CN108197891B - Electronic signing device and method based on block chain - Google Patents
Electronic signing device and method based on block chain Download PDFInfo
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- CN108197891B CN108197891B CN201810012434.1A CN201810012434A CN108197891B CN 108197891 B CN108197891 B CN 108197891B CN 201810012434 A CN201810012434 A CN 201810012434A CN 108197891 B CN108197891 B CN 108197891B
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- 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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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
Abstract
The invention provides an electronic contract signing device and method based on a block chain, which relate to the technical field of electronic contract signing, and comprise mobile equipment, a server and a block chain network, wherein the mobile equipment is used for providing services such as real-name information input and electronic contract signing for a user; the server is controlled by an authority certification authority and is used for receiving and processing the service request sent by the mobile equipment in real time; the block chain is composed of m authoritative certification authority nodes, and data received by a single authoritative certification authority node is packaged by using a block chain technology to form a block to be commonly identified to all nodes of the whole network for storage. The invention not only can make the signed contract have authenticity, reliability and non-tamper property, but also can provide effective certification documents through an authority certification authority in time under the condition of default of users, so that the signed electronic contract becomes credible judicial evidence.
Description
Technical Field
The invention relates to the technical field of electronic contract signing, in particular to an electronic contract signing device and method based on a block chain.
Background
With the rapid development of computer technology, information technology, internet technology and communication technology, many offline behaviors are converted into online operations, and the online behaviors involving legal scope like electronic contracts require more technical support to ensure the corresponding legal effect.
At present, most electronic signing processes are signed on a third-party platform, the legal rights and interests of parties cannot be maintained timely when default conditions occur, contracts are stored on the third-party platform and are easy to be tampered or damaged, once the contracts are tampered or damaged, a series of bad influences are generated, and the rights and interests of users are positively and negatively influenced.
Disclosure of Invention
In order to solve the problems of the current electronic subscription, an aspect of the present invention provides an electronic subscription apparatus based on a block chain, including a mobile device, a server and a block chain,
the mobile equipment is used for the user to carry out identity information verification, electronic contract signing, electronic contract inquiry and request to issue a certification document;
the server is controlled by an authority certification mechanism and is used for executing service tasks required by the mobile equipment, returning operation results to the mobile equipment, providing the block chain access interface, and performing corresponding operation and storage on data information by using the block chain;
the block chain is an alliance chain constructed by a plurality of authority certification authorities and used for storing data information uploaded by the mobile equipment through the server, the block chain is used for packaging the data information to form a block, and the block chain is used for obtaining data consistency through a consensus algorithm and then storing the data consistency to all the authority certification authority nodes.
Preferably, the mobile device is a mobile phone, tablet or other network-enabled electronic device.
Preferably, the mobile device comprises a real-name information input module, an application certification module, a contract creation module, a contract signing module, a contract sending module and a contract inquiry module, wherein,
the real-name information input module is used for inputting relevant real-name information by a user according to prompts, wherein the relevant real-name information comprises a real name of the user, a mobile phone number, an identity card, a signature, a fingerprint and face identification information;
the application certification module can be used for making a request for issuing a certification document to an authority certification authority by a user and acquiring a certification process;
the contract creating module is used for creating contracts through the user, the module is configured with templates of contracts of different types in the process of creating the contracts, the user can directly generate the contracts according to the contract type selection template or manually input contract contents to generate electronic contracts, and finally, the contract user is selected;
the contract signing module can be used for signing on the electronic contract by a user;
the contract sending module can send the signed electronic contract to a server;
and the contract inquiry module can be used for inquiring the signature state of the electronic contract by a user, namely whether all the contractors involved in the contract complete signature or not.
Preferably, the server comprises a contract generation module, an encryption and decryption module, an information judgment module, a real-name information verification module, a contract synthesis module, a prover module and a block chain access interface;
the contract generation module generates an electronic contract according to a contract model selected by a user or contract content input by the user;
the encryption and decryption module is used for carrying out encryption operation on the electronic contract subjected to signature by using an encryption algorithm and forwarding the encrypted electronic contract to the block chain, and when a user wants to acquire the content of the electronic contract, the encryption contract read out from the block chain is decrypted by the encryption and decryption module and then forwarded to a user side for the user to browse;
the information judgment module judges the information received by the server and then performs corresponding operation according to the result;
the real-name information verification module verifies the real-name information of the user and verifies the real-name information used by the user in the contract signing process by acquiring the user real-name information stored in the block chain;
the contract synthesis module synthesizes the signature information in the electronic contract with the signature completed into one electronic contract;
the certification module is used for making a certification request about a contract to a corresponding authority certification authority by a user;
and the block chain access interface is used for forwarding the data content in the server to a block chain, and packaging and storing the data by using a block chain technology.
Preferably, the block chain comprises an information writing module, an information reading module, a block creating module, a block consensus module, a chain updating module and a chain storage module;
the information writing module is used for acquiring data information sent by the server through the block chain access interface;
the information reading module reads corresponding data information in the block chain according to a request of the server;
the block creating module packs data information in a period of time into blocks by using a block chain technology;
the block consensus module selects part of authoritative certification authority nodes to jointly identify a new block by using a DPOS authorized equity certification mechanism;
the chain updating module links the new blocks which are identified by the consensus into the block chain;
and the chain storage module and the ownership certification authority node store the updated block chain content.
Another aspect of the present invention provides an electronic subscription method based on a block chain, including the following steps:
s1, real-name information input;
s2, contract creation;
s3, contract signing;
and S4, operating the block chain.
Preferably, s1. real name information entry specifically includes the steps of:
s101: the user inputs corresponding real-name information from the real-name information input module according to the requirement, and uploads the corresponding information to the server;
s102: after the server receives the information and the information judgment module judges the information, the server forwards the received real-name information of the user to the block chain module through the block chain access interface, and the information is packaged and stored by using a block chain technology.
S2. contract creation specifically includes the following steps:
s201: the user can select a template to create a contract or manually input contract content according to requirements in a contract creating module, and the information is sent to the server;
s202: the server receives the information and generates a contract after judgment, and sends the generated electronic contract to a contract signature module of the user;
s203: the user can see the electronic contract needing signature in the contract signing module, and can sign the electronic contract at the corresponding position of the contract through the mobile device.
S3. the contract signature specifically includes the steps of:
s301: the user carries out signature operation on the contract signing module, a timestamp is added after the signature is finished, the electronic contract can be used as an electronic evidence to prevent the user from having a repudiation behavior in the later period if legal disputes occur, and the electronic contract with the signature and the timestamp is sent to the contract sending module;
s302: the contract sending module can select the user of the contract needing signature, and sends the corresponding information to the server through the module;
s303: the server receives the information and then carries out real-name information verification;
s304: extracting signature information of a user, acquiring real-name information which is input by the user before from the block chain according to the user information, performing algorithm comparison on the signature information in the real-name information and the signature information extracted from the contract at this time, and entering step 306;
s305: acquiring the real-name information input by the user before through an information reading module of the block chain, returning the result to a real-name information verification module of the server, and entering step 304;
s306: judging the comparison result, if the verification is not passed, entering step 307; if the verification is passed, go to step 308;
s307: if the user real-name verification fails, the user enters a real-name information input module and re-inputs real-name information;
s308: step 309 is executed after the user real name verification is passed, and then step 310 is executed;
s309: sending the contract attached with the current user signature and the timestamp to a block chain for encapsulation and storage;
s310: judging whether all the signatories complete signing, if not, entering step 311, and if all the signatories complete signing, entering step 312;
s311: sending the contract which needs to be signed by the user to a contract signing module of the user which needs to be signed, and reminding the user to sign the contract;
s312: the signature information of all the signing users is synthesized into a contract in a contract synthesis module;
s313: the final version of the electronic contract generated in step 312 is sent to a contract query module in the mobile device of the corresponding subscriber for the subscriber to query the latest electronic contract signature information;
s314: encrypting the final edition electronic contract by using an encryption algorithm in an encryption and decryption module;
s315: and sending the encrypted electronic contract to a block chain, and packaging and storing the information by using a block chain technology.
Preferably, s4. the block chain operation specifically includes the steps of:
s401: receiving data information uploaded by a server through an information writing module, classifying according to different information types, and then packaging the information;
a part of authoritative certification authority nodes in the block chain encapsulate the same kind of information received by the whole network in a period of time into blocks by using a block chain technology;
the authority certification authority nodes are dynamically selected based on a DPOS authorized right certification mechanism, and the selected nodes need to package new blocks according to rules within a period of time;
s402: after the selected authoritative certification authority nodes create new blocks, consensus is carried out according to a DPOS authorized right certification mechanism;
s403: the selected authoritative certification authority nodes link the new blocks which acquire the consensus to the original chains;
s404: the authoritative certification authority nodes on-line throughout the network will store the latest blockchain content to the local server, and the off-line nodes will automatically store the latest blockchain content upon re-login.
The invention provides an Internet real-name authentication unified authorization platform and a method, which have the beneficial effects that: the method not only can ensure that the electronic contract storage has extremely high security and non-tamper property, but also can ensure that the ownership certification authority in the network provides certification service for users, and the users can select corresponding authority certification authorities to obtain evidence certification documents according to self requirements.
Drawings
Fig. 1 is an architecture schematic diagram of an electronic signing device based on a block chain according to the present invention;
FIG. 2 is a main flow chart of the electronic signing method of the block chain of the present invention;
fig. 3 is a network topology diagram of the blockchain of the present invention.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1, the electronic signing apparatus based on a block chain according to this embodiment includes a mobile device, a server, and a block chain, where the mobile device is a mobile phone, a tablet, or other electronic devices that can be networked, and is used for a user to perform identity information verification, electronic contract signing, electronic contract inquiry, and request for issuing a certification document; the server is controlled by an authority certification mechanism and is used for executing the service tasks required by the mobile equipment and returning the operation results to the mobile equipment, providing a block chain access interface and using a block chain to perform corresponding operation and storage on the data information; the block chain is an alliance chain constructed by a plurality of authority certification authorities and used for storing data information uploaded by the mobile equipment through the server, the data information is packed to form blocks by using the block chain, and the data consistency is obtained through a consensus algorithm and then stored to all the authority certification authority nodes.
The mobile equipment comprises a real-name information input module, an application and certification module, a contract creation module, a contract signature module, a contract sending module and a contract inquiry module, wherein,
the real-name information input module is used for inputting relevant real-name information by a user according to prompts, wherein the relevant real-name information comprises a user real name, a mobile phone number, an identity card, a signature, a fingerprint and face identification information;
the system comprises an application and certification module, a certification authority and a certification processing module, wherein a user can provide a request for issuing a certification document to the authority certification authority through the application and certification module and can know the certification process through the module;
the contract creating module is used for creating contracts through the contract creating module, the contract creating module is configured with templates of different types of contracts in the contract creating process, a user can directly generate contracts according to the contract type selection template or manually input contract contents to generate electronic contracts, and finally a signing user is selected;
a contract signing module by which a user can sign on an electronic contract;
a contract sending module that can send the signed electronic contract to a server;
and the contract inquiry module can be used for inquiring the signature state of the electronic contract by a user, namely whether all the contractors involved in the contract have finished signing or not.
The server comprises a contract generating module, an encryption and decryption module, an information judgment module, a real-name information verification module, a contract synthesis module, a certification module and a block chain access interface;
the contract generation module generates an electronic contract according to a contract model selected by a user or contract content input by the user;
the encryption and decryption module is used for carrying out encryption operation on the electronic contract subjected to signature by using an encryption algorithm and forwarding the encrypted electronic contract to the block chain, and when a user wants to acquire the content of the electronic contract, the encryption contract read out from the block chain is decrypted by the encryption and decryption module and then forwarded to a user side for the user to browse;
the information judgment module judges the information received by the server and then performs corresponding operation according to the result;
the real-name information verification module is used for verifying the real-name information of the user and verifying the real-name information used by the user in the contract signing process by acquiring the user real-name information stored in the block chain;
a contract synthesis module, which synthesizes the signature information in the electronic contract with completed signature into one electronic contract;
the system comprises a certification module, a certification module and a certification module, wherein a user can provide a certification request about a certain contract to a corresponding authority certification authority through the certification module;
and the blockchain access interface is used for forwarding the data content in the server to a blockchain, and packaging and storing the data by using a blockchain technology.
The block chain comprises an information writing module, an information reading module, a block creating module, a block consensus module, a chain updating module and a chain storage module;
the information writing module is used for acquiring data information sent by the server through the block chain access interface;
the information reading module reads corresponding data information in the block chain according to a request of the server;
the block creating module packs data information in a period of time into blocks by using a block chain technology;
the block consensus module selects part of authoritative certification authority nodes to jointly identify a new block by using a DPOS authorized equity certification mechanism;
a chain updating module for linking the new blocks which are identified by the consensus into the block chain;
and the chain storage module is used for storing the updated content of the block chain by the ownership certificate authority node.
In the following, how to implement specific steps between modules will be described in detail with reference to the drawings, and a main flow of the block chain electronic subscription method of this embodiment is shown in fig. 2.
S1, real-name information is recorded,
the method specifically comprises the following steps:
s101: the user inputs corresponding real-name information from the real-name information input module according to the requirement, and uploads the corresponding information to the server;
s102: after the server receives the information and the information judgment module judges the information, the server forwards the received real-name information of the user to the block chain module through the block chain access interface, and the information is packaged and stored by using a block chain technology.
S2, contract creation, which specifically comprises the following steps:
s201: the user can select a template to create a contract or manually input contract content according to requirements in a contract creating module, and the information is sent to the server;
s202: the server receives the information and generates a contract after judgment, and sends the generated electronic contract to a contract signature module of the user;
s203: the user can see the electronic contract needing signature in the contract signing module, and can sign the electronic contract at the corresponding position of the contract through the mobile device.
S3, contract signing, which specifically comprises the following steps:
s301: the user carries out signature operation on the contract signing module, a timestamp is added after the signature is finished, the electronic contract can be used as an electronic evidence to prevent the user from having a repudiation behavior in the later period if legal disputes occur, and the electronic contract with the signature and the timestamp is sent to the contract sending module;
s302: the contract sending module can select the user of the contract needing signature, and sends the corresponding information to the server through the module;
s303: the server receives the information and then carries out real-name information verification;
s304: extracting signature information of a user, acquiring real-name information which is input by the user before from the block chain according to the user information, performing algorithm comparison on the signature information in the real-name information and the signature information extracted from the contract at this time, and entering step 306;
s305: acquiring the real-name information input by the user before through an information reading module of the block chain, returning the result to a real-name information verification module of the server, and entering step 304;
s306: judging the comparison result, if the verification is not passed, entering step 307; if the verification is passed, go to step 308;
s307: if the user real-name verification fails, the user enters a real-name information input module and re-inputs real-name information;
s308: step 309 is executed after the user real name verification is passed, and then step 310 is executed;
s309: sending the contract attached with the current user signature and the timestamp to a block chain for encapsulation and storage;
s310: judging whether all the signatories complete signing, if not, entering step 311, and if all the signatories complete signing, entering step 312;
s311: sending the contract which needs to be signed by the user to a contract signing module of the user which needs to be signed, and reminding the user to sign the contract;
s312: the signature information of all the signing users is synthesized into a contract in a contract synthesis module;
s313: the final version of the electronic contract generated in step 312 is sent to a contract query module in the mobile device of the corresponding subscriber for the subscriber to query the latest electronic contract signature information;
s314: encrypting the final edition electronic contract by using an encryption algorithm in an encryption and decryption module;
s315: and sending the encrypted electronic contract to a block chain, and packaging and storing the information by using a block chain technology.
S4, running a block chain, and specifically comprising the following steps:
s401: receiving data information uploaded by a server through an information writing module, classifying according to different information types, and then packaging the information;
a part of authoritative certification authority nodes in the block chain encapsulate the same kind of information received by the whole network in a period of time into blocks by using a block chain technology;
the authority certification authority nodes are dynamically selected based on a DPOS authorized right certification mechanism, and the selected nodes need to package new blocks according to rules within a period of time;
s402: after the selected authoritative certification authority nodes create new blocks, consensus is carried out according to a DPOS authorized right certification mechanism;
s403: the selected authoritative certification authority nodes link the new blocks which acquire the consensus to the original chains;
s404: the authoritative certification authority nodes on-line throughout the network will store the latest blockchain content to the local server, and the off-line nodes will automatically store the latest blockchain content upon re-login.
As shown in fig. 3, a network topology diagram of a block chain is a P2P network, and data interactive transmission can be performed between any two authoritative certification authority nodes in the network, so that any authoritative certification authority node can receive data information and a service request uploaded by a user.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The signing method of the electronic signing device based on the block chain is characterized in that the electronic signing device comprises a mobile device, a server and the block chain, wherein the mobile device is used for a user to carry out identity information verification, electronic contract signing, electronic contract inquiry and request for issuing a certification file; the server is controlled by an authority certification mechanism and is used for executing service tasks required by the mobile equipment, returning operation results to the mobile equipment, providing the block chain access interface, and performing corresponding operation and storage on data information by using the block chain; the block chain is an alliance chain constructed by a plurality of authority certification authorities and used for storing data information uploaded by the mobile equipment through the server, the block chain is used for packaging the data information to form a block, and the block chain is used for obtaining data consistency through a consensus algorithm and then storing the data consistency to all the authority certification authority nodes; the block chain comprises an information writing module, an information reading module, a block creating module, a block consensus module, a chain updating module and a chain storage module; the information writing module is used for acquiring data information sent by the server through the block chain access interface; the information reading module reads corresponding data information in the block chain according to a request of the server; the block creating module packs data information in a period of time into blocks by using a block chain technology; the block consensus module selects part of authoritative certification authority nodes to jointly identify a new block by using a DPOS authorized equity certification mechanism; the chain updating module links the new blocks which are identified by the consensus into the block chain; the chain storage module is used for storing the updated block chain content by the ownership certificate authority node; the method comprises the following steps: s1, real-name information input; s2, contract creation; s3, contract signing; s4, running a block chain;
s4, the block chain operation specifically comprises the following steps: s401: receiving data information uploaded by a server through an information writing module, classifying according to different information types, and then packaging the information; a part of authoritative certification authority nodes in the block chain encapsulate the same kind of information received by the whole network in a period of time into blocks by using a block chain technology; the authority certification authority nodes are dynamically selected based on a DPOS authorized right certification mechanism, and the selected nodes need to package new blocks according to rules within a period of time; s402: after the selected authoritative certification authority nodes create new blocks, consensus is carried out according to a DPOS authorized right certification mechanism; s403: the selected authoritative certification authority nodes link the new blocks which acquire the consensus to the original chains; s404: the online authoritative certification authority node of the whole network stores the latest block chain content to a local server, and the offline node automatically stores the latest block chain content when logging in again; the network structure topological diagram of the block chain is a P2P network, any two authoritative certification authority nodes in the network can perform data interactive transmission, and any authoritative certification authority node can receive data information and service requests uploaded by users.
2. The method of claim 1, wherein the mobile device is a cell phone, tablet, or other network-enabled electronic device.
3. The method according to claim 2, wherein the mobile device comprises a real-name information input module, an application certification module, a contract creation module, a contract signature module, a contract sending module and a contract query module, wherein the real-name information input module is used for a user to input related real-name information according to prompts, and the related real-name information comprises a user real name, a mobile phone number, an identity card, a signature, a fingerprint and face identification information; the application certification module can be used for making a request for issuing a certification document to an authority certification authority by a user and acquiring a certification process; the contract creating module is used for creating contracts through the user, the module is configured with templates of contracts of different types in the process of creating the contracts, the user can directly generate the contracts according to the contract type selection template or manually input contract contents to generate electronic contracts, and finally, the contract user is selected; the contract signing module can be used for signing on the electronic contract by a user; the contract sending module can send the signed electronic contract to a server; the contract inquiry module can be used for inquiring the signature state of the electronic contract by a user, namely whether all the contractors involved in the contract have finished signing or not.
4. The method of claim 1, wherein the server comprises a contract generation module, an encryption and decryption module, an information judgment module, a real-name information verification module, a contract composition module, a certification module and a blockchain access interface; the contract generation module generates an electronic contract according to a contract model selected by a user or contract content input by the user; the encryption and decryption module is used for carrying out encryption operation on the electronic contract subjected to signature by using an encryption algorithm and forwarding the encrypted electronic contract to the block chain, and when a user wants to acquire the content of the electronic contract, the encryption contract read out from the block chain is decrypted by the encryption and decryption module and then forwarded to a user side for the user to browse; the information judgment module judges the information received by the server and then performs corresponding operation according to the result; the real-name information verification module verifies the real-name information of the user and verifies the real-name information used by the user in the contract signing process by acquiring the user real-name information stored in the block chain; the contract synthesis module synthesizes the signature information in the electronic contract with the signature completed into one electronic contract; the certification module is used for making a certification request about a contract to a corresponding authority certification authority by a user; and the block chain access interface is used for forwarding the data content in the server to a block chain, and packaging and storing the data by using a block chain technology.
5. The method according to claim 1, characterized in that s1. real name information entry comprises in particular the steps of:
s101: the user inputs corresponding real-name information from the real-name information input module according to the requirement, and uploads the corresponding information to the server; s102: after the server receives the information and the information judgment module judges the information, the server forwards the received real-name information of the user to the block chain module through the block chain access interface, and the information is packaged and stored by using a block chain technology.
6. The method according to claim 1, characterized in that s2. contract creation specifically comprises the following steps: s201: the user can select a template to create a contract or manually input contract content according to requirements in a contract creating module, and the information is sent to the server; s202: the server receives the information and generates a contract after judgment, and sends the generated electronic contract to a contract signature module of the user; s203: the user can see the electronic contract needing signature in the contract signing module, and can sign the electronic contract at the corresponding position of the contract through the mobile device.
7. The method according to claim 1, characterized in that s3. contract signature comprises in particular the following steps: s301: the user carries out signature operation on the contract signing module, a timestamp is added after the signature is finished, the electronic contract can be used as an electronic evidence to prevent the user from having a repudiation behavior in the later period if legal disputes occur, and the electronic contract with the signature and the timestamp is sent to the contract sending module; s302: the contract sending module can select the user of the contract needing signature, and sends the corresponding information to the server through the module; s303: the server receives the information and then carries out real-name information verification; s304: extracting signature information of a user, acquiring real-name information which is input by the user before from the block chain according to the user information, performing algorithm comparison on the signature information in the real-name information and the signature information extracted from the contract at this time, and entering step 306; s305: acquiring the real-name information input by the user before through an information reading module of the block chain, returning the result to a real-name information verification module of the server, and entering step 304; s306: judging the comparison result, if the verification is not passed, entering step 307; if the verification is passed, go to step 308; s307: if the user real-name verification fails, the user enters a real-name information input module and re-inputs real-name information; s308: step 309 is executed after the user real name verification is passed, and then step 310 is executed; s309: sending the contract attached with the current user signature and the timestamp to a block chain for encapsulation and storage; s310: judging whether all the signatories complete signing, if not, entering step 311, and if all the signatories complete signing, entering step 312; s311: sending the contract which needs to be signed by the user to a contract signing module of the user which needs to be signed, and reminding the user to sign the contract; s312: the signature information of all the signing users is synthesized into a contract in a contract synthesis module; s313: the final version of the electronic contract generated in step 312 is sent to a contract query module in the mobile device of the corresponding subscriber for the subscriber to query the latest electronic contract signature information; s314: encrypting the final edition electronic contract by using an encryption algorithm in an encryption and decryption module; s315: and sending the encrypted electronic contract to a block chain, and packaging and storing the information by using a block chain technology.
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| CN201810012434.1A CN108197891B (en) | 2018-01-05 | 2018-01-05 | Electronic signing device and method based on block chain |
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| CN201810012434.1A CN108197891B (en) | 2018-01-05 | 2018-01-05 | Electronic signing device and method based on block chain |
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| CN108197891B true CN108197891B (en) | 2021-12-10 |
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| CN201810012434.1A Active CN108197891B (en) | 2018-01-05 | 2018-01-05 | Electronic signing device and method based on block chain |
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| CN109255252B (en) * | 2018-07-19 | 2022-04-01 | 广州柿子信息技术有限公司 | Personnel management method and system based on block chain |
| CN109063097B (en) * | 2018-07-27 | 2020-06-23 | 广州天高软件科技有限公司 | Data comparison and consensus method based on block chain |
| US11223481B2 (en) * | 2018-08-29 | 2022-01-11 | J2 Cloud Services, Llc | Electronic document signing using blockchain |
| CN109345243B (en) * | 2018-09-18 | 2022-08-05 | 百度在线网络技术（北京）有限公司 | Data processing and verifying method, device, equipment and medium for block chain |
| CN109816329A (en) * | 2018-12-14 | 2019-05-28 | 深圳壹账通智能科技有限公司 | Intelligent contract signature method, system, computer equipment and storage medium |
| CN109559257A (en) * | 2018-12-14 | 2019-04-02 | 深圳壹账通智能科技有限公司 | Contract generation method, device, equipment and readable storage medium storing program for executing based on block chain |
| CN109741068B (en) * | 2018-12-25 | 2021-04-27 | 银清科技有限公司 | Online banking cross-row signing method, device and system |
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| CN110009510A (en) * | 2019-01-22 | 2019-07-12 | 阿里巴巴集团控股有限公司 | Transaction processing system, method, calculating equipment and storage medium based on block chain |
| CN110111206A (en) * | 2019-04-04 | 2019-08-09 | 国美金控投资有限公司 | It is a kind of that guarantor's Contract Signing system and method is prolonged based on block chain |
| CN110046916A (en) * | 2019-04-09 | 2019-07-23 | 深圳市元征科技股份有限公司 | A kind of electronic signature method, apparatus, equipment and computer readable storage medium |
| CN110324149B (en) * | 2019-05-17 | 2021-12-07 | 杭州亦笔科技有限公司 | Evidence fixed verification method after multi-party consensus signature |
| CN110349056B (en) * | 2019-06-03 | 2021-04-02 | 创新先进技术有限公司 | Service processing system and method based on block chain |
| US10942920B2 (en) | 2019-06-03 | 2021-03-09 | Advanced New Technologies Co., Ltd. | Service processing system and method based on blockchain |
| CN110782347B (en) * | 2019-10-22 | 2023-02-03 | 全链通有限公司 | Intelligent contract signing method, device and medium based on block chain |
| CN112532416A (en) * | 2019-12-26 | 2021-03-19 | 数海信息技术有限公司 | Security state information management method and system based on consensus mechanism |
| CN111445209A (en) * | 2020-03-27 | 2020-07-24 | 北京瑞卓喜投科技发展有限公司 | Block chain-based electronic contract signing method and device and storage medium |
| CN112507021A (en) * | 2020-11-23 | 2021-03-16 | 厦门产业技术研究院 | Block chain-based electronic contract management method and device and equipment |
| CN112686650A (en) * | 2021-02-18 | 2021-04-20 | 深圳星算科技有限公司 | Electronic contract signature application equipment device based on block chain intelligent contract technology |
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