CN117709947A - POS machine settlement authority management method based on blockchain - Google Patents
POS machine settlement authority management method based on blockchain Download PDFInfo
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Abstract
The invention discloses a POS machine settlement authority management method based on a blockchain, which relates to the technical field of authority management, and comprises the steps of establishing a star blockchain network, acquiring bank account information of a user, extracting a plurality of account characteristic information from the bank account information, storing the account characteristic information in a central blocknode, setting a plurality of sub-blocknodes according to the variety number of the account characteristic information, setting different data authorities for each sub-blocknode, storing the sub-blocknodes in the authority blocknode, reading a bank card to acquire transaction information to generate data operation content and corresponding data operation authority, transmitting the data operation authority and the data operation content to the corresponding central blocknode matched with the data authority stored in the authority blocknode, judging whether the data operation content is in compliance according to a matching result, and executing the data operation content according to the judging result; the information leakage condition in the transaction settlement process is effectively reduced.
Description
Technical Field
The invention relates to the technical field of authority management, in particular to a POS machine settlement authority management method based on a blockchain.
Background
Blockchain is a distributed ledger technique that enables decentralised, non-tamperable data storage and transaction verification. The security and reliability of the authority can be ensured by storing the settlement authority information of the POS machine on the blockchain.
The existing POS machine settlement authority management technology generally performs identity authentication by reading information on a card so as to determine whether a user has settlement authority. The method can provide tighter identity verification, but risks of identity card loss and card information leakage exist, and risks of information leakage, tampering and hijacking exist in the data transmission and storage process, so that the security of settlement data is possibly threatened.
Therefore, how to reduce information leakage during transaction settlement while ensuring user information security, and a block chain-based POS machine settlement authority management method is provided.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a POS machine settlement authority management method based on a blockchain.
In order to achieve the above object, the present invention provides the following technical solutions:
the POS machine settlement authority management method based on the blockchain comprises the following steps:
s1, establishing a star block chain network, wherein a central block node and an authority block node are added at the tail of the star block chain network every time a user registers identity information;
s2, the star block chain network acquires corresponding bank account information according to the identity information of the user, extracts a plurality of account feature information from the bank account information, and stores the account feature information in a central block node;
s3, setting a plurality of sub-block nodes for the central block node according to the variety and the number of the account characteristic information, storing the part corresponding to the account characteristic information in the bank account information in each sub-block node, setting different data authorities for each sub-block node, and storing the data authorities in the authority block nodes;
s4, the POS machine reads the bank card to acquire transaction information, generates data operation content and corresponding data operation authority according to the transaction information, and sends the data operation authority and the data operation content to the star-type blockchain network so as to match with corresponding center blocknodes;
s5, inputting the data authority into the authority block node according to the matched central block node, matching the data operation authority with the data authority stored by the authority block node, and judging whether the data operation content is compliant according to a matching result;
and S6, updating data of the sub-block nodes connected with the central block node according to the judging result of the step S5, and sending a transaction completion prompt to the POS machine.
Further, the star block chain network is composed of K central block nodes, and each central block node is provided with a number H 1 、H 2 、……、H i Wherein K, i is a natural number greater than 0;
the central block node is connected with a permission block node and a plurality of sub-block nodes, wherein the permission block node is used for storing access permission of data stored by each sub-block node, and the sub-block node is used for storing all bank account information of a user.
Further, the process for extracting the account feature information includes:
the star blockchain network sends the identity information of the user to the bank network, and then the bank network invokes corresponding bank account information according to the name and the ID card number of the user in the identity information, and sends the bank account information to the star blockchain network, so that N account characteristic information is extracted from the bank account information, wherein N is a natural number greater than 0.
Further, the establishing process of the sub-block node comprises the following steps:
mapping the account feature information into bank account information, extracting mapping positions of the account feature information in the bank account information to be marked as feature data, setting N sub-area nodes for the central block node according to the number of the account feature information, and setting numbers for all the sub-area nodes;
sequentially inputting the characteristic data into each sub-region node, and setting the same number for the account characteristic data corresponding to the characteristic data according to the number of the sub-region node where the characteristic data is located;
setting data authority for each sub-region node, wherein the data authority is divided into data access authority, data modification authority and data docking authority;
the data access authority indicates that the data stored in the subarea block node can be read;
the data modification authority means that the data stored in the sub-block node can be modified;
the data docking authority indicates that the data in the sub-block node and the data in other sub-block nodes can be invoked to be docked;
the star block chain network sets different data authorities for each sub-block node, and generates a corresponding data authority list to store in the authority block node.
Further, the generating process of the data operation content and the corresponding data operation authority includes:
the POS machine reads the bank card to acquire transaction information, generates data operation content and corresponding data operation authority according to the transaction information, and integrally generates a transaction data request;
the data operation content comprises data comparison operation, data adjustment operation, data docking operation and corresponding operation original data, and each data operation content comprises a serial number a 1 、a 2 、……、a n The data operation authority corresponding to each data operation and the corresponding data in the operation original data are marked with the same number, wherein n is a natural number larger than 0;
the operation original data comprises account numbers, account names, transaction amounts and transaction matters of both transaction sides, and is used for calling during data comparison operation, data adjustment operation and data docking operation.
Further, the process of matching the data operation content and the corresponding data operation authority with the central block node comprises the following steps:
transmitting the transaction data request to a star block chain network, further retrieving operation original data in the transaction data request, and matching the operation original data with each central block node through account numbers and account names in the operation original data;
and inputting the data operation content in the transaction data request to the central block node according to the matching result, and sending the data operation authority corresponding to the data operation content to the authority block node connected with the central block node.
Further, the process of judging whether the data operation content is compliant includes:
traversing the operation original data by the central block node through the account feature information, and marking the numbers carried by the account feature information on the operation rights of the data corresponding to the operation contents according to the traversing result;
further, comparing and matching the data operation authority in the transaction data request with the data authority in the authority block node, and judging whether the data operation authority is in compliance or not according to a comparison and matching result;
if the matched data authority is completely consistent with the data operation authority, judging that the data operation authority is compliant, otherwise, judging that the corresponding data operation authority is not compliant, and sending an operation non-compliance prompt to the POS machine.
Further, the process of executing the data manipulation content includes:
the center block node judges the executable data operation content;
data alignment operation for compliance: according to the sub-region node numbers matched with the operation original data, corresponding data are called from the operation original data and input into the corresponding sub-region nodes for comparison;
data adjustment operation for compliance: according to the sub-region node numbers matched with the operation original data, corresponding data are called from the operation original data, and then the data in the corresponding sub-region nodes are updated according to the called data;
for compliant data docking operations: matching a plurality of central block nodes for data butt joint according to the transaction data request, and matching the data in the matched sub-region nodes in the central block nodes according to the data butt joint operation on the sub-region nodes matched with the corresponding data in the operation original data, so as to carry out data butt joint on the data in the matched sub-region nodes in each central block node;
after all data operation contents in the transaction data request are finished, a transaction completion prompt is sent to the POS machine
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, a star-type blockchain network is established, bank account information of a user is acquired, a bank card is read to acquire transaction information to generate data operation content and corresponding data operation rights, the data operation rights and the data operation content are sent to a corresponding central blocknode matched in the star-type blockchain network, the data operation rights and the data rights stored in the rights blocknode are matched, whether the data operation content is qualified or not is judged according to a matching result, and the data operation content is executed according to a judging result.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will briefly explain the drawings that are required to be used in the embodiments, and it is apparent that the drawings in the following description are only some embodiments described in the present invention.
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
As shown in fig. 1, the block chain-based POS machine settlement authority management method according to the embodiment includes the following steps:
s1, establishing a star block chain network, wherein a central block node and an authority block node are added at the tail of the star block chain network every time a user registers identity information;
s2, the star block chain network acquires corresponding bank account information according to the identity information of the user, extracts a plurality of account feature information from the bank account information, and stores the account feature information in a central block node;
s3, setting a plurality of sub-block nodes for the central block node according to the variety and the number of the account characteristic information, storing the part corresponding to the account characteristic information in the bank account information in each sub-block node, setting different data authorities for each sub-block node, and storing the data authorities in the authority block nodes;
s4, the POS machine reads the bank card to acquire transaction information, generates data operation content and corresponding data operation authority according to the transaction information, and sends the data operation authority and the data operation content to the star-type blockchain network so as to match with corresponding center blocknodes;
s5, inputting the data authority into the authority block node according to the matched central block node, matching the data operation authority with the data authority stored by the authority block node, and judging whether the data operation content is compliant according to a matching result;
and S6, updating data of the sub-block nodes connected with the central block node according to the judging result of the step S5, and sending a transaction completion prompt to the POS machine.
It should be further noted that, in the implementation process, the step S1 is implemented by the following process:
establishing a star block chain network, wherein the star block chain network consists of K central block nodes, and each central block node is provided with a number H 1 、H 2 、……、H i Wherein K, i is a natural number greater than 0;
the central block node is connected with a permission block node and a plurality of sub-block nodes, wherein the permission block node is used for storing the access permission of the data stored by each sub-block node, and the sub-block node is used for storing all bank account information of a user;
further, the user registers identity information to the star blockchain network, wherein the identity signal comprises a user name and an identity card number;
and a central block node is added at the tail part of the star-shaped block chain network, a permission block node is arranged to be connected with the central block node, and a number is arranged for the central block node.
It should be further noted that, in the implementation process, the step S2 is implemented by the following process:
the star block chain network sends the identity information of the user to the bank network, and the bank network calls corresponding bank account information according to the name and the ID card number of the user in the identity information and sends the bank account information to the star block chain network;
the bank account information comprises user information, account numbers, account balances, operation licenses and the like;
the star blockchain network extracts N account feature information from the bank account information, wherein the account feature information can be an identity card number, balance, account name and the like, and N is a natural number greater than 0.
It should be further noted that, in the implementation process, the step S3 is implemented by the following process:
mapping the account feature information into bank account information, and extracting the mapping position of the account feature information in the bank account information to be marked as feature data;
setting N sub-area nodes for the central block node according to the number of the account characteristic information, and setting a number h for each sub-area node 1 、h 2 、……、h N ；
Sequentially inputting the characteristic data into each sub-region node, and setting the same number for the account characteristic data corresponding to the characteristic data according to the number of the sub-region node where the characteristic data is located;
further, setting data authority for each sub-region node, wherein the data authority is divided into data access authority, data modification authority and data docking authority;
the data access authority indicates that the data stored in the subarea block node can be read;
the data modification authority means that the data stored in the sub-block node can be modified;
the data docking authority indicates that the data in the sub-block node and the data in other sub-block nodes can be invoked to be docked;
the star block chain network sets different data authorities for each sub-block node, and generates a corresponding data authority list to be stored in the authority block node;
it should be noted that the data authority list includes the numbers of the sub-region nodes and the data authorities carried by the sub-region nodes.
It should be further noted that, in the implementation process, the step S4 is implemented by the following process:
the POS machine reads the bank card to acquire transaction information, wherein the transaction signal comprises account numbers, account names, transaction amounts and transaction matters of both transaction parties;
the POS machine generates data operation content and corresponding data operation authority according to the transaction information, and generates a transaction data request in an integrating way;
the data operation contents comprise data comparison operation, data adjustment operation, data docking operation and corresponding operation original data, and it should be noted that the data operation contents comprise each data operation content provided with a number a 1 、a 2 、……、a n The data operation authority corresponding to each data operation and the corresponding data in the operation original data are marked with the same number, wherein n is a natural number larger than 0;
the operation original data comprises account numbers, account names, transaction amounts and transaction matters of both transaction sides, and is used for executing data comparison operation, data adjustment operation and data docking operation for calling;
further, the transaction data request is sent to a star block chain network, so that operation original data in the transaction data request is fetched, and account numbers and account names in the operation original data are matched with each central block node;
and inputting the data operation content in the transaction data request to the central block node according to the matching result, and sending the data operation authority corresponding to the data operation content to the authority block node connected with the central block node.
It should be further noted that, in the implementation process, the step S5 is implemented by the following processes:
traversing the operation original data by the central block node through the account feature information, and marking the numbers carried by the account feature information on the operation rights of the data corresponding to the operation contents according to the traversing result;
further, comparing and matching the data operation authority in the transaction data request with the data authority in the authority block node, and judging whether the data operation authority is in compliance or not according to a comparison and matching result;
if the matched data authority is completely consistent with the data operation authority, judging that the data operation authority is compliant, otherwise, judging that the corresponding data operation authority is not compliant, and sending an operation non-compliance prompt to the POS machine;
for example, there is a data contrast operation, numbered a, in the transaction data request 7 The corresponding data operation authority has data access authority and data modification authority;
the number h in the operation original data and the center block node corresponding to the data comparison operation 9 And h 23 If the account feature information of (1) is successfully compared and matched, the number h is numbered 9 And h 23 Marking the data operation authority corresponding to the data comparison operation;
the authority block node calls the number bit h 9 And h 23 The data authority of the data management system is compared with the data operation authority, and if the data authority is completely consistent with the data operation authority, the data operation authority compliance is judged;
if the data authority is not completely consistent with the data operation authority, judging that the data operation authority is not compliant, stopping the data operation in the corresponding transaction data request, and sending a transaction data request stopping prompt to the POS machine.
It should be further noted that, in the implementation process, the step S6 is implemented by the following process:
according to the judging result of the step S5, the center block node judges the executable data operation content;
data alignment operation for compliance: according to the sub-region node numbers matched with the operation original data, corresponding data are called from the operation original data and input into the corresponding sub-region nodes for comparison;
data adjustment operation for compliance: according to the sub-region node numbers matched with the operation original data, corresponding data are called from the operation original data, and then the data in the corresponding sub-region nodes are updated according to the called data;
for compliant data docking operations: matching a plurality of central block nodes for data butt joint according to the transaction data request, and matching the data in the matched sub-region nodes in the central block nodes according to the data butt joint operation on the sub-region nodes matched with the corresponding data in the operation original data, so as to carry out data butt joint on the data in the matched sub-region nodes in each central block node;
and after all data operation contents in the transaction data request are completed, sending a transaction completion prompt to the POS machine.
The above embodiments are only for illustrating the technical method of the present invention and not for limiting the same, and it should be understood by those skilled in the art that the technical method of the present invention may be modified or substituted without departing from the spirit and scope of the technical method of the present invention.
Claims (8)
1. The POS machine settlement authority management method based on the blockchain is characterized by comprising the following steps of:
s1, establishing a star block chain network, wherein a central block node and an authority block node are added at the tail of the star block chain network every time a user registers identity information;
s2, the star block chain network acquires corresponding bank account information according to the identity information of the user, extracts a plurality of account feature information from the bank account information, and stores the account feature information in a central block node;
s3, setting a plurality of sub-block nodes for the central block node according to the variety and the number of the account characteristic information, storing the part corresponding to the account characteristic information in the bank account information in each sub-block node, setting different data authorities for each sub-block node, and storing the data authorities in the authority block nodes;
s4, the POS machine reads the bank card to acquire transaction information, generates data operation content and corresponding data operation authority according to the transaction information, and sends the data operation authority and the data operation content to the star-type blockchain network so as to match with corresponding center blocknodes;
s5, inputting the data authority into the authority block node according to the matched central block node, matching the data operation authority with the data authority stored by the authority block node, and judging whether the data operation content is compliant according to a matching result;
and S6, updating data of the sub-block nodes connected with the central block node according to the judging result of the step S5, and sending a transaction completion prompt to the POS machine.
2. The blockchain-based POS machine settlement authority management method as in claim 1, wherein the star blockchain network is composed of K central blocknodes, and each central blocknode is provided with a number H 1 、H 2 、……、H i Wherein K, i is a natural number greater than 0;
the central block node is connected with a permission block node and a plurality of sub-block nodes, wherein the permission block node is used for storing access permission of data stored by each sub-block node, and the sub-block node is used for storing all bank account information of a user.
3. The blockchain-based POS machine settlement authority management method of claim 2, wherein the process of extracting the account feature information comprises:
the star blockchain network sends the identity information of the user to the bank network, and then the bank network invokes corresponding bank account information according to the name and the ID card number of the user in the identity information, and sends the bank account information to the star blockchain network, so that N account characteristic information is extracted from the bank account information, wherein N is a natural number greater than 0.
4. The blockchain-based POS machine settlement authority management method as in claim 3, wherein the establishing process of the sub-blocknodes comprises:
mapping the account feature information into bank account information, extracting mapping positions of the account feature information in the bank account information to be marked as feature data, setting N sub-area nodes for the central block node according to the number of the account feature information, and setting numbers for all the sub-area nodes;
sequentially inputting the characteristic data into each sub-region node, and setting the same number for the account characteristic data corresponding to the characteristic data according to the number of the sub-region node where the characteristic data is located;
setting data authority for each sub-region node, wherein the data authority is divided into data access authority, data modification authority and data docking authority;
the data access authority indicates that the data stored in the subarea block node can be read;
the data modification authority means that the data stored in the sub-block node can be modified;
the data docking authority indicates that the data in the sub-block node and the data in other sub-block nodes can be invoked to be docked;
the star block chain network sets different data authorities for each sub-block node, and generates a corresponding data authority list to store in the authority block node.
5. The blockchain-based POS machine settlement right management method of claim 4, wherein the generating process of the data operation content and the corresponding data operation right comprises:
the POS machine reads the bank card to acquire transaction information, generates data operation content and corresponding data operation authority according to the transaction information, and integrally generates a transaction data request;
the data operation content comprises data comparison operation, data adjustment operation, data docking operation and corresponding operation original data, and each data operation content comprises a serial number a 1 、a 2 、……、a n The data operation authority corresponding to each data operation and the corresponding data in the operation original data are marked with the same number, wherein n is a natural number larger than 0;
the operation original data comprises account numbers, account names, transaction amounts and transaction matters of both transaction sides, and are used as data used when the data comparison operation, the data adjustment operation and the data docking operation are executed.
6. The blockchain-based POS machine settlement right management method of claim 5, wherein the process of matching the data operation contents and the corresponding data operation rights with the central blocknode comprises:
transmitting the transaction data request to a star block chain network, further retrieving operation original data in the transaction data request, and matching the operation original data with each central block node through account numbers and account names in the operation original data;
and inputting the data operation content in the transaction data request to the central block node according to the matching result, and sending the data operation authority corresponding to the data operation content to the authority block node connected with the central block node.
7. The blockchain-based POS machine settlement authority management method of claim 6, wherein the process of judging whether the data operation content is compliant comprises:
traversing the operation original data by the central block node through the account feature information, and marking the numbers carried by the account feature information on the operation rights of the data corresponding to the operation contents according to the traversing result;
further, comparing and matching the data operation authority in the transaction data request with the data authority in the authority block node, and judging whether the data operation authority is in compliance or not according to a comparison and matching result;
if the matched data authority is completely consistent with the data operation authority, judging that the data operation authority is compliant, otherwise, judging that the corresponding data operation authority is not compliant, and sending an operation non-compliance prompt to the POS machine.
8. The blockchain-based POS machine settlement authority management method of claim 7, wherein the process of executing the data manipulation content comprises:
the center block node judges the data operation content to be executed;
data alignment operation for compliance: according to the sub-region node numbers matched with the operation original data, corresponding data are called from the operation original data and input into the corresponding sub-region nodes for comparison;
data adjustment operation for compliance: according to the sub-region node numbers matched with the operation original data, corresponding data are called from the operation original data, and then the data in the corresponding sub-region nodes are updated according to the called data;
for compliant data docking operations: matching a plurality of central block nodes for data butt joint according to the transaction data request, and matching the data in the matched sub-region nodes in the central block nodes according to the data butt joint operation on the sub-region nodes matched with the corresponding data in the operation original data, so as to carry out data butt joint on the data in the matched sub-region nodes in each central block node;
and after all data operation contents in the transaction data request are completed, sending a transaction completion prompt to the POS machine.
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| WO2021179743A1 (en) * | 2020-03-09 | 2021-09-16 | 支付宝(杭州)信息技术有限公司 | Method and apparatus for querying account privacy information in blockchain |
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