CN111127150A - Intelligent contract demand matching method and device based on block chain and computer equipment - Google Patents
Intelligent contract demand matching method and device based on block chain and computer equipment Download PDFInfo
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- CN111127150A CN111127150A CN201911337797.3A CN201911337797A CN111127150A CN 111127150 A CN111127150 A CN 111127150A CN 201911337797 A CN201911337797 A CN 201911337797A CN 111127150 A CN111127150 A CN 111127150A
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Abstract
The application relates to an intelligent contract demand matching method based on a block chain, a device, a computer device and a storage medium, which are used for carrying out keyword identification on historical contract information and historical demand information of a demand initiator to obtain a demand key point, matching out an initial intelligent contract meeting the demand of a user according to the demand key point of the user, and sending corresponding information and contract confirmation information to both contract participants so that the both contract participants can achieve consensus on the intelligent contract, when both contract participants complete cooperation for confirmation decision, sending encryption information carrying the contract confirmation information, carrying out decryption verification on the encryption information, creating the intelligent contract if verification is passed, ensuring the performability of the intelligent contract, and the whole process does not need the excessive energy of the user to select the intelligent contract and can quickly match out a proper contract according to the demand key point of the user, and the intelligent contract is reasonably established from multiple angles, so that the intelligent contract is efficiently and reasonably established.
Description
Technical Field
The present application relates to a blockchain technology, and in particular, to a method and an apparatus for matching requirements of an intelligent contract based on a blockchain, a computer device, and a storage medium.
Background
An intelligent contract is a computer protocol intended to propagate, validate or execute contracts in an informational manner. Smart contracts allow trusted transactions to be conducted without third parties, which transactions are traceable and irreversible.
Intelligent contracts are computer contracts, and it is a difficult process for contract participants to agree on contract terms in an intelligent contract. And the execution of the contract is dependent on computer readable code, meaning that the writing of the contract is dependent on the programming basis. In the process of writing an intelligent contract, due to the problems of poor flexibility and high potential safety hazard of the intelligent contract, the writing of the intelligent contract is limited, and secondly, when a user does not have programming capability, the user can select a proper contract only by spending time and energy on browsing a large number of contracts from an intelligent contract platform, and in the period, a computer needs to respond to a large number of user contract browsing operations, so that system resources are wasted. Therefore, the problem of low contract construction efficiency exists in the current writing or construction mode of intelligent contracts.
Disclosure of Invention
Therefore, it is necessary to provide an efficient block chain-based intelligent contract requirement matching method for solving the problem that the current writing or constructing mode of an intelligent contract is low in contract constructing efficiency.
An intelligent contract demand matching method based on a block chain comprises the following steps:
acquiring historical contract information and historical demand information of a demand initiator, and performing keyword identification on the historical contract information and the historical demand information to obtain demand key points;
carrying out keyword matching in a preset intelligent contract library according to the key points of the demands to obtain corresponding initial intelligent contracts and demand matching formulas;
sending a first contract confirmation message to a demand initiator, and sending a second contract confirmation message to a demand matching formula, wherein the first contract confirmation message carries an initial intelligent contract, and the second contract confirmation message carries a demand principal point;
when first encryption information and second encryption information which carry confirmed contract information are received, the first encryption information and the second encryption information are decrypted and verified, the first encryption information is generated by a demand initiator responding to the first contract confirmation information, and the second encryption information is generated by a demand matching party responding to the first contract confirmation information;
and if the decryption verification is passed, creating the target intelligent contract.
In one embodiment, the obtaining of the requirement gist of the requirement initiator includes:
receiving a contract construction request sent by a demand initiator, wherein the contract construction request carries an identity of the demand initiator;
searching historical contract information and historical demand information of a demand initiator according to the identity;
based on a natural language processing technology, performing word segmentation processing on the historical contract information and the historical demand information to obtain word segmentation results;
and carrying out keyword identification on the word segmentation result to identify corresponding demand key points.
In one embodiment, obtaining the corresponding initial intelligent contract according to the demand key point includes:
according to the key points of the requirements, fuzzy matching of key words is carried out in a preset intelligent contract library, and corresponding historical intelligent contracts are matched;
and screening the matched historical intelligent contract according to the preset priority screening condition to obtain an initial intelligent contract.
In one embodiment, after the decryption verification is passed, the method further includes:
searching whether corresponding qualification certification files exist in blocks of a block chain where a demand initiator and a demand matching party are located;
and if the corresponding qualification certification file exists, returning to the step of creating the target intelligent contract.
In one embodiment, after sending the initial intelligent contract and the first contract confirmation message to the demand initiator and sending the demand essence and the second contract confirmation message to the demand matching formula corresponding to the initial intelligent contract, the method further includes:
sending a feedback time limit notification message to the requirement initiator and the requirement matching formula, wherein the feedback time limit notification message is used for notifying the requirement initiator and the requirement matching formula to send the first encryption information and the second encryption information before the feedback time limit;
and if the first encryption information and/or the second encryption information are not received after the feedback time limit is exceeded, returning to the step of identifying the corresponding initial intelligent contract according to the key points of the demand.
In one embodiment, after sending the initial intelligent contract and the first contract confirmation message to the demand initiator and sending the demand essence and the second contract confirmation message to the demand matching formula corresponding to the initial intelligent contract, the method further includes:
and when receiving the first encryption information and/or the second encryption information carrying the negative contract information, sending a contract communication message to the demand initiator and the demand matching formula.
An intelligent contract demand matching apparatus based on block chains, the apparatus comprising:
the requirement acquisition module is used for acquiring historical contract information and historical requirement information of a requirement initiator, and performing keyword identification on the historical contract information and the historical requirement information to obtain a requirement main point;
the contract matching module is used for matching keywords in a preset intelligent contract library according to the key points of the requirements to obtain corresponding initial intelligent contracts and requirement matching formulas;
the data sending module is used for sending a first contract confirmation message to the requirement initiator and sending a second contract confirmation message to the requirement matching formula, wherein the first contract confirmation message carries an initial intelligent contract, and the second contract confirmation message carries a requirement principal point;
the decryption verification module is used for decrypting and verifying the first encryption information and the second encryption information when receiving the first encryption information and the second encryption information which carry the confirmed contract information, wherein the first encryption information is generated by a demand initiator responding to the first contract confirmation information, and the second encryption information is generated by a demand matching party responding to the first contract confirmation information;
and the contract construction module is used for creating a target intelligent contract if the decryption verification is passed.
In one embodiment, the apparatus further comprises:
and the credit qualification verification module is used for searching whether corresponding qualification certification files exist in the blocks of the block chain where the demand initiator and the demand matching formula are located, and returning to the step of creating the target intelligent contract if the corresponding qualification certification files exist.
A computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
acquiring historical contract information and historical demand information of a demand initiator, and performing keyword identification on the historical contract information and the historical demand information to obtain demand key points;
carrying out keyword matching in a preset intelligent contract library according to the key points of the demands to obtain corresponding initial intelligent contracts and demand matching formulas;
sending a first contract confirmation message to a demand initiator, and sending a second contract confirmation message to a demand matching formula, wherein the first contract confirmation message carries an initial intelligent contract, and the second contract confirmation message carries a demand principal point;
when first encryption information and second encryption information which carry confirmed contract information are received, the first encryption information and the second encryption information are decrypted and verified, the first encryption information is generated by a demand initiator responding to the first contract confirmation information, and the second encryption information is generated by a demand matching party responding to the first contract confirmation information;
and if the decryption verification is passed, creating the target intelligent contract.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
acquiring historical contract information and historical demand information of a demand initiator, and performing keyword identification on the historical contract information and the historical demand information to obtain demand key points;
carrying out keyword matching in a preset intelligent contract library according to the key points of the demands to obtain corresponding initial intelligent contracts and demand matching formulas;
sending a first contract confirmation message to a demand initiator, and sending a second contract confirmation message to a demand matching formula, wherein the first contract confirmation message carries an initial intelligent contract, and the second contract confirmation message carries a demand principal point;
when first encryption information and second encryption information which carry confirmed contract information are received, the first encryption information and the second encryption information are decrypted and verified, the first encryption information is generated by a demand initiator responding to the first contract confirmation information, and the second encryption information is generated by a demand matching party responding to the first contract confirmation information;
and if the decryption verification is passed, creating the target intelligent contract.
The intelligent contract demand matching method, the device, the computer equipment and the storage medium based on the block chain acquire the historical contract information and the historical demand information of a demand initiator, perform keyword recognition on the historical contract information and the historical demand information to obtain the demand key point, further combine with a keyword matching technology to match an initial intelligent contract and a demand matching formula which meet the demand of a user, and send corresponding information and contract confirmation information to both contract participants so that both the contract participants can achieve consensus on the intelligent contract, when both the contract participants complete the cooperation of the contract confirmation decision, when the encrypted information carrying the contract confirmation information is sent, the encrypted information is decrypted and verified, if the verification is passed, the intelligent contract is created, the performability of the intelligent contract is ensured, the whole process is realized, the user does not need to consume too much energy to select the intelligent contract, and the intelligent contract is reasonably created from multiple angles, the intelligent contract is efficiently and reasonably constructed.
Drawings
FIG. 1 is a diagram of an application environment of a blockchain-based intelligent contract requirement matching method in one embodiment;
FIG. 2 is a schematic flow diagram of a method for intelligent contract requirement matching based on blockchains in one embodiment;
FIG. 3 is a schematic flow chart diagram of a method for matching requirements of intelligent contracts based on blockchains in another embodiment;
FIG. 4 is a block chain-based intelligent contract requirement matching detailed flow diagram in another embodiment;
FIG. 5 is a block diagram of an intelligent contract requirement matching apparatus based on blockchains in one embodiment;
FIG. 6 is a block diagram of an apparatus for matching requirements of intelligent contracts based on blockchains in another embodiment;
FIG. 7 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The intelligent contract requirement matching method based on the block chain can be applied to the application environment shown in fig. 1. The blockchain network includes a demand initiator 102, a demand matching formula 104, and an intelligent contract platform system server 106 (hereinafter referred to as a server 106), where the demand initiator 102, the demand matching formula 104, and the intelligent contract platform system server 106 communicate with each other through the network, and both the demand initiator 102 and the demand matching formula 104 may be regarded as computer nodes, and only two contract participants (the demand initiator 102 and the demand matching formula 104) are shown in fig. 1, and may include a plurality of participants during specific implementation. In practical application, the demand initiator 102 may issue demand information and an intelligent contract in an intelligent contract platform system in advance, when the demand initiator 102 sends an intelligent contract construction request to the server 106, the server 106 obtains historical contract information and historical demand information of the demand initiator, performs keyword recognition on the historical contract information and the historical demand information to obtain a demand main point, performs keyword matching in a preset intelligent contract library according to the demand main point to recognize an initial intelligent contract and a demand matching formula corresponding to the demand main point, when a corresponding initial intelligent contract is obtained according to the demand main point, sends an initial intelligent contract and a first contract confirmation message to the demand initiator 102 and sends a demand and a second contract confirmation message to a demand main point matching formula 104 corresponding to the initial intelligent contract, when receiving the first encryption information and the second encryption information carrying the confirmation contract information, and performing decryption verification on the first encrypted information and the second encrypted information, wherein the first encrypted information is generated by the requirement initiator 102 in response to the first contract confirmation message, and the second encrypted information is generated by the requirement matching formula 104 in response to the first contract confirmation message, and if the decryption verification is passed, creating the target intelligent contract. The demand initiator 102 and the demand matching formula 104 may be, but not limited to, a server, various personal computers, a notebook computer, a smart phone, a tablet computer, and a portable wearable device, and the server 106 may be implemented by an independent server or a server cluster formed by a plurality of servers.
In one embodiment, as shown in fig. 2, an intelligent contract requirement matching method based on a blockchain is provided, which is described by taking the method as an example applied to the server in fig. 1, and includes the following steps:
and S100, acquiring historical contract information and historical demand information of a demand initiator, and performing keyword identification on the historical contract information and the historical demand information to obtain demand key points.
The first contractual party, i.e. the participant of the intelligent contract, may specifically be various roles such as a personal user, an enterprise, an organization, and the like, and it is worth explaining that the contract participants each have a blockchain communication module and can query or distribute blockchain information. The key elements in the demand information of the user are also key features for constructing the intelligent contract. For example, the demand point may be "amount" and "time" or the like. In this embodiment, the requirement main points may be that the historical contract information and the historical requirement information of the requirement initiator are obtained first, and then the keyword recognition is performed on the historical contract information and the historical requirement information to obtain information such as keywords and data extracted from the requirement main points.
In one embodiment, as shown in fig. 3, acquiring the requirement gist of the requirement initiator includes: step S120, receiving a contract construction request sent by a demand initiator, wherein the contract construction request carries an identity of the demand initiator, searching historical contract information and historical demand information of the demand initiator according to the identity, performing word segmentation processing on the historical contract information and the historical demand information based on a natural language processing technology to obtain a word segmentation result, performing keyword recognition on the word segmentation result, and recognizing a corresponding demand main point.
Specifically, the contract information related to the demand initiator may be an intelligent contract written by the demand initiator or a contract which is browsed by the demand initiator more frequently or a collected contract on the intelligent contract platform system. In specific implementation, the obtaining manner of the requirement key points of the requirement initiator may include: the method comprises the steps that a demand initiator issues demands (in a natural language form) in an intelligent contract platform system, if a user of the demand initiator has programming capacity, the intelligent contract can be actively issued on a platform, the issued demands and the intelligent contract are public to a block chain network where the demand initiator is located, the demand initiator sends a contract construction request to a server, the server responds to the request, according to an identity carried in the request, historical contract information and historical demand information of the demand initiator are searched in a preset intelligent contract library, word segmentation is conducted on the demand information by adopting a natural language processing task technology, then keyword recognition is conducted on fragment data obtained by word segmentation, and corresponding demand key points are extracted; or responding to the contract construction request, collecting contracts collected by a demand initiator in an intelligent contract platform system or recently browsed contracts in a preset intelligent contract library, selecting the contracts with the most browsing types or the most collecting types, performing semantic analysis on the contracts and extracting corresponding demand key points. For example, the demand information is "i need book reservation of 10000 books, budget 20 ten thousand", and the corresponding demand point is the amount- "10000", and the amount- "20 ten thousand". In specific implementation, semantic analysis is performed to extract essential points of the demand, and a first contract can be required to participate in paying a certain system fuel fee (namely, a commission fee). In the embodiment, the demand information is collected from multiple aspects, and the demand key points can be comprehensively and comprehensively extracted by combining the semantic analysis technology.
And S200, carrying out keyword matching in a preset intelligent contract base according to the key points of the requirements to obtain corresponding initial intelligent contracts and requirement matching formulas.
The requirement matching formula refers to another participant of the intelligent contract, and specifically can be various roles of individual users, enterprises, institutions and the like. The initial smart contract refers to a smart contract that matches the demand points. After the demand key points are obtained, initial intelligent contracts which accord with the demand key points are matched in a preset intelligent contract library according to the demand key points, and then the demand matching formula to which the intelligent contracts belong is linked according to the addresses of the matched intelligent contracts. Specifically, the identification process may be to match the demand points with the key words of the stock intelligent contracts in the preset intelligent contract library to obtain the corresponding intelligent contracts.
Step S300, a first contract confirmation message is sent to a requirement initiator, a second contract confirmation message is sent to a requirement matching formula, the first contract confirmation message carries an initial intelligent contract, and the second contract confirmation message carries a requirement key point.
The contract confirmation message is used for informing the message receiver whether the matched intelligent contract needs to be participated in or not, and the message requires the message receiver to send corresponding contract confirmation information, and the information fed back by the contract confirmation can be the agreement and cooperation or the questionable need to be further questioned for the operation. In practical application, the requirement matching formula is familiar to the use of the intelligent contract relative to the requirement initiator, taking the requirement matching formula as a supplier as an example, the requirement matching formula can express the available supply capability of the intelligent contract in a public intelligent contract mode, and the intelligent contract has a corresponding relation with the contract publisher. In another embodiment, the demand matching party may also publish the supply information in the form of natural language, indicating its supply capability. When a corresponding initial intelligent contract is obtained, a first contract confirmation message carrying the initial intelligent contract is sent to a demand initiator so that the demand initiator can know the identified intelligent contract and confirm whether to participate in signing of the identified intelligent contract, meanwhile, a second contract confirmation message carrying demand points is sent to a demand matching formula corresponding to the initial intelligent contract so that a demand matching party can know the corresponding demand and confirm whether to agree with signing of the contract with the first contract party, in the specific implementation, the demand key point and the second contract confirmation message can be sent to a public link address corresponding to the initial intelligent contract, and the public link address can be linked to the demand matching formula to which the initial intelligent contract belongs.
In one embodiment, as shown in fig. 3, obtaining the corresponding initial intelligent contract according to the demand point includes: and S220, performing fuzzy key word matching in a preset intelligent contract library according to the key points of the requirements to obtain corresponding historical intelligent contracts, and screening the matched historical intelligent contracts according to preset priority screening conditions to obtain initial intelligent contracts.
As described in the above embodiments, the essential points of the demand can be extracted by combining the fuzzy matching technology. Specifically, based on the key points of the requirements, fuzzy matching of keywords is performed in a preset intelligent contract library, historical intelligent contracts corresponding to the keywords are matched, and the matched historical intelligent contracts are screened according to preset priority screening conditions to obtain initial intelligent contracts. For example, when the demand source's demand point includes a quick response, a demand with a high handling fee is preferentially matched, among demands with the same handling fee, a demand with a pressing time is preferentially matched, and among demands with the same handling fee and time, a demand with a high monetary amount is preferentially matched. The screening conditions include, but are not limited to, the latest transaction term, the name and quantity of the product, the description information of the price, the credit rating and the amount of the demand matching formula, etc. In this embodiment, screening conditions and a keyword recognition technology are combined, and corresponding initial intelligent contracts can be flexibly obtained according to different requirements.
Step S400, when first encryption information and second encryption information which carry confirmed contract information are received, the first encryption information and the second encryption information are decrypted and verified, the first encryption information is generated by a demand initiator responding to the first contract confirmation information, and the second encryption information is generated by a demand matching party responding to the first contract confirmation information.
The blockchain is a product of combining a plurality of technologies, wherein the most important one is encryption and decryption. Encryption refers to a technique of generating a ciphertext from information using a key. Decryption is the technique of using a key to restore the ciphertext into readable information. At present, the key difference mainly includes symmetric encryption and asymmetric encryption. The most common application today is the use of asymmetric encryption to prevent data tampering. Asymmetric encryption in turn involves two different uses: first, the digital signature can be that the sender utilizes the private key to encrypt and sends the original text and the ciphertext, and the receiver utilizes the public key to decrypt and verify whether the decrypted information is consistent with the original text, namely, whether the sender sends the encrypted information can be confirmed. Secondly, data encryption. The sender utilizes the public key to encrypt and sends the ciphertext, and the receiver utilizes the private key to decrypt and obtain the transmission data. In this embodiment, the first encryption information and the second encryption information are both digital signatures, and the determination of the contract participant on the clauses and subclauses in the contract may be performed based on a contract confirmation message, which may be used to request the requirement initiator and the requirement matching party to send encryption information carrying information about whether the contract is confirmed or not, and when the contract participant receives information sent by the server, the contract participant may encrypt the contract confirmation information to be sent by using respective private keys to generate a digital signature, and send the digital signature and the contract confirmation information together to the server, and the server further decrypts and verifies the digital signature and the contract confirmation information.
And step S500, if the decryption verification is passed, creating a target intelligent contract.
When the intelligent contract issuing method is specifically implemented, decryption verification is conducted, namely whether received information is sent by a requirement initiator and a requirement matching party respectively is verified, whether the content of the sent information is tampered is verified, when the verification identity and the verification content are consistent, the requirement initiator and the requirement matching party are indicated to pass the decryption verification, the true accuracy and the credibility of the information issued by contract participants are guaranteed, and further, a logic can be constructed based on an initial intelligent contract and a preset contract to create a target intelligent contract.
In the intelligent contract demand matching method based on the block chain, the historical contract information and the historical demand information of a demand initiator are obtained, the historical contract information and the historical demand information are subjected to keyword recognition to obtain demand key points, further, the initial intelligent contract meeting the demand of a user is matched by combining a keyword matching technology, corresponding information and contract confirmation information are sent to both contract participating parties, so that both the contract participating parties can achieve consensus on the intelligent contract, when both the contract participating parties complete cooperation for contract confirmation decision, the encrypted information is decrypted and verified, the intelligent contract is established after verification, the performability of the intelligent contract is ensured, the whole process is completed, the user does not need to consume excessive selection energy to select the intelligent contract, and the proper contract can be matched quickly according to the demand key points of the user, and the intelligent contract is reasonably established from multiple angles, so that the intelligent contract is efficiently and reasonably established.
It is noted that the terms "first," "second," and the like, as used herein, are used for distinguishing between different objects and not necessarily for describing a particular order. Specifically, in the embodiments of the present application, "first" and "second" are used to distinguish objects such as encryption information and a contract confirmation message, but the above-mentioned objects are not limited to necessarily use these terms.
In one embodiment, as shown in fig. 4, after the decryption verification is passed, the method further includes: step S450, whether corresponding qualification certification files exist in the blocks of the block chain where the demand initiator and the demand matching party are located is searched, and if corresponding qualification certification files exist, the step of creating the target intelligent contract is returned.
In practical application, before the intelligent contract is created, the cost evaluation and the feasibility of the intelligent contract can be evaluated, and particularly, the credit qualification verification can be carried out on the demand initiator and the demand matching formula. The credit qualification verification comprises credit level verification and qualification verification, the credit level verification is used for ensuring the credit degree of the contract participants, the credit level of the contract participants can be acquired during specific implementation, if the credit level exceeds a preset credit level threshold value, the credit degree is high, otherwise, the credit degree is low, and the cooperation risk exists. The qualification certification is to ensure the true accuracy of the information issued by the contract participants. In practical application, when the enterprise wants to issue information, the enterprise is required to provide documents such as copy of fax license, and when the registration information of the enterprise is verified to be consistent with the information stated on the license, the enterprise is permitted to issue various information. Therefore, the qualification verification can be performed by whether the block of the block chain where the verification object is located has an effective qualification certification file. If the qualification certification file is provided, the qualification verification is passed, otherwise, the qualification verification is not passed. In the embodiment, the authenticity and the performability of the intelligent contract are ensured through credit qualification verification.
In one embodiment, as shown in fig. 4, after sending the initial intelligent contract and the first contract confirmation message to the demand initiator, and sending the demand essence and the second contract confirmation message to the demand matching formula corresponding to the initial intelligent contract, the method further includes: step S320, sending a feedback time limit notification message to the requirement initiator and the requirement matching formula, wherein the feedback time limit notification message is used for notifying the requirement initiator and the requirement matching formula to send the first encryption information and the second encryption information before the feedback time limit, and if the first encryption information and/or the second encryption information are not received even if the feedback time limit is exceeded, returning to the step of identifying the corresponding initial intelligent contract according to the requirement key points.
In practical application, in order to ensure timeliness of contract construction, a feedback deadline notification message may be sent to the demand initiator and the demand matching formula after sending information such as a contract confirmation message to the demand initiator and the demand matching formula, so that the demand initiator and the demand matching formula can feed back encryption information before a feedback deadline, and a process of contract construction is accelerated. If the feedback time limit is exceeded and the first encryption information and/or the second encryption information are not received, the appropriate contract is matched for the requirement main points of the requirement initiator again, and meanwhile, the feedback time limit can be prolonged. In this embodiment, the progress of contract construction can be effectively promoted by setting the feedback time limit.
In one embodiment, as shown in fig. 4, after sending the initial intelligent contract and the first contract confirmation message to the demand initiator, and sending the demand essence and the second contract confirmation message to the demand matching formula corresponding to the initial intelligent contract, the method further includes: step S420, when the first encryption information and/or the second encryption information carrying the negative contract information is received, sending a contract communication message to the requirement initiator and the requirement matching formula.
In practical application, when both contract participants have any party doubtful about details of the initial intelligent contract or do not want to participate in cooperation, the encrypted information carrying the negative contract information can be sent. When receiving the encryption information carrying the negative contract information, the system can be used as an intermediate transmitter to send contract communication information to both contract participants and transmit the doubtful situation of the contract of the opposite party to both parties so as to facilitate the communication of both parties and achieve consensus. After the contract participation parties reach the consensus, both contract construction requests can be initiated, the server responds to the contract construction requests and creates target intelligent contracts based on preset contract construction logic, so that the target intelligent contracts are executed according to the negotiated logic. In the embodiment, the contract communication message is sent to both contract participants, so that the smooth construction of the contract can be ensured, the contract construction efficiency is improved, and the user experience is improved.
It should be understood that although the various steps in the flow charts of fig. 2-4 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-4 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 5, there is provided a blockchain-based intelligent contract requirement matching apparatus, including: a requirement acquisition module 510, a contract matching module 520, a data transmission module 530, a decryption verification module 540, and a contract construction module 550, wherein:
the requirement obtaining module 510 is configured to obtain historical contract information and historical requirement information of a requirement initiator, and perform keyword recognition on the historical contract information and the historical requirement information to obtain a requirement main point.
And the contract matching module 520 is used for performing keyword matching in a preset intelligent contract library according to the key points of the requirements to obtain corresponding initial intelligent contracts and requirement matching formulas.
The data sending module 530 is configured to send a first contract confirmation message to the demand initiator, and send a second contract confirmation message to the demand matching formula, where the first contract confirmation message carries the initial intelligent contract and the second contract confirmation message carries the demand key.
And a decryption verification module 540, configured to decrypt and verify the first encrypted information and the second encrypted information when receiving the first encrypted information and the second encrypted information that carry the contract confirmation information, where the first encrypted information is generated by the requirement initiator responding to the first contract confirmation message, and the second encrypted information is generated by the requirement matching party responding to the first contract confirmation message.
And a contract construction module 550, configured to create a target intelligent contract if the decryption verification passes.
In one embodiment, the requirement obtaining module 510 is further configured to receive a contract construction request sent by a requirement initiator, where the contract construction request carries an identity of the requirement initiator, search historical contract information and historical requirement information of the requirement initiator according to the identity, perform word segmentation on the historical contract information and the historical requirement information based on a natural language processing technology to obtain a word segmentation result, perform keyword recognition on the word segmentation result, and identify a corresponding requirement point.
In one embodiment, the contract matching module 520 is further configured to perform fuzzy matching of keywords in a preset intelligent contract library according to the key points of the demand, match a corresponding historical intelligent contract, and filter the matched historical intelligent contract according to preset priority filtering conditions to obtain an initial intelligent contract.
In one embodiment, as shown in fig. 6, the block chain-based intelligent contract requirement matching apparatus further includes a credit qualification verification module 560, configured to search whether corresponding qualification certification files exist in the blocks of the block chain where the requirement initiator and the requirement matching party are located, and if the corresponding qualification certification files exist, return to the step of creating the target intelligent contract.
In one embodiment, as shown in fig. 6, the block chain-based intelligent contract requirement matching apparatus further includes a feedback notification module 570, configured to send a feedback duration notification message to the requirement initiator and the requirement matching formula, where the feedback duration notification message is used to notify the requirement initiator and the requirement matching formula to send the first encryption information and the second encryption information before the feedback duration, and if the first encryption information and/or the second encryption information is not received after the feedback duration, return to the step of identifying the corresponding initial intelligent contract according to the requirement point.
In one embodiment, as shown in fig. 6, the intelligent contract demand matching apparatus based on a block chain further includes a communication reminding module 580, configured to send a contract communication message to the demand initiator and the demand matching formula when receiving the first encryption information and/or the second encryption information carrying the negative contract information.
For specific definition of the intelligent contract requirement matching device based on the block chain, reference may be made to the above definition of the intelligent contract requirement matching method based on the block chain, and details are not described here. The modules in the above intelligent contract demand matching device based on block chains may be implemented in whole or in part by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 7. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer equipment is used for storing data such as historical intelligent contracts, demand key points, screening conditions and the like. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a blockchain-based intelligent contract requirement matching method.
Those skilled in the art will appreciate that the architecture shown in fig. 7 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program: acquiring historical contract information and historical demand information of a demand initiator, performing keyword recognition on the historical contract information and the historical demand information to obtain a demand key point, performing keyword matching in a preset intelligent contract library according to the demand key point to obtain a corresponding initial intelligent contract and a demand matching formula, sending a first contract confirmation message to the demand initiator, and sending a second contract confirmation message to the demand matching formula, wherein the first contract confirmation message carries the initial intelligent contract, the second contract confirmation message carries the demand key point, when receiving first encryption information and second encryption information which carry the confirmation contract information, the first encryption information and the second encryption information are decrypted and verified, the first encryption information is generated by the demand initiator responding to the first contract confirmation message, the second encryption information is generated by the demand matching party responding to the first contract confirmation message, and if the decryption verification is passed, creating the target intelligent contract.
In one embodiment, the processor, when executing the computer program, further performs the steps of: receiving a contract construction request sent by a demand initiator, wherein the contract construction request carries an identity of the demand initiator, searching historical contract information and historical demand information of the demand initiator according to the identity, performing word segmentation processing on the historical contract information and the historical demand information based on a natural language processing technology to obtain a word segmentation result, performing keyword recognition on the word segmentation result, and recognizing a corresponding demand main point.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and according to the key points of the requirements, fuzzy matching of key words is carried out in a preset intelligent contract base, corresponding historical intelligent contracts are matched, and the matched historical intelligent contracts are screened according to preset priority screening conditions to obtain initial intelligent contracts.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and searching whether the blocks of the block chain where the demand initiator and the demand matching party are located have corresponding qualification certification files, and if the corresponding qualification certification files exist, returning to the step of creating the target intelligent contract.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and sending a feedback time limit notification message to the requirement initiator and the requirement matching formula, wherein the feedback time limit notification message is used for notifying the requirement initiator and the requirement matching formula to send the first encryption information and the second encryption information before the feedback time limit, and if the first encryption information and/or the second encryption information are not received even if the feedback time limit is exceeded, returning to the step of identifying the corresponding initial intelligent contract according to the requirement key points.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and when receiving the first encryption information and/or the second encryption information carrying the negative contract information, sending a contract communication message to the demand initiator and the demand matching formula.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which when executed by a processor performs the steps of: acquiring historical contract information and historical demand information of a demand initiator, performing keyword recognition on the historical contract information and the historical demand information to obtain a demand key point, performing keyword matching in a preset intelligent contract library according to the demand key point to obtain a corresponding initial intelligent contract and a demand matching formula, sending a first contract confirmation message to the demand initiator, and sending a second contract confirmation message to the demand matching formula, wherein the first contract confirmation message carries the initial intelligent contract, the second contract confirmation message carries the demand key point, when receiving first encryption information and second encryption information which carry the confirmation contract information, the first encryption information and the second encryption information are decrypted and verified, the first encryption information is generated by the demand initiator responding to the first contract confirmation message, the second encryption information is generated by the demand matching party responding to the first contract confirmation message, and if the decryption verification is passed, creating the target intelligent contract.
In one embodiment, the computer program when executed by the processor further performs the steps of: receiving a contract construction request sent by a demand initiator, wherein the contract construction request carries an identity of the demand initiator, searching historical contract information and historical demand information of the demand initiator according to the identity, performing word segmentation processing on the historical contract information and the historical demand information based on a natural language processing technology to obtain a word segmentation result, performing keyword recognition on the word segmentation result, and recognizing a corresponding demand main point.
In one embodiment, the computer program when executed by the processor further performs the steps of: and according to the key points of the requirements, fuzzy matching of key words is carried out in a preset intelligent contract base, corresponding historical intelligent contracts are matched, and the matched historical intelligent contracts are screened according to preset priority screening conditions to obtain initial intelligent contracts.
In one embodiment, the computer program when executed by the processor further performs the steps of: and searching whether the blocks of the block chain where the demand initiator and the demand matching party are located have corresponding qualification certification files, and if the corresponding qualification certification files exist, returning to the step of creating the target intelligent contract.
In one embodiment, the computer program when executed by the processor further performs the steps of: and sending a feedback time limit notification message to the requirement initiator and the requirement matching formula, wherein the feedback time limit notification message is used for notifying the requirement initiator and the requirement matching formula to send the first encryption information and the second encryption information before the feedback time limit, and if the first encryption information and/or the second encryption information are not received even if the feedback time limit is exceeded, returning to the step of identifying the corresponding initial intelligent contract according to the requirement key points.
In one embodiment, the computer program when executed by the processor further performs the steps of: and when receiving the first encryption information and/or the second encryption information carrying the negative contract information, sending a contract communication message to the demand initiator and the demand matching formula.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to a computer program, which can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A blockchain-based intelligent contract demand matching method, the method comprising:
acquiring historical contract information and historical demand information of a demand initiator, and performing keyword identification on the historical contract information and the historical demand information to obtain demand key points;
carrying out keyword matching in a preset intelligent contract library according to the demand key points to obtain corresponding initial intelligent contracts and demand matching formulas;
sending a first contract confirmation message to the demand initiator, and sending a second contract confirmation message to the demand matching formula, wherein the first contract confirmation message carries an initial intelligent contract, and the second contract confirmation message carries the demand key;
when first encryption information and second encryption information which carry confirmed contract information are received, the first encryption information and the second encryption information are decrypted and verified, the first encryption information is generated by the requirement initiator responding to the first contract confirmation information, and the second encryption information is generated by the requirement matching formula responding to the second contract confirmation information;
and if the decryption passes the verification, creating a target intelligent contract.
2. The intelligent contract demand matching method based on the block chain according to claim 1, wherein the obtaining of the historical contract information and the historical demand information of the demand initiator, and performing keyword recognition on the historical contract information and the historical demand information to obtain the demand key point comprises:
receiving a contract construction request sent by the demand initiator, wherein the contract construction request carries the identity of the demand initiator;
searching historical contract information and historical demand information of the demand initiator according to the identity;
performing word segmentation processing on the historical contract information and the historical demand information to obtain word segmentation results;
and carrying out keyword identification on the word segmentation result, and identifying corresponding demand key points.
3. The intelligent contract demand matching method based on the block chain as claimed in claim 1, wherein the key word matching in a preset intelligent contract library according to the demand key points to obtain the corresponding initial intelligent contract comprises:
according to the key points of the requirements, fuzzy matching of key words is carried out in a preset intelligent contract library, and corresponding historical intelligent contracts are matched;
and screening the matched historical intelligent contract according to the preset priority screening condition to obtain an initial intelligent contract.
4. The intelligent contract requirement matching method based on the block chain as claimed in claim 1, wherein after the decryption verification is passed, further comprising:
searching whether corresponding qualification certification files exist in the blocks of the block chain where the demand initiator and the demand matching formula are located;
and if the corresponding qualification certification file exists, returning to the step of creating the target intelligent contract.
5. The method for matching demand of intelligent contracts based on block chains according to claim 1, wherein after the sending the initial intelligent contract and the first contract confirmation message to the demand initiator and the sending the demand essence and the second contract confirmation message to the demand matching formula corresponding to the initial intelligent contract, the method further comprises:
sending a feedback time limit notification message to the demand initiator and the demand matching formula, wherein the feedback time limit notification message is used for notifying the demand initiator and the demand matching formula to send first encryption information and second encryption information before a feedback time limit;
and if the first encryption information and/or the second encryption information are not received after the feedback time limit is exceeded, returning to the step of identifying the corresponding initial intelligent contract according to the requirement key points.
6. The method for matching demand of intelligent contracts based on block chains according to claim 1, wherein after the sending the initial intelligent contract and the first contract confirmation message to the demand initiator and the sending the demand essence and the second contract confirmation message to the demand matching formula corresponding to the initial intelligent contract, the method further comprises:
and when first encryption information and/or second encryption information carrying negative contract information are/is received, transmitting a contract communication message to the demand initiator and the demand matching formula.
7. An intelligent contract demand matching apparatus based on block chains, the apparatus comprising:
the system comprises a demand acquisition module, a demand generation module and a demand management module, wherein the demand acquisition module is used for acquiring historical contract information and historical demand information of a demand initiator, and performing keyword identification on the historical contract information and the historical demand information to obtain demand key points;
the contract matching module is used for matching keywords in a preset intelligent contract library according to the required key points to obtain corresponding initial intelligent contracts and required matching formulas;
a data sending module, configured to send a first contract confirmation message to the demand initiator, and send a second contract confirmation message to the demand matching formula, where the first contract confirmation message carries an initial intelligent contract, and the second contract confirmation message carries the demand principal point;
the decryption verification module is used for decrypting and verifying first encryption information and second encryption information when the first encryption information and the second encryption information which carry contract confirmation information are received, wherein the first encryption information is generated by the requirement initiator responding to the first contract confirmation information, and the second encryption information is generated by the requirement matching party responding to the first contract confirmation information;
and the contract construction module is used for creating a target intelligent contract if the decryption passes the verification.
8. The apparatus according to claim 7, further comprising:
and the credit qualification verification module is used for searching whether corresponding qualification certification files exist in the blocks of the block chain where the demand initiator and the demand matching formula are located, and returning to the step of creating the target intelligent contract if the corresponding qualification certification files exist.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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