CN111292041A - Electronic contract generating method, device, equipment and storage medium - Google Patents

Electronic contract generating method, device, equipment and storage medium Download PDF

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CN111292041A
CN111292041A CN202010098189.8A CN202010098189A CN111292041A CN 111292041 A CN111292041 A CN 111292041A CN 202010098189 A CN202010098189 A CN 202010098189A CN 111292041 A CN111292041 A CN 111292041A
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CN111292041B (en
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杨周龙
董治国
杨鹏
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Dongpu Software Co Ltd
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Abstract

The invention discloses an electronic contract generation method, device, equipment and storage medium. The method is characterized in that an order signing agreement program generated by a block chain technology is introduced, an agreement between a carrier, a cargo owner and a platform is stored on a block chain in the form of an electronic contract, nodes of the block chain simultaneously comprise notarization department nodes approved by laws, and all legal approval information of the signed contract can be checked on the block chain through a unique contract number, so that the contract is prevented from being falsified 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 generation of a credit loss behavior is avoided to the greatest extent. The security of the electronic contract is further guaranteed, and the leakage of the real information of the user is prevented.

Description

Electronic contract generating method, device, equipment and storage medium
Technical Field
The present invention relates to the field of electronic contract technologies, and in particular, to an electronic contract generating method, apparatus, device, and storage medium.
Background
With the continued development of the economy, the number of contracts signed in commercial activities has increased dramatically. The traditional transaction activities generally carry out the signing of paper contracts, but as online transactions are increasingly popularized, electronic contracts are increasingly used, and the signing of the electronic contracts is an agreement between two parties or multiple parties to establish, change and terminate property civil rights obligations in an electronic form through an electronic information network. Traditional electronic contracts include EDI, E-mail, and often need to rely on third-party servers, data centers, etc. to manage the electronic contracts, which risks revealing personal information. Especially in the field of online ordering of shipping platforms on the market, the platform cannot give the shipper or carrier a valid proof of authority in case the shipper or carrier violates an agreement, and does not completely fulfill the order agreement, due to leakage of electronic contracts or inability to monitor the breach.
Disclosure of Invention
The invention mainly aims to solve the technical problems that the existing electronic contract signing and managing mode is lack of credit setting and the safety is low.
A first aspect of the present invention provides an electronic contract generating method, including:
compiling an order signing protocol program of the platform based on the block chain technology; the order signing protocol program is used for realizing signing among a carrier, a shipper and the platform of the order;
acquiring order information selected by the carrier on the platform;
generating an electronic contract among the carrier, the shipper and the platform according to the order information through the order signing agreement program, and informing the carrier and the shipper to sign a contract;
and converting the signed electronic contract into a PDF file containing electronic chapters, and sending the PDF file to a legally recognized notarization department node on the block chain for visual storage.
Optionally, in a first implementation manner of the first aspect of the present invention, after the generating, by the order contract agreement program, an electronic contract between the carrier, the shipper, and the platform according to the order information, and notifying the carrier and the shipper to make a contract, the method further includes:
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 party B information;
carrying out encryption operation on the identity information of the shipper and the selected final quoted price, and adding a preset second random number to obtain first party information;
and after the information of the party A and the information of the party B are marked by the platform through a time marking method, storing the information of the party A and the information of the party B into corresponding nodes on the block chain.
Optionally, in a second implementation manner of the first aspect of the present invention, the time stamping method adds a trusted time stamp to the order contract agreement program calling a national 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 a legally recognized notary node on the blockchain for visual storage, the method further includes:
extracting contractor information of the second party from the PDF file;
generating an execution sub-contract according to the party B information and the contractor information;
and setting the execution authority of the notarization department node of the block chain on the PDF file according to the execution sub-contract 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 notary 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 performing 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 designated notarization node in the block chain for visual storage.
Optionally, in a fifth implementation manner of the first aspect of the present invention, after the sending the PDF file to a legally recognized notary node on the blockchain for visual storage, the method further includes:
generating a recording sub-contract according to the visual storage mode of the PDF file by the block chain; the recording sub-contract is provided with a self-filling information item, a selection information item, an additional information item, a random number information item and a selection storage mode information item, and identity verification is performed by filling the recording sub-contract each time the PDF file is called or executed.
Optionally, in a sixth implementation manner of the first aspect of the present invention, the identity verification by filling in the record sub-contract is implemented by the following process:
acquiring information in the self-filling information item, the selection information item, the additional statement information item, the random number information item and the selection storage mode information item through the order signing protocol program;
performing hash calculation on the information to obtain an abstract hash;
signing the digest hash according to a preset private key to obtain a digital signature;
encrypting the data signature, the information and the abstract hash by using a public key provided in the contractor information of the party B in the PDF file, and sending the encrypted information to the party A or a platform for confirmation;
and generating a recording sub-contract from the confirmed information, and sending the recording sub-contract to the block chain for storage.
A second aspect of the present invention provides an electronic-contract generating apparatus comprising:
the program generating module is used for compiling an order signing protocol program of the platform based on the block chain technology; wherein, the order contract agreement program is used for realizing contract between the carrier, the goods owner and the platform of the order;
the acquisition module is used for acquiring the order information selected by the carrier on the platform;
the contract generating module is used for generating an electronic contract among the carrier, the shipper and the platform according to the order information through the order signing agreement program and informing the carrier and the shipper to sign a contract;
and the storage module is used for converting the signed electronic contract into a PDF file containing an electronic seal and sending the PDF file to a notarization department node approved by law on the block chain 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:
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 party B information;
carrying out encryption operation on the identity information of the shipper and the selected final quoted price, and adding a preset second random number to obtain first party information;
and after the information of the party A and the information of the party B are marked by the platform through a time marking method, storing the information of the party A and the information of the party B into corresponding nodes on the block chain.
Optionally, in a second implementation manner of the second aspect of the present invention, the time stamping method adds a trusted time stamp to the order contract agreement program calling a national 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 executing module, which is specifically configured to:
extracting contractor information of the second party from the PDF file;
generating an execution sub-contract according to the party B information and the contractor information;
and setting the execution authority of the notarization department node of the block chain on the PDF file according to the execution sub-contract 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 evidence storing unit, where:
the hash calculation unit is used for 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 the evidence storage unit is used for sending the second hash value to the designated notarization department node in the block chain 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 recording sub-contract according to the visual storage mode of the PDF file by the block chain; the recording sub-contract is provided with a self-filling information item, a selection information item, an additional information item, a random number information item and a selection storage mode information item, and identity verification is performed by filling the recording sub-contract each time the PDF file is called or executed.
Optionally, in a sixth implementation manner of the first aspect of the present invention, the identity verification by filling in the record sub-contract is implemented by the following process:
acquiring information in the self-filling information item, the selection information item, the additional statement information item, the random number information item and the selection storage mode information item through the order signing protocol program;
performing hash calculation on the information to obtain an abstract hash;
signing the digest hash according to a preset private key to obtain a digital signature;
encrypting the data signature, the information and the abstract hash by using a public key provided in the contractor information of the party B in the PDF file, and sending the encrypted information to the party A or a platform for confirmation;
and generating a recording sub-contract from the confirmed information, and sending the recording sub-contract to the block chain for storage.
A third aspect of the present invention provides an electronic contract generating apparatus comprising: a memory having instructions stored therein and at least one processor, the memory and the at least one processor interconnected by a line; the at least one processor invokes the instructions in the memory to cause the electronic-contract generating apparatus to execute the electronic-contract generating method described above.
A fourth aspect of the present invention provides a computer-readable storage medium having stored therein instructions, which when run on a computer, cause the computer to execute the electronic-contract generating method described above.
In the technical scheme provided by the invention, through acquiring the order information selected by the carrier on the platform, generating the electronic contract among the carrier, the shipper and the platform according to the order information through an order signing protocol program, informing the carrier and the shipper to sign a contract, converting the signed electronic contract into a PDF file containing an electronic seal, and sending the PDF file to a legal notarization department node on the block chain for visual storage; the method stores the agreement between a carrier, a cargo owner and a platform on a block chain in the form of an electronic contract by introducing a block chain technology, wherein the nodes of the block chain simultaneously comprise notarization nodes approved by laws, and all legal approval information for signing the contract can be checked on the block chain through a unique contract number, so that the contract is not falsified 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 generation of a credit loss behavior is avoided to the maximum extent. The security of the electronic contract is further guaranteed, and the leakage of the real information of the user is prevented.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of an electronic contract generation method according to an embodiment of the present invention;
FIG. 2 is a diagram of a second embodiment of an electronic contract generation method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a third embodiment of an electronic contract generation method according to an embodiment of the invention;
FIG. 4 is a diagram of a fourth embodiment of the electronic contract generating method according to the embodiment of the present invention;
FIG. 5 is a schematic diagram of a first embodiment of an electronic-contract generating apparatus according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a second embodiment of the electronic-contract generating apparatus according to the embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic contract generating apparatus according to an embodiment 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 among the carrier, a shipper and the platform according to the order information through an order signing protocol program, informing the carrier and the shipper to sign, converting the signed electronic contract into a PDF file containing electronic stamps, and sending the PDF file to a notarization department node approved by law on the block chain for visual storage; the generation mode can not only store the agreement of a carrier, a cargo owner and a platform on the block chain in the form of an electronic contract, the nodes of the block chain simultaneously comprise notarization department nodes approved by laws, and all legal approval information for signing the contract can be checked on the block chain through the unique contract number, so that the contract is not falsified 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 generation of the trust losing behavior is avoided to the maximum extent.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," or "having," and any variations thereof, are intended to cover non-exclusive inclusions, 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, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For convenience of understanding, a specific flow of the embodiment of the present invention is described below, and referring to fig. 1, an embodiment of the electronic contract generating method in the embodiment of the present invention includes:
101. compiling an order signing protocol program of the platform based on the block chain technology;
it is understood that the order contract agreement program is used for realizing contract between the carrier, the cargo owner and the platform of the order; the execution subject of the method embodiment of the present invention may be an electronic contract generating apparatus, or may also be a terminal, a server, or an order distribution system, which is not limited herein. The embodiment of the present invention specifically takes a server as an execution subject for explanation.
In this embodiment, when writing the order contract agreement program, the contract content may be communicated online or offline by each signed party, and then the contract initiator writes the corresponding order contract agreement program according to the finally determined contract template and each signed party, and deploys the order contract agreement program into each node of the block chain. When the order signing protocol program is deployed, an initialization interface of the order signing protocol program is called, and contract content and information of a signing party are initialized. Each signing party calls an inquiry interface of a subscription agreement program to confirm that the contract content is correct and calls a signing interface of an intelligent contract to realize digital signature authentication signing.
In practical application, the order contract agreement program may also be a code program or a contract electronic template program, and by introducing a block chain technique, information generated by each node in the program is stored in a block chain, thereby realizing block chain storage for electronic contract generation.
102. Acquiring order information selected by the carrier on the platform;
in the present embodiment, the platform may be understood as any type of electronic device such as a mobile phone, a tablet computer, a smart watch, and the like used by contract participants (including a contract provider and a contract user), and this specification does not limit this. The contract participants can interact with the block link points of the electronic equipment accessed to other participants through the clients which log in the registered account on the electronic equipment.
In practical application, after receiving a source demand issued by a shipper, a carrier accesses a platform or a server for the shipper to issue the demand through a public client, the shipper selects a corresponding carrier according to the bid, and after the selection, the server obtains information of the carrier and information of an order through the client of the carrier, wherein the information of the order comprises an order type, a required waybill tool and the like.
103. Generating an electronic contract among the carrier, the shipper and the platform according to the order information through the order signing agreement program, and informing the carrier and the shipper to sign a contract;
in this embodiment, after the carrier is determined, the server modifies the order contract agreement program according to the information of the order to obtain a contract program corresponding to the order, and starts the contract program to connect the carrier, the shipper and the notary to sign a contract, where the notary is a platform or a legal person and a handler of the platform in practical application.
In practical application, before the third party signs a contract, the information of the third party and the order information are obtained, an electronic contract template is generated, and the third party is connected to sign a formal electronic contract based on the electronic contract template.
Further, for the generation of the electronic contract template, the electronic contract template may be modified by the shipper side according to the information of the selected carrier, and then uploaded to a platform for the distribution of the source demand, and the platform (i.e. a server) notifies three parties of contract signing.
104. And converting the signed electronic contract into a PDF file containing electronic chapters, and sending the PDF file to a legally recognized notarization department node on the block chain for visual storage.
In this embodiment, after signing, the platform generates an electronic contract meeting the legal relationship, which may specifically be 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 the block chain technology, a service party serves as a contract signing initiator, corresponding electronic contracts can be configured in the system, uploading of files in various formats such as Word and PDF is supported, and the system records sub-contract initiators and contract information into a block chain.
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 contracting parties of the contract, the system sends the contract to the client of each contracting party, a contract signing request is sent to the contracting parties, and the identity information and the associated information of the contracting parties are recorded in the block chain.
Step 2, a contract signing party signs an electronic contract;
namely, the signing party performs real-name authentication and uploads an electronic signature, the authenticity and the validity of the identity of the signing party are ensured, and the information of the sub-contract signing party is recorded into a block chain; after the service party and the signing party complete contract signing in the system, the service party and the signing party can log in the signing system at any time to check and download the contract; the whole signing process is completely recorded on the block chain, the contract and the signing information can not be falsified and can be traced, and effective accountability can be performed through the block chain when a contract dispute and other conditions occur in the later period.
Step 3, both parties of contract signing verify the electronic contract
In practical application, after contract signing is finished, the system performs hash calculation on the signed contract and writes a hash value into a block chain, and data written into the block chain has the characteristic of being not falsifiable; the service party and the signing party can store the signed contract file to the local or other cloud servers in a contract downloading mode, when the certification requirement occurs, the hash of the contract file stored by the service party and the signing party is calculated firstly, then the hash stored on the block chain is compared, and if the hash is consistent with the hash stored on the block chain, 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 by a block chain technology, and specifically, an order signing protocol program of a platform is compiled by the block chain technology to generate the order information into the electronic contract among the carrier, the shipper and the platform, and the carrier and the shipper are informed to sign; converting the signed electronic contract into a PDF file containing electronic chapters, and sending the PDF file to a legally recognized notarization department node on the block chain for visual storage; the storage of the block chain guarantees that each order on the platform is a valid order approved by laws, so that the later period of breach of consummation and pursuit of responsibility are facilitated, the benefits of the platform related parties are guaranteed, meanwhile, the nodes of the block chain in the time zone comprise notarization department nodes approved by laws, all the law approval information of the signing contract can be checked on the block chain through the unique contract number, and the contract is guaranteed not to be tampered by any party.
Referring to fig. 2, another embodiment of the electronic contract generating method according to the embodiment of the present invention includes:
201. acquiring order information selected by the carrier on the platform;
202. generating an electronic contract among the carrier, the shipper and the platform according to the order information through the order signing agreement program, and informing the carrier and the shipper to sign a contract;
in this step, the order contract agreement program is compiled based on the block chain technology, and is used for realizing the contract between the carriers, the owners of the orders and the platform.
In practical applications, the order contract agreement program may be generated by writing in real time, for example, by setting a general electronic contract template, generating a contract agreement program based on the electronic contract template, and then modifying the electronic contract template according to a contract signing request of an electronic contract, so as to obtain an electronic contract draft, specifically:
by receiving an electronic contract generation request, obtaining a signing program based on the request and an electronic contract template, namely receiving the electronic contract generation request, a first user and a second user negotiate a draft electronic contract through negotiation communication (for example, through a platform), and submit the electronic contract generation request, an authentication node authenticates the first user and the second user, the first user and the second user are added into an electronic contract block chain node after passing the authentication, virtual users are generated for the first user and the second user, and the signing program is obtained according to a negotiation result.
Further, in the process of carrying out electronic contract signing processing, 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 on the storage node of the electronic contract block chain.
In this embodiment, in order to further improve the legal effect and the security of the electronic contract, a block chain credit evaluation is also set in the electronic contract when the electronic contract is signed and generated, the credit evaluation block chain node monitors and manages the credit levels of the first and second users in real time, if it is monitored that the first and second users have illegal behaviors in the electronic contract interaction process, the agreement of the electronic contract of the first and second users is terminated, the above-mentioned illegal behavior is notified to other nodes in the block chain in a manner that the true information of the first and second users is not revealed, and the interaction record of the current electronic contract is performed.
203. 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 party B information;
204. carrying out encryption operation on the identity information of the shipper and the selected final quoted price and a preset second random number to obtain first party information;
205. after the platform marks the party A information and the party B information by a time marking method, storing the party A information and the party B information into corresponding nodes on the block chain;
it can be understood that the time stamping method adds a trusted time stamp for the order signing protocol program calling a national time service center interface. For step 203-.
In practical applications, in addition to the above data encryption storage, the data transmission system also includes a data transmission party, a data reception party, and data transmission contents, which are all recorded in the blockchain system after being encrypted. Meanwhile, the system performs hash calculation on the electronic contract, the calculation result is stored and written into the blockchain system, and the hash value obtained after file encryption calculation is returned by the system and serves as an identifier of the blockchain system for comparison and use of subsequent files, so that the confidentiality of the electronic contract is further improved.
In this embodiment, the hash operation may specifically be that a signing party performs hash calculation on plaintext information to obtain a digest hash, signs the digest hash with a private key, encrypts the obtained digital signature, the plaintext information and the digest hash together with a public key provided by a signing party, and sends encrypted information to the signing party; the signature verifying party decrypts the encrypted information by using the private key to obtain the plaintext information, the digest hash and the digital signature before encryption, decrypts the digital signature by using the public key of the signature party to obtain the digest hash, and verifies whether the digital signature is signed by the private key of the signature party by comparing whether the digest hash is consistent with the digest hash in the plaintext, so that identity verification is realized, and the encrypted data is sent to the block chain for storage.
206. And converting the signed electronic contract into a PDF file containing electronic chapters, and sending the PDF file to a legally recognized notarization department node on the block chain for visual storage.
In this embodiment, for the electronic contract sealing conversion to the PDF file, specifically, after the contract signing is completed, the system performs hash calculation on the signed contract, and writes a hash value into a block chain, where data written into the block chain has a characteristic of being not falsifiable; the service party and the signing party can store the signed contract file to the local or other cloud servers in a contract downloading mode, when the certification requirement is met, the hash of the contract file stored by the service party and the signing party is calculated at first, then the hash stored on the block chain is compared, and if the hash is consistent with the hash stored on the block chain, the contract can be proved to be not tampered.
In this embodiment, in addition to notarization storage of the electronic contract through the blockchain, the following operations of accessing, viewing, executing, and the like are recorded, such processing is performed, if there is a problem of maintaining authority of the order, notarization can be performed according to the recorded information, and the notarization here is a stored 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 a sub-contract, specifically referring to fig. 3, another embodiment of the electronic contract generating method in the embodiment of the present invention includes:
301. compiling an order signing protocol program of the platform based on the block chain technology;
in this embodiment, the order contract agreement program is used to implement contract between the carrier, the shipper and the platform of the order; it will be appreciated that the order contract protocol program is a piece of computer programming language code program that executes on each node of the blockchain. The invention realizes the whole process of multi-party signing of electronic contracts by executing an order signing interface on a block chain and realizing a query interface and a signing interface by executing a code program, after contract data is initialized, authentication signing is executed after multi-party contracts are confirmed, the block chain platform broadcasts the electronic contracts signed by an order signing agreement program to each block chain node so that a plurality of signatory parties can pass through the query interface, in the process of controlling signing by the order signing agreement program in practical application, the electronic contracts on the order signing agreement program can be broadcast to each block chain node by the block chain platform, each block chain node corresponds to one signing party, and the steps are carried out until the last signatory party finishes signing, and the order signing agreement program adds a timestamp. Relevant data in the whole signing process can be stored in the block chain nodes, each block chain node comprises a timestamp connected with a previous block chain link point, so that the data cannot be tampered, once the data is recorded, the data in one block chain node is irreversible, each block chain node stores a complete distributed account copy, and the characteristics of data incapability of being tampered, impossibility of being forged, high availability, traceability and the like are realized by combining technologies such as a consensus mechanism, an encryption algorithm and the like, so that the trust problem among human beings is solved indirectly through a computer, and the final electronic contract cannot be tampered, and the record and the time of each signing contract cannot be tampered.
302. Acquiring order information selected by the carrier on the platform;
303. generating an electronic contract among the carrier, the shipper and the platform according to the order information through the order signing agreement program, and informing the carrier and the shipper to sign a contract;
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 performing hash operation through a hash algorithm to obtain a first hash value;
306. 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;
307. and sending the second hash value to a designated notarization place node in the block chain for visual storage.
In this embodiment, after the electronic contract is generated, a sub-contract for recording when the carrier executes the order or the corresponding electronic contract is further generated, specifically: generating a recording sub-contract according to the visual storage mode of the PDF file by the block chain; the recording sub-contract is provided with a self-filling information item, a selection information item, an episodic information item, a random number information item and a selection storage mode information item, and identity verification is performed by filling the recording sub-contract each time the PDF file is called or executed.
Further, the identity verification is performed by filling in the record sub-contract, and the method is implemented by the following processes:
acquiring information in the self-filling information item, the selection information item, the additional statement information item, the random number information item and the selection storage mode information item through the order signing protocol program;
performing hash calculation on the information to obtain an abstract hash;
signing the digest hash according to a preset private key to obtain a digital signature;
encrypting the data signature, the information and the abstract hash by using a public key provided in the contractor information of the party B in the PDF file, and sending the encrypted information to the party A or a platform for confirmation;
and generating a recording sub-contract from the confirmed information, and sending the recording sub-contract to the block chain for storage.
In this embodiment, in order to facilitate recording of operations such as viewing of an electronic contract by a sub-contract, before sending the PDF file to a legally recognized notary node on the block chain for visual storage, the method further includes:
extracting contractor information of the second party from the PDF file;
generating an execution sub-contract according to the party B information and the contractor information;
and setting the execution authority of the notarization department node of the block chain on the PDF file according to the execution sub-contract and contract terms in the PDF file.
Through the steps, the operation information of electronic contract signing, saving and subsequent execution, access and the like is stored on the nodes of the block chain, and all contract operations can be executed on the block chain, so that the signing contract record and the final contract content cannot be forged and falsified. And finally, adding a trusted timestamp on the final electronic contract content and the digital signatures of all signatory parties, so that the integrity and existing time points of the final electronic contract content can be solidified, and the electronic contract content and the signing time can be prevented from being forged and falsified.
Referring to fig. 4, another embodiment of the electronic contract generating method according to the embodiment of the present invention specifically includes:
401. the shipper issues a demand for release of the source at the platform.
402. The carrier selects the price quoted by the goods source at the platform, reminds the order to sign an electronic contract with legal effect with the platform when generating the order before the price quoted, and can preview the contract information after the price quoted.
403. After receiving the multi-party quoted prices, the goods owner selects the quoted prices to generate an order form, reminds the order form to sign an electronic contract with legal effect with the platform when generating the order form, and can preview complete contract information.
404. After the order is generated, the system transmits the generated pdf contract information containing the electronic seal, the party A information, the party B information, the signing time and other related information to the block chain for storage.
The blockchain is a string of data blocks generated by using a cryptographic method, so that the data added to the blockchain is ensured to be permanently stored, the data is not easy to be tampered once being stored, the data is public to all persons, 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 when new tiles occur, and each tile can also be uniquely identified by the tile's header hash value.
And adding a random number to the information needing to be stored to generate a hash value, then re-signing by the interest relatives or the witnesses to generate the hash value, and finally recording the hash value on the block chain. The information needing to be stored is formatted, the formatted information and the self-filling information can be separated and respectively stored and subjected to hash check, such as filling-in information, selection information, postscript information and random number information (violent cracking prevention). The private information needing to be stored and certified is not directly recorded on the block chain, the information correlative persons need to use the public key to encrypt and then select a storage mode by themselves or store the private information on the block chain which is considered to be suitable by themselves, and the information correlative persons need to store the information hash value, the signature of the correlative persons and the hash value together by using the public key to encrypt, so that the stored data can be prevented from being tampered, and the retrieval is convenient. If the information is about a contract which needs to be executed, the contract clause can authorize the block chain to execute the right of contract 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 store the complete file.
Since the pdf contract document needs to be called and viewed frequently on the platform, in order to ensure the safety and the convenience of use of the contract, all the pdf contract texts are separately saved on the server of the electronic contract of the company.
In one embodiment, in one case, the contract terms that the contract participants request for records through the contract record are first signed; in another case, the contract terms that the contract participants request to record through the contract record are updated for historical versions. Accordingly, information of a historical version of the contract clause may be obtained and the contract clause may be issued to the blockchain in association with the information of the historical version. For example, the 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 information of the historical version may include at least one of: the memory address of the historical version and the transaction serial number of the transaction in which the historical version is located. On one hand, contract terms are issued to the block chain, and each block chain node records a complete contract term, so that the integral data integrity cannot be influenced even if a certain node has the problem of data damage; meanwhile, the non-tamper property of the block chain storage data is fully utilized, so that lawbreakers are prevented from modifying contract clauses maliciously, and the safety of the recorded contract clauses is ensured. On the other hand, the information based on the contract terms and the historical versions is issued to the blockchain in an associated manner, so that the contract participants can trace the source of the signed contract terms and can inquire the evolution process of the contract terms from the initial version to the subsequent updated versions, and the efficiency of inquiring the contract terms by the contract participants is improved.
Through the implementation of the implementation mode, each order on the platform is guaranteed to be a valid order approved by law, convenience is brought to later-stage breach of accountability, and benefits of platform related parties are guaranteed.
With reference to fig. 5, the electronic contract generating method in the embodiment of the present invention is described above, and an electronic contract generating apparatus in the embodiment of the present invention is described below, where an embodiment of the electronic contract generating apparatus in the embodiment of the present invention includes:
a program generating module 51, configured to compile an order contract agreement program of the platform based on a block chain technology; the order contract agreement program is used for realizing contract among the carriers, the owners of goods and the platform of the orders;
the acquisition module 52 is used for acquiring the order information selected by the carrier on the platform;
a contract generating module 53, configured to generate an electronic contract between the carrier, the shipper, and the platform according to the order information through the order contract agreement program, and notify the carrier and the shipper to contract;
and the storage module 54 is configured to convert the signed electronic contract into a PDF file containing an electronic seal, and send the PDF file to a notarization department node approved by law on the block chain for visual storage.
In the technical scheme provided by the embodiment of the invention, by introducing a block chain technology, the agreement between a carrier, a cargo owner and a platform is stored on a block chain in the form of an electronic contract, the nodes of the block chain simultaneously comprise legally approved notarization department nodes, and all legal approval information for signing the contract can be checked on the block chain through unique contract numbers, so that the contract is ensured not to be falsified 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 generation of the trust loss behavior is avoided to the greatest extent. The security of the electronic contract is further guaranteed, and the leakage of the real information of the user is prevented.
Referring to fig. 6, an embodiment of an electronic contract generating apparatus according to the embodiment of the present invention includes:
a program generating module 51, configured to compile an order contract agreement program of the platform based on a block chain technology; the order contract agreement program is used for realizing contract among the carriers, the owners of goods and the platform of the orders;
the acquisition module 52 is used for acquiring the order information selected by the carrier on the platform;
a contract generating module 53, configured to generate an electronic contract between the carrier, the shipper, and the platform according to the order information through the order contract agreement program, and notify the carrier and the shipper to contract;
and the storage module 54 is configured to convert the signed electronic contract into a PDF file containing an electronic seal, and send the PDF file to a notarization department node approved by law on the block chain for visual storage.
Optionally, the electronic contract generating apparatus further includes an information marking module 55, which is specifically configured to:
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 party B information;
carrying out encryption operation on the identity information of the shipper and the selected final quoted price, and adding a preset second random number to obtain first party information;
and after the information of the party A and the information of the party B are marked by the platform through a time marking method, storing the information of the party A and the information of the party B into corresponding nodes on the block chain.
Optionally, the time stamping method adds a trusted time stamp to the national time service center interface called by the order signing protocol program.
Optionally, the electronic contract generating apparatus further includes an executing module 56, which is specifically configured to:
extracting contractor information of the second party from the PDF file;
generating an execution sub-contract according to the party B information and the contractor information;
and setting the execution authority of the notarization department node of the block chain on the PDF file according to the execution sub-contract and contract terms in the PDF file.
Optionally, the information marking module 55 includes a hash calculation unit 551 and a evidence storage unit 552, where:
the hash calculation unit 551 is configured to add a preset third random number to the PDF file, and perform a 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;
the evidence storing unit 552 is configured to send the second hash value to a notarization node specified in the blockchain for visual storage.
Optionally, the electronic contract generating apparatus further includes a verification module 57, which is specifically configured to:
generating a recording sub-contract according to the visual storage mode of the PDF file by the block chain; the recording sub-contract is provided with a self-filling information item, a selection information item, an additional information item, a random number information item and a selection storage mode information item, and identity verification is performed by filling the recording sub-contract each time the PDF file is called or executed.
Optionally, the identity verification is performed by filling in the record sub-contract, and the method is implemented by the following process:
acquiring information in the self-filling information item, the selection information item, the additional statement information item, the random number information item and the selection storage mode information item through the order signing protocol program;
performing hash calculation on the information to obtain an abstract hash;
signing the digest hash according to a preset private key to obtain a digital signature;
encrypting the data signature, the information and the abstract hash by using a public key provided in the contractor information of the party B in the PDF file, and sending the encrypted information to the party A or a platform for confirmation;
and generating a recording sub-contract from the confirmed information, and sending the recording sub-contract to the block chain for storage.
Based on the same embodiment as the electronic contract generating method of the present invention, the contents of the embodiment of the electronic contract generating apparatus are not described in detail in this embodiment.
Fig. 5 to 6 describe the electronic contract generating apparatus in the embodiment of the present invention in detail from the perspective of the modular functional entity, and the electronic contract generating apparatus in the embodiment of the present invention is described in detail from the perspective of hardware processing.
Fig. 7 is a schematic structural diagram of an embodiment of an electronic contract generating apparatus 1000 according to the present invention, which may have a relatively large difference due to different configurations or performances, and may include one or more processors (CPUs) 1010 (e.g., one or more processors) and a memory 1020, one or more storage media 1030 (e.g., one or more mass storage devices) storing an application program 1033 or data 1032. Memory 1020 and storage media 1030 may be, among other things, transient or persistent storage. The program stored on storage medium 1030 may include one or more modules (not shown), each of which may include a sequence of instructions operating on XXX device 1000. Still further, the processor 1010 may be configured to communicate with the storage medium 1030 to execute a series of instruction operations in the storage medium 1030 on the electronic-contract generating apparatus 1000.
The electronic-contract-based generation apparatus 1000 may also include one or more power sources 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 service, Mac OS X, Unix, Linux, FreeBSD, and so forth. Those skilled in the art will appreciate that the electronic-contract generating apparatus configuration shown in fig. 7 does not constitute a limitation of the electronic-contract-based generating apparatus, and may include more or fewer components than those shown, or some components may be combined, or 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, which may also be a volatile computer-readable storage medium, having stored therein instructions, which, when run on a computer, cause the computer to perform the steps of the electronic contract generating method.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute 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 (RAM), a magnetic disk or an optical disk, and the like.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. An electronic contract generating method, characterized by comprising:
compiling an order signing protocol program of the platform based on the block chain technology; the order contract agreement program is used for realizing contract between the carriers, the owners of the orders and the platform;
acquiring order information selected by the carrier on the platform;
generating an electronic contract among the carrier, the shipper and the platform according to the order information through the order signing agreement program, and informing the carrier and the shipper to sign a contract;
and converting the signed electronic contract into a PDF file containing electronic chapters, and sending the PDF file to a legally recognized notarization department node on the block chain for visual storage.
2. The electronic contract generating method according to claim 1, wherein after said generating an electronic contract between said carrier, shipper and platform according to said order information by said order contract agreement program and informing said carrier and shipper of contract, further comprising:
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 party B information;
carrying out encryption operation on the identity information of the shipper and the selected final quoted price together with a preset second random number to obtain first party information;
and after the information of the party A and the information of the party B are marked by the platform through a time marking method, storing the information of the party A and the information of the party B into corresponding nodes on the block chain.
3. The electronic contract generation method according to claim 2, wherein said time stamping method adds a trusted time stamp to said order contract agreement program calling a national time service center interface.
4. The electronic contract generation method according to any one of claims 1-3, further comprising, before said sending the PDF file to a legally recognized notary node on the blockchain for visual storage:
extracting contractor information of the second party from the PDF file;
generating an execution sub-contract according to the party B information and the contractor information;
and setting the execution authority of the notarization department node of the block chain on the PDF file according to the execution sub-contract and the contract clause in the PDF file.
5. The electronic contract generation method of claim 4, wherein said visually storing in said notary node sending a PDF file to legal approval on said blockchain comprises:
adding a preset third random number to the PDF file, and performing 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 designated notarization point node in the block chain for visual storage.
6. The electronic contract generating method according to any one of claims 1-3, further comprising, after said sending the PDF file to a legally recognized notary node on the blockchain for visual storage:
generating a recording sub-contract according to the visual storage mode of the PDF file by the block chain; the recording sub-contract is provided with a self-filling information item, a selection information item, an additional information item, a random number information item and a selection storage mode information item, and identity verification is performed by filling the recording sub-contract each time the PDF file is called or executed.
7. The electronic contract generating method according to claim 6, wherein said identity verification by filling in said record sub-contract is performed by the following procedures:
acquiring information in the self-filling information item, the selection information item, the additional statement information item, the random number information item and the selection storage mode information item through the order signing protocol program;
performing hash calculation on the information to obtain an abstract hash;
signing the digest hash according to a preset private key to obtain a digital signature;
encrypting the data signature, the information and the abstract hash by using a public key provided in the contractor information of the party B in the PDF file, and sending the encrypted information to the party A or a platform for confirmation;
and generating a recording sub-contract from the confirmed information, and sending the recording sub-contract to the block chain for storage.
8. An electronic-contract generating apparatus, characterized by comprising:
the program generating module is used for compiling an order signing protocol program of the platform based on the block chain technology; the order contract agreement program is used for realizing contract between the carriers, the owners of the orders and the platform;
the acquisition module is used for acquiring the order information selected by the carrier on the platform;
the contract generating module is used for generating an electronic contract among the carrier, the shipper and the platform according to the order information through the order signing agreement program and informing the carrier and the shipper to sign a contract;
and the storage module is used for converting the signed electronic contract into a PDF file containing an electronic seal and sending the PDF file to a notarization department node approved by law on the block chain for visual storage.
9. An electronic-contract generating apparatus, characterized by comprising: a memory having instructions stored therein and at least one processor, the memory and the at least one processor interconnected by a line;
the at least one processor invokes the instructions in the memory to cause the electronic-contract generation apparatus to perform the electronic-contract generation method of any one of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, the computer program, when being executed by a processor, implementing the electronic contract generation method according to any one of claims 1 to 7.
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