting a threshold time, so that the abnormal conditions are processed in a targeted manner, and the transaction can be executed smoothly. The determination of whether the transaction execution time exceeds the preset threshold time may be performed at a fixed frequency, for example, the determination may be performed once every second, or the determination may be performed once every 0.5 seconds, and may be set according to specific situations.
And if the transaction execution time does not exceed the preset threshold time, continuing to execute the transaction operation until all the transaction operations are completely executed.
And S44, if the transaction execution time exceeds the preset threshold time, inquiring whether the transaction state of the transaction participation account is normal.
And if the transaction states of the transaction participation accounts are normal, continuing to execute the transaction operation until all the transaction operations are completely executed.
S44', if the transaction execution time exceeds the preset threshold time, inquiring whether the transaction category is cancelled.
If the transaction is not cancelled, the transaction operation is continuously executed. If the transaction category is queried to have been revoked, the transaction is terminated.
If the transaction execution time exceeds the preset threshold time, the abnormal condition is generated in the transaction process, and the abnormal condition needs to be inquired. Whether the transaction participation account is in a normal transaction state or not can be firstly inquired, and whether the transaction is cancelled or not can be firstly inquired. Step S44 and step S44' can be performed simultaneously without mutual interference. The order may also be set, or alternatively performed.
S45, if the transaction state of the transaction participation account is abnormal, judging whether the transaction participation account with the abnormal transaction state is in the frozen state. The abnormal transaction status of the transaction participation account may include various types, such as account balance with account blocked or with error in the ledger record, insufficient account balance due to account inventory, insufficient account inventory, and the like. It is common that the assets of the account are temporarily frozen, so this step first confirms whether the assets of the account with abnormal transaction status are frozen.
S46, if the transaction participation account with abnormal transaction state is in frozen state, sending an asset unfreezing request message to the transaction participation account with abnormal transaction state, and unfreezing the asset after receiving the asset unfreezing request by the transaction participation account with abnormal transaction state, and sending a feedback message of asset unfreezing at the same time. And if the abnormal transaction participation account feedback asset unfreezing message exists in the transaction state, continuing to execute transaction operation.
The present embodiment provides a detailed step of step S4, which lists several possible situations to be encountered for determination, such as the case where the account is frozen or the transaction is cancelled, and the present application is not limited in any way. The same and similar parts in the various embodiments in this specification may be referred to each other.
Claims (9)
1. A multiparty transaction information consistency maintenance method based on a block chain is characterized by comprising the following steps:
presetting at least one transaction processing intelligent contract, wherein each transaction processing intelligent contract corresponds to one transaction type; the transaction processing intelligent contract comprises a transaction participation account corresponding to the transaction category and a transaction amount allocation proportion corresponding to the transaction participation account, and any transaction category comprises a plurality of mutually related transactions;
when any transaction type occurs, calling the corresponding transaction processing intelligent contract;
checking the validity of the transaction participation account and the transaction processing smart contract;
if the transaction participation account and the transaction processing intelligent contract are both legal, executing all transaction operations in the transaction category, wherein the transaction operations comprise the charge-out operation and the charge-in operation of the transaction participation account;
according to the transaction amount distribution proportion corresponding to the transaction participation account, clearing transaction information corresponding to the transaction participation account at the same time;
updating the transaction information after clearing in the world state of the block chain;
if the number of the transactions is two, the transactions are respectively level 1 transactions and level 2 transactions, and the transaction participation accounts comprise a first account, a second account, a third account, a fourth account and a fifth account;
the first account is used as an initiator of the level 1 transaction, and the second account is used as a receiver of the level 1 transaction; the second account is used as an initiator of the level 2 transaction, and the third account, the fourth account and the fifth account are used as receivers of the level 2 transaction;
the transaction amount of the first account is the full amount; the transaction amounts of the second account, the third account, the fourth account and the fifth account are respectively products of the full amount and a first proportion, a second proportion, a third proportion and a fourth proportion;
the clearing of the transaction information corresponding to the transaction participation account at the same time according to the transaction amount distribution proportion corresponding to the transaction participation account comprises the following steps:
clearing the transaction information of the first account, the second account, the third account, the fourth account and the fifth account simultaneously according to the amount of the foot, the first proportion, the second proportion, the third proportion and the fourth proportion.
2. The blockchain-based multi-party transaction information consistency maintenance method according to claim 1, wherein the transaction information includes account balance, account inventory, order number, transaction amount, transaction number, and invocation result of the transaction processing intelligent contract.
3. The block chain-based multi-party transaction information consistency maintenance method according to claim 2, wherein the invoking result of the transaction processing intelligent contract is recorded in the world state by means of private key signature.
4. The method of claim 3, wherein the transaction information is stored in the world state in a K-V set, and all the transaction information corresponding to each account form one K-V set;
the K-V set is [ K1-V1, K2-V2, K3-V3, …, Ki-Vi ], wherein i is any positive integer, and each element in the K-V set represents one transaction information.
5. The blockchain-based multi-party transaction information consistency maintenance method according to claim 1, wherein the checking validity of transaction participation accounts and transaction processing intelligent contracts comprises:
judging whether the balance of the transaction participation account can meet the transaction category;
judging whether the signature of the transaction participation account is valid; the signature is a signature of a certificate of the transaction participation account on the related transaction;
judging whether the identification number of the transaction processing intelligent contract is correct or not;
and judging whether the identity of the transaction participation account is legal or not.
6. The blockchain-based multi-party transaction information consistency maintenance method according to claim 1, wherein if both the transaction participation account and the transaction processing smart contract are legal, all transaction operations in the transaction category are executed, including:
if the transaction participation account and the transaction processing intelligent contract are legal, executing all transaction operations in the transaction category;
timing the process of executing the transaction operation to obtain transaction execution time;
judging whether the transaction execution time exceeds a preset threshold time or not;
and if the transaction execution time does not exceed the preset threshold time, continuing to execute the transaction operation until all the transaction operations are completely executed.
7. The blockchain-based multi-party transaction information consistency maintenance method according to claim 6,
if the transaction execution time exceeds the preset threshold time, inquiring whether the transaction state of the transaction participation account is normal;
and if the transaction states of the transaction participation accounts are normal, continuing to execute the transaction operation until all the transaction operations are completely executed.
8. The blockchain-based multi-party transaction information consistency maintenance method according to claim 7,
if the transaction state of the transaction participation account is abnormal, judging whether the transaction participation account with the abnormal transaction state is in a frozen state or not;
if the transaction participation account with the abnormal transaction state is in the frozen state, sending an asset unfreezing request message to the transaction participation account with the abnormal transaction state;
and if the abnormal transaction participation account feedback asset unfreezing message exists in the transaction state, continuing to execute the transaction operation.
9. The blockchain-based multi-party transaction information consistency maintenance method according to claim 6,
if the transaction execution time exceeds the preset threshold time, inquiring whether the transaction category is cancelled;
and if the transaction category is not revoked, continuing to execute the transaction operation.
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