CN113556234A - Block chain cross-chain communication method and system - Google Patents
Block chain cross-chain communication method and system Download PDFInfo
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- CN113556234A CN113556234A CN202110825758.9A CN202110825758A CN113556234A CN 113556234 A CN113556234 A CN 113556234A CN 202110825758 A CN202110825758 A CN 202110825758A CN 113556234 A CN113556234 A CN 113556234A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012795 verification Methods 0.000 claims abstract description 40
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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
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
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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
- H04L9/3265—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 chains, trees or paths; Hierarchical trust model
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Abstract
The invention provides a block chain cross-chain communication method and a system, wherein the method comprises the following steps: acquiring communication requirements of each node in a plurality of block chains; establishing a cross-link alliance according to the communication requirement, and configuring a digital certificate for each node; a relay chain receives a cross-chain communication request sent by a source node in a certain block chain; the relay chain carries out endorsement policy verification according to the data certificate, records a communication request to a cross-chain intelligent contract after the verification is passed, and sends the cross-chain communication request which passes the endorsement policy verification to a cross-chain alliance; and analyzing the communication data message by the cross-link alliance to obtain transaction data, calling an inquiry interface of the alliance link to inquire whether a transaction corresponding to the transaction data exists or not, verifying the validity of the transaction data, and executing a cross-link communication request after the validity of the transaction data is verified to realize the communication between the nodes. The invention can realize the alliance chain cross-link communication and solves the cross-link communication of complex business and multi-party complex rules.
Description
Technical Field
The present invention relates to the field of block chain technologies, and in particular, to a block chain cross-chain communication method and system.
Background
The blockchain technology has the characteristics of decentralization, data security, non-tampering and traceability, and is widely applied in various fields, such as digital currency, payment settlement, product traceability and identity authentication. In order to meet the requirements of various application scenarios, information interaction is required between blockchains. However, the block chains established in each field are all independent and closed, and it is difficult to directly perform information interaction between the block chains, and a block chain cross-chain technology for realizing communication between the block chains arises.
The chain crossing is a complex process, which requires separate verification capability for nodes in the chain, decentralized input and acquisition and verification of information of the world outside the chain. The main chain-crossing technologies at present are: notary mechanisms, side chains/relays, hash locks, etc. The cross-chain technologies are generally used for circulation of cross-chain assets, are simple in form, can only serve simple business scenes, cannot realize cross-chain communication of complex businesses, and are difficult to meet the requirement of information interaction between block chains.
Disclosure of Invention
The invention aims to provide a block chain cross-link communication method and a block chain cross-link communication system, which are simple, convenient, safe and reliable, can realize alliance chain cross-link communication, solve the cross-link communication of complex business and multi-party complex rules, and improve the resource sharing efficiency on different block chains.
In order to achieve the purpose, the invention provides the following scheme:
a block chain cross-chain communication method comprises the following steps:
s1, interconnecting a plurality of independent block chains in a network to acquire the communication requirements of each node in the plurality of block chains;
s2, establishing a cross-link alliance for each node belonging to the communication requirement on different block chains according to the communication requirement, and configuring a digital certificate for each node;
s3, a relay chain receives a cross-chain communication request sent by a source node in a certain block chain, wherein the cross-chain communication request comprises a data certificate and a communication data message;
s4, the relay chain carries out endorsement policy verification according to the data certificate, records the communication request to a cross-chain intelligent contract after the verification is passed, and sends the cross-chain communication request which passes the endorsement policy verification to a cross-chain alliance;
and S5, analyzing the communication data message by the cross-link alliance to obtain transaction data, calling an inquiry interface of the alliance chain to inquire whether the transaction corresponding to the transaction data exists, verifying the validity of the transaction data, and executing the cross-link communication request after the validity of the transaction data is verified to realize the communication between the nodes.
Further, in step S1, the communication requirement includes communication protocol information, usage information, service information, and party information.
Further, in step S2, in step S2, the digital certificate includes an identity certificate and a transaction certificate.
Further, in step S4, the verifying the endorsement policy by the relay chain according to the data certificate specifically includes:
the relay link generates a communication suggestion result according to the identity certificate and the communication data message, and sends the communication suggestion result to an endorsement verification node;
the source node generates an actual execution result according to the communication data message and the transaction certificate, and sends the actual execution result to the endorsement verification node;
and the endorsement verification node carries out endorsement strategy verification on the actual execution result of the source node according to the communication suggestion result.
Further, step S4 is preceded by: and the plurality of block chains initiate cross-chain registration to the relay chain, the registration information comprises chain information and a chain certificate, the relay chain checks whether the registration information is complete, and a cross-chain intelligent contract is generated according to the registration information.
The invention also provides a block chain cross-chain communication system, which is applied to the block chain cross-chain communication method and comprises the following steps:
a communication demand acquisition unit, configured to acquire communication demands of each node in a plurality of block chains;
a cross-link alliance establishing unit, configured to establish a cross-link alliance for each node belonging to the communication requirement on different block chains according to the communication requirement, and configure a digital certificate for each node;
the system comprises a relay link receiving module, a relay link sending module and a relay link sending module, wherein the relay link receiving module is used for receiving a cross-link communication request sent by a source node in a certain block link, and the cross-link communication request comprises a data certificate and a communication data message;
the relay chain verification module is used for carrying out endorsement policy verification according to the data certificate, recording a communication request to a cross-chain intelligent contract after the verification is passed, and sending the cross-chain communication request which passes the endorsement policy verification to a cross-chain alliance;
and the cross-link alliance unit is used for analyzing the communication data message to obtain transaction data, calling an inquiry interface of an alliance chain to inquire whether a transaction corresponding to the transaction data exists or not, verifying the validity of the transaction data, and executing a cross-link communication request to realize communication between nodes after the validity of the transaction data is verified.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: according to the block chain cross-link communication method and system provided by the invention, a plurality of block chains are networked, a cross-link alliance can be constructed based on communication requirements, a digital certificate is configured for each node, the relay chain can verify the digital certificate, and after the verification is passed, an intelligent contract is recorded, so that the relay chain can store communication data and send the communication datagram to the alliance chain needing to communicate; the nodes realize information communication according to the identity certificate, the transaction certificate and the node intelligent contract, so that the communication reliability is improved, the cross-link communication of complex business and multi-party complex rules is realized, and the sharing of data resources on different block chains is realized.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a flowchart illustrating a block chain cross-chain communication method according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.
The invention aims to provide a block chain cross-link communication method and a block chain cross-link communication system, which are simple, convenient, safe and reliable, can realize alliance chain cross-link communication, solve the cross-link communication of complex business and multi-party complex rules, and improve the resource sharing efficiency on different block chains.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a schematic flow chart of a block chain cross-chain communication method according to an embodiment of the present invention, and as shown in fig. 1, the block chain cross-chain communication method according to the embodiment of the present invention includes the following steps:
s1, interconnecting a plurality of independent block chains through a network, and acquiring communication requirements of each node in the plurality of block chains, wherein the communication requirements comprise communication protocol information, use information, service information and participant information;
s2, establishing a cross-link alliance for each node belonging to the communication requirement on different block chains according to the communication requirement, and configuring a digital certificate for each node, wherein the digital certificate comprises an identity certificate and a transaction certificate;
s3, a relay chain receives a cross-chain communication request sent by a source node in a certain block chain, wherein the cross-chain communication request comprises a data certificate and a communication data message;
s4, the relay chain carries out endorsement policy verification according to the data certificate, records the communication request to a cross-chain intelligent contract after the verification is passed, and sends the cross-chain communication request which passes the endorsement policy verification to a cross-chain alliance;
and S5, analyzing the communication data message by the cross-link alliance to obtain transaction data, calling an inquiry interface of the alliance chain to inquire whether the transaction corresponding to the transaction data exists, verifying the validity of the transaction data, and executing the cross-link communication request after the validity of the transaction data is verified to realize the communication between the nodes.
In step S4, the relay chain performs endorsement policy validation according to the data certificate, and specifically includes:
the relay link generates a communication suggestion result according to the identity certificate and the communication data message, and sends the communication suggestion result to an endorsement verification node;
the source node generates an actual execution result according to the communication data message and the transaction certificate, and sends the actual execution result to the endorsement verification node;
and the endorsement verification node carries out endorsement strategy verification on the actual execution result of the source node according to the communication suggestion result.
The step S4 is preceded by: and the plurality of block chains initiate cross-chain registration to the relay chain, the registration information comprises chain information and a chain certificate, the relay chain checks whether the registration information is complete, and a cross-chain intelligent contract is generated according to the registration information.
In addition, the relay chain can perform cross-chain communication with the pre-registered federation chain, and the registered federation chain has the digital certificate sent by the relay chain, and the digital certificate is used for proving the identity of the federation chain.
The invention also provides a block chain cross-chain communication system, which is applied to the block chain cross-chain communication method and comprises the following steps:
a communication demand acquisition unit, configured to acquire communication demands of each node in a plurality of block chains;
a cross-link alliance establishing unit, configured to establish a cross-link alliance for each node belonging to the communication requirement on different block chains according to the communication requirement, and configure a digital certificate for each node;
the system comprises a relay link receiving module, a relay link sending module and a relay link sending module, wherein the relay link receiving module is used for receiving a cross-link communication request sent by a source node in a certain block link, and the cross-link communication request comprises a data certificate and a communication data message;
the relay chain verification module is used for carrying out endorsement policy verification according to the data certificate, recording a communication request to a cross-chain intelligent contract after the verification is passed, and sending the cross-chain communication request which passes the endorsement policy verification to a cross-chain alliance;
and the cross-link alliance unit is used for analyzing the communication data message to obtain transaction data, calling an inquiry interface of an alliance chain to inquire whether a transaction corresponding to the transaction data exists or not, verifying the validity of the transaction data, and executing a cross-link communication request to realize communication between nodes after the validity of the transaction data is verified.
According to the block chain cross-link communication method and system provided by the invention, a plurality of block chains are networked, a cross-link alliance can be constructed based on communication requirements, a digital certificate is configured for each node, the relay chain can verify the digital certificate, and after the verification is passed, an intelligent contract is recorded, so that the relay chain can store communication data and send the communication datagram to the alliance chain needing to communicate; the nodes realize information communication according to the identity certificate, the transaction certificate and the node intelligent contract, so that the communication reliability is improved, the cross-link communication of complex business and multi-party complex rules is realized, and the sharing of data resources on different block chains is realized.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. A block chain cross-chain communication method is characterized by comprising the following steps:
s1, interconnecting a plurality of independent block chains in a network to acquire the communication requirements of each node in the plurality of block chains;
s2, establishing a cross-link alliance for each node belonging to the communication requirement on different block chains according to the communication requirement, and configuring a digital certificate for each node;
s3, a relay chain receives a cross-chain communication request sent by a source node in a certain block chain, wherein the cross-chain communication request comprises a data certificate and a communication data message;
s4, the relay chain carries out endorsement policy verification according to the data certificate, records the communication request to a cross-chain intelligent contract after the verification is passed, and sends the cross-chain communication request which passes the endorsement policy verification to a cross-chain alliance;
and S5, analyzing the communication data message by the cross-link alliance to obtain transaction data, calling an inquiry interface of the alliance chain to inquire whether the transaction corresponding to the transaction data exists, verifying the validity of the transaction data, and executing the cross-link communication request after the validity of the transaction data is verified to realize the communication between the nodes.
2. The blockchain inter-chain communication method according to claim 1, wherein in step S1, the communication requirement includes communication protocol information, usage information, service information, and party information.
3. The blockchain inter-chain communication method according to claim 1, wherein in the step S2, the digital certificate includes an identity certificate and a transaction certificate in the step S2.
4. The blockchain inter-chain communication method according to claim 2, wherein in step S4, the relay chain performs endorsement policy validation according to the data certificate, specifically comprising:
the relay link generates a communication suggestion result according to the identity certificate and the communication data message, and sends the communication suggestion result to an endorsement verification node;
the source node generates an actual execution result according to the communication data message and the transaction certificate, and sends the actual execution result to the endorsement verification node;
and the endorsement verification node carries out endorsement strategy verification on the actual execution result of the source node according to the communication suggestion result.
5. The blockchain inter-chain communication method according to claim 1, wherein the step S4 is preceded by: and the plurality of block chains initiate cross-chain registration to the relay chain, the registration information comprises chain information and a chain certificate, the relay chain checks whether the registration information is complete, and a cross-chain intelligent contract is generated according to the registration information.
6. A blockchain inter-chain communication system applied to the blockchain inter-chain communication method of any one of claims 1 to 5, comprising:
a communication demand acquisition unit, configured to acquire communication demands of each node in a plurality of block chains;
a cross-link alliance establishing unit, configured to establish a cross-link alliance for each node belonging to the communication requirement on different block chains according to the communication requirement, and configure a digital certificate for each node;
the system comprises a relay link receiving module, a relay link sending module and a relay link sending module, wherein the relay link receiving module is used for receiving a cross-link communication request sent by a source node in a certain block link, and the cross-link communication request comprises a data certificate and a communication data message;
the relay chain verification module is used for carrying out endorsement policy verification according to the data certificate, recording a communication request to a cross-chain intelligent contract after the verification is passed, and sending the cross-chain communication request which passes the endorsement policy verification to a cross-chain alliance;
and the cross-link alliance unit is used for analyzing the communication data message to obtain transaction data, calling an inquiry interface of an alliance chain to inquire whether a transaction corresponding to the transaction data exists or not, verifying the validity of the transaction data, and executing a cross-link communication request to realize communication between nodes after the validity of the transaction data is verified.
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