CN110941860B - Block chain and biological feature based electronic contract associable analysis verification method - Google Patents
Block chain and biological feature based electronic contract associable analysis verification method Download PDFInfo
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- CN110941860B CN110941860B CN201911259293.4A CN201911259293A CN110941860B CN 110941860 B CN110941860 B CN 110941860B CN 201911259293 A CN201911259293 A CN 201911259293A CN 110941860 B CN110941860 B CN 110941860B
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
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- G—PHYSICS
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- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
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- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
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Abstract
The invention provides an electronic contract associable analysis verification method based on a block chain and biological characteristics, and relates to the technical field of block chains; the method comprises the steps that firstly, a block chain complete node is deployed to an electronic contract service related party, and a front processing node and a digital asset safe deposit box of a service system of the service related party are deployed; then, connecting a front processing node of the service system with the digital asset safe deposit box for data interaction; storing the signed biological identification characteristic information of the human body, the enterprise license information and other multi-party related information into the block chain electronic contract and carrying out cross validation; when equipment or information of any node in the block chain network goes wrong, backup information is automatically obtained from other nodes, and an internal auditing department and an external supervision department automatically audit in real time and supervise contract information through the block chain network. The method can ensure the characteristics of reality, effectiveness, non-falsification, traceability, audit and the like of the electronic contract, and improves the effectiveness, convenience and real-time penetrability of audit and supervision of the electronic contract.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to an electronic contract associable analysis verification method based on a block chain and biological characteristics.
Background
Compared with an electronic contract, the paper contract relates to the problems of repeated modification, complicated chapter using process, express delivery or manual delivery, difficult filing and reading and the like, the traditional contract signing process is transferred to the Internet by the electronic contract, and the electronic contract can realize the advantages of being online, paperless, capable of improving the efficiency, reducing the signing cost and the like. In the traditional contract signing process, both contracts are required to be used as legal contracts and evidence needs to be permanently stored, the conventional paper contract 'white paper and black characters' cannot be relied on, after the paper contract is converted into an electronic contract, the electronic contract platform serves as a neutral third party role to prove that the electronic contract platform cannot falsify the contract, but technically, the electronic contract platform is possible to falsify the contract content.
The block chain technology is very suitable for storing certificates of electronic contracts due to the characteristics that data cannot be tampered and the like. Blockchains are essentially a decentralized data retention mechanism, and are considered to be able to securely store data. In the blockchain, information is stored in a chain-type scattered mode and is cross-verified, so that the information cannot be forged or falsified. The intelligent contracts for blockchains can be automatically executed without any central authority's audit. The block chain electronic contract is a novel electronic contract which is characterized in that on the basis of the traditional electronic contract, a block chain technology is added in each link of contract signing, filing, storage and the like so as to improve the safety and the effectiveness. Specifically, when the electronic contract is signed, the identity of the contract signer can be verified by means of the block chain technology, and a reliable digital certificate and an electronic signature are provided; after the contract is signed, the electronic signature, the contract content and the signing process of the user can be filed and stored through the block chain technology. The electronic text signed by the contract, the electronic signature of the party and the signing process and time information can be used as electronic data to be imprinted into a block chain and are dispersed on the whole network, and any person who wants to unilaterally modify or delete the contract is almost impossible, so that the safety, reliability and verifiability of the electronic contract are greatly enhanced, and decentralized certificate storage can be achieved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the block chain and biological feature-based electronic contract associable analysis and verification method, so that the characteristics of reality, effectiveness, no falsification, traceability, audit and the like of the electronic contract are guaranteed, and the effectiveness, convenience and real-time penetrability of audit and supervision of the electronic contract are improved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the electronic contract associable analysis verification method based on the block chain and the biological characteristics comprises the following steps:
step 1, deploying complete nodes of a block chain network to electronic contract service related parties, and ensuring network intercommunication; the service related parties comprise signing parties of the contract, consulting parties of the contract, verification and execution of the contract and auditing all the related parties;
step 2, deploying a front processing node of the service system to the service system of the electronic contract service related party;
step 3, deploying a digital asset safe deposit box for storing the biological characteristics, the company certificate, the network credit contract and the public and private keys of the legal person or the authorized agent;
step 4, modifying and configuring a service system or a network credit service system of a party related to the electronic contract service, and connecting a front processing node of the service system and a digital asset safe deposit box in a restful mode to perform data interaction;
step 5, generating a public and private key by using the digital asset safe deposit box, and storing the public and private key and the biological characteristic information of related personnel into the digital asset safe deposit box after authentication;
step 6, inquiring and signing a contract by a company legal person or an authorized agent through the function of calling the preposed processing node of the service system; encrypting and digitally signing the contract by calling the function of the digital asset safe deposit box through the service system to obtain a binary file of the block chain electronic contract;
step 7, the pre-processing node automatically writes the hash values of the biological characteristic information of the certified justice and contract signer, the hash values of the certificate information of the enterprise subjected to cross verification and the signing timestamp information into a binary file of the block chain electronic contract; meanwhile, the fund and settlement information in the contract are digitized and then written into a binary file of the block chain electronic contract;
the hash value of the biological characteristic information of the certified justice and contract signer is started with 0x 000 xFF 0x 000 xFF and stored under the contracting party data item of the binary file of the block chain electronic contract;
the hash value of the cross-verified company license information is started with 0x 000 xFF 0x 000 xFF and stored under the contracting party data item of the binary file of the block chain electronic contract;
the fund and settlement information in the contract are encrypted and then independently stored under the fund data item in the binary file of the block chain electronic contract, and the beginning of the fund and settlement information is 0xFF 0xFF 0x 000 x00, and a query verification interface is provided;
step 8, the block chain node transmits the binary file of the block chain electronic contract to other nodes of the block chain by packaging and using GRPC after asymmetric encryption, wherein the binary file comprises the nodes of other signing parties of the contract and the nodes of a supervision and audit party; the financial information of the network credit business system and the fund information of the contract are automatically cross checked and audited without consensus; other nodes of the blockchain comprise an authentication node, a non-authentication node and a query node;
and 9, when equipment or information of any node in the blockchain network has a problem, automatically acquiring backup information from other nodes, and performing automatic real-time audit and supervision contract information penetration by an internal audit department and external supervision through the blockchain network.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: according to the block chain and biological characteristic-based electronic contract associable analysis and verification method, multiple pieces of related information such as signed human biological identification characteristic information and enterprise license information are stored in the block chain electronic contract and are verified in a cross mode, so that the characteristics of reality, effectiveness, non-falsification, traceability, audit and the like of the electronic contract can be guaranteed, and the effectiveness, convenience and real-time penetrability of audit and supervision of the electronic contract are improved; meanwhile, the Hash value and the electronic contract are integrated, and a safety verification mode is provided after the fund information of the electronic contract is split, encrypted and stored, so that the effectiveness and the safety of the electronic contract are effectively improved, and convenient audit and penetration supervision are guaranteed.
Drawings
Fig. 1 is a flowchart of an electronic contract associable analysis verification method based on a blockchain and a biometric feature according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In this embodiment, the block chain and biometric-based electronic contract associable analysis and verification method, as shown in fig. 1, includes the following steps:
step 1, deploying complete nodes of a block chain network to electronic contract service related parties, and ensuring network intercommunication; the service related parties comprise signing parties of the contract, consulting parties of the contract, verification and execution of the contract and auditing all the related parties;
a blockchain is a distributed system consisting of many nodes communicating with each other. The blockchain runs an application called a chain code, saves state and ledger data, and executes transactions. Since the transaction is an operation invoked on the chain code, the chain code is the central element of the block chain structure. Transactions must be "endorsed" and only endorsed transactions can be acknowledged and status affected. There are one or more special chain codes for management functions (functions) and parameters, which are collectively referred to as system chain codes.
A node (peer) refers to a communication entity of a block chain. The nodes belong to a logic concept, and a plurality of nodes of different types can run on the same physical server; the types of nodes can be divided into the following three types:
(1) client or submitting client (client or submitting-client): the client submits an actual transaction call to the endorser (endorser) and broadcasts a transaction proposal (trans-proxy) to the ordering service;
a client (client) represents an entity of an end user that creates transactions and invokes transactions, which can communicate with the node and the ranking service simultaneously. Obviously, to achieve communication, a node communicating with the blockchain must first be connected. In fact, a client is connectable to any node of its choice.
(2) Node (peer): the node submits a transaction, maintains a copy of the state and general ledger (1 edder); in addition, the node also has a special function, namely endorsement;
the node receives ordering status updates from an ordering service, the status updates being stored in blocks, while the node is also used to maintain status and general ledgers.
In addition, the node also has a special function of carrying out endorsement, and the node implementing the function can be called an endorsement node (or an endorser). Functionally, the endorsement node is primarily used to endorse transactions prior to submission of the transaction in response to an endorsement request for a particular chain code. Each chain code may specify an endorsement policy (i.e., endorsement policies may be different and may be specified) that often involve a collection of endorsement nodes. Further, the endorsement policy defines the requirements of legal transaction endorsements (the most typical endorsement policy is to specify some nodes to endorse, form a set of endorsement nodes, complete the signature of a set of endorsement nodes, and combine the signature).
(3) Consensus service node or voter node: a node running a communication service realizes delivery guarantee. For example, atomic broadcasts and full-ordered broadcasts;
step 2, deploying a front processing node of the service system to the service system of the electronic contract service related party;
the business system of the electronic contract business related party is the existing business system of the business related party, the business system of each industry has different functions, and the business system needs to be matched with the same system and operate contract related data, such as a supplier management system, a loan wind control system, a lease management system and the like.
Step 3, deploying a digital asset safe deposit box for storing the biological characteristics, the company certificate, the network credit contract and the public and private keys of the legal person or the authorized agent;
the biological characteristics comprise biological characteristic information of biological identification such as fingerprints, human faces, irises, finger veins and the like;
step 4, modifying and configuring a service system or a network credit service system of a party related to the electronic contract service, and connecting a front processing node of the service system and a digital asset safe deposit box in a restful mode to perform data interaction;
step 5, generating a public and private key by using the digital asset safe deposit box, and storing the public and private key and the biological characteristic information of related personnel into the digital asset safe deposit box after authentication;
step 6, inquiring and signing a contract by a company legal person or an authorized agent through the function of calling the preposed processing node of the service system; encrypting and digitally signing the contract by calling the function of the digital asset safe deposit box through the service system to obtain a binary file of the block chain electronic contract;
step 7, the pre-processing node automatically writes the hash values of the biological characteristic information of the certified justice and contract signer, the hash values of the certificate information of the enterprise subjected to cross verification and the signing timestamp information into a binary file of the block chain electronic contract; meanwhile, the fund and settlement information in the contract are digitized and then written into a binary file of the block chain electronic contract;
the hash value of the biological characteristic information of the certified official and contract signer is started with 0x 000 xFF 0x 000 xFF and stored under the contracting party data item of the binary file of the block chain electronic contract;
the hash value of the cross-verified company license information is started with 0x 000 xFF 0x 000 xFF and stored under the contracting party data item of the binary file of the block chain electronic contract;
the fund and settlement information in the contract are encrypted and then independently stored under the fund data item in the binary file of the block chain electronic contract, and the beginning of the fund and settlement information is 0xFF 0xFF 0x 000 x00, and a query verification interface is provided;
step 8, the block chain node transmits the binary file of the block chain electronic contract to other nodes of the block chain by packaging and using GRPC after asymmetric encryption, wherein the binary file comprises the nodes of other signing parties of the contract and the nodes of a supervision and audit party; the financial information of the network credit business system and the fund information of the contract are automatically cross checked and audited without consensus; other nodes of the blockchain comprise an authentication node, a non-authentication node and a query node;
and 9, when equipment or information of any node in the blockchain network has a problem, automatically acquiring backup information from other nodes, and performing automatic real-time audit and supervision contract information penetration by an internal audit department and external supervision through the blockchain network.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions and scope of the present invention as defined in the appended claims.
Claims (5)
1. An electronic contract associable analysis verification method based on block chains and biological characteristics is characterized in that: the method comprises the following steps:
step 1, deploying complete nodes of a block chain network to electronic contract service related parties, and ensuring network intercommunication;
step 2, deploying a front processing node of the service system to the service system of the electronic contract service related party;
step 3, deploying a digital asset safe deposit box for storing the biological characteristics, the company certificate, the network credit contract and the public and private keys of the legal person or the authorized agent;
step 4, modifying and configuring a service system or a network credit service system of a party related to the electronic contract service, and connecting a front processing node of the service system and a digital asset safe deposit box in a restful mode to perform data interaction;
step 5, generating a public and private key by using the digital asset safe deposit box, and storing the public and private key and the biological characteristic information of related personnel into the digital asset safe deposit box after authentication;
step 6, inquiring and signing a contract by a company legal person or an authorized agent through the function of calling the preposed processing node of the service system; encrypting and digitally signing the contract by calling the function of the digital asset safe deposit box through the service system to obtain a binary file of the block chain electronic contract;
step 7, the pre-processing node automatically writes the hash values of the biological characteristic information of the certified justice and contract signer, the hash values of the certificate information of the enterprise subjected to cross verification and the signing timestamp information into a binary file of the block chain electronic contract; meanwhile, the fund and settlement information in the contract are encrypted and then are independently stored under the fund data item in the binary file of the block chain electronic contract, and the beginning is 0xFF 0xFF 0x 000 x00, and a query verification interface is provided;
step 8, the block chain node transmits the binary file of the block chain electronic contract to other nodes of the block chain by packaging and using GRPC after asymmetric encryption, wherein the binary file comprises the nodes of other signing parties of the contract and the nodes of a supervision and audit party; the financial information of the network credit business system and the fund information of the contract are automatically cross checked and audited without consensus;
and 9, when equipment or information of any node in the blockchain network has a problem, automatically acquiring backup information from other nodes, and performing automatic real-time audit and supervision contract information penetration by an internal audit department and external supervision through the blockchain network.
2. The blockchain and biometric-based electronic contract associable analysis verification method of claim 1, wherein: the service related parties comprise signing parties of the contract, consulting parties of the contract, verification and execution of the contract and auditing all related parties.
3. The blockchain and biometric-based electronic contract associable analysis verification method of claim 1, wherein: the hash value of the biometric information of the certified justice and contract signer is stored under the contracting party data item of the binary file of the block chain electronic contract beginning with 0x 000 xFF 0x 000 xFF.
4. The blockchain and biometric-based electronic contract associable analysis verification method of claim 1, wherein: and the hash value of the certificate information of the enterprise subjected to cross validation starts with 0x 000 xFF 0x 000 xFF and is stored under the contracting party data item of the binary file of the block chain electronic contract.
5. The blockchain and biometric-based electronic contract associable analysis verification method of claim 1, wherein: other nodes of the blockchain include verification nodes, non-verification nodes, and query nodes.
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| CN112465617A (en) * | 2020-12-17 | 2021-03-09 | 欧冶链金再生资源有限公司 | Method for managing authenticity of tax in scrap steel industry |
| CN113626515A (en) * | 2021-08-06 | 2021-11-09 | 戈尔特西斯科技(济南)有限公司 | System solution method for enterprise financial supervision and audit based on block chain supply chain |
| CN113672991A (en) * | 2021-08-11 | 2021-11-19 | 江苏埃洛德数据技术有限公司 | Public electronic contract contracting method based on block chain technology |
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| CN109639651A (en) * | 2018-11-22 | 2019-04-16 | 安云印(天津)大数据科技有限公司 | Contract based on living body authentication and block chain technology signs authentication method and its system online |
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