CN115988056B - Control method of cross-region block chain service - Google Patents
Control method of cross-region block chain service Download PDFInfo
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Abstract
The application provides a method for controlling a cross-region block chain service. The method comprises the following steps: sending a request for establishing the cross-blockchain service to a DID server, wherein the request for establishing carries: and receiving service chain DID of the DID server in response to the establishment request, and calling a relay to establish a corresponding service chain based on the service chain DID. The method solves the problem of insufficient timeliness of authority verification in cross-link communication between different cross-link services in the prior art.
Description
Technical Field
The application relates to a block chain technology, in particular to a control method of a cross-region block chain service.
Background
Blockchain is a technology for connecting value Internet of different service systems and different application scenes. At present, the block chain technology frameworks and service application chains are various, the service chain application construction conditions of different service fields and application scenes are different, and how to open the data island between the block chains is a problem to be solved urgently by the block chain industry.
The cross-chain service platform is capable of providing users with inter-blockchain data interoperation solutions. Different organizations may apply for a cross-chain service registration service chain on a cross-chain service platform that is provided using the platform. And then, selecting a target service chain needing to carry out the cross-chain operation to carry out the cross-chain communication, thereby realizing the value circulation among different application chains.
Although the inter-chain service realizes the data intercommunication among the blockchains of different architectures, the application chain identity is verified in the inter-chain transaction initiation stage by the gateway service in the existing inter-chain service flow, which results in insufficient timeliness and security of verifying the transaction authority in the complete inter-chain service flow.
Disclosure of Invention
The application provides a control method of a cross-area block chain service, which is used for solving the problem of untimely authority verification in cross-chain communication in the prior art.
In a first aspect, the present application provides a method for controlling a cross-zone block chain service, including:
sending a request for establishing the cross-blockchain service to a DID server, wherein the request for establishing carries: service UUID identification of the cross-chain system, DID service information, and traffic chain description information.
And receiving a service chain DID of the DID server in response to the establishment request.
And calling a relay to create a corresponding service chain based on the service chain DID.
In a specific embodiment, before the sending the request for establishing the cross-blockchain service to the DID server, the method further includes:
And receiving a service chain creation request sent by a user by using the service UUID identifier from a cross-chain platform.
In a specific embodiment, after receiving the service chain DID of the DID server in response to the establishment request, the method further includes:
And sending the service chain DID to the cross-chain platform so that a user can inquire the information of the service chain according to the service chain DID.
In one embodiment, the method further comprises:
and receiving a cross-link communication request sent by the user by using the service UUID identifier from a cross-link platform.
Cross-link communications are applied to the target links at the source links of the cross-link system.
In one embodiment, after the source chain of the cross-link system applies for cross-link communication to the target chain, the method further includes:
and calling the service UUID identifier to send the authentication statement VC application generated for the cross-link communication to the DID server.
And receiving the VCID of the VC returned by the DID server, wherein the VCID is generated by the DID server when the target chain accepts the cross-chain communication application.
In a specific embodiment, after receiving the VCID of the verifiable statement VC returned by the DID server, the method further includes:
And if the cross-link communication is disabled, calling the service UUID identifier to send a VC logout request to the DID server.
And receiving a VC logout result of the cross-link communication returned by the DID server.
In a second aspect, a method for controlling a cross-block link service includes:
Receiving an establishment request of a cross-region block chain service sent by a cross-chain system, wherein the establishment request carries: service UUID identification of the cross-chain system, DID service information, and traffic chain description information.
And searching the service chain pointed by the establishment request according to the DID service information and the service chain description information, and generating a service chain DID corresponding to the service chain according to the service UUID identifier.
And sending the service chain DID to the cross-chain system.
In a specific embodiment, before receiving the request for establishing the inter-block chain service sent by the inter-chain system, the method further includes:
And receiving the service DID application message sent by the cross-chain system.
And distributing a service UUID identifier for the cross-chain system, and sending the service UUID identifier to the cross-chain system.
In one embodiment, the method further comprises:
And receiving a validation statement VC application sent by the cross-link system and generated for cross-link communication.
And if the target link of the cross-link communication receives the cross-link communication application, generating a VC for the cross-link communication and sending the VC to the cross-link system.
In a specific embodiment, after the VC is sent to the cross-chain system, the method further includes:
and receiving a VC logout request sent by the cross-chain system.
After the VC is logged off, the VC logging-off result is sent to the cross-link system.
The application provides a control method of a cross-block chain service, which comprises the steps of sending a request for establishing the cross-block chain service to a DID server, wherein the request for establishing carries: service UUID identification of a cross-link system, DID service information and service chain description information; receiving a service chain DID of the DID server in response to the establishment request; and calling a relay to create a corresponding service chain based on the service chain DID. Compared with the existing control method of the cross-block chain service, the method ensures the effectiveness and reliability of the cross-chain communication between different cross-chain services by generating the DID distributed identity for the relay service and the service chain created by the user on the cross-chain platform and by generating the VC and verifying the VC.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic diagram of a cross-block chain communication system architecture according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method for a cross-region block chain service provided by the present application;
fig. 3 is a flowchart of a method for applying for cross-link service DID provided in an embodiment of the present invention;
Fig. 4 is a flowchart of a service chain DID generation method provided in an embodiment of the present invention;
Fig. 5 is a flowchart of a control method of another cross-block chain service according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a cross-chain system device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a DID server device provided by the present application.
Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which are made by a person skilled in the art based on the embodiments of the application in light of the present disclosure, are intended to be within the scope of the application.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or server.
Description of technical terms:
blockchain techniques: blockchain is a novel integrated innovation technology integrating cryptography, peer-to-peer network, consensus mechanism, intelligent contracts and the like. The blockchain technology can be communicated with different service systems and application scenes, and is an infrastructure for valuable Internet construction.
DID: decentralized Identifier, decentralizing an identity system, DID for short. Is a new identity derived and derived from the traditional centralized identity. It is mainly referred to as de-mediation, i.e. ownership, control and management of the own digital identity that an individual or organization has in full possession of, and attributing this part of the rights to the user himself.
The existing cross-chain platform can provide a data interoperation solution between blockchain links for users, and different organizations can apply for registering business chains on the cross-chain service platform by using the cross-chain services provided by the platform. Then, the user can select a target service chain which needs to carry out the cross-chain operation to carry out the cross-chain communication, thereby realizing the value circulation among different application chains. In this mode, interoperability problems can occur between the cross-chain services provided by the different organizations. Based on the above, the technical concept of the application is that DID distributed identities are generated for the relay service and the service chain created by the tenant on the cross-chain platform, and the validity of the cross-chain communication is ensured through the processes of generating VC (Verifiable Claim, verifiable statement) and verifying VC.
The control method of the cross-region block chain service provided by the application can be applied to a block chain communication system. Fig. 1 is a schematic diagram of a cross-block chain communication system architecture according to an embodiment of the present application. As shown in fig. 1, the system includes: a cross-link system, a DID server device, a cross-link system, and a relay link/relay gateway device. In the system, the cross-link system is used for receiving application information sent by a user through a cross-link platform; the cross-chain system device is connected with the DID server device and the relay chain/relay gateway device. The DID server provides DID service for the cross-link system, and the cross-link system can generate service link DID by calling the DID service; the relay link/relay gateway device provides service link generation services for the cross-link system, and the cross-link system device can call the relay link/relay gateway service to create the service link. The system can realize the authority verification in the service DID application, the service chain DID application and the cross-chain communication process shown in fig. 1.
It should be noted that, the embodiments of the present disclosure do not limit devices included in the blockchain communication system, and do not limit a positional relationship between the blockchain communication system devices. For example, in a blockchain communication system architecture, a data storage device may be included that may be external memory with respect to the cross-chain system device or the relay chain/relay gateway device, or may be internal memory integrated into the cross-chain system device or the relay chain/relay gateway device. The cross-chain system equipment can be a PC, namely a computer, or a terminal such as a mobile phone or a notebook computer.
Fig. 2 is a flowchart of a control method for a cross-region block chain service provided by the present application. Referring to fig. 1 and fig. 2, the flow specifically includes:
Step S101: the cross-chain system sends a request for establishing the cross-block chain service to the DID server, wherein the request for establishing carries: service UUID (Universally Unique Identifier, universal unique identification code) identification of the cross-chain system, DID service information, and traffic chain description information.
The service UUID of the cross-chain system is used for identifying an application generation system of the service chain; the DID service information may include information of DID service type, service configuration, etc.; the service chain description information may include information of service chain names, adapters, service descriptions, and the like.
Step S102: the DID server receives a request for establishing the inter-area block chain service sent by the inter-chain system, wherein the request for establishing carries: service UUID identification of the cross-chain system, DID service information, and traffic chain description information.
Step S103: and the DID server searches the service chain pointed by the establishment request according to the DID service information and the service chain description information, and generates the service chain DID corresponding to the service chain according to the service UUID identifier. The DID server sends the service chain DID to the cross-chain system.
After the DID server generates the service chain DID according to the DID service information and the service chain description information, the DID server can provide query service chain information service for the cross-chain platform through a preset interface. The user can analyze the service chain information by calling the DID query service through the cross-chain platform.
Step S104: after the inter-link system receives the service link DID of the DID server in response to the establishment request, the inter-link system calls a relay to establish a corresponding service link based on the service link DID.
After receiving the service chain DID generated by the DID server based on the establishment request, the inter-chain system calls the relay service to create the service chain. Alternatively, the relay of the cross-chain system call may be a relay chain or a relay gateway. After the relay chain or the relay gateway generates the service chain, the service chain information is stored in a gateway service chain database.
The cross-link system can realize the confirmation of the service link identity and the communication state by verifying the service link DID information in the cross-link service.
In the existing cross-link service flow, users can generate interoperability problems between service links registered by the cross-link service provided by different institutions in the cross-link platform. And when the cross-link communication is carried out, the cross-link system cannot verify the state of the cross-link communication in the communication process, so that a user cannot find the failure of the cross-link communication in time, and resource waste is caused. Therefore, the timeliness of authority verification in the cross-link communication can be ensured by adding an independent DID service to verify the cross-link communication state.
In this embodiment, the distributed digital system registers the DID service for the relay service and the cross-link system, so as to conveniently implement identity mutual authentication and cross-link communication between multiple cross-link systems. Compared with the existing inter-area block chain service control method, the inter-area block chain service control method can ensure the effectiveness and reliability of inter-area communication between different inter-area block chain services by generating DID distributed identities for the inter-area block chain service and the service chain created by the user and by generating VC and verifying VC.
In the above method for controlling the inter-area block chain service, the inter-chain system also needs to apply for the inter-chain service DID before the inter-chain system sends the service establishment request to the DID. The inter-chain service DID application process includes the flow shown in fig. 3. Fig. 3 is a flowchart of a method for applying for cross-link service DID provided in an embodiment of the present invention. The method comprises the following steps:
step S201: and the cross-link system sends a service DID application message to the DID server.
Step S202: after receiving the service DID application message sent by the cross-chain system, the DID server distributes a service UUID identifier for the cross-chain system.
And the DID server creates the DID service for the cross-chain system after receiving the service DID application message. And the DID server will assign a service UUID identification for the cross-chain system. The service UUID identification is used for identifying the cross-chain system when the DID server establishes the cross-block chain service.
Step S203: and the DID server sends the generated service UUID identification to the cross-link system.
Step S204: the cross-chain system receives the service UUID identification and stores it in the database.
In the above method for controlling the inter-block chain service, the service chain DID generation process includes a flow shown in fig. 4. Fig. 4 is a flowchart of a service chain DID generation method according to an embodiment of the present invention. The method comprises the following steps:
Step S301: the cross-link system receives a request from the cross-link platform for creation of a business chain sent by a user using a service UUID identification.
A user may send a create or query business chain request to a cross-chain system through a cross-chain platform. For example, a user may apply for creation of a business chain for cross-chain communication through BaaS (Blockchain AS A SERVICE ) platform.
The create business chain request accepted by the cross-chain system comprises a service UUID identification, DID service information and business chain description information of the cross-chain system. Alternatively, the DID service information may include an incoming DID service type, service configuration, and the like. The service chain description information may include an incoming service chain name, an adapter, a service description, and the like.
Step S302: the cross-chain system calls the DID service to generate a business chain DID.
The inter-chain system invokes the DID service and generates a service chain DID from the information contained in the create service chain request. After the service chain DID is generated, the service chain DID is stored in a service chain database through a chain crossing system. Moreover, the cross-link system also comprises a preset interface through which other platforms can query service link information.
Step S303: the inter-chain system calls the relay chain/relay gateway service to create a service chain corresponding to the service chain DID.
Step S304: and the cross-link system sends the service link DID to the cross-link platform so that a user can inquire the information of the service link according to the service link DID.
The user can not only check the DID of the target chain through the cross-chain platform, but also can call the DID query service to analyze the service chain information in the cross-chain platform. For example, the user may obtain information such as a service chain name, a relay chain name, service details, service chain creation time, etc. according to the destination chain DID resolution through the BaaS platform.
In the above method for controlling the inter-block link service, the inter-link communication process in the inter-link system further includes a flow shown in fig. 5. Fig. 5 is a flowchart of a control method for a cross-block chain service according to another embodiment of the present invention. The method comprises the following steps:
Step S401: the cross-link system receives a cross-link communication request sent by a user using a service UUID identifier from a cross-link platform.
The cross-link communication request comprises a service UUID identifier of a cross-link system, a source link DID and target link DID information.
Step S402: and applying the cross-link communication to the target link by the cross-link system according to the received cross-link communication request at the source link of the cross-link system, and establishing the cross-link communication by the cross-link system after the target link agrees.
And after receiving the cross-link communication request, the cross-link system calls the source link to send the cross-link communication request to the target link according to the source link DID and the target link DID information. Indicating that cross-link communication has been established when the target link agrees with the cross-link communication request.
Step S403: the cross-link system call service UUID identification is sent to the DID server to generate a verifiable claim VC application for cross-link communications.
Step S404: after the DID server receives the VC application which is sent by the cross-link system and used for generating the verifiable statement for the cross-link communication, the DID server generates the VCID for the cross-link communication and sends the VCID to the cross-link system.
The VCID is generated by the DID server when the target chain accepts the cross-link communication application.
Step S405: the inter-chain system receives the VCID of the VC returned by the DID server.
And after receiving the cross-link communication VCID sent by the DID server, the cross-link system stores the VCID into a VCID database.
Step S406: inquiring whether the cross-link communication is disabled or not by the cross-link system according to a preset frequency; if not, step S407 is performed. Otherwise, step S410 is performed.
Step S407: the cross-chain system call service UUID identification sends a VC de-registration request to the DID server.
Wherein, the VC logout request sent by the cross-chain system comprises VCID information.
Step S408: the DID server receives VC de-registration requests sent across the chain system. And after the DID server logs off the VC, the VC log-off result is sent to the cross-link system.
Step S409: and the inter-link system receives a VC logout result of inter-link communication returned by the DID server.
When the VC for cross-link communication de-registers, the VCID for cross-link communication fails.
Step S410: the cross-link system queries whether the cross-link communication VCID is valid; if so, step S412 is performed. Otherwise, step S411 is performed.
Step S411: the cross-link system disables cross-link communications corresponding to the VCID.
The cross-link system disables cross-link communications corresponding to the failed VCID. And the cross-link system sends the cross-link communication disabling information to the user through the cross-link platform.
Step S412: and enabling the cross-link communication corresponding to the VCID in the cross-link system, and performing the cross-link communication.
Fig. 6 is a schematic structural diagram of a cross-chain system device according to an embodiment of the present invention, as shown in fig. 6, where the device includes: the device comprises a control module, a receiving module and a calling module. The control module is configured to send an establishment request of a cross-blockchain service to the DID server, where the establishment request carries: service UUID identification of a cross-link system, DID service information and service chain description information; the receiving module is used for receiving a service chain DID of the DID server in response to the establishment request; and the calling module is used for calling the relay to create a corresponding service chain based on the service chain DID.
The cross-chain system device in this embodiment may perform the method embodiments shown in fig. 2 to 5, and its implementation principle and technical effects are similar, and will not be described herein.
Fig. 7 is a schematic structural diagram of a DID server device provided by the present application, as shown in fig. 7, the device 40 includes: a processor 41, a memory 42, and a communication interface 43; wherein the memory 42 is used for storing executable instructions executable by the processor 41; the processor 41 is configured to perform the technical solutions of any of the method embodiments described above via execution of executable instructions.
Alternatively, the memory 42 may be separate or integrated with the processor 41.
Optionally, when the memory 42 is a device separate from the processor 41, the apparatus 40 may further include: and a bus for connecting the devices.
The server is used for executing the technical scheme in any of the method embodiments, and the implementation principle and the technical effect are similar, and are not repeated here.
The embodiment of the application also provides a readable storage medium, on which a computer program is stored, which when executed by a processor implements the technical solution provided by any of the foregoing embodiments.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (7)
1. The method for controlling the cross-zone block chain service is characterized by comprising the following steps:
Sending a request for establishing the cross-blockchain service to a DID server, wherein the request for establishing carries: service UUID identification of a cross-link system, DID service information and service chain description information;
receiving a service chain DID of the DID server in response to the establishment request;
calling a relay to create a corresponding service chain based on the service chain DID;
The method further comprises the steps of:
receiving a cross-link communication request sent by a user by using the service UUID identifier from the cross-link platform;
Applying for cross-link communication from the source link to the target link in the cross-link system;
Invoking the service UUID identifier to send a verifiable statement VC application generated for the cross-link communication to the DID server;
And receiving the VCID of the VC returned by the DID server, wherein the VCID is generated by the DID server when the target chain accepts the cross-chain communication application.
2. The method of claim 1, wherein before sending the request for establishment of the cross-blockchain service to the DID server, further comprising:
And receiving a service chain creation request sent by a user by using the service UUID identifier from a cross-chain platform.
3. The method of claim 1, wherein after receiving the service chain DID of the DID server in response to the setup request, further comprising:
And sending the service chain DID to the cross-chain platform so that a user can inquire the information of the service chain according to the service chain DID.
4. The method of claim 1, wherein after receiving the VCID of the verifiable claim VC returned by the DID server, further comprising:
If the cross-link communication is disabled, the service UUID identifier is called to send a VC logout request to the DID server;
And receiving a VC logout result of the cross-link communication returned by the DID server.
5. The method for controlling the cross-zone block chain service is characterized by comprising the following steps:
Receiving an establishment request of a cross-region block chain service sent by a cross-chain system, wherein the establishment request carries: service UUID identification of a cross-link system, DID service information and service chain description information;
searching a service chain pointed by the establishment request according to the DID service information and the service chain description information, and generating a service chain DID corresponding to the service chain according to the service UUID identifier;
sending the service chain DID to the cross-chain system;
The method further comprises the steps of:
receiving a VC application which is sent by the cross-link system and generates a verifiable statement for cross-link communication;
and if the target link of the cross-link communication receives the cross-link communication application, generating a VCID for the cross-link communication, and sending the VCID to the cross-link system.
6. The method of claim 5, wherein prior to receiving the request for establishment of the inter-block chain service sent by the inter-chain system, further comprising:
receiving a service DID application message sent by the cross-chain system;
and distributing a service UUID identifier for the cross-chain system, and sending the service UUID identifier to the cross-chain system.
7. The method of claim 5, wherein after said transmitting said VCID to said cross-chain system, further comprising:
receiving a VC logout request sent by the cross-chain system;
After the VC is logged off, the VC logging-off result is sent to the cross-link system.
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