CN113824738A - Method and system for node communication management in block chain - Google Patents

Method and system for node communication management in block chain Download PDF

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Publication number
CN113824738A
CN113824738A CN202111389086.8A CN202111389086A CN113824738A CN 113824738 A CN113824738 A CN 113824738A CN 202111389086 A CN202111389086 A CN 202111389086A CN 113824738 A CN113824738 A CN 113824738A
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China
Prior art keywords
node
nodes
chain
modification request
communication protocol
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CN202111389086.8A
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Chinese (zh)
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石宁
许小明
高翔宇
李达
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Nanjing Jinninghui Technology Co ltd
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Nanjing Jinninghui Technology Co ltd
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Priority to CN202111389086.8A priority Critical patent/CN113824738A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/24Negotiation of communication capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32Cryptographic 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
    • H04L9/3247Cryptographic 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/50Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees

Abstract

The application discloses a method and a system for node communication management in a block chain, wherein the method comprises the following steps: selecting any node in the alliance chain to obtain a first node; other nodes in a alliance chain receive a first modification request sent by the first node, wherein the first modification request comprises a modified communication protocol list and a digital signature of the first node; verifying the digital signature of the first node by other nodes in the alliance chain to generate feedback information; the first node receives feedback information sent by other nodes in a alliance chain; and the first node obtains a consensus result according to the feedback information. According to the method and the device, the whole node protocol modification process is uploaded to the block chain data in a transaction mode, the integrity of the whole modification process data is guaranteed, the operation efficiency can be improved, and the integrity and the safety of the whole node transmission information process data can be guaranteed.

Description

Method and system for node communication management in block chain
Technical Field
The present invention relates to the field of block chain technologies, and in particular, to a method and a system for managing node communication in a block chain.
Background
As blockchain technology has evolved, more and more individuals and businesses have also begun to focus on blockchains. The blockchain technology is to utilize a blockchain data structure to verify and store data, utilize a distributed node consensus algorithm to generate and update data, and utilize a cryptographic mode to ensure the safety of data transmission and access. The block chain is essentially a decentralized database and has the characteristics of decentralized, non-falsification, traceability, collective maintenance, public transparency and the like.
The block chain is divided into a public chain, a private chain and a alliance chain, and different application scenes correspond to different attributes. The alliance chain is a cluster formed by a plurality of private chains, a block chain which is managed by a plurality of organizations jointly, each organization or organization manages one or more nodes, and data of the organizations or the organizations only allow different organizations in the system to read, write and send. Each node of the federation chain usually has a corresponding entity organization, and can join or leave the network only after authorization. In a federation chain, nodes are in a peer-to-peer relationship in a network, and information transmission management between the nodes is particularly important, because the speed of information communication seriously affects the efficiency of a blockchain executing transaction through consensus, if communication is interrupted or protocol service is stopped, blockchain service cannot work normally.
The existing technical scheme of the alliance chain is more information interaction according to a certain communication protocol of two parties, and the mode is equivalent to a protocol agreed by the two parties, so that the problems of low communication efficiency, insufficient expansibility and the like are caused. Therefore, how to improve the efficiency of information transmission between nodes through the blockchain technology and form a consensus record on the blockchain in a transaction manner to dynamically complete the management of the communication protocol between nodes is a technical problem to be solved.
Disclosure of Invention
The invention provides a method and a system for managing node communication in a block chain, which aim to solve the problem of low efficiency of information transmission between nodes, and how to form consensus records on the block chain in a transaction mode and dynamically complete the management of communication protocols between the nodes, so that the optimal scheme for realizing the information transmission between the nodes is the technical problem to be solved at present. The invention uploads the whole node protocol modification process to the block chain data in a transaction mode, thereby ensuring the integrity of the data in the whole modification process, improving the operation efficiency and reducing the unavailability of a block chain system.
The invention is realized by the following technical scheme:
in a first aspect, the present application provides a method for managing node communication in a blockchain, where the method includes:
selecting any node in the alliance chain to obtain a first node;
other nodes in a alliance chain receive a first modification request sent by the first node, wherein the first modification request comprises a modified communication protocol list and a digital signature of the first node;
verifying the digital signature of the first node by other nodes in the alliance chain to generate feedback information;
the first node receives feedback information sent by other nodes in a alliance chain;
the first node obtains a consensus result according to the feedback information;
if the consensus result is successful, the first node executes the modified communication protocol list, and simultaneously sends the consensus result to other nodes in the alliance chain, and the other nodes in the alliance chain execute the first modification request according to the consensus result;
and the first node starts the access service of the modified communication protocol list to other nodes or clients in the alliance chain.
Further, the modified communication protocol list includes: protocol name, protocol address, protocol priority, blacklist.
Further, the feedback information includes: either granting the first modification request or denying the first modification request.
Further, the step of obtaining the consensus result by the first node according to the feedback information sent by other nodes in the federation chain includes:
the first node counts the number of nodes which agree to execute the first modification request in feedback information sent by other nodes in a alliance chain;
if the number of the nodes is larger than or equal to a preset threshold value, obtaining a consensus result of successful consensus;
and if the number of the nodes is smaller than a preset threshold value, obtaining a consensus result of consensus failure.
Further, if any one of the modified communication protocol lists is not accessed by other nodes in the alliance chain, the protocol which is not accessed is added into the blacklist to obtain the first blacklist.
Further, if the client accesses the first node, a first communication protocol list is obtained after the first blacklist is removed, and the first node executes the first communication protocol list.
Further, the first communication protocol list is executed according to the protocol address with high priority.
Further, the modified communication protocol list includes: the communication protocol list is increased or decreased.
Further, the first modification request is rejected if the digital signature of the first node is not verified.
In a second aspect, the present application further provides a system for managing node communication in a block chain, including:
the node selection unit is configured to select any one node in the alliance chain to obtain a first node;
an information sending unit, configured to send a first modification request of the first node to other nodes in a federation chain, the first modification request being composed of a modified communication protocol list and a digital signature of the first node;
a first verification unit configured to verify a digital signature of the first node, and generate feedback information;
a receiving feedback unit configured to receive feedback information sent by other nodes in a federation chain by the first node;
an acquisition result unit configured to obtain a consensus result by the first node according to the feedback information;
an execution result unit, configured to, if the consensus result is successful, execute the modified communication protocol list by the first node, and simultaneously send the consensus result to other nodes in a federation chain, where the other nodes in the federation chain execute the first modification request according to the consensus result;
and the starting service unit is configured to start the modified communication protocol list to provide services for accessing other nodes or clients in the alliance chain.
The method comprises the steps that any one node in a alliance chain is selected to obtain a first node; other nodes in a alliance chain receive a first modification request sent by the first node, wherein the first modification request comprises a modified communication protocol list and a digital signature of the first node; verifying the digital signature of the first node by other nodes in the alliance chain to generate feedback information; the first node receives feedback information sent by other nodes in a alliance chain; the first node obtains a consensus result according to the feedback information; if the consensus result is successful, the first node executes the modified communication protocol list, and simultaneously sends the consensus result to other nodes in the alliance chain, and the other nodes in the alliance chain execute the first modification request according to the consensus result; and the first node starts the access service of the modified communication protocol list to other nodes or clients in the alliance chain. The invention uploads the whole node protocol modification process to the block chain data in a transaction mode, thereby ensuring the integrity of the data in the whole modification process, improving the operation efficiency and ensuring the integrity and the safety of the data in the whole node information transmission process.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is an application scenario diagram of a node communication management method in a block chain according to the present application;
fig. 2 is a flowchart of a method for managing node communication in a block chain according to the present application;
fig. 3 is a flowchart illustrating obtaining a consensus result in a method for managing node communication in a block chain according to the present application;
fig. 4 is a block diagram of a communication management system for nodes in a blockchain according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A federation chain is a cluster composed of multiple private chains, a blockchain in which multiple enterprises participate in management, and each organization or enterprise manages one or more nodes whose data only allows different enterprises in the system to read, write, and transmit. In the alliance chain, all nodes are in a peer-to-peer relationship in a network, and information transmission management among the nodes is particularly important, because the speed of information communication seriously affects the efficiency of a block chain for executing transaction through consensus, therefore, the application provides a method for managing node communication in the block chain, which realizes the management of communication protocols among the nodes and improves the efficiency of information transmission among the nodes. The method of the present application is described in detail below:
referring to fig. 1, a scene diagram of an application of a node communication management method in a block chain is provided in the present application;
the method and the device rely on the characteristics of decentralization and non-tampering of the block chain and aim to upload the whole node protocol modification management process to block chain data in a transaction mode. In the embodiment of the application, any one node in a federation chain is taken as an execution subject for explanation, a plurality of nodes in the federation chain are provided, after a first node is determined, information transmission between the nodes is performed through a first modification request sent by the first node, other nodes in the federation chain can receive the first modification request sent by the first node, and after receiving the first modification request, other nodes in the federation chain generate feedback information and send the feedback information to the first node.
Referring to fig. 2, a flowchart of a method for managing node communication in a block chain according to the present invention is shown:
as shown in fig. 2, the method for managing node communication in a block chain according to the present application includes:
s1: selecting any node in the alliance chain to obtain a first node;
in the embodiment of the present application, any one node located in a federation chain may be used as a first node, where the first node refers to a node that is to execute a modification request; for example, if four nodes A/B/C/D are set in the alliance chain, if the node A is required to perform the operation of the modification request, the node A can be used as the first node, and the node B/C/D can be used as other nodes.
S2: other nodes in a alliance chain receive a first modification request sent by the first node, wherein the first modification request comprises a modified communication protocol list and a digital signature of the first node;
in this embodiment of the application, the first modification request includes a digital signature of the first node, which proves that the first modification request is permitted by the first node, and the authenticity of the modification request can be judged by verifying the digital signature, so that the security of the transaction is ensured, and malicious operations of other nodes are effectively prevented. The modified list of communication protocols includes: protocol name, protocol address, protocol priority, whether it is a blacklist; common protocols supported by the blockchain communication layer are: TCP/IP protocol, IPX/SPX protocol, NetBEUI protocol, etc. The communication protocol list is modified by increasing or decreasing protocols, for example, one protocol is added, and other protocols are still reserved to form a brand-new communication protocol list; or all protocols in the communication protocol list are replaced by other protocols to form a brand new communication protocol list. The modified list of communication protocols in this application is modified by simply adding or subtracting protocols.
S3: verifying the digital signature of the first node by other nodes in the alliance chain to generate feedback information;
in this embodiment of the present application, the digital signature of the first node is verified, and after receiving the modification request, other nodes extract the digital signature in the modification request for verification, for example, whether the first node qualifies for the request or not, and only after the digital signature of the first node is verified, the subsequent steps may be executed. If the verification fails, feedback information rejecting the first modification request can be directly generated.
S4: the first node receives feedback information sent by other nodes in a alliance chain;
in this embodiment of the application, the feedback information includes not only information about whether other nodes in the federation chain receive the first modification request, but also reasons for non-acceptance, and the like. The safety and the integrity of the data are guaranteed.
S5: the first node obtains a consensus result according to the feedback information;
in this embodiment, the consensus obtained in step S5 has two kinds of results, that is, success of consensus and failure of consensus, and when the number of nodes in the federation chain that meet the requirement of the consensus rule selects to receive the first modification request, it indicates that the first modification request is successfully consensus and will be executed by all nodes, otherwise indicates that the consensus is not successful, that is, failure of consensus is not executed by all nodes.
Further, the consensus rule may be implemented by setting a preset threshold (the number of nodes meeting the consensus criterion), where the preset threshold may be a specific value, for example, in a federation chain formed by 100 nodes, and the preset threshold of 60 indicates that successful consensus occurs when 60 nodes agree with the first modification request; the preset threshold may also be a percentage, e.g. 70%, i.e. the successful consensus is not reached until 70% of all nodes choose to grant the first modification request. The preset threshold may be broadly defined as indicating the number without specific specification. In the present application, a specific value is taken as an example of the preset threshold.
Referring to fig. 3, a flowchart of obtaining a consensus result in the method for managing node communication in a block chain according to the present application is shown;
as shown in fig. 3, the step S5 of obtaining the consensus result in the method for managing node communication in the blockchain according to the present application is decomposed into:
s51: the first node counts the number of nodes which agree to execute the first modification request in feedback information sent by all other points; whether the first modification request is allowed to be executed or not is selected by other nodes after the first modification request is verified, if yes, the feedback information contains information which allows the first modification request to be executed, and if not, the feedback information contains information which refuses to execute the first modification request.
S52: if the number of the nodes is larger than or equal to a preset threshold value, obtaining a consensus result of successful consensus;
s53: and if the number of the nodes is smaller than a preset threshold value, obtaining a consensus result of consensus failure.
S6: if the consensus result is successful, the first node executes the modified communication protocol list, and simultaneously sends the consensus result to other nodes in the alliance chain, and the other nodes in the alliance chain execute the first modification request according to the consensus result;
the other nodes in the federation chain refer to all nodes sending feedback information, including nodes agreeing to execute the first modification request and refusing to execute the first modification request, and the consensus result sent by the first node is received no matter whether the other nodes in the last federation chain choose to receive or refuse to execute the first modification request.
S7: and the first node starts the access service of the modified communication protocol list to other nodes or clients in the alliance chain.
If the consensus result is that the consensus is successful, the first node starts the access service of the modified communication protocol list to other nodes or clients in the alliance chain, otherwise, the consensus is not successful, and the first node does not start the access service. When other nodes in the alliance chain access any one of the modified communication protocol lists, the protocol which cannot be accessed is added into the blacklist to obtain a first blacklist.
When the client accesses the communication protocol list modified by the first node, the first blacklist comprises a protocol list with a non-accessible protocol or a protocol list with an overtime access, a first communication protocol list is obtained by removing the first blacklist, the first node executes the first communication protocol list and executes the protocol list according to the sequence of the protocol address priority from high to low, and the protocol priority list is updated according to the efficiency of each communication. The whole process does not cause the condition of service stop, improves the efficiency of executing transaction between nodes and reduces the unavailability of a blockchain system.
According to the technical scheme, the application provides a method and a system for node communication management in a block chain, and the method comprises the steps of selecting any one node in a alliance chain to obtain a first node; other nodes in a alliance chain receive a first modification request sent by the first node, wherein the first modification request comprises a modified communication protocol list and a digital signature of the first node; verifying the digital signature of the first node by other nodes in the alliance chain to generate feedback information; the first node receives feedback information sent by other nodes in a alliance chain; the first node obtains a consensus result according to the feedback information; if the consensus result is successful, the first node executes the modified communication protocol list, and simultaneously sends the consensus result to other nodes in the alliance chain, and the other nodes in the alliance chain execute the first modification request according to the consensus result; and the first node starts the access service of the modified communication protocol list to other nodes or clients in the alliance chain. According to the method and the system, communication management among the nodes is realized through a blockchain technology, a consensus record is formed in a transaction mode, management of a communication protocol among the nodes is dynamically completed on the blockchain, an optimal scheme of information transmission among the nodes and a communication protocol adaptation deployment environment are realized, operation efficiency can be improved, and the integrity and the safety of the whole node in the information transmission process data can be guaranteed.
Referring to fig. 4, a block diagram of a communication management system for nodes in a block chain according to the present application is shown;
as can be seen from fig. 4, corresponding to the above method, the present application further provides a system for managing node communication in a blockchain, where the system includes:
the node selection unit 11 is configured to select any one node in the alliance chain to obtain a first node;
an information sending unit 12, wherein the information sending unit 12 is configured to send a first modification request of the first node to other nodes in a federation chain, and the first modification request is composed of a modified communication protocol list and a digital signature of the first node;
a first verifying unit 13, wherein the first judging unit 13 is configured to verify the digital signature of the first node and generate feedback information;
a receiving feedback unit 14, where the receiving feedback unit 14 is configured to receive feedback information sent by other nodes in a federation chain by the first node;
an obtaining result unit 15, where the obtaining result unit 15 is configured to obtain a consensus result by the first node according to the feedback information;
an execution result unit 16, where the execution result unit 16 is configured to, if the consensus result is that the consensus is successful, the first node executes the modified communication protocol list, and simultaneously sends the consensus result to other nodes in the federation chain, where the other nodes in the federation chain execute the first modification request according to the consensus result;
and the starting service unit 17 is configured to start the modified communication protocol list to provide services for accessing other nodes or clients in the alliance chain.
The functions of the system of the present application are described in the above method embodiments, and are not described herein again.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (10)

1. A method for managing communication among nodes in a block chain, the method comprising:
selecting any node in the alliance chain to obtain a first node;
other nodes in a alliance chain receive a first modification request sent by the first node, wherein the first modification request comprises a modified communication protocol list and a digital signature of the first node;
verifying the digital signature of the first node by other nodes in the alliance chain to generate feedback information;
the first node receives feedback information sent by other nodes in a alliance chain;
the first node obtains a consensus result according to the feedback information;
if the consensus result is successful, the first node executes the modified communication protocol list, and simultaneously sends the consensus result to other nodes in the alliance chain, and the other nodes in the alliance chain execute the first modification request according to the consensus result;
and the first node starts the access service of the modified communication protocol list to other nodes or clients in the alliance chain.
2. The method of claim 1, wherein the modified communication protocol list comprises: protocol name, protocol address, protocol priority, blacklist.
3. The method of claim 1, wherein the feedback information comprises: either granting the first modification request or denying the first modification request.
4. The method as claimed in claim 1, wherein the step of the first node obtaining the consensus result according to the feedback information sent by other nodes in the alliance chain comprises:
the first node counts the number of nodes which agree to execute the first modification request in feedback information sent by other nodes in a alliance chain;
if the number of the nodes is larger than or equal to a preset threshold value, obtaining a consensus result of successful consensus;
and if the number of the nodes is smaller than a preset threshold value, obtaining a consensus result of consensus failure.
5. The method of claim 1, wherein if the access of any of the modified communication protocols from the other nodes in the federation chain is not allowed, the protocol that is not allowed is added to the blacklist to obtain the first blacklist.
6. The method of claim 5, wherein if the client accesses the first node, the first node removes the first blacklist to obtain a first communication protocol list, and the first node executes the first communication protocol list.
7. The method of claim 6, wherein the first communication protocol list is executed according to the protocol address with higher priority.
8. The method of claim 1, wherein the modified communication protocol list comprises: the communication protocol list is increased or decreased.
9. The method of claim 1, wherein the first modification request is rejected if the digital signature of the first node fails to verify.
10. A system for managing communication among nodes in a block chain, the system comprising:
the node selection unit is configured to select any one node in the alliance chain to obtain a first node;
an information sending unit, configured to send a first modification request of the first node to other nodes in a federation chain, the first modification request being composed of a modified communication protocol list and a digital signature of the first node;
a first verification unit configured to verify a digital signature of the first node, and generate feedback information;
a receiving feedback unit configured to receive feedback information sent by other nodes in a federation chain by the first node;
an acquisition result unit configured to obtain a consensus result by the first node according to the feedback information;
an execution result unit, configured to, if the consensus result is successful, execute the modified communication protocol list by the first node, and simultaneously send the consensus result to other nodes in a federation chain, where the other nodes in the federation chain execute the first modification request according to the consensus result;
and the starting service unit is configured to start the modified communication protocol list to provide services for accessing other nodes or clients in the alliance chain.
CN202111389086.8A 2021-11-23 2021-11-23 Method and system for node communication management in block chain Pending CN113824738A (en)

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CN113438109A (en) * 2021-06-23 2021-09-24 预言机(重庆)科技有限公司 Block chain protocol upgrading method and system based on network nodes

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