CN114844896B - Resource sharing method and system based on block chain - Google Patents
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Abstract
The invention discloses a resource sharing method and system based on a block chain, and relates to the technical field of block chains. The method comprises the following steps: the user node B 'under the block chain representative node B requests the resource sharing of the user node A' under the block chain representative node A, and the representative node A receives the resource sharing request sent by the representative node B; the representative node A acquires a plurality of associated nodes associated with the user node A ', and transmits attribute data of the user node B ' to the associated nodes and the user node A '; receiving returned node trust; and calculating according to the node trust degree returned by each associated node to obtain the final trust degree, if the final trust degree is higher than the set value, allowing access, and if the final trust degree is lower than the set value, refusing access. By adopting the technical scheme, the accuracy and the safety of node resource sharing in the block chain can be improved.
Description
Technical Field
The present invention relates to the field of blockchain technologies, and in particular, to a blockchain-based resource sharing method and system.
Background
The blockchain is a reliable database for collective maintenance of decentralization and distrust, is essentially a shared database, and the data or information stored in the database has the characteristics of non-falsifiability, whole trace, traceability, openness, collective maintenance and the like. Based on the characteristics, the blockchain technology lays a solid trust foundation, creates a reliable cooperation mechanism and has wide application prospect.
The prior blockchain resource sharing basically does not perform security processing on nodes belonging to the same private chain or alliance chain, directly allows the nodes in the private chain or alliance chain to perform data sharing, the nodes not belonging to the same private chain or alliance chain send a resource sharing request to the nodes receiving the request, and the receiving node determines whether to allow the resource sharing or not, so that a large number of node access operations can occur, the operation efficiency is lower, and the security processing of the receiving node can limit the resource sharing of some security nodes, so that the data sharing is forced to be terminated.
Disclosure of Invention
The invention provides a resource sharing method based on a block chain, which comprises the following steps:
the user node B 'under the block chain representing node B requests the resource sharing of the user node A' under the block chain representing node A, and the block chain representing node A receives the resource sharing request sent by the block chain representing node B;
the block chain representative node A acquires a plurality of associated nodes associated with the user node A ', acquires attribute data of the user node B' from the resource sharing request, and sends the acquired attribute data of the user node B 'to the associated nodes and the user node A';
each associated node and the user node A' calculate the received attribute data to obtain node trust, and the node trust of each user node is returned to the block chain representative node A;
and the block chain representative node A calculates the final trust according to the node trust returned by each associated node, if the final trust is higher than the set value, the user node B 'is allowed to access, and if the final trust is lower than the set value, the user node B' is refused to access.
A blockchain-based resource sharing method as described above, wherein the blockchain includes a plurality of blocks, wherein each block has a representative node, and a user registers a decentralized identity at the representative node when joining the blockchain, and becomes a trusted user node under the representative node.
In the resource sharing method based on the blockchain, other user nodes associated with each user node are stored in the blockchain representing node, the association relation is set when the user nodes are registered, the association relation is ordered, a plurality of association nodes are selected from top to bottom, and attribute data of the user node B 'of the blockchain representing node B is sent to the association nodes and the user node A'.
The block chain-based resource sharing method comprises the steps of calculating node trust degree of each associated node to the user node B 'according to the attribute data of the user node B' and the attribute data of each associated node, wherein the attribute data comprises a service class and a service core value.
The resource sharing method based on the blockchain is characterized in that the final trust degree is calculated according to the node trust degree of each associated node to the user node B' and the associated value of the associated node.
The invention also provides a resource sharing system based on the blockchain, which comprises a plurality of blocks, wherein each block is provided with a representative node, and when a user node B 'under the blockchain representative node B needs to request the resource sharing of a user node A' under the blockchain representative node A, the blockchain representative node A specifically comprises:
a request receiving module, configured to receive a resource sharing request sent by a blockchain representative node B; the node trust degree is also used for receiving the node trust degree returned by each associated node and the user node A';
the data distribution module is used for acquiring a plurality of associated nodes associated with the user node A ', acquiring attribute data of the user node B' from the resource sharing request, and transmitting the acquired attribute data of the user node B 'to the associated nodes and the user node A';
and the auditing module is used for calculating and obtaining the final trust degree according to the node trust degree returned by each blockchain associated node, allowing the user node B 'to access if the final trust degree is higher than the set value, and rejecting the user node B' to access if the final trust degree is lower than the set value.
A blockchain-based resource sharing system as described above wherein a user registers a de-centralized identity at a representative node upon joining the blockchain as a trusted user node under the representative node.
In the above-mentioned resource sharing system based on the blockchain, other user nodes associated with each user node are stored in the blockchain representative node, the association relation is set when the user node is registered, the association relation is ordered, a plurality of association nodes are selected from top to bottom, and the attribute data of the user node B 'of the blockchain representative node B is sent to the association nodes and the user node A'.
The above-mentioned resource sharing system based on blockchain, wherein the associated node and the user node a ' calculate the node trust, specifically calculate the node trust of each associated node to the user node B ' according to the attribute data of the user node B ' and the attribute data of each associated node, where the attribute data includes a service class and a service core value.
The block chain-based resource sharing system is characterized in that the auditing module is specifically used for calculating the final trust degree according to the node trust degree of each associated node to the user node B' and the associated value of the associated node.
The beneficial effects achieved by the invention are as follows: by adopting the technical scheme, the representative node with higher security level in the block chain is used for processing the resource sharing among the blocks, and the representative node adopts a multi-node decision mechanism to decide whether the resource sharing condition is met or not according to a plurality of user nodes under the representative node, so that the security of node data sharing in the block chain is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a flowchart of a method for resource sharing based on blockchain according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a resource sharing system based on blockchain according to a second embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1, a first embodiment of the present invention provides a resource sharing method based on a blockchain, including:
the blockchain includes a plurality of blocks, including, for example, a block a, a block B and a block C, wherein each block has a representative node, that is, the representative node of the block a is A1, the representative node of the block B is B1, the representative node of the block C is C1, a user registers DID (de-centralized identity) at the representative node when joining the blockchain, becomes a trusted user node under the representative node, for example, the user nodes A2, A3 register under the representative node A1, becomes a blockchain node of the block a, the user nodes B2, B3, B4 register under the representative node B1, and the block link points user nodes C2, C3, C4, C54 register under the representative node C1, become a blockchain node of the block C.
When a subordinate user node of the block a wants to request the resource sharing of a subordinate user node in the block B, for example, a subordinate user node A2 of the block a wants to request the resource sharing of a subordinate user node B3 of the block chain B, a request for carrying the resource sharing is sent to the block chain representative node B by the block chain representative node A1 of the block a.
specifically, other user nodes associated with each user node are stored in the blockchain representing node, the association relation is set when the user nodes are registered, the association relation is ordered according to the association relation, a plurality of association nodes are selected from top to bottom (the number of the selected nodes can be preset, for example, five user nodes with higher association relation with the user node B ' are selected), and attribute data of the user node B ' of the blockchain representing node B are sent to the association nodes and the user node A '.
specifically, the node trust degree of each associated node to the user node B 'is calculated according to the attribute data of the user node B' and the attribute data of each associated node, and a formula is specifically adopted
Calculating node trust, wherein XR i Representing the node trust degree of the ith block chain association node under the block chain representative node A to the user node B'; />
Representing the total number of service categories of the ith block chain associated node under the block chain representing node A, belonging to the service category of the user node B'; psi phi type i Representing the total number of service categories of the ith block chain associated node under the block chain representing node A, which are not the service categories of the user node B'; i is 1 to N, N is the total number of the associated nodes; GH (GH) i Representing the traffic core value of the ith blockchain associated node of blockchain representing node a, KH represents the traffic core value of user node B', the traffic core value being a predetermined value at the time of registration of the user node at the representing node.
Step 140, the blockchain representative node a calculates a final trust level according to the received node trust level, if the final trust level is higher than a set value, the user node B 'is allowed to access, and if the final trust level is lower than the set value, the user node B' is refused to access;
in particular, a male is adoptedA kind of electronic device with high-pressure air-conditioning system
Calculating the final trust level, wherein S is the final trust level calculated by the blockchain representing node A, mu i Impact weight of trust calculated for each blockchain user node on final trust calculation, XR i Node trust degree GL for ith associated node i For the degree of association of the ith association node with other associated points,
and (3) taking the ratio of the association degree of the ith association node to the association degree of all the association nodes as the value of i as 1 to N, wherein N is the total number of the association nodes.
When each block requests resource sharing to nodes of other blocks, the representative node of the block sends a resource sharing request to the representative node of another block, the requested representative node can send the resource sharing request to the corresponding user node, the requested representative node also needs to send the resource sharing request to the user node with higher association relation with the requested user node, the other associated nodes are requested to verify the requested node, and the representative node gathers the verification results of the associated nodes and the requested node, so that whether the resource sharing of the block initiating the request can be comprehensively determined, the resource safety of the requested node can be prevented from being guaranteed, and the security of other user nodes under the block can be prevented from being influenced after the requested user node is privately allowed to be accessed.
Example two
As shown in fig. 2, a second embodiment of the present invention provides a blockchain-based resource sharing system 2, including a plurality of blocks, wherein each block has a representative node, a user registers a decentralized identity at the representative node when joining a blockchain to become a trusted user node under the representative node, and when a user node B 'under the blockchain representative node B wants to request resource sharing of a user node a' under the blockchain representative node a, the blockchain representative node a specifically includes:
a request receiving module 21, configured to receive a resource sharing request sent by a blockchain representative node B; the node trust degree is also used for receiving the node trust degree returned by each associated node;
the data distribution module 22 is configured to obtain a plurality of associated nodes associated with the user node a ', obtain attribute data of the user node B' from the resource sharing request, and send the obtained attribute data of the user node B 'to the associated nodes and the user node a';
specifically, other user nodes associated with each user node are stored in the blockchain representing node, the association relation is set when the user nodes are registered, the association relation is ordered according to the association relation, a plurality of association nodes are selected from top to bottom (the number of the selected nodes can be preset, for example, five user nodes with higher association relation with the user node B ' are selected), and attribute data of the user node B ' of the blockchain representing node B are sent to the association nodes and the user node A '.
And the auditing module 23 is configured to calculate a final trust level according to the node trust level of each associated node for the user node B ' and the associated value of the associated node, allow the user node B ' to access if the final trust level is higher than the set value, and reject the user node B ' to access if the final trust level is lower than the set value.
Specifically, the formula is adopted
Calculating the final trust level, wherein S is the final trust level calculated by the blockchain representing node A, mu i Impact weight of trust calculated for each blockchain user node on final trust calculation, XR i Node trust degree GL for ith associated node i For the degree of association of the ith association node with other associated points,
and (3) taking the ratio of the association degree of the ith association node to the association degree of all the association nodes as the value of i as 1 to N, wherein N is the total number of the association nodes.
The node trust degree of the associated node is calculated, specifically, the node trust degree of each associated node to the user node B 'is calculated according to the attribute data of the user node B' and the attribute data of each associated node, wherein the attribute data comprises a service class and a service core value.
Specifically, the node trust degree of each associated node to the user node B 'is calculated according to the attribute data of the user node B' and the attribute data of each associated node, and a formula is specifically adopted
Calculating node trust, wherein XR i Representing the node trust degree of the ith block chain association node under the block chain representative node A to the user node B'; />
Representing the total number of service categories of the ith block chain associated node under the block chain representing node A, belonging to the service category of the user node B'; psi phi type i Representing the total number of service categories of the ith block chain associated node under the block chain representing node A, which are not the service categories of the user node B'; i is 1 to N, N is the total number of the associated nodes; GH (GH) i Representing the traffic core value of the ith blockchain associated node of blockchain representing node a, KH represents the traffic core value of user node B', the traffic core value being a predetermined value at the time of registration of the user node at the representing node.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present invention in further detail, and are not to be construed as limiting the scope of the invention, but are merely intended to cover any modifications, equivalents, improvements, etc. based on the teachings of the invention.
Claims (6)
1. A blockchain-based resource sharing method, comprising:
the user node B 'under the block chain representing node B requests the resource sharing of the user node A' under the block chain representing node A, and the block chain representing node A receives the resource sharing request sent by the block chain representing node B;
the block chain representative node A acquires a plurality of associated nodes associated with the user node A ', acquires attribute data of the user node B' from the resource sharing request, and sends the acquired attribute data of the user node B 'to the associated nodes and the user node A';
calculating the received attribute data by each associated node and the user node A' to obtain node trust, and returning the node trust of each user node and each associated node to the block chain representative node A;
the block chain representative node A calculates to obtain final trust according to the returned node trust, if the final trust is higher than a set value, the user node B 'is allowed to access, and if the final trust is lower than the set value, the user node B' is refused to access;
according to the attribute data of the user node B 'and the attribute data of each associated node, the node trust degree of each associated node to the user node B' is calculated, and a formula is specifically adopted
Calculating node trust, wherein XR i Representing the node trust degree of the ith block chain association node under the block chain representative node A to the user node B'; />
Representing the total number of service categories of the ith block chain associated node under the block chain representing node A, belonging to the service category of the user node B'; psi phi type i Representing the total number of service categories of the ith block chain associated node under the block chain representing node A, which are not the service categories of the user node B'; i is 1 to N, N is the total number of the associated nodes; GH (GH) i Representing a service core value of an ith blockchain associated node of the blockchain representing node A, wherein KH represents a service core value of the user node B', and the service core value is a preset value when the user node is registered at the representing node;
using the formula
Calculating the final trust level, wherein S is the final trust level calculated by the blockchain representing node A, mu i Impact weight of trust calculated for each blockchain user node on final trust calculation, XR i Node trust degree GL for ith associated node i For the degree of association of the ith association node with other association points, +.>
And (3) taking the ratio of the association degree of the ith association node to the association degree of all the association nodes as the value of i as 1 to N, wherein N is the total number of the association nodes.
2. The blockchain-based resource sharing method of claim 1, wherein the blockchain includes a plurality of blocks, wherein each block has a representative node, and the user registers a decentralized identity at the representative node when joining the blockchain as a trusted user node under the representative node.
3. The method for sharing resources based on blockchain as recited in claim 1, wherein other user nodes associated with each user node are stored in the blockchain representing node, the association is set when the user node registers, the association is ordered according to the association, a plurality of association nodes are selected from top to bottom, and the attribute data of the user node B 'of the blockchain representing node B is sent to the association nodes and the user node a'.
4. A blockchain-based resource sharing system, comprising a plurality of blocks, wherein each block has a representative node, and when a user node B 'under a blockchain representative node B wants to request resource sharing of a user node a' under a blockchain representative node a, the blockchain representative node a specifically comprises:
a request receiving module, configured to receive a resource sharing request sent by a blockchain representative node B; the node trust degree is also used for receiving the node trust degree returned by each associated node and the user node A';
the data distribution module is used for acquiring a plurality of associated nodes associated with the user node A ', acquiring attribute data of the user node B' from the resource sharing request, and transmitting the acquired attribute data of the user node B 'to the associated nodes and the user node A';
the auditing module is used for calculating and obtaining the final trust degree according to the node trust degree returned by each block chain association node, if the final trust degree is higher than a set value, allowing the user node B 'to access, and if the final trust degree is lower than the set value, rejecting the user node B' to access;
according to the attribute data of the user node B 'and the attribute data of each associated node, the node trust degree of each associated node to the user node B' is calculated, and a formula is specifically adopted
Calculating node trust, wherein XR i Representing the node trust degree of the ith block chain association node under the block chain representative node A to the user node B'; />
Representing the total number of service categories of the ith block chain associated node under the block chain representing node A, belonging to the service category of the user node B'; psi phi type i Representing the total number of service categories of the ith block chain associated node under the block chain representing node A, which are not the service categories of the user node B'; i is 1 to N, N is the total number of the associated nodes; GH (GH) i Representing a service core value of an ith blockchain associated node of the blockchain representing node A, wherein KH represents a service core value of the user node B', and the service core value is a preset value when the user node is registered at the representing node;
using the formula
Calculating the final trust degree, wherein S is the block chain representative node ACalculated final confidence, μ i Impact weight of trust calculated for each blockchain user node on final trust calculation, XR i Node trust degree GL for ith associated node i For the degree of association of the ith association node with other association points, +.>
And (3) taking the ratio of the association degree of the ith association node to the association degree of all the association nodes as the value of i as 1 to N, wherein N is the total number of the association nodes.
5. The blockchain-based resource sharing system of claim 4, wherein the user registers a de-centralized identity at the delegate node when joining the blockchain as a trusted user node under the delegate node.
6. The system for sharing resources based on blockchain as recited in claim 4, wherein other user nodes associated with each user node are stored in the blockchain representing node, the association is set when the user node registers, the association is ordered, a plurality of association nodes are selected from top to bottom, and the attribute data of the user node B 'of the blockchain representing node B is sent to the association nodes and the user node a'.
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| CN114124428A (en) * | 2021-07-21 | 2022-03-01 | 远光软件股份有限公司 | Access method and device of Internet of things equipment based on block chain |
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Effective date of registration: 20231226 Address after: Building 801, Building 4, Baoxing Zhihui City, No. 650 Zhoushi Road, Zhongwu Community, Hangcheng Street, Bao'an District, Shenzhen City, Guangdong Province, 518100 Patentee after: Shenzhen Jiaye Co Creation Supply Chain Management Co.,Ltd. Address before: 518100 Room 802, building 4, Baoxing Zhihui City, No. 650, Zhoushi Road, Zhongwu community, Hangcheng street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Shenzhen JIAYE Industry Development Co.,Ltd. |
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