CN111461917A - Power system material contract management system based on block chain - Google Patents
Power system material contract management system based on block chain Download PDFInfo
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- CN111461917A CN111461917A CN202010086187.7A CN202010086187A CN111461917A CN 111461917 A CN111461917 A CN 111461917A CN 202010086187 A CN202010086187 A CN 202010086187A CN 111461917 A CN111461917 A CN 111461917A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/18—Legal services; Handling legal documents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3263—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
- H04L9/3268—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements using certificate validation, registration, distribution or revocation, e.g. certificate revocation list [CRL]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention provides a block chain-based power system material contract management system, which comprises: the block chain bottom platform is used for database maintenance, account book maintenance and intelligent contract management, ensures that data is not tampered, and provides a registration function and a logout function through CA; the intelligent contract comprises seal management, user information management, signature management and contract management and is used for a called transaction interface; the business layer is used for providing an RESTful interface for Web service, processing a business request, converting the service interfaces of stamp management, signature management and contract management into the RESTful interface, and then accessing the SDK to distribute the RESTful interface; and the application layer comprises functions of user login, user logout, stamp adding, signature adding, contract initiating, contract signing, contract refusing and contract downloading. The invention improves contract signing efficiency and ensures the progress and quality of power grid construction engineering.
Description
Technical Field
The invention belongs to the technical field of block chains, and particularly relates to a block chain-based power system material contract management system.
Background
The electronic contract is a supply agreement and agreement signed between an electric power enterprise and a supplier, equipment required by power grid construction is produced quantitatively according to required scenes and technical indexes, a material purchasing contract is required to be managed in the early stage of a project to formulate a purchasing task, and the type, the quantity, the cost, the technical content and the delivery/inspection mode of purchased materials are determined through contract management, so the supply of the electric power equipment is directly influenced by the signing of the contract, and the progress of the power grid construction project is greatly influenced.
Most of material contracts used in the power industry are paper contracts, and a small number of contracts are signed in the form of electronic contracts provided by an information platform. The traditional paper contract content is borne as a paper entity, a strict approval process is needed, the signing form is divided into on-the-spot signing and scanning member signing or express delivery signing, the on-the-spot signing is high in safety, but the convenience is poor, and the efficiency is low; both parties of the scanned part signature need equipment support; express delivery signing has the problems of long time consumption, extra express delivery cost, possibility of counterfeiting the signature and the like. The content and the signature of the electronic contract are represented as data messages, and the signing channel is more diverse than a paper contract, and is superior to the traditional paper contract in storage cost, working efficiency, safety, environmental protection value and the like.
Electronic contract uses cryptographic algorithm in the signing course of the contract to solve the problem that the security of the traditional paper contract is insufficient in the signing course, but because it adopts the form of electronization to store the contract, there is potential safety hazard in the aspect of data storage, at first, on the storage mode, mostly adopt the centralized server to store concentratedly, the trouble of the storage equipment and attack of the hacker all cause the loss and falsification of the contract data easily; secondly, in the verification mode, the verification mode is not generally adopted or verified by a third party authority, so that the safety is poor and the efficiency is low; finally, in a source tracing mode, the evidence is single and difficult to trace, and once a contract has a problem, persuasiveness is weak.
Disclosure of Invention
The invention aims to provide a block chain-based power system material contract management system, which improves contract signing efficiency and ensures the progress and quality of power grid construction engineering.
The invention provides the following technical scheme:
a block chain based power system material contract management system comprising:
the block chain bottom platform is used for database maintenance, account book maintenance and intelligent contract management, ensures that data is not tampered, and provides a registration function and a logout function through CA;
the intelligent contract comprises seal management, user information management, signature management and contract management and is used for a called transaction interface;
the business layer is used for providing an RESTful interface for Web service, processing a business request, converting the service interfaces of stamp management, signature management and contract management into the RESTful interface, and then accessing the SDK to distribute the RESTful interface;
and the application layer comprises functions of user login, user logout, stamp adding, signature adding, contract initiating, contract signing, contract refusing and contract downloading.
Preferably, the Web application adopts a front-end architecture of ASP, NET, HTM L and CSS to write an application program, and has an interface for interacting with a user, and the user performs business operation on the interface.
Preferably, the user stores the contract on the block chain, the contract is stored on the block chain through the Web server or the access service is provided through the RESTFul API server, the service object is a third-party tenant, the tenant stores the contract on the block chain through the server, the number of nodes is dynamically adjusted by the block chain according to the traffic, the server is simultaneously provided with a sequencing node, a billing node and the like, and the RESTFul API server and the Web server are also provided on the same server.
Preferably, the contract is signed safely by using a digital signature and a digital certificate, a public key and a private key in the digital signature are issued through a local CA, a local CA system is built for verifying certificate application files of an electric power enterprise and a supplier, user information can be issued only through verification, and then the digital certificate is issued to the supplier and the electric power enterprise.
The invention has the beneficial effects that: the invention provides a block chain technology applied to the management of material contracts in the power industry, the security of an electronic contract mainly depends on the company trust endorsement of a third-party electronic contract service provider, and a distributed account book system, namely a block chain, based on a P2P protocol, a consensus mechanism and a digital certificate can realize the signing and management of the electronic contract through an intelligent contract under the condition of not introducing the trust endorsement of a third-party organization, thereby improving the contract signing efficiency and ensuring the progress and quality of power grid construction engineering.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the system architecture of the present invention;
FIG. 2 is the physical architecture of the power contract of the present invention;
fig. 3 is a flow chart of the digital signature and digital certificate of the present invention.
Detailed Description
As shown in fig. 1, a block chain-based power system material contract management system includes:
the block chain bottom platform is mainly responsible for the functions of database maintenance, account book maintenance, intelligent contract management and the like, ensures that data is not tampered, and provides a registration function and a logout function through CA;
the intelligent contract comprises seal management, user information management, signature management and contract management and some called transaction interfaces;
the business layer is mainly responsible for providing RESTful interfaces for Web services and processing business requests, and the business layer has the main functions of converting some service interfaces for stamp management, signature management and contract management into RESTful interfaces and then accessing the SDK to distribute the RESTful interfaces, so that developers can use the system more conveniently;
the Web application writes an application program by using a front-end architecture of ASP.NET + HTM L + CSS, and has an interface interacting with a user, and the user can perform business operation on the interface.
As shown in fig. 2, there are two ways for a user to store a contract on a blockchain, one way is that the contract is stored on the blockchain through a Web server, and the other way is that an access service is provided through a RESTFul API server, the service is targeted to a third party tenant, and the tenant stores the contract on the blockchain through the server. The key to contract storage is that the contract's storage location is on the blockchain. The block chain can dynamically adjust the number of nodes according to the traffic, the server is simultaneously provided with a sequencing node, a billing node and the like, and the RESTFul API server and the web server can also be arranged on one server.
As shown in fig. 3, the invention uses a block chain technique to ensure the security of the contract, and the security of signing the contract is mainly realized by digital signature and digital certificate, which ensures the integrity of the contract, and also can know the source of the contract, and has non-repudiation. The public key and the private key in the digital signature are issued through a local CA, the safety of the public key and the private key can be guaranteed, the local CA system is built, the public key and the private key can be used for verifying certificate application files of power enterprises and suppliers, user information can be issued only through verification, and then the digital certificate is issued to the suppliers and the power enterprises.
The electronic contracting entity may be a person or an organization, referred to as "entity" for short, and may also be referred to as "user" herein. The user can complete the user information on the electronic contract platform, add a contract template, publish the contract and invite other users to download, read and sign the contract, and also can identify whether the contract is a contract acknowledged by the current block chain. According to the business division of the user on the system, the system can be divided into five modules of identity information management, stamp management, signature management, contract template management and contract management.
The identity information management comprises identity information establishment and identity information modification, wherein the user identity information is established when the user is created, and if necessary, the personal information can be supplemented or modified through an identity information modification function. The identity information is used for prompting the contract signing parties to confirm the identity of the other party, and the identity information of the user when the contract takes effect is permanently recorded on the chain based on the chain data structure of the block chain. Users can be divided into individual users and business users, individual users do not need the business data part, and business information generally needs the individual user part as a signing representative.
The seal management comprises seal creation, seal destruction, seal information modification and seal query. A seal is a mark printed on a document that represents an authentication or signing, and on electronic contracts, a digital certificate is used instead of a seal as proof that the contract is in effect and has not been tampered with. The use of pictures to represent real-world stamps is intended to visualize the signing process. The user can transfer the paper contract to the digital contract without learning cost, and the electronic contract can be printed into the paper contract, although the digital certificate is lost as the legal certificate, the electronic contract is not different from the paper contract.
The signature management comprises signature creation, signature destruction, signature information modification and signature inquiry.
The contract template is essentially a formatted HTM L file, reserves a position where data needs to be filled in, marks the position of the data filling through an HTM L tag placeholder, and thus marks the content of the data filling through a Json data structure when the contract is created.
The contract management comprises contract creation, contract signing, contract revocation, contract inquiry and contract signing checking functions:
contract creation: and creating the contract according to the contract template or uploading the custom contract. Other users may be designated as contract signatories at contract creation time.
Contract signing: after the contract is created, the contract-related signing party needs to sign the contract in the validity period of contract signing, which indicates the content of agreement to the contract. When all contract signing parties in the contract sign the contract, the contract takes effect.
Refusing to sign: when the user is the contract recipient. The contract can be denied, which fails.
Contract revocation: the contract initiator can revoke the contract when the contract has not yet been validated, and the contract is invalidated.
Contract inquiry: the user can view all contracts that have been initiated and that he is the recipient of the contract.
The block chain-based contract management system is a contract management application system which is invented based on an open source block chain framework and aims to improve contract management efficiency, improve contract management safety and reduce system implementation and maintenance cost. The contract management system can provide efficient and safe guarantee for contract approval and management of the current bank, and design, development and operation and maintenance experience of successful application of the contract management system can bring great reference significance to application of later-stage project based on block chains.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A block chain-based power system material contract management system, comprising:
the block chain bottom platform is used for database maintenance, account book maintenance and intelligent contract management, ensures that data is not tampered, and provides a registration function and a logout function through CA;
the intelligent contract comprises seal management, user information management, signature management and contract management and is used for a called transaction interface;
the business layer is used for providing an RESTful interface for Web service, processing a business request, converting the service interfaces of stamp management, signature management and contract management into the RESTful interface, and then accessing the SDK to distribute the RESTful interface;
and the application layer comprises functions of user login, user logout, stamp adding, signature adding, contract initiating, contract signing, contract refusing and contract downloading.
2. The system for contract management of materials for electric power system based on block chain as claimed in claim 1, wherein the Web application employs asp.net + HTM L + CSS front end architecture to write application program, and has interface for interacting with user, and the user performs business operation on the interface.
3. The system of claim 1, wherein a user stores a contract on the blockchain, the contract is stored on the blockchain through a Web server or provides access service through a RESTFul API server, the service is targeted to a third-party tenant, the tenant stores the contract on the blockchain through the server, the blockchain dynamically adjusts the number of nodes according to traffic, the server is simultaneously provided with a sequencing node, a billing node and the like, and the RESTFul API server and the Web server are also provided on one server.
4. The system for managing the material contract of the power system based on the blockchain as claimed in claim 1, wherein the contract is signed safely by using a digital signature and a digital certificate, a public key and a private key in the digital signature are issued by a local CA, the local CA system is constructed for verifying certificate application files of power enterprises and suppliers, user information can be issued only by verification, and then the digital certificate is issued to the suppliers and the power enterprises.
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| CN202010086187.7A CN111461917B (en) | 2020-02-11 | 2020-02-11 | Power system material contract management system based on block chain |
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| CN202010086187.7A CN111461917B (en) | 2020-02-11 | 2020-02-11 | Power system material contract management system based on block chain |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111741035A (en) * | 2020-08-28 | 2020-10-02 | 支付宝(杭州)信息技术有限公司 | Electronic contract signing method, device and equipment |
| CN111861285A (en) * | 2020-08-07 | 2020-10-30 | 浙江华电器材检测研究所有限公司 | Power distribution network material quality data high-reliability real-time management and control method and system based on block chain technology |
| CN112163842A (en) * | 2020-11-27 | 2021-01-01 | 华南理工大学 | Intelligent material measuring and recording error prevention system for electric power engineering |
| CN112995167A (en) * | 2021-02-20 | 2021-06-18 | 国网冀北电力有限公司计量中心 | Kafka mechanism-based power utilization information acquisition method, block chain network and user side |
| CN113706261A (en) * | 2021-09-02 | 2021-11-26 | 国网区块链科技(北京)有限公司 | Block chain-based power transaction method, device and system |
| CN113962674A (en) * | 2021-12-22 | 2022-01-21 | 国家电网有限公司客户服务中心 | Block chain-based power transaction contract security system and method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111861285A (en) * | 2020-08-07 | 2020-10-30 | 浙江华电器材检测研究所有限公司 | Power distribution network material quality data high-reliability real-time management and control method and system based on block chain technology |
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| CN112995167A (en) * | 2021-02-20 | 2021-06-18 | 国网冀北电力有限公司计量中心 | Kafka mechanism-based power utilization information acquisition method, block chain network and user side |
| CN112995167B (en) * | 2021-02-20 | 2023-05-26 | 国网冀北电力有限公司计量中心 | Kafka mechanism-based electricity consumption information acquisition method, blockchain network and user terminal |
| CN113706261A (en) * | 2021-09-02 | 2021-11-26 | 国网区块链科技(北京)有限公司 | Block chain-based power transaction method, device and system |
| CN113962674A (en) * | 2021-12-22 | 2022-01-21 | 国家电网有限公司客户服务中心 | Block chain-based power transaction contract security system and method |
| CN113962674B (en) * | 2021-12-22 | 2022-04-01 | 国家电网有限公司客户服务中心 | Block chain-based power transaction contract security system and method |
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| CN111461917B (en) | 2022-06-14 |
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