CN114095253A - Cross-link data access transmission method, system and device adopting multi-channel access - Google Patents
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Abstract
The invention belongs to the technical field of block chain crossing, and provides a method, a system, a storage medium and a device for crossing chain data access transmission by adopting multi-channel access, wherein a plurality of crossing chain channels to be crossed and chained are distributed to a service end through a crossing chain management module, and corresponding channel numbers are generated at the same time; after the contract method is triggered, the cross-chain management module executes cross-chain data access and transmission according to the channel information and the cross-chain interaction information; the service end acquires the cross-chain information export document, executes cross-chain transaction and returns a transaction result to inform a cross-chain management module; the cross-chain management module receives the notification of multiple channels based on an asynchronous mode, is coupled with the service end according to the block chain information, and the service end and the cross-chain channel bidirectionally and asynchronously judge whether the access meets the access condition and feed back the result to notify the cross-chain management module. According to the method, data access or transmission is authorized through interaction of a multi-channel type and a service end, and the configurable multi-channel authority improves the speed of cross-link access and adapts to flexible access and transmission of cross-link data.
Description
Technical Field
The invention belongs to the technical field of block chain cross-linking, and particularly relates to a cross-link data access transmission method, a system and a device adopting multi-channel access.
Background
The block chain network is a relatively closed system, interaction with the outside cannot happen actively, and assets of each chain also exist as an independent value system. The chain-crossing technology is dedicated to building a trust bridge between chains, breaks the situation of one chain and one island, realizes asset interoperation between the chains and aims to realize a win-win situation in a larger range.
In practical application, a blockchain is adopted for chain crossing, various service scenes exist, different channels need to be set up for the various service scenes to connect service ends for trading, the access and transmission of cross-chain data can be technically understood, the access problem of the data is inevitably involved in order to guarantee the safety of data transmission, the existing chain crossing technology is not mature, and the influence of the cross-chain on the access speed and the safety of the existing blockchain system needs to be improved.
Disclosure of Invention
Based on the background and the problems in the prior art, the invention proposes to design a cross-link data access transmission method, a system, a storage medium and a device adopting multi-channel access. The method of the invention controls access authorization access to access in all data transmission processes by realizing interaction between the multi-span chain channel and the service end, ensures safe butt joint of all data access in the span chain transaction process, solves the problems of butt joint safety and speed in the span chain transaction process in the scene, and meets the requirements of quick implementation and development of the span chain service and application in the complex scene.
In a first aspect, a method and a system for cross-link data access transmission using multi-channel access are provided, and the specific implementation steps include:
the method comprises the following steps that a cross-chain management module distributes a plurality of cross-chain channels to be cross-linked for a service end, and generates corresponding channel numbers for the channels, wherein the channel numbers are bound with the numbers of contract methods called by the channels;
channel information and cross-link interaction information for identifying authority identities in the process of accessing or transmitting data are configured in the contract method;
after the contract method is triggered, the cross-chain management module executes cross-chain data access and transmission according to the channel information and the cross-chain interaction information;
the service end acquires the cross-chain information export document, executes cross-chain transaction and returns a transaction result to inform the cross-chain management module;
and the cross-link management module receives a multi-channel notice based on an asynchronous mode, is coupled with the service end according to the block link information, and the service end and the cross-link channel bidirectionally and asynchronously judge whether the access meets the access condition and feed back the result to inform the cross-link management module.
In the solution of the first aspect, the channel is assigned with a cross-link channel number (channel number, serial number) by a cross-link management module according to a cross-link data access type through a cross-link, and a contract method that can be called by a corresponding channel is set, so that a service end and multiple channels are accessed in combination to realize serial access of data in a cross-link workflow.
In the above-mentioned scheme of the first aspect, the contract method corresponds to a channel number, and generates the right access information according to the channel information and provides the right access information to the service side for identification.
In the scheme, the cross-chain management module identifies the channel number and the contract method number of the contract method to select the channel and the contract method, and the channel calls the contract method based on the cross-chain gateway.
In the above scheme, the cross-link gateway implements the invocation of the contract method, numbers data transmitted in different channels, respectively binds different sender route numbers and receiver route numbers, triggers a timestamp timer by a global tracking number provided by or forwarded to cross-link data access, and locks the time of cross-link data access and transmission.
In the scheme of the first aspect, the deriving of the authority identity by the cross-chain management module is provided to the service end, and the specific implementation steps include:
requesting to agree on a message format;
checking whether the distributed channel number and contract method number meet the authority identity access authorization requirement or not by the cross-link;
when the authorization requirement is met, the message signature is checked, and if the message signature passes the verification, the message signature is synchronously returned to the channel and authorizes the channel to access the service end; if not, synchronously rejecting the message and prohibiting access;
the channel authorizes the access service end to execute transaction data transmission, and the service end and the cross-link channel can complete butt joint through the transaction data transmission.
In the above scheme, the contract method is configured to perform cross-link interaction with a multi-party blockchain, and then the contract method is set by callback, so as to combine multi-party cross-link channel and service end data access and transmission, thereby meeting the requirements of setting a complex cross-link transaction scenario and rapidly changing a cross-link transaction model, and the specific implementation steps include:
configuring a cross-link gateway called by the contract method, a block chain intelligent contract, a channel called back after execution and a contract method, and interacting with the cross-link gateway in an asynchronous mode;
after the cross-link gateway calls the block chain, a processing result is sent through a cross-link channel, the cross-link channel is connected with a plurality of cross-link channels in series according to callback information, and whether the cross-link channels and the service end are mutually exclusive is judged according to the callback information; if the cross-link channel callback is empty, the flow execution is finished, and the service end acquires an execution result notice;
based on the configuration and callback processes, the combination of cross-link data access and transmission flow is completed by cross-link routing, cross-link gateways, block chains, other cross-link channels and the service end.
In a second aspect, the present invention further provides a system for accessing cross-link data by multiple channels, which specifically comprises:
and a service end: a cross-chain access or data transmission request is made to a cross-chain management module; acquiring cross-chain information, exporting a document, executing cross-chain transaction and returning a transaction result to inform the cross-chain management module; judging whether the accessed cross-chain channel meets the access condition or not and feeding back a result to notify a cross-chain management module;
a cross-chain management module: distributing a plurality of chain-crossing channels to be subjected to chain crossing for a service end, and generating corresponding channel numbers for the channels; performing cross-link data access and transmission according to the channel information and the cross-link interaction information; receiving a transaction result notice returned by the service end; receiving a service end or cross-link channel feedback result notice;
the contract method comprises the following steps: channel information and cross-link interaction information for identifying authority identities in a data access or transmission process are configured in the contract method; performing cross-link data access or data transmission after triggering;
and (3) chain-crossing channel: for cross-link data transmission; judging whether the accessed service end meets the access condition and feeding back a result to inform the cross-link management module;
across the link is composed of: distributing cross-link channel numbers (channel numbers and serial numbers) and setting a contract method which can be called by a corresponding channel; providing or forwarding a global tracking number for cross-chain data access to trigger a timestamp timer; checking whether the distributed channel number and contract method number meet the authority identity access authorization requirement; after the cross-link gateway calls the block link contract method, a processing result is sent through a cross-link channel, the cross-link channel is connected with a plurality of cross-link channels in series according to callback information, and whether the cross-link channels and the service end are mutually exclusive or not is judged according to the callback information;
and (3) cross-chain gateway: calling a contract method; and performing data access and transmission in an asynchronous mode.
In a third aspect, a computer-readable storage medium is provided, in which a computer program is stored, which, when being executed by a processor, carries out the method steps of any of the above;
in a fourth aspect, there is provided a cross-chain data access apparatus using multi-channel access, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the method steps when executing the computer program.
Compared with the prior art, the invention sets a multi-span chain channel docking mode to interact with a business end system, performs access authorization on all accessed systems through a span chain route and a span chain gateway, configures a contract method corresponding to accessible span chains for each channel, accesses the access channels according to authorized identities, directly forbids access if access conditions are not met, and meets the safe docking of the span chain transaction; the invention sets the one-to-one corresponding relationship of the cross-chain channels, the channel numbers and the contract method numbers, is convenient to identify the authorization condition of the access authority, controls the flexible operation among the cross-chain management module, the service end, the multi-cross-chain channels, the contract method, the cross-chain gateway and the cross-chain route, can flexibly configure the channels, and maximally ensures the safety of the cross-chain transaction on the premise of improving the development speed of the cross-chain transaction.
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FIG. 1 is a flow chart of the present invention for cross-link data access transmission using multi-channel access;
fig. 2 is a diagram of a cross-link data access transmission device using multi-channel access according to the present invention.
Detailed Description
In order to clarify and clarify the technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the drawings in the following embodiments of the present invention, which illustrate one embodiment of the present invention and fall within the technical scope of the present invention through the recombination or simple replacement of the technical solutions of the present invention.
The data interaction process in the present invention can also be regarded as a process of data access and/or transmission.
According to the invention, through realizing the interaction between the multi-span chain channel and the service end, access authorization access control is carried out on access in all data transmission processes, the safe butt joint of the span chain transaction is realized, the safety and the speed in the span chain transaction process are ensured, and the quick implementation and development of the span chain application building of a complex scene are met.
As shown in fig. 1, the cross-link data access transmission flow chart of the present invention using multi-channel access includes the following specific steps:
step 1: the method comprises the following steps that a cross-chain management module distributes a plurality of cross-chain channels to be cross-linked for a service end, and generates corresponding channel numbers for the channels, wherein the channel numbers are bound with the numbers of contract methods called by the channels;
the channel is accessed by the cross-link management module according to the cross-link data access type through cross-link distribution cross-link channel numbers (channel numbers and serial numbers) and setting a contract method which can be called by the corresponding channel, and the service end is combined with multi-channel access to realize the series connection of the cross-link workflow to access data. And the cross-chain management module identifies the channel number and the contract method number of the contract method to select the channel and the contract method, wherein the channel calls the contract method based on the cross-chain gateway. The cross-link gateway calls the contract method, numbers data transmitted in different channels, respectively binds different sender routing numbers and receiver routing numbers, triggers a timestamp timer by a global tracking number for providing or forwarding cross-link data access by the cross-link gateway, and locks the time for accessing and transmitting the cross-link data by the timestamp timer.
The contract method corresponds to a channel number, and authority access information is generated according to channel information and provided for the business terminal to identify.
Step 2: the contract method is internally provided with channel information and cross-chain interaction information for identifying the authority identity in the process of accessing or transmitting data, and the authority identity is derived and provided for a service end through a cross-chain management module, and the method comprises the following specific implementation steps:
s21: requesting to agree on a message format; for example, the following message formats may be agreed:
{
"acsCode": "channel number assigned by the cross-chain management module",
"funcCode": "contract method number assigned by the cross-chain management module",
"txno": "service-side cross-link data access or transmission number",
"reqTm": "request time for cross-chain data access and transfer",
"reqContent": "service message object domain",
"signStr": message signature "
}
S22: checking whether the distributed channel number and contract method number meet the authority identity access authorization requirement or not by the cross-link;
s23: when the authorization requirement is met, the message signature is checked, and if the message signature passes the verification, the message signature is synchronously returned to the channel and authorizes the channel to access the service end; if not, synchronously rejecting the message and prohibiting access;
s24: the channel authorizes the access service end to execute transaction data transmission, and the service end and the cross-link channel can complete butt joint through the transaction data transmission.
Step 3: after the contract method is triggered, the cross-chain management module executes cross-chain data access and transmission according to the channel information and the cross-chain interaction information; the contract method is configured to carry out cross-link interaction with a multi-party block chain, and then the contract method is set back, so that data access and transmission of a multi-party cross-link channel and a service end are combined, the setting of a complex cross-link transaction scene and the rapid change of a cross-link transaction model are met, and the method specifically comprises the following implementation steps:
s31: configuring a cross-link gateway called by the contract method, a block chain intelligent contract, a channel called back after execution and a contract method, and interacting with the cross-link gateway in an asynchronous mode, wherein the request message format adopts a gPRC + protobuf technology;
gRPC: a set of open source high performance rpc (remote Procedure call) frameworks: a set of mechanisms is provided to enable communication between applications.
protobuf (*** Protocol buffers): *** offers a library of protocol data interchange format tools with high efficiency (similar to Json), but Protobuf has higher conversion efficiency than Json, both time and space efficiency being 3-5 times that of Json.
The gPC can define the interface through protobuf, so that stricter interface constraint conditions can be met.
S32: after the cross-link gateway calls the block chain, a processing result is sent through a cross-link channel, the cross-link channel is connected with a plurality of cross-link channels in series according to callback information, and whether the cross-link channels and the service end are mutually exclusive is judged according to the callback information; if the cross-link channel callback is empty, the flow execution is finished, and the service end acquires an execution result notice;
based on the configuration and callback processes, the combination of cross-link data access and transmission flow is completed by cross-link routing, cross-link gateways, block chains, other cross-link channels and the service end.
Step 4: the service end acquires the cross-chain information export document, executes cross-chain transaction and returns a transaction result to inform the cross-chain management module;
step 5: and the cross-chain management module receives a multi-channel notice based on an asynchronous mode, is coupled with the service end according to the block chain information, and the service end and the cross-chain channel bidirectionally and asynchronously judge whether the access meets the access condition and feed back the result to inform the cross-chain management module.
The implementation of the invention also provides a cross-chain data access and transmission system adopting multi-channel access, which specifically comprises the following components:
and a service end: a cross-chain access or data transmission request is sent to a cross-chain management module; acquiring cross-chain information, exporting a document, executing cross-chain transaction and returning a transaction result to inform the cross-chain management module; judging whether the accessed cross-link channel meets the access condition or not and feeding back a result to inform a cross-link management module;
a cross-chain management module: distributing a plurality of chain-crossing channels to be subjected to chain crossing for a service end, and generating corresponding channel numbers for the channels; performing cross-link data access and transmission according to the channel information and the cross-link interaction information; receiving a transaction result notice returned by the service end; receiving a service end or cross-link channel feedback result notice;
the contract method comprises the following steps: channel information and cross-link interaction information for identifying authority identities in a data access or transmission process are configured in the contract method; performing cross-link data access or data transmission after triggering;
and (3) cross-chain channel: for cross-link data transmission; judging whether the accessed service end meets the access condition and feeding back a result to inform the cross-link management module;
across the link is composed of: distributing cross-link channel numbers (channel numbers and serial numbers) and setting a contract method which can be called by a corresponding channel; providing or forwarding a global tracking number for cross-chain data access to trigger a timestamp timer; checking whether the distributed channel number and contract method number meet the authority identity access authorization requirement; after the cross-link gateway calls the block link contract method, a processing result is sent through a cross-link channel, the cross-link channel is connected with a plurality of cross-link channels in series according to callback information, and whether the cross-link channels and the service end are mutually exclusive is judged according to the callback information;
and (3) cross-chain gateway: calling a contract method; and performing data access and transmission in an asynchronous mode.
The number of modules and the processing scale described herein are intended to simplify the description of the invention. Applications, modifications and variations of the present system components/assemblies/elements will be apparent to those skilled in the art.
Based on the same inventive concept, embodiments of the present application further provide a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements any of the method steps described above; for the storage medium embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for the relevant points, refer to the partial description of the method embodiment.
Based on the same inventive concept, the present embodiment provides a cross-link data access and transmission apparatus with multi-channel access, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the method steps described above when executing the computer program. For the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference may be made to the partial description of the method embodiment for relevant points.
The embodiments described above are presented to enable a person having ordinary skill in the art to make and use the invention. It is to be understood that the present invention is not limited to the application of the above-mentioned examples, and it is obvious to those skilled in the art that various modifications can be easily made to the above-mentioned examples, and those skilled in the art should make improvements and modifications to the present invention based on the disclosure of the present invention within the protection scope of the present invention.
Claims (10)
1. A cross-link data access transmission method adopting multi-channel access is characterized by comprising the following concrete implementation steps:
the method comprises the following steps that a cross-chain management module distributes a plurality of cross-chain channels to be cross-linked for a service end, and generates corresponding channel numbers for the channels, wherein the channel numbers are bound with the numbers of contract methods called by the channels;
channel information and cross-link interaction information for identifying authority identities in the process of accessing or transmitting data are configured in the contract method;
after the contract method is triggered, the cross-chain management module executes cross-chain data access and transmission according to the channel information and the cross-chain interaction information;
and the cross-chain management module receives a notice that the service end executes cross-chain transaction and returns a transaction result through multiple channels based on an asynchronous mode, is coupled with the service end according to the block chain information, judges whether the access meets the access condition based on the service end and the cross-chain channel in a bidirectional asynchronous mode, and feeds back the result to notify the cross-chain management module.
2. The method for transmitting across-link data access by multi-channel access according to claim 1, wherein the across-link channel is assigned a across-link channel number by a across-link management module according to a across-link data access type and a contract method that can be called by a corresponding channel is set.
3. The method for transmitting data access across chains by using multi-channel access as claimed in claim 1, wherein the contract method corresponds to a channel number, and generates the authority access information according to the channel information to provide the authority access information for the service end to identify.
4. The method for transmitting across-chain data access with multi-channel access according to any one of claims 1-3, wherein the across-chain management module identifies the channel number and the contract method number of the contract method for channel and contract method selection, and the channel is based on the across-chain gateway for contract method invocation.
5. The method for transmitting cross-chain data access by multi-channel access according to claim 4, wherein the cross-chain gateway implements the calling of the contract method, and the implementing comprises: the method comprises the steps of numbering data transmitted in different channels, respectively binding route numbers of different senders and route numbers of receivers, triggering a timestamp timer by a global tracking number for providing or forwarding cross-link data access through cross-links, and locking the time for the cross-link data access and transmission through the timestamp timer.
6. The method for transmitting across-link data access by using multi-channel access according to claim 1, wherein the across-link management module derives the authority identity and provides the authority identity to a service terminal, and the specific implementation steps include:
requesting to agree on a message format;
checking whether the distributed channel number and contract method number meet the authority identity access authorization requirement or not by the cross-link;
when the authorization requirement is met, the message signature is checked, and if the message signature passes the verification, the message signature is synchronously returned to the channel and authorizes the channel to access the service end; if not, synchronously rejecting the message and prohibiting access;
and the channel authorizes the access service end to execute transaction data transmission.
7. The method for accessing and transmitting data across links by using multiple channels according to claim 6, wherein the contract method is configured to perform cross-link interaction with a multi-party blockchain, and the contract method is used for callback setting to combine data access and transmission of the multi-party cross-link channel and the service end, and the method comprises the following specific implementation steps:
configuring a cross-link gateway called by the contract method, a block chain intelligent contract, a channel called back after execution and a contract method, and performing data access and transmission with the cross-link gateway in an asynchronous mode;
after the cross-link gateway calls the block link contract method, a processing result is sent through a cross-link channel, the cross-link channel is connected with a plurality of cross-link channels in series according to callback information, and whether the cross-link channels and the service end are mutually exclusive is judged according to the callback information; and if the cross-link channel callback is empty, the flow execution is finished, and the service end acquires an execution result notice.
8. A cross-link data access and transmission system adopting multi-channel access is characterized by comprising the following specific components:
and a service end: a cross-chain access or data transmission request is made to a cross-chain management module; acquiring cross-chain information, exporting a document, executing cross-chain transaction and returning a transaction result to inform the cross-chain management module; judging whether the accessed cross-chain channel meets the access condition or not and feeding back a result to notify a cross-chain management module;
a cross-chain management module: distributing a plurality of chain-crossing channels to be subjected to chain crossing for a service end, and generating corresponding channel numbers for the channels; performing cross-link data access and transmission according to the channel information and the cross-link interaction information; receiving a transaction result notice returned by the service end; receiving a service end or cross-link channel feedback result notice;
the contract method comprises the following steps: channel information and cross-link interaction information for identifying authority identities in a data access or transmission process are configured in the contract method; performing cross-link data access or data transmission after triggering;
and (3) chain-crossing channel: for cross-link data transmission; judging whether the accessed service end meets the access condition and feeding back a result to inform the cross-link management module;
across the link is composed of: distributing a cross-chain channel number and setting a contract method which can be called by a corresponding channel; providing or forwarding a global tracking number for cross-chain data access to trigger a timestamp timer; checking whether the distributed channel number and contract method number meet the authority identity access authorization requirement; after the cross-link gateway calls the block link contract method, a processing result is sent through a cross-link channel, the cross-link channel is connected with a plurality of cross-link channels in series according to callback information, and whether the cross-link channels and the service end are mutually exclusive is judged according to the callback information;
and (3) cross-chain gateway: calling a contract method; and performing data access and transmission in an asynchronous mode.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 7.
10. A cross-chain data access and transmission apparatus employing multi-channel access, comprising a memory, a processor and a computer program stored in the memory and running on the processor, wherein the processor when executing the computer program implements the method steps of any of claims 1 to 7.
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| CN113422733A (en) * | 2021-08-25 | 2021-09-21 | 腾讯科技（深圳）有限公司 | Service processing method and device of block chain, computer equipment and storage medium |
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