CN114119231A - Data transaction method and system based on block chain - Google Patents

Data transaction method and system based on block chain Download PDF

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CN114119231A
CN114119231A CN202111419384.7A CN202111419384A CN114119231A CN 114119231 A CN114119231 A CN 114119231A CN 202111419384 A CN202111419384 A CN 202111419384A CN 114119231 A CN114119231 A CN 114119231A
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commodity
data
user
block chain
transaction
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李源
单震
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Chaozhou Zhuoshu Big Data Industry Development Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/04Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/27Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/62Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/64Protecting data integrity, e.g. using checksums, certificates or signatures
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00Commerce
    • G06Q30/06Buying, selling or leasing transactions
    • G06Q30/0601Electronic shopping [e-shopping]

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Abstract

The invention provides a data transaction method and a data transaction system based on a block chain, which belong to the technical field of safe transaction. After the commodity is successfully checked, the system encrypts the transaction data by an algorithm to generate a key pair, and writes the commodity key pair into the block chain, so that the commodity on the shelf of the user can not be used and spread by multiple transactions. The data commodity is served externally in the form of api, after the user successfully purchases the commodity, the user can obtain the api address of the current commodity and has the api calling authority of the current data commodity, and the api calling and the viewing of related data can be carried out by using the apiKey given by the platform.

Description

Data transaction method and system based on block chain
Technical Field
The invention relates to the technical field of safe transaction, in particular to a data transaction method and system based on a block chain.
Background
In recent years, new-generation technologies such as mobile internet, big data technology, artificial intelligence, cloud computing, block chain, internet of things, and the like have been developed vigorously, and the human society is gradually changed from the IT era to the dt (data technology) era. Data has become popular and used as a record of the digital world with the development of computers, the internet and intelligent devices. Because a large amount of data can be widely applied to the fields of energy, science and technology, finance, medical treatment, insurance and the like through analysis and mining, people pay more and more attention to the value of the data, the demand for data transaction is continuously increased, meanwhile, the problems of unclear data transaction standard, unsmooth circulation and uneven data quality are also generated in the process of big data transaction, and the strategic values of constructing a data transaction system, researching a data security protection system and constructing a big data transaction platform are more prominent and important under the big background.
Disclosure of Invention
In order to solve the technical problems, the invention provides a data transaction platform method based on a block chain.
The technical scheme of the invention is as follows:
a data transaction method based on a block chain,
Included
1) the information of the main commodity is recorded into 2) the right of the commodity is confirmed 3) the commodity is audited and encrypted and put on the shelf;
in the process of commodity right confirmation, a related right confirmation algorithm is used for confirming the right of the data commodity, and after the commodity right confirmation is successful, main right confirmation parameters and right confirmation information of the commodity are written into a block chain to calibrate a person to which the current commodity belongs; after the commodity is successfully checked, the system encrypts the transaction data by an algorithm to generate a key pair, and writes the commodity key pair into the block chain; the data commodity is served externally in the form of api, after the user successfully purchases the commodity, the user can obtain the api address of the current commodity and has the api calling authority of the current data commodity, and the api calling and the viewing of related data can be carried out by using the apiKey given by the platform.
Further, in the above-mentioned case,
after a user purchases commodities, the system carries out chain link storage on the steps and the results of the transaction process of the commodities, information safety records of the whole process are guaranteed by using the characteristics of the block chain distributed accounts, and the whole transaction process can be traced back, traced and cannot be tampered, so that the whole transaction system is safer and more stable.
Further, in the above-mentioned case,
after the user purchases the data commodity, the system provides external services in the form of api times, based on the decentralized structural design of the block chain, the block chain adopts a decentralized mode, and the equipment is maintained by each network node.
In a still further aspect of the present invention,
comprises the following steps
Step 1): and splitting the whole service, splitting the service with the highest concurrent high-call frequency, and splitting the service with the highest security.
Step two: the method comprises the steps that services with low concurrency and low calling frequency are centrally deployed, meanwhile, a central node has a request distribution function, namely a user access request is sent and then is judged through the central node, and the central node can forward the request to a block link point closest to a user for service;
step 3): and building the distributed blockchain system node, and building by deploying at cdn node or deploying at cdn node.
The invention also discloses a data transaction system based on the block chain, and the whole architecture is divided into five hierarchical structures of an application layer, a service layer, an expansion layer, a network layer and a storage layer;
wherein the storage layer is responsible for storing public information, such as membership information, public data indexes, and transaction records, on the public blockchain;
the network layer is responsible for point-to-point communication among the members through a P2P network;
the expansion layer is responsible for providing various safety guarantee mechanisms and guaranteeing the safe and stable operation of the whole system;
the service layer provides support for each application and ensures the normal use of the application;
the application layer provides functions of inquiry, transaction and complaint for the user;
the method comprises the steps that a related right confirming algorithm is utilized to confirm the right of a data commodity, and after the right confirmation of the commodity is successful, main right confirming parameters and right confirming information of the commodity are written into a block chain to mark a person to which the current commodity belongs; after the commodity is successfully checked, the system encrypts the transaction data by an algorithm to generate a key pair, and writes the commodity key pair into the block chain; the data commodity is served externally in the form of api, after the user successfully purchases the commodity, the user can obtain the api address of the current commodity and has the api calling authority of the current data commodity, and the api calling and the viewing of related data can be carried out by using the apiKey given by the platform.
The system transaction platform module provides functions of user login, user registration, commodity shelving, commodity display and data transaction, the user registers information through the registration function, commodity purchase is performed through commodity transaction after registration is completed, the system provides access api authority of current commodities for the user after commodities are purchased, and the user can inquire data.
The commodity loading module comprises two parts of filling commodity information by a merchant and examining and verifying commodities by an administrator. The main form of the commodity is api, a merchant fills in a name, an api address and parameter data in a system, a data authority confirming process exists in the filling process, generated parameters are stored in a block chain through a data authority confirming algorithm in the data authority confirming process, the commodity information is submitted to be checked after being recorded, the commodity data is encrypted by the system through a corresponding encryption algorithm in the checking process, a key generated after encryption is also stored in the block chain, and an administrator can check the commodity information and determine whether to put the commodity on shelf according to specific practical conditions.
Further, in the above-mentioned case,
the system confirms the right of the data according to the similarity result as the basis of confirming the right, and for the data file with the highest repeatability, the page feedback is given to 'fail to pass the confirmation right authentication', and the confirmation right result and the file ownership are written into a block chain, so that the confirmation right information is ensured not to be falsified; if the data assets are not authorized, a user prompt is given to prompt the user that the data assets are not authorized.
The invention has the advantages that
The data transaction form of the website is many nowadays, but the data as a virtual asset is easy to copy and propagate, so that the data asset is easy to copy and trade, and great loss is caused to the affiliated user. The invention can ensure that the transaction of the data assets of the user in the system can be unique as much as possible, and the characteristics of the block chain are utilized, thereby enhancing the safety of the system, reducing the construction, operation and maintenance cost of the system, increasing the high availability characteristics and simultaneously realizing the traceability of the transaction. The benefit maximization and the loss minimization of the user assets are guaranteed to be possible.
Drawings
FIG. 1 is a diagram of the overall architecture of the system of the present invention;
fig. 2 is a schematic workflow diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
The invention applies the relevant knowledge in the field of big data, and the data processing and data analysis adopt partial big data processing forms and methods to process the data. The related right-confirming algorithm for data right-confirming generates a plurality of right-confirming parameters aiming at the current data product, meanwhile, the related right-confirming parameters in the data right-confirming are stored on a chain by using a block chain technology, and the uniqueness of the data of the transaction system is ensured by using a distributed storage intelligent contract technology of the block chain. And finally providing an interface for calling the data commodity api for the user by utilizing the transaction scene provided by the system.
The whole architecture of the system is divided into five hierarchical structures of an application layer, a service layer, an expansion layer, a network layer and a storage layer. Wherein the storage layer is responsible for storing public information such as membership information, public data indexes and transaction records on the public blockchain; the network layer is responsible for point-to-point communication among the members through a P2P network; the expansion layer is responsible for providing various safety guarantee mechanisms and guaranteeing the safe and stable operation of the whole system; the service layer provides support for each application and ensures the normal use of the application; the application layer provides functions of inquiry, transaction, complaint and the like for the user.
The system transaction platform module provides functions of user login, user registration, commodity shelving, commodity display, data transaction and the like, the user performs information registration through the registration function, commodity purchase is performed through commodity transaction after registration is completed, the system can provide access api authority of current commodities for the user after commodities are purchased, and the user can inquire data.
The commodity loading module comprises two parts of filling commodity information by a merchant and examining and verifying commodities by an administrator. The main form of the commodity is api, a merchant fills in data such as a name, an api address and parameters in a system, a data right confirming process exists in the filling process, the parameters generated in the data right confirming process are stored in a block chain through a data right confirming algorithm, the commodity information is submitted and checked after being recorded, the commodity data can be encrypted by the system through a corresponding encryption algorithm in the checking process, a key generated after encryption is also stored in the block chain, and an administrator can check the commodity information and determine whether to put the commodity on shelf according to specific practical conditions.
Data weight-determining algorithm model: we used the Simhash algorithm to detect the similarity of data. The simhash algorithm uses a b-bit hash value to represent the characteristic value of a file, and then uses the Hamming distance between simhashes to measure similarity. The Hamming distance is defined as the number of different corresponding bits in the two binary sequences. The simhash calculation method is as follows:
(1) initializing a b-dimensional vector V to 0, and initializing a binary number s of b bits to 0;
(2) for each shift, a b-bit signature h is calculated using a hash function (e.g., MD5, SHA 1). For i to 1 to b, if the ith bit of h is 1, the ith element of V is added with the feature weight; otherwise, the ith element of V subtracts the feature weight;
(3) if the ith element of V is greater than 0, the ith bit of s is 1, otherwise, it is 0;
(4) s is output as simhash.
The system confirms the right of the data according to the similarity result as the basis of confirming the right, and for the data file with high repeatability, the page feedback is given to 'fail to pass the confirmation right authentication', and the confirmation right result and the file ownership are written into a block chain, so that the confirmation right information is ensured not to be falsified; if the data assets are not authorized, a user prompt is given to prompt the user that the data assets are not authorized.
After a user purchases commodities, the system carries out chain link storage on the steps and the results of the transaction process of the commodities, information safety records of the whole process are guaranteed by using the characteristics of the block chain distributed accounts, and the whole transaction process can be traced back, traced and cannot be tampered, so that the whole transaction system is safer and more stable.
After a user purchases a data commodity, the system provides external services in the form of api times, although the traditional data transaction is also conducted in the form of api times, because the system is a b/s service architecture, if the amount of the service is large, and the user access concurrency is high, the calculation statistics of the api consumption times alone needs to be conducted through a central node every time, so that great pressure is generated on a central point server of the system, great influence is brought to the api service which needs high available service, the load balancing server sharing flow pressure needs to be increased, and the traditional optimization measures are difficult to improve the availability of the system and also difficult to reduce the cost of the system in all aspects. The invention designs a decentralized structural design based on a block chain, the block chain adopts a decentralized mode, equipment is automatically maintained by each network node, the availability requirement on a single node is greatly reduced, the system construction and operation and maintenance cost can be obviously reduced, and the life cycle is longer.
The method comprises the following steps: the overall service of the system is split, the service with high concurrent calling frequency (similar to interface calling of api interface commodities) is split, and the service with higher security, such as transaction process service, is split.
Step two: the services with low concurrency and low calling frequency are centrally deployed, meanwhile, the central node has a request distribution function (same as the distribution mode of cdn), namely after a user access request comes, the central node firstly judges through the central node, and the central node forwards the request to the block link point closest to the user for service.
Step three: building distributed blockchain system nodes, building a distributed network by taking cdn node deployment as an example (distance of one hop from a user), and also performing the deployment of a blockchain system at cdn nodes. The invention is used for processing the services called at high frequency and the services with higher safety requirements, and carrying out service processing, quantity statistical calculation and key information uplink on the distributed services. The data are acquired from the chain only when the relevant data are needed by the central node, and in addition, the data distributed by the central node are independently processed by the nodes on the chain.
The above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. A data transaction method based on block chain is characterized in that,
the method comprises the following steps:
1) the information of the main commodity is recorded into 2) the right of the commodity is confirmed 3) the commodity is audited and encrypted and put on the shelf;
in the process of commodity right confirmation, a right confirmation algorithm is utilized to confirm the right of the data commodity, and after the commodity right confirmation is successful, main right confirmation parameters and right confirmation information of the commodity are written into a block chain to calibrate a person to which the current commodity belongs; after the commodity is successfully checked, carrying out algorithm encryption on the transaction data to generate a key pair, and writing the commodity key pair into a block chain; the data commodity is served externally in the form of api, after the user successfully purchases the commodity, the user can obtain the api address of the current commodity and has the api calling authority of the current data commodity, and the api calling and the viewing of related data can be carried out by using the apiKey given by the platform.
2. The method of claim 1,
after a user purchases commodities, the steps and the results of the transaction process of the commodities are subjected to chain link storage, information safety records of the whole process are guaranteed by using the characteristics of the block chain distributed type account book, and the whole transaction process can be traced back, traced and cannot be tampered.
3. The method of claim 1,
after a user purchases a data commodity, external service is provided in the mode of api times, a block chain is in a decentralized structural design based on the block chain, the block chain adopts a decentralized mode, and equipment is maintained by each network node.
4. The method of claim 3,
comprises the following steps
Step 1): splitting the whole service, splitting the service with the highest concurrent high-call frequency, and splitting the service with the highest security;
step two: the method comprises the steps that centralized deployment is carried out on services with low concurrency and lowest calling frequency, meanwhile, a central node has a request distribution function, namely a user access request is sent, and then judgment is carried out through the central node, and the central node can forward the request to a block chain node closest to a user for service;
step 3): and building the distributed blockchain system node, and building by deploying at cdn node or deploying at cdn node.
5. A data transaction system based on a block chain is characterized in that,
the whole architecture is divided into five hierarchical structures of an application layer, a service layer, an expansion layer, a network layer and a storage layer;
wherein the storage layer is responsible for storing public information, such as membership information, public data indexes, and transaction records, on the public blockchain;
the network layer is responsible for point-to-point communication among the members through a P2P network;
the expansion layer is responsible for providing various safety guarantee mechanisms and guaranteeing the safe and stable operation of the whole system;
the service layer provides support for each application and ensures the normal use of the application;
the application layer provides functions of inquiry, transaction and complaint for the user;
the method comprises the steps that a right determining algorithm is utilized to determine the right of a data commodity, and after the right determination of the commodity is successful, main right determining parameters and right determining information of the commodity are written into a block chain to calibrate a person to which the current commodity belongs; after the commodity is successfully checked, carrying out algorithm encryption on the transaction data to generate a key pair, and writing the commodity key pair into a block chain; the data commodity is served externally in the form of api, after the user successfully purchases the commodity, the user can obtain the api address of the current commodity and has the api calling authority of the current data commodity, and the api calling and the viewing of related data can be carried out by using the apiKey given by the platform.
6. The system of claim 5,
the method comprises the steps of providing functions of user login, user registration, commodity shelf loading, commodity display and data transaction, carrying out information registration by a user through the registration function, carrying out commodity purchase through commodity transaction after registration is completed, providing access api authority of current commodities for the user after commodities are purchased, and inquiring data by the user.
7. The system of claim 5,
the commodity loading module comprises two parts of filling commodity information by a merchant and examining and verifying commodities by an administrator. The main form of the commodity is api, a merchant fills in a name, an api address and parameter data in a system, a data authority confirming process exists in the filling process, generated parameters are stored in a block chain through a data authority confirming algorithm in the data authority confirming process, the commodity information is submitted to be checked after being recorded, the commodity data is encrypted by a corresponding encryption algorithm in the checking process, a secret key generated after encryption is also stored in the block chain, the commodity information can be checked, and whether the commodity is put on shelf or not is determined according to specific practical conditions.
8. The system of claim 7,
the data is confirmed according to the similarity result as the basis of the confirmation, the page feedback 'failing confirmation authentication' is given to the data file with the highest repeatability, the confirmation result and the file ownership are written into a block chain, and the non-tampering of the confirmation information is ensured; if the data assets are not authorized, a user prompt is given to prompt the user that the data assets are not authorized.
CN202111419384.7A 2021-11-26 2021-11-26 Data transaction method and system based on block chain Pending CN114119231A (en)

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