CN107730225B - Big data transaction method, system, equipment and computer storage medium - Google Patents
Big data transaction method, system, equipment and computer storage medium Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION 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
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/04—Payment circuits
- G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
- G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION 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
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
- G06Q20/367—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes
- G06Q20/3674—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes involving authentication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION 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
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3821—Electronic credentials
- G06Q20/38215—Use of certificates or encrypted proofs of transaction rights
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION 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
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
Abstract
The invention discloses a big data transaction method, a system, equipment and a computer storage medium, wherein the method comprises the following steps: the method comprises the steps that a first data node publishes a tradable data index corresponding to a tradable data set of the first data node to a preset alliance chain sub-network, wherein the alliance chain sub-network comprises a preset number of alliance chain nodes; the second data node inquires a tradeable data index in the alliance chain sub-network, judges whether a tradeable data set meets self requirements or not according to the tradeable data index, and if so, sends a payment prompting message to the first alliance link node and sends a transaction requesting message to the first data node; the first federation node receiving the payment prompting message and transferring an amount corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node; the first data node receives the request-to-trade message and provides a tradable data set to the second data node. The big data transaction method disclosed by the invention reduces the overhead of the data node.
Description
Technical Field
The present invention relates to the field of big data technology, and more particularly, to a big data transaction method, system, device, and computer storage medium.
Background
With the development and maturity of big data technology, the application of big data is more and more extensive, and big data transaction also takes place.
The existing big data transaction method is a big data transaction method based on a block chain and cryptography, and comprises the following processes: the first data node and the second data node generate a transaction public and private key pair at a client of the first data node and the second data node, and the data center generates a single transaction public and private key pair for each transaction process; the first data node publishes tradable data on the blockchain; the second data node submits a data transaction application to the blockchain, generates an intermediate address according to the three-party public and private key pair, and transfers funds to the intermediate address; after confirming that funds are transferred into the intermediate address, the first data node writes the transaction message into the block chain; the first data node signs the use authority of the tradable data and then sends the signed use authority to the second data node; the second data node downloads tradable data from the blockchain according to the usage rights.
However, when a large data transaction method based on blockchain and cryptography is used, the data node needs to participate in the verification and accounting of the transaction process, and the overhead of the data node is large.
In summary, how to reduce the overhead of the data node is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a big data transaction method which can solve the technical problem of reducing the overhead of data nodes to a certain extent. The invention also provides a big data transaction system, equipment and a computer storage medium.
In order to achieve the above purpose, the invention provides the following technical scheme:
a big data transaction method, comprising:
the method comprises the steps that a first data node publishes a tradable data index corresponding to a tradable data set of the first data node to a preset alliance chain sub-network, wherein the alliance chain sub-network comprises a preset number of alliance chain nodes;
the second data node inquires the tradeable data index in the alliance chain sub-network, judges whether the tradeable data set meets the self requirement or not according to the tradeable data index, and if so, sends a payment prompting message to the first alliance link node and sends a transaction requesting message to the first data node;
the first federation link node receiving the payment hint message and transferring an amount corresponding to the tradable data set from the wallet address of the second data node to the wallet address of the first data node;
the first data node receives the request transaction message and provides the tradable data set to the second data node.
Preferably, the publishing, by the first data node, the tradeable data index corresponding to the tradeable data set of the first data node to a preset alliance chain subnet includes:
the method comprises the steps that a first data node arranges a tradable data index corresponding to a tradable data set into a data index packet, encrypts the data index packet by using a preset alliance public key and then sends the data index packet to a second alliance link node, wherein the data index packet comprises first verification information, a tradable data set keyword, tradable data set description and a tradable data set message abstract;
the second alliance chain node receives and decrypts the data index packet by using a preset alliance private key, judges whether the data index packet is correct or not based on the first verification information, if the data index packet is incorrect, discards the data index packet, and returns an error message to the first data node, and if the data index packet is correct, the data index packet is published to a preset alliance chain sub-network;
the second data node querying the tradable data index in the federation chain sub-network, comprising:
the second data node constructs a query request packet, encrypts the query request packet by using the alliance public key and then sends the query request packet to a third alliance link node, wherein the query request packet comprises second verification information;
the third alliance link node receives and decrypts the inquiry request packet by using the alliance private key, judges whether the inquiry request packet is correct or not based on the second verification information, discards the packet if the inquiry request packet is incorrect, and returns an error message to the second data node, if the inquiry request packet is correct, searches a data index packet corresponding to the inquiry request packet, and returns the searched data index packet to the second data node;
the second data node judges whether the tradable data set meets the self requirement according to the tradable data index, and the method comprises the following steps:
and the second data node judges whether the tradable data set meets the self requirement or not according to the tradable data set key words, tradable data set description and tradable data set message abstract in the data index packet returned by the third alliance link node.
Preferably, after the third alliance link node searches for the data index packet corresponding to the query request packet, before the third alliance link node returns the searched data index packet to the second data node, the method further includes:
the third alliance link node broadcasts the query request packet in the alliance link sub-network until each alliance link node in the alliance link sub-network receives the query request packet;
each alliance link node searches a data index packet corresponding to the query request packet, the third alliance link node sends the data index packet searched by the third alliance link node to other alliance link nodes for authentication, and if the data index packet passes the authentication, the data index packet searched by the third alliance link node is returned to the second data node.
Preferably, the second data node sends the payment prompting message to the first alliance-link node, and the payment prompting message comprises:
the second data node constructs a pre-payment packet, encrypts the pre-payment packet by using a preset alliance public key and then sends the pre-payment packet to the first alliance link node, wherein the pre-payment packet comprises third verification information;
the first federation link node receiving the payment hint message and transferring an amount corresponding to the tradable data set from the wallet address of the second data node to the wallet address of the first data node comprises:
and the first alliance link node decrypts the prepaid package by using a preset alliance private key, judges whether the prepaid package is correct or not based on the third verification information, discards the package if the prepaid package is incorrect, returns an error message to the second data node, and transfers the amount corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node if the prepaid package is correct.
Preferably, after the second federation link node publishes the data index packet to a preset federation chain sub-network, before the first federation link node transfers the amount corresponding to the tradable data set from the wallet address of the second data node to the wallet address of the first data node, the method further includes:
the second alliance chain node generates an intelligent contract based on the data index packet, and deploys the intelligent contract into a preset alliance chain, wherein the intelligent contract comprises a first transfer function, a second transfer function and a transaction function;
the federation chain returns a contract address to the second federation chain node;
the second alliance chain node generates an index record based on the data index packet and the contract address, and stores the index record into a preset alliance chain;
the first federation link, transferring an amount corresponding to the tradable data set from the wallet address of the second data node to the wallet address of the first data node, comprises:
the first coalition chain node starts the first transfer function, transfers the amount corresponding to the transactable data set from the wallet address of the second data node to the contract address, generates a first transfer record and stores the first transfer record into the coalition chain;
the first alliance chain node starts the second transfer function, transfers the amount from the contract address to the wallet address of the first data node, generates a second transfer record and stores the second transfer record into the alliance chain;
the first federation link node initiating the second transfer function, after transferring the amount from the contract address to the wallet address of the first data node, further comprising:
and the first alliance chain node starts the transaction function, constructs a transaction record from the first data node to the second data node and stores the transaction record into the alliance chain.
Preferably, the first data node arranges the tradable data indexes corresponding to the tradable data set into a data index packet, and includes:
the first data node arranges the tradable data indexes corresponding to the tradable data set into a data index packet, and the data index packet comprises the public key of the first data node;
the second data node sends a request transaction message to the first data node, including:
the second data node constructs a data request packet, encrypts the data request packet by using the public key of the first data node and then sends the data request packet to the first data node, wherein the data request packet comprises the public key of the second data node and fourth verification information;
the first data node receiving the request transaction message and providing the tradable data set to the second data node, comprising:
the first data node decrypts the data request packet by using a private key of the first data node, judges whether the data request packet is correct or not based on the fourth verification information, discards the packet if the data request packet is incorrect, and returns an error message to the second data node; if the first transfer record exists in the alliance chain, judging whether the first transfer record exists in the alliance chain, if so, constructing a data transaction packet, encrypting the data transaction packet by using a public key of the second data node, and then sending the encrypted data transaction packet to the second data node;
and the second data node decrypts the data transaction packet by using a private key of the second data node, and views and/or downloads the tradable data set based on the data transaction packet.
Preferably, the storing the index record into a preset federation chain by the second federation link point includes:
the second alliance chain node stores the index record into a preset alliance chain in a block form;
the first coalition link stores the first transfer record, the second transfer record, and the transaction record into the coalition chain, including:
the first coalition chain node stores the first transfer record, the second transfer record, and the transaction record in blocks into the coalition chain.
The invention also provides a big data transaction system, which comprises a first data node, a second data node, a alliance chain sub-network and an alliance chain node;
the first data node is used for publishing a tradable data index corresponding to the tradable data set to a preset alliance chain sub-network, and the alliance chain sub-network comprises a preset number of alliance chain nodes; the transaction request message is also used for receiving the transaction request message sent by the second data node and providing the transactable data set to the second data node;
the second data node is used for inquiring the tradeable data index in the alliance chain sub-network, judging whether the tradeable data set meets the self requirement or not according to the tradeable data index, if so, sending a payment prompting message to the first alliance link node, and sending a transaction requesting message to the first data node;
the first federation link node is configured to receive the payment hint message and forward an amount corresponding to the tradable data set from the wallet address of the second data node to the wallet address of the first data node.
The present invention also provides a big data transaction apparatus, comprising:
a memory for storing a computer program;
a processor for implementing the steps of a big data transaction method as described in any one of the above when the computer program is executed.
The invention also provides a computer storage medium having a computer program stored thereon, which when executed by a processor implements the steps of a big data transaction method as described in any one of the above.
The invention provides a big data transaction method, which comprises the following steps: the method comprises the steps that a first data node publishes a tradable data index corresponding to a tradable data set of the first data node to a preset alliance chain sub-network, wherein the alliance chain sub-network comprises a preset number of alliance chain nodes; the second data node inquires a tradeable data index in the alliance chain sub-network, judges whether a tradeable data set meets self requirements or not according to the tradeable data index, and if so, sends a payment prompting message to the first alliance link node and sends a transaction requesting message to the first data node; the first federation node receiving the payment prompting message and transferring an amount corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node; the first data node receives the request-to-trade message and provides a tradable data set to the second data node. In the big data transaction method provided by the invention, the first alliance link node transfers the amount of money corresponding to the transactable data set provided by the first data node from the wallet address of the second data node to the wallet address of the first data node under the trigger of the payment prompt message of the second data node, and the verification and the accounting are carried out only by the alliance link node in the alliance link sub-network in the transaction process. In summary, the big data transaction method provided by the invention solves the technical problem of how to reduce the overhead of the data node. The big data transaction system, the big data transaction equipment and the computer storage medium provided by the invention also solve the corresponding technical problems.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a big data transaction method according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a big data transaction system according to an embodiment of the present invention
Fig. 3 is a schematic structural diagram of a big data transaction device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a big data transaction method according to an embodiment of the present invention.
The big data transaction method provided by the embodiment of the invention can comprise the following steps:
step S101: the first data node publishes a tradeable data index corresponding to the tradeable data set to a preset alliance chain sub-network, and the alliance chain sub-network comprises a preset number of alliance chain nodes.
The data node is a mechanism for storage management and data demand, and can be an organ, a company, an enterprise and an individual; the alliance chain node is equipment with strong storage capacity and computing capacity, and can be provided by organization after qualification, a plurality of alliance chain nodes are connected with each other to form a point-to-point alliance chain sub-network, and in addition, the alliance chain node and the data node are connected with each other; as used herein, a tradable data set is a data set that is unique to a first data node but not to other data nodes, and a tradable data index refers to an index corresponding to a tradable data set, from which other data nodes can search for a tradable data set.
Step S102: and the second data node inquires a tradeable data index in the alliance chain sub-network, judges whether a tradeable data set meets the self requirement or not according to the tradeable data index, and if so, sends a payment prompting message to the first alliance link node and sends a transaction requesting message to the first data node.
In practical application, the big data transaction method provided by the embodiment of the invention is provided with a plurality of data nodes, and when one data node provides a transactable data set to the outside, the data node is a first data node, namely a data provider; when a data node needs to acquire a tradable data set, the data node is a second data node, namely a data demand side.
Step S103: the first federation node receives the payment prompt message and transfers an amount corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node.
In practical application, the payment prompting message may be received by a federation link point connected to the first data node in a federation chain subnet, where the federation link point is the first federation chain node. Note that the wallet of the second data node stores the balance after the input and the output of the second data node itself, and the wallet of the first data node stores the balance after the input and the output of the first data node itself, and the wallet address is also the identifier of the wallet.
Step S104: the first data node receives the request-to-trade message and provides a tradable data set to the second data node.
After receiving the request transaction message sent by the second data node, the first data node may directly provide the tradable data set to the second data node, or may indirectly provide the tradable data set to the second data node.
The invention provides a big data transaction method, which comprises the following steps: the method comprises the steps that a first data node publishes a tradable data index corresponding to a tradable data set of the first data node to a preset alliance chain sub-network, wherein the alliance chain sub-network comprises a preset number of alliance chain nodes; the second data node inquires a tradeable data index in the alliance chain sub-network, judges whether a tradeable data set meets self requirements or not according to the tradeable data index, and if so, sends a payment prompting message to the first alliance link node and sends a transaction requesting message to the first data node; the first federation node receiving the payment prompting message and transferring an amount corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node; the first data node receives the request-to-trade message and provides a tradable data set to the second data node. In the big data transaction method provided by the invention, the first alliance link node transfers the amount of money corresponding to the transactable data set provided by the first data node from the wallet address of the second data node to the wallet address of the first data node under the trigger of the payment prompt message of the second data node, and the verification and the accounting are carried out only by the alliance link node in the alliance link sub-network in the transaction process. In summary, the big data transaction method provided by the invention solves the technical problem of how to reduce the overhead of the data node.
In the big data transaction method provided in the embodiment of the present invention, the publishing, by the first data node, the tradable data index corresponding to the tradable data set of the first data node to the preset alliance chain subnet may include:
the method comprises the steps that a first data node arranges a tradable data index corresponding to a tradable data set into a data index packet, encrypts the data index packet by using a preset alliance public key and then sends the data index packet to a second alliance link node, wherein the data index packet comprises first verification information, tradable data set keywords, tradable data set description and tradable data set message abstract;
the second alliance chain node receives and decrypts a data index packet by using a preset alliance private key, whether the data index packet is correct or not is judged based on first verification information, if the data index packet is incorrect, the packet is discarded, an error message is returned to the first data node, and if the data index packet is correct, the data index packet is published into a preset alliance chain sub-network until each alliance chain node in the alliance chain sub-network receives the data index packet;
the second data node queries the tradable data index in the federation chain sub-network, which may include:
the second data node constructs a query request packet, encrypts the query request packet by using a federation public key and then sends the query request packet to a third federation link node, wherein the query request packet comprises second verification information;
the third alliance link node receives and decrypts the inquiry request packet by using the alliance private key, judges whether the inquiry request packet is correct or not based on the second verification information, if the inquiry request packet is incorrect, discards the packet and returns an error message to the second data node, if the inquiry request packet is correct, searches a data index packet corresponding to the inquiry request packet and returns the searched data index packet to the second data node;
the second data node judges whether the tradable data set meets the self requirement according to the tradable data index, and the judging step may include:
and the second data node judges whether the tradable data set meets the self requirement or not according to the tradable data set keywords, the tradable data set description and the tradable data set message abstract in the data index packet returned by the third alliance link node.
In practical applications, the first data node may publish the tradable data index to the federation chain subnet via a data index packet, where the data index packet may include a price of the tradable data set, and the like. It should be noted that the federation public key referred to herein may be generated by a federation chain sub-network and sent to each data node by a federation chain node, and correspondingly, each federation chain node has a federation private key corresponding to the federation public key, the federation public key is used to encrypt a file, and the federation private key is used to decrypt the file encrypted by the federation public key; the type of the first authentication information may be a digital signature or the like. After receiving the data index packet, the second alliance link node can judge whether the first verification information is correct, if so, the data index packet is correct, and if not, the data index packet is incorrect; the method for determining whether the first verification information is correct by the second data node may be various, for example, whether the first verification information is consistent with the verification information stored by the second data node is determined, if yes, the first verification information is correct, and if not, the first verification information is incorrect, and the like. By means of the federation public key, the federation private key and the first verification information, the process that the first data node publishes the tradeable data set to the federation link node can be safer, and the risk that the outside randomly acquires the tradeable data set is reduced.
In practical application, the second data node may query the tradable data index in the federation chain sub-network by using the federation public key, the federation private key and a query request packet, where the query request packet may include second verification information, and the type of the second verification information may be a digital signature or the like. By means of the alliance public key, the alliance private key and the second verification information, the process that the second data node inquires the tradeable data index is safer, and the risk that the outside randomly obtains the tradeable data index is reduced. In practical application, the data index packet may include a tradeable data set keyword, a tradeable data set description, a tradeable data set message digest, and the like, so that after the second data node queries the data index packet, it can determine whether the tradeable data set satisfies its own requirements through the tradeable data set keyword, the tradeable data set description, and the tradeable data set message digest.
In the big data transaction method provided in the embodiment of the present invention, after the third alliance link node searches for the data index packet corresponding to the query request packet, before the third alliance link node returns the searched data index packet to the second data node, the method may further include:
the third alliance link node broadcasts the inquiry request packet in the alliance link sub-network until each alliance link node in the alliance link sub-network receives the inquiry request packet;
each alliance link node searches a data index packet corresponding to the query request packet, the third alliance link node sends the data index packet searched by the third alliance link node to other alliance link nodes for authentication, and if the authentication is passed, the data index packet searched by the third alliance link node is returned to the second data node.
In practical application, after the third alliance link node finds the data index packet corresponding to the query request packet, the third alliance link node can also broadcast the query request packet to other alliance link nodes in the alliance link subnet, and sends the data index packet found by the third alliance link node to the other alliance link nodes; and other alliance link nodes search the data index packet and authenticate the data index packet sent by the third alliance link node, and if the authentication is passed, the third alliance link node returns the data index packet searched by the third alliance link node to the second data node, so that the data index packet returned to the second data node by the third alliance link node is more accurate. In practical application, the other alliance link nodes authenticate the data index packet sent by the third alliance link node, wherein the other alliance link nodes judge whether the data index packet searched by the other alliance link nodes is consistent with the data index packet sent by the third alliance link node, if so, the authentication is passed, and if not, the authentication is not passed; in practical application, when the number of other alliance link nodes which are consistent with the data index packet sent by the third alliance link node and are judged to reach the preset number, the authentication is considered to be passed, so that the influence of finding out wrong other alliance link nodes can be eliminated, and the authentication effect is improved.
In the big data transaction method provided by the embodiment of the present invention, the sending, by the second data node, the payment instruction message to the first federation link node may include:
the second data node constructs a pre-payment packet, encrypts the pre-payment packet by using a preset alliance public key and then sends the pre-payment packet to the first alliance link node, wherein the pre-payment packet comprises third verification information;
receiving, by the first federation node, the payment prompt message and transferring an amount corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node may include:
and the first alliance link node decrypts the prepaid package by using a preset alliance private key, judges whether the prepaid package is correct or not based on the third verification information, discards the package and returns an error message to the second data node if the prepaid package is incorrect, and transfers the amount of money corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node if the prepaid package is correct.
In practical application, other contents can be added to the prepaid package according to practical needs, and the invention is not specifically limited herein; the type of the third authentication information may be a digital signature or the like. The accuracy of the transfer process in the big data transaction method provided by the embodiment of the invention can be improved by means of the alliance public key, the alliance private key and the third verification information.
In the big data transaction method provided in the embodiment of the present invention, after the second alliance link node publishes the data index packet to the preset alliance link subnet, before the first alliance link node transfers the amount of money corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node, the method may further include:
the second alliance chain node generates an intelligent contract based on the data index package, and deploys the intelligent contract into a preset alliance chain, wherein the intelligent contract comprises a first transfer function, a second transfer function and a transaction function;
the alliance chain returns a contract address to a second alliance chain node;
the second alliance link node generates an index record based on the data index packet and the contract address, and stores the index record into a preset alliance link;
the first federation link, transferring an amount corresponding to the tradable data set from the wallet address of the second data node to the wallet address of the first data node, may include:
the first alliance chain node starts a first transfer function, money corresponding to the transactable data set is transferred from the wallet address of the second data node to a contract address, a first transfer record is generated, and the first transfer record is stored in the alliance chain;
the first alliance link node starts a second transfer function, transfers the money amount from the contract address to the wallet address of the first data node, generates a second transfer record and stores the second transfer record into the alliance link;
the first alliance link node starting the second transfer function, and after transferring the money amount from the contract address to the wallet address of the first data node, the method further comprises the following steps:
the first federation node initiates a transaction function, constructs a transaction record from the first data node to the second data node, and stores the transaction record into a federation chain.
In practice, the smart contract referred to herein may be a programmable computer script; the generation process of the federation chain may be: and generating an appearance creating block by using a certain alliance link point in the alliance chain sub-network, and taking the appearance creating block as the start of the alliance chain to further generate the alliance chain, namely the alliance chain also belongs to the alliance chain sub-network. The transfer trust of the person in the transfer process can be converted into the trust of the code by means of the intelligent contract, and the transfer trust of the big data transaction method provided by the embodiment of the invention is improved. In addition, the index record can determine the initial owner of the tradable data set, the transaction record can prove the use right of the tradable data set, and the index record and the transaction record can be used for notarizing the secondary transaction process, so that the occurrence probability of the secondary transaction is reduced.
In the big data transaction method provided in the embodiment of the present invention, the arranging, by the first data node, the tradable data index corresponding to the tradable data set of the first data node into the data index packet may include:
the first data node arranges the tradable data index corresponding to the tradable data set into a data index packet, and the data index packet comprises a public key of the first data node;
the second data node sending the transaction request message to the first data node may include:
the second data node constructs a data request packet, encrypts the data request packet by using the public key of the first data node and then sends the data request packet to the first data node, wherein the data request packet comprises the public key of the second data node and fourth verification information;
the first data node receiving the request transaction message and providing the tradable data set to the second data node may include:
the first data node decrypts the data request packet by using a self private key, judges whether the data request packet is correct or not based on fourth verification information, discards the packet if the data request packet is incorrect, and returns an error message to the second data node; if the data transaction packet is correct, judging whether a first transfer record exists in the alliance chain, if so, constructing a data transaction packet, encrypting the data transaction packet by using a public key of a second data node, and then sending the encrypted data transaction packet to the second data node;
the second data node decrypts the data transaction package by using the private key of the second data node, and views and/or downloads the tradable data set based on the data transaction package.
In practical application, the safety of the tradable data set transaction between the first data node and the second data node can be improved by means of the public key of the first data node, the data request packet, the private key of the first data node, the public key of the second data node and the private key of the second data node; in addition, the first data node sends the transactable data set to the second data node after judging that the first transfer record exists in the alliance chain, and because the first transfer record is produced after the first alliance chain node transfers the amount of money corresponding to the transactable data set to the contract address, the benefit safety of the first data node can be ensured by means of the first transfer record. In addition, the tradable data set is directly transmitted between the first data node and the second data node, so that the third party can be prevented from backing up the tradable data set to a certain extent, and the safety of the trading process is further ensured.
In the big data transaction method provided in the embodiment of the present invention, the storing of the index record into the preset alliance chain by the second alliance chain node may include:
the second alliance chain node stores the index record into a preset alliance chain in a block form;
the first coalition link point storing the first transfer record, the second transfer record, and the transaction record in a coalition chain may include:
the first coalition chain node stores the first transfer record, the second transfer record, and the transaction record in blocks into a coalition chain.
In practical application, the index record, the first transfer record, the second transfer record and the transaction record can be conveniently and simply stored in the alliance chain by means of the block. Before generating the block corresponding to the index record, the second data node may store the index record in a cache pool, and temporarily store the index record by using the cache pool. The process of the second data node generating the block corresponding to the index record may be: aggregating the index records in the cache pool, and storing the aggregated index records in the block main body; filling version and timestamp fields of the block header; calculating a Merkle tree root of an index record in the block main body, and filling the Merkle tree root into a block head; the parent chunk hash value field of the chunk header is filled. After the second data node generates the block, the block can be broadcasted in the alliance chain sub-network, after other alliance chain nodes receive the block, whether the hash value field of the parent block of the block is correct or not can be checked firstly, if yes, whether each field of a block head is correct or not is checked, if all the fields of the block head are correct, a correct message is returned to the second data node, and the second data node stores the block into a preset alliance chain. Therefore, the process that the second data node generates the block and stores the block into the preset alliance chain is safer and more reliable. The generation principle of the respective blocks of the first transfer record, the second transfer record and the transaction record is the same as the block generation principle of the index record, and the description is omitted here.
The invention also provides a big data transaction system which has the corresponding effect of the big data transaction method provided by the embodiment of the invention. Referring to fig. 2, fig. 2 is a schematic structural diagram of a big data transaction system according to an embodiment of the present invention.
The big data transaction system provided by the embodiment of the invention comprises a first data node A1, a second data node A2, a federation chain sub-network A3 and a first federation chain node A4;
the first data node A1 is configured to publish a tradable data index corresponding to the tradable data set to a preset federation chain sub-network A3, where the federation chain sub-network includes a preset number of federation chain nodes;
the second data node A2 is used for inquiring the tradable data index in the alliance chain sub-network A3, judging whether the tradable data set meets the self requirement according to the tradable data index, if so, sending a payment prompting message to the first alliance chain node A1, and sending a transaction requesting message to the first data node A1;
a first federation link node A4 for receiving the payment hint message and transferring an amount corresponding to the tradable data set from the wallet address of the second data node A2 to the wallet address of the first data node A1;
a first data node a1 for receiving the request transaction message and providing a tradable data set to a second data node a 2.
In the big data transaction system provided in the embodiment of the present invention, please refer to the above embodiment for the description of each module, which is not described herein again.
The invention also provides big data transaction equipment and a computer readable storage medium, which have the corresponding effects of the big data transaction method provided by the embodiment of the invention. Referring to fig. 3, fig. 3 is a schematic structural diagram of a big data transaction device according to an embodiment of the present invention.
The big data transaction device provided by the embodiment of the invention can comprise:
a memory B1 for storing computer programs;
processor B2, configured to execute the computer program to implement the steps of a big data transaction method as described in any of the above embodiments.
In a computer storage medium provided in an embodiment of the present invention, a computer program is stored on the computer storage medium, and when executed by a processor, the computer program implements the steps of a big data transaction method as described in any of the above embodiments.
For a description of a relevant part in a big data transaction system, a device and a computer storage medium provided by the embodiments of the present invention, reference is made to detailed descriptions of a corresponding part in a big data transaction method provided by the embodiments of the present invention, and details are not repeated herein. In addition, parts of the above technical solutions provided in the embodiments of the present invention that are consistent with the implementation principles of the corresponding technical solutions in the prior art are not described in detail, so as to avoid redundant description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A big data transaction method, comprising:
the method comprises the steps that a first data node publishes a tradable data index corresponding to a tradable data set of the first data node to a preset alliance chain sub-network, wherein the alliance chain sub-network comprises a preset number of alliance chain nodes;
the second data node inquires the tradeable data index in the alliance chain sub-network, judges whether the tradeable data set meets the self requirement or not according to the tradeable data index, and if so, sends a payment prompting message to the first alliance link node and sends a transaction requesting message to the first data node; the sending of the payment prompt message to the first federation link node includes: the second data node constructs a pre-payment packet, encrypts the pre-payment packet by using a preset alliance public key and then sends the pre-payment packet to the first alliance link node, wherein the pre-payment packet comprises third verification information;
the first federation link node receiving the payment hint message and transferring an amount corresponding to the tradable data set from the wallet address of the second data node to the wallet address of the first data node comprises: the first alliance link node decrypts the prepaid package by using a preset alliance private key, judges whether the prepaid package is correct or not based on the third verification information, discards the package if the prepaid package is incorrect, and returns an error message to the second data node, and if the prepaid package is correct, transfers the amount corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node;
the first data node receiving the request transaction message and providing the tradable data set to the second data node;
the method for publishing the tradable data index corresponding to the tradable data set to the preset alliance chain sub-network by the first data node comprises the following steps:
the method comprises the steps that a first data node arranges a tradable data index corresponding to a tradable data set into a data index packet, encrypts the data index packet by using a preset alliance public key and then sends the data index packet to a second alliance link node, wherein the data index packet comprises first verification information, a tradable data set keyword, tradable data set description and a tradable data set message abstract;
the second alliance chain node receives and decrypts the data index packet by using a preset alliance private key, judges whether the data index packet is correct or not based on the first verification information, if the data index packet is incorrect, discards the data index packet, and returns an error message to the first data node, and if the data index packet is correct, the data index packet is published to a preset alliance chain sub-network;
the second data node querying the tradable data index in the federation chain sub-network, comprising:
the second data node constructs a query request packet, encrypts the query request packet by using the alliance public key and then sends the query request packet to a third alliance link node, wherein the query request packet comprises second verification information;
the third alliance link node receives and decrypts the inquiry request packet by using the alliance private key, judges whether the inquiry request packet is correct or not based on the second verification information, discards the packet if the inquiry request packet is incorrect, and returns an error message to the second data node, if the inquiry request packet is correct, searches a data index packet corresponding to the inquiry request packet, and returns the searched data index packet to the second data node;
the second data node judges whether the tradable data set meets the self requirement according to the tradable data index, and the method comprises the following steps:
and the second data node judges whether the tradable data set meets the self requirement or not according to the tradable data set key words, tradable data set description and tradable data set message abstract in the data index packet returned by the third alliance link node.
2. The method of claim 1, wherein after the third alliance link node searches for the data index packet corresponding to the query request packet, before the third alliance link node returns the searched data index packet to the second data node, further comprising:
the third alliance link node broadcasts the query request packet in the alliance link sub-network until each alliance link node in the alliance link sub-network receives the query request packet;
each alliance link node searches a data index packet corresponding to the query request packet, the third alliance link node sends the data index packet searched by the third alliance link node to other alliance link nodes for authentication, and if the data index packet passes the authentication, the data index packet searched by the third alliance link node is returned to the second data node.
3. The method of claim 1, wherein after the second federation link node publishes the data index packet into a pre-defined federation chain sub-network, the first federation link node forwards an amount corresponding to the tradable data set from a wallet address of the second data node to a wallet address of the first data node, further comprising:
the second alliance chain node generates an intelligent contract based on the data index packet, and deploys the intelligent contract into a preset alliance chain, wherein the intelligent contract comprises a first transfer function, a second transfer function and a transaction function;
the federation chain returns a contract address to the second federation chain node;
the second alliance chain node generates an index record based on the data index packet and the contract address, and stores the index record into a preset alliance chain;
the first federation link, transferring an amount corresponding to the tradable data set from the wallet address of the second data node to the wallet address of the first data node, comprises:
the first coalition chain node starts the first transfer function, transfers the amount corresponding to the transactable data set from the wallet address of the second data node to the contract address, generates a first transfer record and stores the first transfer record into the coalition chain;
the first alliance chain node starts the second transfer function, transfers the amount from the contract address to the wallet address of the first data node, generates a second transfer record and stores the second transfer record into the alliance chain;
the first federation link node initiating the second transfer function, after transferring the amount from the contract address to the wallet address of the first data node, further comprising:
and the first alliance chain node starts the transaction function, constructs a transaction record from the first data node to the second data node and stores the transaction record into the alliance chain.
4. The method of claim 3, wherein the first data node arranges the tradable data indexes corresponding to the tradable data set into a data index packet, and comprises:
the first data node arranges the tradable data indexes corresponding to the tradable data set into a data index packet, and the data index packet comprises the public key of the first data node;
the second data node sends a request transaction message to the first data node, including:
the second data node constructs a data request packet, encrypts the data request packet by using the public key of the first data node and then sends the data request packet to the first data node, wherein the data request packet comprises the public key of the second data node and fourth verification information;
the first data node receiving the request transaction message and providing the tradable data set to the second data node, comprising:
the first data node decrypts the data request packet by using a private key of the first data node, judges whether the data request packet is correct or not based on the fourth verification information, discards the packet if the data request packet is incorrect, and returns an error message to the second data node; if the first transfer record exists in the alliance chain, judging whether the first transfer record exists in the alliance chain, if so, constructing a data transaction packet, encrypting the data transaction packet by using a public key of the second data node, and then sending the encrypted data transaction packet to the second data node;
and the second data node decrypts the data transaction packet by using a private key of the second data node, and views and/or downloads the tradable data set based on the data transaction packet.
5. The method of claim 3, wherein the second federation link point storing the index record in a preset federation chain comprises:
the second alliance chain node stores the index record into a preset alliance chain in a block form;
the first coalition link stores the first transfer record, the second transfer record, and the transaction record into the coalition chain, including:
the first coalition chain node stores the first transfer record, the second transfer record, and the transaction record in blocks into the coalition chain.
6. The big data transaction system is characterized by comprising a first data node, a second data node, a alliance chain sub-network and an alliance chain node;
the first data node is used for publishing a tradable data index corresponding to the tradable data set to a preset alliance chain sub-network, and the alliance chain sub-network comprises a preset number of alliance chain nodes; the transaction request message is also used for receiving the transaction request message sent by the second data node and providing the transactable data set to the second data node;
the second data node is used for inquiring the tradeable data index in the alliance chain sub-network, judging whether the tradeable data set meets the self requirement or not according to the tradeable data index, if so, sending a payment prompting message to the first alliance link node, and sending a transaction requesting message to the first data node; the sending of the payment prompt message to the first federation link node includes: the second data node constructs a pre-payment packet, encrypts the pre-payment packet by using a preset alliance public key and then sends the pre-payment packet to the first alliance link node, wherein the pre-payment packet comprises third verification information;
the first federation link node, configured to receive the payment hint message and forward an amount corresponding to the tradable data set from the wallet address of the second data node to the wallet address of the first data node, comprises: the first alliance link node decrypts the prepaid package by using a preset alliance private key, judges whether the prepaid package is correct or not based on the third verification information, discards the package if the prepaid package is incorrect, and returns an error message to the second data node, and if the prepaid package is correct, transfers the amount corresponding to the transactable data set from the wallet address of the second data node to the wallet address of the first data node;
wherein, the publishing the tradeable data index corresponding to the self tradeable data set to the preset alliance chain sub-network comprises:
the method comprises the steps that a first data node arranges a tradable data index corresponding to a tradable data set into a data index packet, encrypts the data index packet by using a preset alliance public key and then sends the data index packet to a second alliance link node, wherein the data index packet comprises first verification information, a tradable data set keyword, tradable data set description and a tradable data set message abstract;
the second alliance chain node receives and decrypts the data index packet by using a preset alliance private key, judges whether the data index packet is correct or not based on the first verification information, if the data index packet is incorrect, discards the data index packet, and returns an error message to the first data node, and if the data index packet is correct, the data index packet is published to a preset alliance chain sub-network;
said querying said tradable data index in said federation chain sub-network comprises:
the second data node constructs a query request packet, encrypts the query request packet by using the alliance public key and then sends the query request packet to a third alliance link node, wherein the query request packet comprises second verification information;
the third alliance link node receives and decrypts the inquiry request packet by using the alliance private key, judges whether the inquiry request packet is correct or not based on the second verification information, discards the packet if the inquiry request packet is incorrect, and returns an error message to the second data node, if the inquiry request packet is correct, searches a data index packet corresponding to the inquiry request packet, and returns the searched data index packet to the second data node;
the determining whether the tradable data set meets the self-demand according to the tradable data index includes:
and the second data node judges whether the tradable data set meets the self requirement or not according to the tradable data set key words, tradable data set description and tradable data set message abstract in the data index packet returned by the third alliance link node.
7. A big data transaction apparatus, comprising:
a memory for storing a computer program;
a processor for implementing the steps of a big data transaction method according to any of claims 1 to 5 when executing the computer program.
8. A computer storage medium, characterized in that the computer storage medium has stored thereon a computer program which, when being executed by a processor, realizes the steps of a big data transaction method according to any one of claims 1 to 5.
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