CN111163165A - Voting consensus method based on Fabric alliance chain - Google Patents
Voting consensus method based on Fabric alliance chain Download PDFInfo
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- CN111163165A CN111163165A CN201911385348.6A CN201911385348A CN111163165A CN 111163165 A CN111163165 A CN 111163165A CN 201911385348 A CN201911385348 A CN 201911385348A CN 111163165 A CN111163165 A CN 111163165A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C13/00—Voting apparatus
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/42—Mailbox-related aspects, e.g. synchronisation of mailboxes
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- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0815—Network architectures or network communication protocols for network security for authentication of entities providing single-sign-on or federations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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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
Abstract
The invention discloses a voting consensus method based on a Fabric alliance chain. Setting corresponding node identities and voting weight ratios thereof according to real identities of all parties in a alliance chain, wherein any node in the alliance can issue voting content, send a mail to inform other nodes of completing voting within specified voting time, store results into a database and block chain nodes after the voting is completed, and record the results on each node of the alliance chain through a consensus algorithm and a P2P propagation mode to ensure data security; and the members outside the alliance can join the alliance organization only through the identity authentication of all the members in the alliance, in addition, all the parties can inquire the voting record in the system every time, and the block chain combination code can ensure the authenticity of every transaction.
Description
Technical Field
The invention belongs to the technical field of block chains and the field of data security, and particularly relates to a voting consensus method based on a Fabric alliance chain.
Background
With continuous innovation of the scientific and technological level and rapid development of the internet industry, people have closer and closer relationship with the internet, and the 'network voting' also frequently goes into the living field of people. In the past, people organize the participants at characteristic time and places by using an offline meeting mode, vote is carried out according to a voting rule, and the voting result is counted by accounting of a third-party notary; nowadays, all participants of voting can be connected through the Internet, people can vote on voting contents at any time and any place, the mode not only saves time and energy of the participants, but also can lead more ginseng and selection to select the most approved result of the public through the propagation mode of the Internet. However, in the actual electronic voting process, due to the concealment, the non-real-name and the off-line operability, a large number of participants 'kidnapping' own relatives and friends to vote and even find professional network voting agent companies to swipe the vote, so that the 'network voting' loses the fair and fair meaning of the participants.
Fabric is a very popular and widely known implementation scheme of a blockchain network framework in the market at present, mainly aiming at the direction of a federation chain, and like other blockchain technologies, it is also a distributed data storage book interacted through an intelligent contract, but in Fabric, the intelligent contract is called a chain code, and Fabric is a private and permitted network, and under the condition that the node of the federation chain allows, other nodes outside the federation can join in the federation chain through a member registration service to participate in the business of the federation chain.
Disclosure of Invention
The invention aims to combine the two technologies to form a novel voting consensus method based on the Fabric alliance chain. At present, various users usually use a centralized electronic voting system to achieve consensus on a certain problem, the voting system is usually developed by a third-party organization and deployed on a centralized server, data is stored in a database with low security, so that the voting system is vulnerable to attack, risks of data tampering exist, the identity of the voting user and the authenticity of a transaction cannot be determined, a trust problem exists, once an account password of the user is leaked, a final voting result can be directly influenced, error guidance is generated, and economic loss is caused. For some important league organizations, it is obviously not feasible to use this type of voting system.
The application of the union link technology of the block chain to the electronic voting system can well solve the identity trust problem and the data security problem of the user. The current block chain platform is divided into a permitted alliance chain and an unlicensed alliance chain, the unlicensed alliance chain cannot control the admittance of nodes outside the alliance chain, once a foreign node is unintentionally added into the alliance chain, the foreign node can participate in specific services like node users in other alliances, so that the transaction result is changed, the normal operation of the whole alliance chain is influenced, and economic loss is caused; for the permission alliance chain, the admission of the external nodes can be controlled, the identity trust problem among the network nodes is solved, but the trust problem of the transaction among the nodes still cannot be solved.
In order to solve the problems, the invention adopts the following technical scheme:
a voting consensus method based on a Fabric alliance chain solves the identity trust problem, the transaction trust problem and the data security problem of the traditional voting system by using a Hyperhedger Fabric block chain association chain code. An electronic voting system based on a alliance chain is built in a HyperLegendre Fabric block chain platform, all parties in an alliance organization are used as trusted nodes in the block chain, an alliance chain is built on the basis of the trusted nodes, each node in the alliance chain has a complete transaction book, the difficulty of data tampering is increased, meanwhile, Member Service Providers (MSP) in the Fabric can be used for identity verification of nodes in the alliance and access control of nodes outside the alliance, and the identity trust problem among the nodes is solved. And when a node in a certain alliance initiates a transaction by using a client, after endorsement signatures of other nodes are required to be obtained, the node is updated to the account book of each node through a kafka consensus algorithm, so that the transaction trust problem and the data security problem are solved. Finally, the alliance organization is guaranteed to reach reliable consensus.
The architecture of the implementation system is shown in FIG. 1: firstly, each party of each alliance is used as a block chain node, a Fabric alliance chain is established, and a corresponding Web end voting system is established on the basis of the alliance chain. The system is mainly divided into two major users in the alliance and two major users outside the alliance, and has four functions of login registration, alliance joining, voting consensus and inquiry recording, and the function authorities of the users are different according to different identities of the users, wherein the alliance joining function is specific to the users outside the alliance, the voting consensus and inquiry recording function is mainly used by node users in the alliance, and data are respectively stored at two ends of a block chain and a database through a background server and a chain code according to business requirements.
A voting consensus method based on a Fabric alliance chain comprises the following steps:
step 1: establishing a alliance chain network on a HyperLegendre Fabric platform, binding alliance members in real life to the alliance chain network, writing corresponding configuration files in the Fabric, reserving the number of nodes dynamically added to alliance organization, establishing corresponding channels, and arranging sequencing nodes and sequencing algorithms in the channels;
step 2: establishing a voting system of a Web end to complete the development of foreground pages, establishing a background server by using a Java SSM framework, respectively setting the business logic of members inside and outside the alliance, and writing an interface interacting with a Fabric block chain by using Fabric-Java-SDK;
and step 3: the nodes in the alliance chain call corresponding interfaces through a voting system, and the chain codes of the alliance chain are triggered to finally realize interaction with a block chain account book, so that the alliance chain must design corresponding service chain codes and perform identity binding with the alliance chain nodes to ensure the authenticity of system transaction, and finally the designed chain codes are deployed to each node of the alliance chain;
and 4, step 4: when an organization external member wants to join in a channel of a alliance chain, identity registration is firstly carried out in the system, the system becomes an external alliance node user in the system after the registration is successful, the system logs in the system again, applies for joining in the alliance chain, after corresponding information is submitted, the verification of each member in the alliance chain is waited, and after the members agree with each other, the system can become an alliance chain node to participate in the business of the alliance organization;
and 5: when a member of a alliance needs to achieve consensus on a certain content in the alliance, a system voting consensus function is used for publishing the corresponding content, the member of the alliance in the system is informed to vote within a specified time through a mail, other members log in the system to vote after receiving information, when all nodes complete voting or the voting deadline time is reached, a chain code counts the final voting result, and the result is stored in each node of the alliance chain;
step 6: the members in the organization can also inquire and verify the voting result of each time through the inquiry recording function in the system, and once the voting results stored in the ledger of each node are different, the voting result is considered to be falsified, the consensus content is also invalidated in the alliance, and a new round of voting consensus needs to be carried out again.
Compared with the prior system, the invention has the beneficial effects that:
the invention provides a voting consensus method and a voting consensus system based on a Fabric alliance chain, which utilize the Fabric alliance chain to realize the control of alliance organization, ensure that nodes outside the alliance can be added into the organization only by the consistent agreement of members in the alliance, prevent malicious nodes from being added and damaging the network, solve the identity trust problem between alliance members, combine with the Fabric chain code to realize the business function constraint between alliance chain nodes, ensure the validity of node transaction, store the final result into each node of the alliance chain, greatly increase the cost of data tampering, provide powerful data true guarantee for the subsequent query function, and solve the data security problem of the traditional voting system.
Drawings
Fig. 1 is a diagram of an implementation system architecture.
FIG. 2 is a network transaction diagram of a Fabric node.
Fig. 3 is a schematic diagram of a connection structure of the voting system and the block chain system.
Detailed Description
The present invention is further described with reference to fig. 1-2, which specifically includes the following steps:
step 1.1: each node of the alliance organization builds a corresponding environment of HyperLegendric Fabric, and writes address information of each node in a configuration file to form a Fabric alliance chain;
step 1.2: establishing a corresponding channel, setting corresponding endorsement nodes, sequencing nodes and accounting nodes in the channel, reserving the number of nodes dynamically added into the alliance chain in a configuration file, selecting a sequencing algorithm of a proper network according to actual requirements, and declaring the sequencing algorithm in the configuration file;
step 2.1: building a voting system of a Web end, and completing development of a foreground page by using HTML, CSS and JavaScript;
step 2.2: using Java Spring, Spring MVC and Mybatis frames to build a background server, respectively setting business logics of internal and external members of the alliance at the background, using user registration login as a function which can be used by both the internal and external members, adding the alliance function for being specially used by the external users of the alliance, allowing the users in the alliance to use the voting consensus and inquiry recording function only, and storing data at both ends of a Mysql database and a block chain;
step 2.3: developing a Fabric-Java-SDK which is used as an interactive inlet of a background server and a block chain;
step 3.1: setting a required chain code according to the functional requirements of users in the alliance, wherein the required chain code comprises a voting chain code, a statistical voting result chain code and an inquiry voting result chain code, setting a threshold value for passing a vote in the statistical voting chain code, and binding an account password of each node login system and a node identity address of the alliance chain in each chain code to ensure transaction authenticity;
step 3.2: entering a Fabric cli container, installing and instantiating chain codes by each node by using a corresponding command, and ensuring that the chain codes are deployed in the whole channel network;
step 3.3: each node starts the Fabric network by using a command;
step 4.1: when an organization external member wants to join in a channel of a alliance chain, identity registration is firstly carried out in the system, and the system becomes an alliance external node user in the system after the registration is successful, so that the organization external member can use the system function;
step 4.2: logging in the system, applying for joining in the alliance chain, submitting corresponding information and waiting for auditing of each member in the alliance chain;
step 4.3: all members in the alliance log in the system to check the request information for joining the alliance, after the request information is agreed, the members can become alliance chain nodes, join in a corresponding account book channel and participate in the business of the alliance organization, and if any member in the alliance rejects, the joining of the alliance fails;
step 4.4: after the alliance external node is successfully added, the corresponding chain code needs to be updated, and the Fabric network is restarted after the chain code is updated, so that the system side can operate;
step 5.1: when a certain member of the alliance needs to achieve consensus on a certain content in the alliance, the corresponding content is issued by using a system voting consensus function, only the member in the alliance chain can issue successfully, and the member outside the alliance can prompt that the authority is not enough;
step 5.2: after the successful release, all the alliance members are informed to vote within a specified time by using the mail sending function of the system, and other members log in the system to vote after receiving the information
Step 5.3: when other members vote, the specific transaction flow is as shown in fig. 2, firstly, a system client sends a voting result to an endorsement node, the endorsement node calls a voting chain code to perform signature verification on the node identity, the signature result is sent to other endorsement nodes after the verification is passed, the voting transaction can take effect only after the signatures of all endorsement nodes in the alliance are obtained, the chain code is called to send the node voting result to a voting result counting chain code, the chain code counts the voting results of all nodes when the voting is finished, whether the voting passes or not is judged, finally, the voting result is sent to a sorting node after the signatures of all endorsement nodes are obtained, a sorting node packing transaction generation block is sent to all accounting nodes in the alliance, and the account book information stored in each node is ensured to be consistent;
step 6: the members in the organization can also inquire and verify the voting result of each time through the inquiry recording function in the system, and once the voting results stored in the ledger of each node are different, the voting result is considered to be falsified, the consensus content is also invalidated in the alliance, and a new round of voting consensus needs to be carried out again.
Claims (6)
1. A voting consensus method based on a Fabric alliance chain is characterized in that: the method comprises the following steps:
step 1: establishing a alliance chain network on a HyperLegendre Fabric platform, binding alliance members in real life to the alliance chain network, compiling a corresponding configuration file in the Fabric, reserving the number of nodes dynamically added to alliance organization, establishing a channel, and arranging sequencing nodes and a sequencing algorithm in the channel;
step 2: establishing a voting system of a Web end to complete the development of foreground pages, establishing a background server by using a Java SSM framework, respectively setting the business logic of members inside and outside the alliance, and writing an interface interacting with a Fabric block chain by using Fabric-Java-SDK;
and step 3: the nodes in the alliance chain call corresponding interfaces through a voting system, and the chain codes of the alliance chain are triggered to finally realize interaction with a block chain account book, so that the alliance chain must design corresponding service chain codes and perform identity binding with the alliance chain nodes to ensure the authenticity of system transaction, and finally the designed chain codes are deployed to each node of the alliance chain;
and 4, step 4: when an organization external member wants to join in a channel of a alliance chain, identity registration is firstly carried out in the system, the registration is successfully carried out, the system becomes an external alliance node user in the system, the system logs in the system, applies for joining in the alliance chain, information is submitted, then auditing of all members in the alliance chain is waited, and all the members become alliance chain nodes after consistent agreement and participate in business of the alliance organization;
and 5: when a certain member of the alliance needs to achieve consensus on a certain content in the alliance, the corresponding content is issued by using a system voting consensus function, the member of the alliance in the system is informed to vote within a specified time, other members log in the system to vote after receiving information, when all nodes finish voting or the voting deadline time is reached, the link code counts the final voting result, and the result is stored in each node of the alliance link;
step 6: members in the organization can also inquire and verify the voting result of each time through the inquiry recording function in the system, and when the voting result stored in the account book of each node is different, the voting result is considered to be falsified, the consensus content is also invalidated in the alliance, and a new round of voting consensus needs to be carried out again.
2. The method of claim 1, wherein the method comprises:
step 1.1: each node of the alliance organization builds a corresponding environment of HyperLegendric Fabric, and writes address information of each node in a configuration file to form a Fabric alliance chain;
step 1.2: establishing a channel, setting corresponding endorsement nodes, sequencing nodes and accounting nodes in the channel, reserving the number of nodes dynamically added into the alliance chain in a configuration file, selecting a network sequencing algorithm according to actual requirements, and declaring the nodes in the configuration file.
3. The method of claim 1, wherein the method comprises:
step 2.1: building a voting system of a Web end, and completing development of a foreground page by using HTML, CSS and JavaScript;
step 2.2: using Java Spring, Spring MVC and Mybatis frames to build a background server, respectively setting business logics of internal and external members of the alliance at the background, using user registration login as a function which can be used by both the internal and external members, adding the alliance function for being specially used by the external users of the alliance, allowing the users in the alliance to use the voting consensus and inquiry recording function only, and storing data at both ends of a Mysql database and a block chain;
step 2.3: Fabric-Java-SDK was developed as an entry for background servers to interact with blockchains.
4. The method of claim 1, wherein the method comprises:
step 3.1: setting a required chain code according to the functional requirements of users in the alliance, wherein the required chain code comprises a voting chain code, a statistical voting result chain code and an inquiry voting result chain code, setting a threshold value for passing a vote in the statistical voting chain code, and binding an account password of each node login system and a node identity address of the alliance chain in each chain code to ensure transaction authenticity;
step 3.2: entering a Fabric cli container, installing and instantiating chain codes by each node, and ensuring that the chain codes are deployed in the whole channel network;
step 3.3: each node initiates the Fabric network using the command.
5. The method of claim 1, wherein the method comprises:
step 4.1: when an organization external member wants to join in a channel of a alliance chain, identity registration is firstly carried out in the system, and the system becomes an alliance external node user in the system after the registration is successful, and the system function is used;
step 4.2: logging in the system, applying for joining in the alliance chain, submitting corresponding information and waiting for auditing of each member in the alliance chain;
step 4.3: all members in the alliance log in the system to check the request information for joining the alliance, after the request information is consistent and agreed, the request information becomes an alliance link node, the corresponding account book channel is joined, the corresponding account book channel participates in the business of the alliance organization, and if any member in the alliance rejects, the joining of the alliance fails;
step 4.4: and after the alliance external node is successfully added, the corresponding chain code needs to be updated, and after the chain code is upgraded, the Fabric network is restarted, so that the system runs.
6. The method of claim 1, wherein the method comprises:
step 5.1: when a certain member of the alliance needs to achieve consensus on a certain content in the alliance, the corresponding content is issued by using a system voting consensus function, only the member in the alliance chain can issue successfully, and the member outside the alliance can prompt that the authority is not enough;
step 5.2: after the successful release, all the alliance members are informed to vote within a specified time by using the mail sending function of the system, and other members log in the system to vote after receiving the information
Step 5.3: when other members vote, firstly, the system client sends a voting result to the endorsement node, the endorsement node calls a voting link code to carry out signature verification on the node identity, the signature result is sent to other endorsement nodes after the verification is passed, the voting transaction can only take effect after the signatures of all endorsement nodes in the alliance are obtained, the link code is called to send the node voting result to a voting result counting link code, the link code counts the voting results of all nodes when the voting is finished, whether the voting passes or not is judged, finally, the voting result is sent to a sequencing node after the signatures of all endorsement nodes are obtained, the sequencing node packages a transaction generation block and sends the generated block to all the accounting nodes in the alliance, and the consistency of the account book information stored in each node is ensured.
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