CN111292041B - Electronic contract generation method, device, equipment and storage medium - Google Patents
Electronic contract generation method, device, equipment and storage medium Download PDFInfo
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- CN111292041B CN111292041B CN202010098189.8A CN202010098189A CN111292041B CN 111292041 B CN111292041 B CN 111292041B CN 202010098189 A CN202010098189 A CN 202010098189A CN 111292041 B CN111292041 B CN 111292041B
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- G06Q10/00—Administration; Management
- G06Q10/08—Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
- G06Q10/083—Shipping
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/18—Legal services; Handling legal documents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Abstract
The invention discloses an electronic contract generation method, device, equipment and storage medium. The agreement of the carrier, the cargo owner and the platform is stored on the blockchain in the form of an electronic contract by referring to an order signing agreement program generated by a blockchain technology, nodes of the blockchain simultaneously comprise notarized department nodes approved by laws, all legal approval information of the signed contract can be searched on the blockchain through unique contract numbers, the contract is ensured not to be tampered by any party, meanwhile, the convenient management of the electronic contract is realized, the electronic contract interaction behavior of a user can be effectively monitored, and the occurrence of the believing losing behavior is avoided to the greatest extent. Further guaranteeing the safety of the electronic contract and preventing the leakage of the real information of the user.
Description
Technical Field
The present invention relates to the field of electronic contract technologies, and in particular, to a method, an apparatus, a device, and a storage medium for generating an electronic contract.
Background
With the continued development of economies, the number of contracts signed in commercial campaigns has increased dramatically. The traditional transaction activities generally carry out signing of paper contracts, but with the continuous popularization of online transactions, electronic contracts are increasingly used, and signing of the electronic contracts is an agreement between two or more parties for setting up, changing and ending property civil right obligations in an electronic form through an electronic information network. Traditional electronic contracts, including EDI, E-mail, often require third party servers, data centers, etc. to manage, and there is a risk of leakage of personal information. Particularly in the field of online ordering of freight platforms on the market, due to leakage of electronic contracts or irregardless of inability to monitor, the platform cannot give an effective right-keeping voucher to the shipper or carrier in case of the shipper or carrier violating the agreement and incompletely fulfilling the order agreement.
Disclosure of Invention
The invention mainly aims to solve the technical problems that the existing electronic contract signing and management mode lacks credit arrangement and has lower safety.
The first aspect of the present invention provides an electronic contract generation method, which includes:
compiling an order subscription agreement program of a platform based on a block chain technology; the order signing protocol program is used for signing between a carrier, a cargo owner and the platform of the order;
acquiring order information selected by the carrier on the platform;
generating an electronic contract among the carrier, the cargo owner and the platform according to the order information through the order signing agreement program, and notifying the carrier and the cargo owner to sign;
and converting the signed electronic contract into a PDF file containing an electronic chapter, and sending the PDF file to a legal notarization department node on the blockchain for visual storage.
Optionally, in a first implementation manner of the first aspect of the present invention, after the generating, by the order subscription agreement procedure, an electronic contract between the carrier, the owner and the platform according to the order information, and notifying the carrier and the owner to sign up, the method further includes:
The identity information of the carrier and the selected order quotation are subjected to encryption operation by adding a preset first random number, so that second party information is obtained;
the identity information of the goods owner and the selected final quotation are added with a preset second random number to carry out encryption operation, so that first party information is obtained;
and marking the first party information and the second party information by the platform through a time marking method, and storing the first party information and the second party information into corresponding nodes on the blockchain.
Optionally, in a second implementation manner of the first aspect of the present invention, the time stamping method seals a trusted time stamp for the order subscription agreement procedure calling country time service center interface.
Optionally, in a third implementation manner of the first aspect of the present invention, before the sending the PDF file to the notarized office node approved by law on the blockchain for visual storage, the method further includes:
extracting contractor information of the second party from the PDF file;
generating and executing a subcontract according to the second party information and the contractor information;
and setting the executing authority of the public certificate department node of the blockchain to the PDF file according to the executing subcontract and contract terms in the PDF file.
Optionally, in a fourth implementation manner of the first aspect of the present invention, the visually storing in the notarization node that sends the PDF file to the legal approval on the blockchain includes:
adding a preset third random number to the PDF file, and carrying out hash operation through a hash algorithm to obtain a first hash value;
acquiring the first party information and the signature information of the platform, and re-signing the first hash value to generate a second hash value;
and sending the second hash value to a notarized department node appointed in the blockchain for visual storage.
Optionally, in a fifth implementation manner of the first aspect of the present invention, after the sending the PDF file to the notarized office node approved by law on the blockchain for visual storage, the method further includes:
generating a record subcontract according to the visual storage mode of the blockchain to the PDF file; the record subcontection is provided with a self-filling information item, a selection information item, an introduction information item, a random number information item and a selection storage mode information item, and identity verification is carried out by filling the record subcontection when the PDF file is called or executed each time.
Optionally, in a sixth implementation manner of the first aspect of the present invention, the performing the authentication by filling in the recording subcontext is implemented by the following procedures:
acquiring information in the self-filling information item, the selection information item, the annex information item, the random number information item and the selection storage mode information item through the order subscription agreement program;
carrying out hash calculation on the information to obtain abstract hash;
signing the abstract hash according to a preset private key to obtain a digital signature;
encrypting the data signature together with the information and the abstract hash by using a public key provided in the contractor information of the second party in the PDF file, and sending the encrypted information to the first party or the platform for confirmation;
and generating a record subcontract from the confirmed information, and sending the record subcontract to the blockchain for storage.
A second aspect of the present invention provides an electronic contract generation apparatus including:
the program generation module is used for compiling an order subscription protocol program of the platform based on a blockchain technology; the order signing agreement program is used for signing the orders among the carriers, the owners and the platform;
The acquisition module is used for acquiring order information selected by the carrier on the platform;
the contract generation module is used for generating an electronic contract among the carrier, the cargo owner and the platform according to the order information through the order signing agreement procedure and notifying the carrier and the cargo owner to sign;
and the storage module is used for converting the signed electronic contract into a PDF file containing the electronic chapter and sending the PDF file to a notarization department node approved by law on the blockchain for visual storage.
Optionally, in a first implementation manner of the second aspect of the present invention, the electronic contract generating apparatus further includes an information marking module, which is specifically configured to:
the identity information of the carrier and the selected order quotation are subjected to encryption operation by adding a preset first random number, so that second party information is obtained;
the identity information of the goods owner and the selected final quotation are added with a preset second random number to carry out encryption operation, so that first party information is obtained;
and marking the first party information and the second party information by the platform through a time marking method, and storing the first party information and the second party information into corresponding nodes on the blockchain.
Optionally, in a second implementation manner of the second aspect of the present invention, the time stamping method seals a trusted time stamp for the order subscription agreement procedure calling country time service center interface.
Optionally, in a third implementation manner of the second aspect of the present invention, the electronic contract generating apparatus further includes an execution module, which is specifically configured to:
extracting contractor information of the second party from the PDF file;
generating and executing a subcontract according to the second party information and the contractor information;
and setting the executing authority of the public certificate department node of the blockchain to the PDF file according to the executing subcontract and contract terms in the PDF file.
Optionally, in a fourth implementation manner of the second aspect of the present invention, the information marking module includes a hash calculation unit and a certificate storage unit, where:
the hash calculation unit is used for adding a preset third random number to the PDF file, and performing hash operation through a hash algorithm to obtain a first hash value; the first party information and the signature information of the platform are obtained, and the first hash value is signed again to generate a second hash value;
and the certification unit is used for sending the second hash value to a designated notarization node in the blockchain for visual storage.
Optionally, in a fifth implementation manner of the second aspect of the present invention, the electronic contract generating apparatus further includes a verification module, which is specifically configured to:
generating a record subcontract according to the visual storage mode of the blockchain to the PDF file; the record subcontection is provided with a self-filling information item, a selection information item, an introduction information item, a random number information item and a selection storage mode information item, and identity verification is carried out by filling the record subcontection when the PDF file is called or executed each time.
Optionally, in a sixth implementation manner of the first aspect of the present invention, the performing the authentication by filling in the recording subcontext is implemented by the following procedures:
acquiring information in the self-filling information item, the selection information item, the annex information item, the random number information item and the selection storage mode information item through the order subscription agreement program;
carrying out hash calculation on the information to obtain abstract hash;
signing the abstract hash according to a preset private key to obtain a digital signature;
encrypting the data signature together with the information and the abstract hash by using a public key provided in the contractor information of the second party in the PDF file, and sending the encrypted information to the first party or the platform for confirmation;
And generating a record subcontract from the confirmed information, and sending the record subcontract to the blockchain for storage.
A third aspect of the present invention provides an electronic contract generation apparatus including: a memory and at least one processor, the memory having instructions stored therein, the memory and the at least one processor being interconnected by a line; the at least one processor invokes the instructions in the memory to cause the electronic contract generating apparatus to perform the electronic contract generating method described above.
A fourth aspect of the present invention provides a computer-readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform the above-described electronic contract generation method.
According to the technical scheme provided by the invention, the electronic contract among the carrier, the cargo owner and the platform is generated according to the order information by acquiring the order information selected by the carrier on the platform and an order signing agreement procedure, the carrier and the cargo owner are informed to sign, the signed electronic contract is converted into a PDF file containing the electronic chapter, and the PDF file is sent to a legal approved notarization node on the blockchain for visual storage; the method stores the agreements of the carrier, the shipper and the platform on the blockchain in the form of electronic contracts by referring to the blockchain technology, nodes of the blockchain simultaneously comprise legal approved notarization department nodes, all legal approved information of the signing contract can be searched on the blockchain through unique contract numbers, the contract is ensured not to be tampered by any party, meanwhile, the convenient management of the electronic contract is realized, the electronic contract interaction behavior of a user can be effectively monitored, and the occurrence of the believing losing behavior is avoided to the greatest extent. Further guaranteeing the safety of the electronic contract and preventing the leakage of the real information of the user.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of an electronic contract generating method according to an embodiment of the present invention;
FIG. 2 is a diagram showing a second embodiment of an electronic contract generation method according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating a third embodiment of an electronic contract generation method according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a fourth embodiment of an electronic contract generation method according to an embodiment of the present invention;
FIG. 5 is a schematic view of a first embodiment of an electronic contract generating apparatus in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram of a second embodiment of an electronic contract generating apparatus in accordance with an embodiment of the present invention;
fig. 7 is a schematic diagram of the structure of an embodiment of the electronic contract generating apparatus of the present invention.
Detailed Description
The embodiment of the invention provides an electronic contract generation method, an electronic contract generation device, electronic contract generation equipment and a storage medium, wherein the electronic contract generation method comprises the following steps: acquiring order information selected by the carrier on the platform, generating an electronic contract between the carrier, a cargo owner and the platform according to the order information through an order signing agreement program, notifying the carrier and the cargo owner to sign, converting the signed electronic contract into a PDF file containing the electronic chapter, and sending the PDF file to a legal approved notarization department node on the blockchain for visual storage; the generation mode can save the agreements of the carrier, the shipper and the platform on the blockchain in the form of an electronic contract, the nodes of the blockchain simultaneously comprise legal approved notarization department nodes, all legal approved information of the same signed contract can be searched on the blockchain through a unique contract number, the contract is ensured not to be tampered by any party, meanwhile, the convenient management of the electronic contract is realized, the electronic contract interaction behavior of a user can be effectively monitored, and the occurrence of the believing losing behavior is avoided to the greatest extent.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
For ease of understanding, a specific flow of an embodiment of the present invention is described below with reference to fig. 1, where an embodiment of an electronic contract generating method according to an embodiment of the present invention includes:
101. compiling an order subscription agreement program of a platform based on a block chain technology;
it can be appreciated that the order contract agreement procedure is used to fulfill the contract between the carrier, the owner and the platform of the order; the execution subject of the method embodiment of the present invention may be an electronic contract generating device, or may be a terminal, a server, or an order distribution system, which is not limited herein. The embodiment of the invention is specifically described by taking a server as an execution main body as an example.
In this embodiment, when the order contract signing agreement procedure is written, the contract content may be communicated on line or off line by each signing party, and then the contract initiator writes the corresponding order contract signing agreement procedure according to the finally determined contract template and each signing party, and deploys the order contract signing agreement procedure to each node of the blockchain. When the order contract signing protocol program is deployed, an initialization interface of the order contract signing protocol program is called, and information of the same content and contract signing parties is initially combined. Each signing party invokes a query interface of the order signing protocol program to confirm the content of the contract without errors, and invokes a signing interface of the intelligent contract to realize digital signature authentication signing.
In practical application, the order contract signing agreement program can also be a code program or a contract electronic template program, and the information generated by each node in the program is stored in a blockchain by introducing a blockchain technology, so that the blockchain storage of electronic contract generation is realized.
102. Acquiring order information selected by the carrier on the platform;
in this embodiment, the platform is understood to be any type of electronic device such as a mobile phone, a tablet computer, a smart watch, etc. used by a contract participant (including a contract provider and a contract consumer), which is not limited in this specification. The contractual participant can interact with blockchain nodes of electronic devices accessed to other participants through clients logging in to registered accounts on the electronic devices.
In practical application, after receiving the source demand issued by the carrier, the carrier accesses the platform or server for issuing the demand by the client to offer, the carrier selects the corresponding carrier according to the offer, and after selecting, the server obtains information of the carrier and information of the order by the client of the carrier, wherein the information of the order comprises the order type, tools of the required manifest and the like.
103. Generating an electronic contract among the carrier, the cargo owner and the platform according to the order information through the order signing agreement program, and notifying the carrier and the cargo owner to sign;
in this embodiment, after the carrier is determined, the server modifies the order subscription agreement procedure according to the information of the order, to obtain a subscription procedure corresponding to the order, and starts the procedure to connect the carrier, the carrier and the notary to sign the contract, where in practical application, the notary is a platform or a legal or processor of the platform.
In practical application, before the three-party signing is connected, information and order information of the three-party are acquired, an electronic contract template is generated, and the three-party signing of the formal electronic contract is connected based on the electronic contract template.
Further, for the generation of the electronic contract template, the electronic contract template can be modified by the shipper party according to the information of the selected carrier, and then uploaded to a platform for releasing the demand of the goods source, and the platform (namely a server) informs the three parties to sign the contract.
104. And converting the signed electronic contract into a PDF file containing an electronic chapter, and sending the PDF file to a legal notarization department node on the blockchain for visual storage.
In this embodiment, after signing, the platform may generate an electronic contract conforming to legal relationships, which may be specifically implemented by the following procedures:
step 1, a contract signing initiator uploads a signed electronic contract;
the process is specifically that in an electronic contract online signing system based on a blockchain technology, a business party is used as a contract signing initiator, a corresponding electronic contract can be configured in the system, uploading of files in various formats such as Word, PDF and the like is supported, and the system records subcontract initiator and contract information into a blockchain.
The contract initiator signs the contract by using the personal private key and the electronic signature, after the contract is signed, the initiator designates the signing party of the contract, the system sends the contract to the client side of each signing party, and initiates a contract signing request to the signing party, and identity information and associated information of both sides of the contract signing are recorded in the blockchain.
Step 2, signing an electronic contract by a contract signing party;
that is, the signing party performs real-name authentication and uploads an electronic signature to ensure the authenticity and validity of the identity of the signing party, and records the information of the signing party of the subcontract into the blockchain; after the business party and the signing party complete contract signing in the system, the business party can log in the signing system at any time to check and download the contract; the whole signing flow is recorded on the blockchain completely, the contract and signing information is not tamperable and traceable, and effective responsibilities can be carried out through the blockchain when the conditions of the same dispute and the like occur later.
Step 3, the contract signing parties verify the electronic contract
In practical application, after signing the contract, the system carries out hash calculation on the signed contract, and writes the hash value into the blockchain, wherein the data written into the blockchain has the characteristic of non-falsification; the business side and the contracting side can store the signed contract file locally or store the signed contract file to other cloud servers in a contract downloading mode, when a certification requirement appears, the hash of the contract file stored by the business side and the contracting side is calculated firstly, then the hash stored on the blockchain is compared, and if the two are consistent, the contract can be proved to be not tampered.
In the technical scheme provided by the embodiment of the invention, electronic contract signing and storage are controlled through a blockchain technology, and the electronic contract between the carrier, the cargo owner and the platform is generated by the order signing protocol program of the platform written through the blockchain technology, and the carrier and the cargo owner are informed to sign; converting the signed electronic contract into a PDF file containing an electronic chapter, and sending the PDF file to a notarization department node approved by law on the blockchain for visual storage; the storage of the blockchain ensures that each order on the platform is a valid order approved by law, the later breach of responsibility is facilitated, the benefits of the related parties of the platform are ensured, meanwhile, the nodes of the blockchain simultaneously comprise notarized nodes approved by law, all legal approval information of signing the contract can be searched on the blockchain through a unique contract number, and the contract is ensured not to be tampered by any party.
Referring to fig. 2, another embodiment of the method for generating an electronic contract according to the present invention includes:
201. acquiring order information selected by the carrier on the platform;
202. generating an electronic contract among the carrier, the cargo owner and the platform according to the order information through the order signing agreement program, and notifying the carrier and the cargo owner to sign;
In this step, the order contract agreement procedure is written based on blockchain technology for realizing the contract between the carrier, the shipper and the platform of the order.
In practical application, the order contract signing agreement procedure may be written and generated in real time, for example, by setting a general electronic contract template, generating a signing procedure based on the electronic contract template, and then modifying the electronic contract template according to a signing request of the electronic contract, so as to obtain an electronic contract draft, specifically:
by receiving the electronic contract generation request, a signing procedure is obtained based on the request and the electronic contract template, that is, the electronic contract generation request is received, the first user and the second user negotiate to draft the electronic contract through negotiation communication (for example, through a platform), and submit the electronic contract generation request, the authentication node authenticates the first user and the second user, joins the first user and the second user into the electronic contract blockchain node after the first user and the second user pass the authentication, generates virtual users for the first user and the second user, and obtains the signing procedure according to the negotiation result.
Further, in the process of signing an electronic contract, the first user and the second user complete the signing process of the electronic contract through the virtual user contract, and record and synchronize the electronic contract to a storage node of the electronic contract same blockchain.
In this embodiment, in order to further improve legal effect and security of the electronic contract, while signing to generate the electronic contract, a blockchain credit rating is set in the electronic contract, and credit rating blockchain nodes monitor and manage credit levels of the first and second users in real time, if it is monitored that the first and second users have illegal actions in the electronic contract interaction process, the protocol of the first and second user electronic contracts is terminated, and other nodes in the blockchain are informed of the illegal actions in a manner of not revealing real information of the first and second users, and recording of the interaction of the current electronic contract is performed.
203. The identity information of the carrier and the selected order quotation are subjected to encryption operation by adding a preset first random number, so that second party information is obtained;
204. the identity information of the goods owner and the selected final quotation are added with a preset second random number to carry out encryption operation, so that first party information is obtained;
205. marking the first side information and the second side information by the platform through a time marking method, and storing the first side information and the second side information into corresponding nodes on the block chain;
it can be appreciated that the time stamping method seals a trusted time stamp for the order subscription agreement procedure call country time service center interface. And for the steps 203-205, the calculated information is evidence storage, information of both parties is extracted, preparation can be made for subsequent contract access records, and in practical application, the information of the contractor at the same time of signing an electronic contract is processed by the information of the party B, and the information of other linkage persons or responsible persons of the party B is also included, so that the accuracy of identity verification and record execution when the party B executes the order is ensured.
In practical applications, besides the above data encryption storage, the data sender, the data receiver and the data transmission content are recorded in the blockchain system after encryption. Meanwhile, the system performs hash calculation on the electronic contract, the calculation result is stored and written into the blockchain system, the system returns the hash value obtained after file encryption calculation as the identifier of the blockchain system for comparison use of subsequent files, and thus confidentiality of the electronic contract is further provided.
In this embodiment, the hash operation may specifically be that a signing party performs hash calculation on plaintext information to obtain a digest hash, and signs the digest hash with a private key, encrypts the obtained digital signature, the plaintext information and the digest hash with a public key provided by a signing party, and sends the encrypted information to the signing party; after decrypting the encrypted information by using the private key, the signer obtains plaintext information, digest hash and digital signature before encryption, decrypts the digital signature by using the public key of the signer, can obtain a digest hash, and can verify whether the digital signature is signed by the private key of the signer by comparing whether the digest hash is consistent with the digest hash in the original text, thereby realizing identity verification, and then transmitting the encrypted data to a blockchain for storage.
206. And converting the signed electronic contract into a PDF file containing an electronic chapter, and sending the PDF file to a legal notarization department node on the blockchain for visual storage.
In this embodiment, for electronic contract stamping to be converted into a PDF file, specifically, after signing the contract, the system will perform hash calculation on the signed contract, and write the hash value into the blockchain, where the data written into the blockchain has the characteristic of being non-tamperable; the business side and the contracting side can store the signed contract file locally or store the signed contract file to other cloud servers in a contract downloading mode, when the authentication requirement appears, the hash of the contract file stored by the business side and the contracting side is calculated firstly, then the hash stored on the blockchain is compared, and if the two are consistent, the contract can be proved to be not tampered.
In this embodiment, the recording of the subsequent operations of accessing, checking and executing, etc. is included in addition to the notarization storage of the electronic contract through the blockchain, such processing may be performed according to the record information if the subsequent issue of the right to order exists, and the notarization here is the storage record evidence with legal effect, after the electronic contract is signed and stored in the notarization node, if the carrier needs to execute the order, the processing state of the order needs to be changed by executing the subcontection, referring specifically to fig. 3, another embodiment of the electronic contract generating method in the embodiment of the present invention includes:
301. Compiling an order subscription agreement program of a platform based on a block chain technology;
in this embodiment, the order subscription agreement procedure is used to implement subscription between the carrier, the owner and the platform of the order; it will be appreciated that the order contract agreement procedure is a piece of computer programming language code program that is executed on each node of the blockchain. The invention realizes the whole flow of the multi-party countersign of the electronic contract by executing the initialization interface of the order contract on the blockchain, realizing the inquiry interface and the contract signing interface by executing the code program, executing the authentication contract after the multi-party confirms the contract after the contract data is initialized, broadcasting the electronic contract signed by the order contract signing protocol program to each blockchain node by the blockchain platform so that a plurality of contracting parties can broadcast the electronic contract on the order contract signing protocol program to each blockchain node through the inquiry interface in the actual application process of controlling the contract through the order contract signing protocol program, and broadcasting each blockchain link point corresponds to one signing party until the last contracting party completes the countersign, and stamping the time stamp by the order contract signing protocol program. Related data can be stored in the blockchain nodes in the whole signing process, each blockchain node comprises a timestamp connected with a previous blockchain node, so that the data cannot be tampered, once the data are recorded, the data in one blockchain node are irreversible, each blockchain node stores a complete distributed account copy, and the characteristics of data cannot be tampered, cannot be counterfeited, have high availability, can be traced back and the like are realized by combining a consensus mechanism, an encryption algorithm and the like, so that the trust problem among people is solved indirectly through a computer, and the fact that not only cannot be tampered by a final electronic contract, but also cannot be tampered by records and time of each signing contract can be ensured.
302. Acquiring order information selected by the carrier on the platform;
303. generating an electronic contract among the carrier, the cargo owner and the platform according to the order information through the order signing agreement program, and notifying the carrier and the cargo owner to sign;
304. converting the signed electronic contract into a PDF file containing electronic chapters;
305. adding a preset third random number to the PDF file, and carrying out hash operation through a hash algorithm to obtain a first hash value;
306. the first party information and the signature information of the platform are obtained, and the first hash value is signed again to generate a second hash value;
307. and sending the second hash value to a notarized department node appointed in the blockchain for visual storage.
In this embodiment, after the electronic contract is generated, the method further includes generating a record subcontract when the carrier executes the order or the corresponding electronic contract, specifically: generating a record subcontract according to the visual storage mode of the blockchain to the PDF file; the record subcontection is provided with a self-filling information item, a selection information item, an introduction information item, a random number information item and a selection storage mode information item, and identity verification is carried out by filling the record subcontection each time the PDF file is called or executed.
Further, the identity verification is performed by filling in the record subcontract, and the identity verification is realized by the following steps:
acquiring information in the self-filling information item, the selection information item, the annex information item, the random number information item and the selection storage mode information item through the order subscription agreement program;
carrying out hash calculation on the information to obtain abstract hash;
signing the abstract hash according to a preset private key to obtain a digital signature;
encrypting the data signature together with the information and the abstract hash by using a public key provided in the contractor information of the second party in the PDF file, and sending the encrypted information to the first party or the platform for confirmation;
and generating a record subcontract from the confirmed information, and sending the record subcontract to the blockchain for storage.
In this embodiment, in order to facilitate recording operations such as recording the sub-contract for viewing the electronic contract, before the PDF file is sent to the legal approved notarization node on the blockchain for visual storage, the method further includes:
extracting contractor information of the second party from the PDF file;
generating and executing a subcontract according to the second party information and the contractor information;
And setting the executing authority of the notarized department node of the blockchain to the PDF file according to the executing subcontract and contract terms in the PDF file.
Through the steps, the operation information of electronic contract signing, storage and subsequent execution, access and the like is stored on the nodes of the blockchain, and all contract operations can be executed on the blockchain, so that signing contract records and final contract contents cannot be forged and tampered. And finally, the digital signatures of the final electronic contract content and all signing parties are covered with trusted time stamps, so that the integrity and the existence time point of the final electronic contract content can be solidified, and the electronic contract content and the signing time are prevented from being forged and tampered.
Referring to fig. 4, in another embodiment of the method for generating an electronic contract according to the present invention, the method specifically includes:
401. the shipper issues the demand for issuing the source of the goods at the platform.
402. The carrier selects the goods source quotation at the platform, and before quotation, reminds that the order is generated, the carrier can sign an electronic contract with legal effect with the platform, and can preview the contract information after quotation.
403. After receiving the multiparty quotation, the goods owner selects the quotation to generate an order, reminds the electronic contract with the platform to have legal effect when the order is generated, and can preview complete contract information.
404. After the order is generated, the system transmits the related information such as pdf contract information, first party information, second party information, signing time and the like which are generated to contain the electronic chapter to the blockchain for storage.
The blockchain is a series of data blocks generated by using a cryptography method, so that the data added to the blockchain is ensured to be permanently stored, the data is not easy to tamper once stored, the data is disclosed to all people, all information is highly transparent, and transaction records can be tracked. It provides us with a globally trusted notepad and global clock that is updated as new blocks appear, and each block can also be uniquely identified by the block's header hash value.
Adding random numbers to the information needing to be stored to generate a hash value, then re-signing and generating a hash by a stakeholder or witness, and finally recording on a blockchain. The information to be stored is formatted, the formatted information and self-filling information can be separated, and hash check such as filling information, selection information, introduction information and random number information can be respectively stored and carried out (violent cracking is prevented). The private information to be stored cannot be directly recorded on the blockchain, the person needing to be information is encrypted by the public key and then selects the storage mode by himself or the person needing to be information is stored on the blockchain which is considered to be suitable by himself, the person needing to be information can encrypt and store the information hash value, the signature of the person needing to be information and the hash value together by the public key, the stored data can be prevented from being tampered, and the method is convenient to search. If the information is related to the contract to be executed, the contract terms can be allowed to authorize the blockchain to execute the same authority under certain conditions.
405. The related party can inquire the complete file participating in the contract in the system at any time and can download and save the complete file.
Since the contract pdf document is on the platform and needs to be frequently called and checked, in order to ensure the safety and the use convenience of the contract, all the pdf contract texts are separately stored on a server of the company electronic contract.
In one embodiment, in one instance, the contract terms requested to be recorded by the contract participant via the contract recording request are signed for the first time; in another case, the contract terms that the contract participants request records through the contract recording request are updated for the historical version. Thus, information of a historical version of the treaty clause may be obtained and the treaty clause is issued to a blockchain in association with the information of the historical version. For example, contract terms and historical version information may be recorded in the same transaction. Wherein the historical version may include a previous version of the contract term and/or all existing versions of the contract term. The historical version of information may include at least one of: the storage address of the history version and the transaction serial number of the transaction where the history version is located. On the one hand, the contract clauses are issued to the block chain, and each block chain node records a complete contract clause, so that even if a certain node has the problem of data damage, the whole data integrity is not affected; meanwhile, the non-tamper property of the block chain storage data is fully utilized, thereby preventing lawbreakers from maliciously modifying contract terms and ensuring the safety of recorded contract terms. On the other hand, if the contract terms are issued to the blockchain in association with the historical version information, the contract participants can trace the signed contract terms, can inquire the evolution process of the contract terms from the initial version to the subsequent updated versions, and improves the efficiency of the contract participants in inquiring the contract terms.
Through the implementation of the embodiment, each order on the platform is ensured to be a valid order approved by law, the later-period default overtaking is convenient, and the benefits of related parties of the platform are ensured.
The method for generating an electronic contract in the embodiment of the present invention is described above, and the apparatus for generating an electronic contract in the embodiment of the present invention is described below, referring to fig. 5, where an embodiment of the apparatus for generating an electronic contract in the embodiment of the present invention includes:
the program generating module 51 is configured to write an order subscription agreement program of the platform based on a blockchain technology; the order signing agreement program is used for signing the orders among the carriers, the owners and the platform;
the acquisition module 52 is configured to acquire order information selected by the carrier on the platform;
a contract generation module 53, configured to generate an electronic contract between the carrier, the cargo owner and the platform according to the order information through the order subscription agreement procedure, and notify the carrier and the cargo owner to sign a contract;
the storage module 54 is configured to convert the signed electronic contract into a PDF file containing electronic chapters, and send the PDF file to a notarized department node of legal approval on the blockchain for visual storage.
In the technical scheme provided by the embodiment of the invention, the agreements of the carrier, the cargo owner and the platform are stored on the blockchain in the form of electronic contracts by referring to the blockchain technology, nodes of the blockchain simultaneously comprise notarized department nodes approved by law, all legal approval information of the signed contract can be checked on the blockchain through unique contract numbers, the contract is ensured not to be tampered by any party, meanwhile, the convenient management of the electronic contract is realized, the electronic contract interaction behavior of a user can be effectively monitored, and the occurrence of the believing losing behavior is avoided to the greatest extent. Further guaranteeing the safety of the electronic contract and preventing the leakage of the real information of the user.
Referring to fig. 6, an embodiment of an electronic contract generating apparatus according to an embodiment of the present invention includes:
the program generating module 51 is configured to write an order subscription agreement program of the platform based on a blockchain technology; the order signing agreement program is used for signing the orders among the carriers, the owners and the platform;
the acquisition module 52 is configured to acquire order information selected by the carrier on the platform;
a contract generation module 53, configured to generate an electronic contract between the carrier, the cargo owner and the platform according to the order information through the order subscription agreement procedure, and notify the carrier and the cargo owner to sign a contract;
The storage module 54 is configured to convert the signed electronic contract into a PDF file containing electronic chapters, and send the PDF file to a notarized department node of legal approval on the blockchain for visual storage.
Optionally, the electronic contract generating apparatus further includes an information marking module 55, specifically configured to:
the identity information of the carrier and the selected order quotation are subjected to encryption operation by adding a preset first random number, so that second party information is obtained;
the identity information of the goods owner and the selected final quotation are added with a preset second random number to carry out encryption operation, so that first party information is obtained;
and marking the first party information and the second party information by the platform through a time marking method, and storing the first party information and the second party information into corresponding nodes on the blockchain.
Optionally, the time marking method seals a trusted time stamp for the order subscription agreement procedure calling country time service center interface.
Optionally, the electronic contract generating apparatus further includes an execution module 56, specifically configured to:
extracting contractor information of the second party from the PDF file;
generating and executing a subcontract according to the second party information and the contractor information;
And setting the executing authority of the public certificate department node of the blockchain to the PDF file according to the executing subcontract and contract terms in the PDF file.
Optionally, the information marking module 55 includes a hash calculating unit 551 and a certification unit 552, where:
the hash calculation unit 551 is configured to add a preset third random number to the PDF file, and perform hash operation through a hash algorithm to obtain a first hash value; the first party information and the signature information of the platform are obtained, and the first hash value is signed again to generate a second hash value;
the certification unit 552 is configured to send the second hash value to a certification node specified in the blockchain for visual storage.
Optionally, the electronic contract generating apparatus further includes a verification module 57, specifically configured to:
generating a record subcontract according to the visual storage mode of the blockchain to the PDF file; the record subcontection is provided with a self-filling information item, a selection information item, an introduction information item, a random number information item and a selection storage mode information item, and identity verification is carried out by filling the record subcontection when the PDF file is called or executed each time.
Optionally, the identity verification is performed by filling in the record subcontract, which is implemented by the following procedures:
acquiring information in the self-filling information item, the selection information item, the annex information item, the random number information item and the selection storage mode information item through the order subscription agreement program;
carrying out hash calculation on the information to obtain abstract hash;
signing the abstract hash according to a preset private key to obtain a digital signature;
encrypting the data signature together with the information and the abstract hash by using a public key provided in the contractor information of the second party in the PDF file, and sending the encrypted information to the first party or the platform for confirmation;
and generating a record subcontract from the confirmed information, and sending the record subcontract to the blockchain for storage.
The content is described based on the same embodiment as the electronic contract generating method of the present invention described above, so that the embodiment of the electronic contract generating apparatus will not be described in detail.
Fig. 5 to 6 above describe the electronic contract generating apparatus in the embodiment of the present invention in detail from the point of view of the modularized functional entity, and the electronic contract generating device in the embodiment of the present invention is described in detail from the point of view of the hardware processing.
Fig. 7 is a schematic diagram of an embodiment of an electronic contract generating apparatus 1000 according to the present invention, which may vary considerably in configuration or performance, may include one or more processors (central processing units, CPU) 1010 (e.g., one or more processors) and memory 1020, one or more storage mediums 1030 (e.g., one or more mass storage devices) storing applications 1033 or data 1032. Wherein the memory 1020 and storage medium 1030 may be transitory or persistent. The program stored on storage medium 1030 may include one or more modules (not shown), each of which may include a series of instruction operations for XXX device 1000. Still further, the processor 1010 may be configured to communicate with the storage medium 1030 to perform a series of instruction operations in the storage medium 1030 on the electronic contract generating apparatus 1000.
The electronic contract-based generating apparatus 1000 can also include one or more power supplies 1040, one or more wired or wireless network interfaces 1050, one or more input/output interfaces 1060, and/or one or more operating systems 1031, such as Windows Serve, mac OS X, unix, linux, freeBSD, and the like. It will be appreciated by those skilled in the art that the electronic contract generating apparatus structure illustrated in fig. 7 is not limiting and may include more or fewer components than illustrated, or may combine certain components, or may be a different arrangement of components.
The present invention also provides a computer readable storage medium, which may be a non-volatile computer readable storage medium, or a volatile computer readable storage medium, having stored therein instructions that, when executed on a computer, cause the computer to perform the steps of the electronic contract generation method.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, apparatuses and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not described in detail herein.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An electronic contract generation method, characterized in that the electronic contract generation method comprises the following steps:
compiling an order subscription agreement program of a platform based on a block chain technology; the order signing agreement program is used for signing the orders among the carriers, the owners and the platform;
acquiring order information selected by the carrier on the platform;
generating an electronic contract among the carrier, the cargo owner and the platform according to the order information through the order signing agreement program, and notifying the carrier and the cargo owner to sign;
converting the signed electronic contract into a PDF file containing an electronic chapter, and sending the PDF file to a notarization department node approved by law on the blockchain for visual storage;
After the electronic contract between the carrier, the cargo owner and the platform is generated according to the order information through the order signing agreement procedure and the carrier and the cargo owner are informed to sign up, the method further comprises the following steps: the identity information of the carrier and the selected order quotation are subjected to encryption operation by adding a preset first random number, so that second party information is obtained; the identity information of the goods owner and the selected final quotation are added with a preset second random number to carry out encryption operation, so that first party information is obtained; and marking the first party information and the second party information by the platform through a time marking method, and storing the first party information and the second party information into corresponding nodes on the blockchain.
2. The method of claim 1, wherein the time stamping method provides a trusted time stamp for the order contract agreement procedure call country time service center interface.
3. The method of electronic contract generation of any one of claims 1-2, characterized by the further step, prior to said converting the signed electronic contract into a PDF file containing electronic chapters and sending it to a legal approved notarization node on the blockchain for visual storage:
Extracting contractor information of the second party from the PDF file;
generating and executing a subcontract according to the second party information and the contractor information;
and setting the executing authority of the notarized department node of the blockchain to the PDF file according to the executing subcontract and contract terms in the PDF file.
4. The method for generating electronic contracts according to claim 3, wherein said converting the signed electronic contracts into PDF files containing electronic chapters and sending them to a legal approved notarization node on said blockchain for visual storage includes:
adding a preset third random number to the PDF file, and carrying out hash operation through a hash algorithm to obtain a first hash value;
the first party information and the signature information of the platform are obtained, and the first hash value is signed again to generate a second hash value;
and sending the second hash value to a notarized department node appointed in the blockchain for visual storage.
5. The method for generating electronic contracts according to any of claims 1 to 2, further comprising, after said converting the signed electronic contract into a PDF file containing electronic chapters and sending it to a legal approved notarization node on said blockchain for visual storage:
Generating a record subcontract according to the visual storage mode of the blockchain to the PDF file; the record subcontection is provided with a self-filling information item, a selection information item, an introduction information item, a random number information item and a selection storage mode information item, and identity verification is carried out by filling the record subcontection when the PDF file is called or executed each time.
6. The method for generating electronic contract according to claim 5, characterized in that said authentication by filling out said recorded subcontensations is realized by the following procedures:
acquiring information in the self-filling information item, the selection information item, the annex information item, the random number information item and the selection storage mode information item through the order subscription agreement program;
carrying out hash calculation on the information to obtain abstract hash;
signing the abstract hash according to a preset private key to obtain a digital signature;
encrypting the digital signature together with the information and the abstract hash by using a public key provided in the contractor information of the second party in the PDF file, and sending the encrypted information to the first party or the platform for confirmation;
and generating a record subcontract from the confirmed information, and sending the record subcontract to the blockchain for storage.
7. An electronic contract generation apparatus, characterized in that the electronic contract generation apparatus includes:
the program generation module is used for compiling an order subscription protocol program of the platform based on a blockchain technology; the order signing agreement program is used for signing the orders among the carriers, the owners and the platform;
the acquisition module is used for acquiring order information selected by the carrier on the platform;
the contract generation module is used for generating an electronic contract among the carrier, the cargo owner and the platform according to the order information through the order signing agreement procedure and notifying the carrier and the cargo owner to sign;
the storage module is used for converting the signed electronic contract into a PDF file containing the electronic chapter and sending the PDF file to a notarization department node approved by law on the blockchain for visual storage;
the contract generation module is also used for carrying out encryption operation on the identity information of the carrier and the selected order quotation, and adding a preset first random number to obtain second party information; the identity information of the goods owner and the selected final quotation are added with a preset second random number to carry out encryption operation, so that first party information is obtained; and marking the first party information and the second party information by the platform through a time marking method, and storing the first party information and the second party information into corresponding nodes on the blockchain.
8. An electronic contract generation apparatus, characterized in that the electronic contract generation apparatus includes: a memory and at least one processor, the memory having instructions stored therein, the memory and the at least one processor being interconnected by a line;
the at least one processor invoking the instructions in the memory to cause the electronic contract generating apparatus to perform the electronic contract generating method of any of claims 1-6.
9. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the electronic contract generation method according to any of claims 1-6.
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| CN112001818A (en) * | 2020-08-19 | 2020-11-27 | 凯美瑞德（苏州）信息科技股份有限公司 | Contract verification method and device, computer equipment and storage medium |
| CN112016920A (en) * | 2020-08-19 | 2020-12-01 | 云账户技术(天津)有限公司 | Integrated service platform, income certificate management method, device and medium |
| CN112116474B (en) * | 2020-09-21 | 2023-12-05 | 京东科技信息技术有限公司 | Verification method and device for electronic contract, electronic equipment and storage medium |
| CN112184435A (en) * | 2020-09-23 | 2021-01-05 | 中国建设银行股份有限公司 | Supervision contract signing method and device, electronic equipment and readable storage medium |
| CN112700197A (en) * | 2020-12-31 | 2021-04-23 | 车主邦（北京）科技有限公司 | Method and device for releasing freight information |
| CN112651855A (en) * | 2021-01-05 | 2021-04-13 | 福建中科星泰数据科技有限公司 | Intelligent signing method and system based on alliance block chain |
| CN112822195B (en) * | 2021-01-08 | 2022-11-04 | 深圳汉硕计算机科技有限公司 | Electronic intelligent signing method based on block chain technology |
| CN113468862A (en) * | 2021-07-08 | 2021-10-01 | 微易签(杭州)科技有限公司 | Method and device for creating layout file by block chain, electronic equipment and storage medium |
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