CN113469692A - Internet of things data transaction method based on block chain - Google Patents
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Abstract
The invention provides a block chain-based Internet of things data transaction method, which comprises the following steps: the method comprises the steps that a supplier block chain platform submits a registration application, registration authentication is carried out, after the registration is completed, the block chain platform receives original data sent by a supplier, the original data are identified, if the original data are internet of things data, the internet of things data are encrypted and analyzed to obtain data attributes, the platform establishes an index, the index and the data attributes are written into a block chain, the encrypted data are stored in a cloud server, the supplier block chain platform submits a transaction application, the platform verifies an internet of things acquirer according to the transaction application, after the verification is passed, the platform acquires the internet of things data needed by the acquirer through the index and decrypts the internet of things data, the decrypted data are sent to the acquirer, and the transaction is completed according to transaction amount. The block chain-based data transaction method of the Internet of things can realize transaction sharing of the data of the Internet of things and can ensure that the data of the Internet of things is not leaked in the transaction process.
Description
Technical Field
The invention relates to the technical field of block chains and information security, in particular to a data transaction method of an internet of things based on the block chains.
Background
With the rapid development of the Internet of things, communication technologies and industry 4.0, various Internet of things devices are connected to the Internet through some communication technologies (such as wifi, zigbee and the like), so that various value-added and friendly services are provided for users. A large amount of internet of things equipment can generate a large amount of data, however, internet of things data is often stored in the cloud server independently, and the cloud server is semi-trusted, so that reliability and confidentiality of the data are difficult to guarantee, leakage of the internet of things data is easy to cause, transaction sharing of the internet of things data cannot be realized, and the internet of things data is difficult to create due value, and resource waste is caused. Therefore, it is necessary to design a block chain-based data transaction method for the internet of things.
Disclosure of Invention
The invention aims to provide a block chain-based data transaction method of the Internet of things, which can realize transaction sharing of the data of the Internet of things, improve the resource utilization rate, ensure that the data of the Internet of things is not leaked in the transaction process and improve the safety.
In order to achieve the purpose, the invention provides the following scheme:
a block chain-based Internet of things data transaction method comprises the following steps:
step 1: the block chain platform of the data supplier of the Internet of things submits a registration application, and the block chain platform performs registration authentication on the data supplier of the Internet of things according to the registration application;
step 2: after the authentication is finished, the Internet of things data supply direction block chain platform sends original data, the block chain platform identifies the original data and judges whether the original data is the Internet of things data, if the original data is the Internet of things data, data attributes are obtained according to the Internet of things data, and the Internet of things data are encrypted;
and step 3: the block chain platform establishes an index based on the Internet of things data, writes the index and data attributes into a block chain, and stores the encrypted Internet of things data in a cloud server;
and 4, step 4: the method comprises the steps that an Internet of things data acquisition direction blockchain platform submits a transaction application, and the blockchain platform verifies an Internet of things acquirer according to the transaction application;
and 5: after the verification is passed, the block chain platform acquires the Internet of things data required by the Internet of things acquiring party through the index, decrypts the Internet of things data, sends the decrypted Internet of things data to the Internet of things data acquiring party, deducts the transaction amount from the account balance of the Internet of things data acquiring party, and transfers the transaction amount to the account of the Internet of things data supplying party to complete the transaction.
Optionally, in step 1, the internet of things data supplier block chain platform submits a registration application, and the block chain platform performs registration authentication on the internet of things data supplier according to the registration application, specifically:
the block chain platform generates a first asymmetric key and sends a first public key of the first asymmetric key to the data supplier of the internet of things to finish registration authentication.
Optionally, in step 2, after the authentication is completed, the internet of things data supply direction block chain platform sends original data, the block chain platform identifies the original data, determines whether the original data is internet of things data, and if the original data is internet of things data, obtains a data attribute according to the internet of things data, and encrypts the internet of things data, specifically:
after the authentication is completed, the Internet of things data supplier encrypts original data through the first public key, the encrypted original data are sent to the block chain platform, the block chain platform decrypts the encrypted original data through the first private key of the first asymmetric key, after the decryption is completed, all Internet of things features in the Internet of things feature library are obtained, whether any one of the Internet of things features exists in the data to be identified is judged, if not, the data to be identified is judged to be abnormal data and fed back to the Internet of things data supplier, if yes, the data to be identified is judged to be the Internet of things data, the Internet of things data is analyzed, data attributes are obtained, and the Internet of things data are encrypted through the first public key.
Optionally, the data attribute includes transaction amount, size, data format, generation time, and device type of the data of the internet of things.
Optionally, in step 3, the block chain platform establishes an index based on the internet of things data, writes the index and the data attribute into the block chain, and stores the encrypted internet of things data in the cloud server, specifically:
the block chain platform performs hash calculation on the Internet of things data based on a hash algorithm to obtain a shared data abstract, establishes an index based on the shared data abstract, writes the index, the shared data abstract and data attributes into a block chain, and stores encrypted Internet of things data to a cloud server.
Optionally, in step 4, the internet of things data acquirer block chain platform submits a transaction application, and the block chain platform verifies the internet of things acquirer according to the transaction application, specifically:
and the block chain platform judges whether the account balance is greater than the transaction amount of the data of the internet of things required by the data acquisition party of the internet of things, if so, the verification fails, and if so, the verification passes.
Optionally, in step 5, after the verification is passed, the blockchain platform acquires the internet of things data required by the internet of things acquirer through the index, decrypts the internet of things data, sends the decrypted internet of things data to the internet of things data acquirer, deducts the transaction amount from the account balance of the internet of things data acquirer, and transfers the transaction amount to the account of the internet of things data supplier to finish the transaction, specifically:
after the verification is passed, the blockchain platform generates a second asymmetric key according to second identity information of the internet of things acquirer and sends the second asymmetric key to the internet of things data acquirer, the blockchain platform acquires corresponding internet of things data according to an index of the internet of things data required by the internet of things acquirer and decrypts the internet of things data through the first public key, after decryption is completed, the internet of things data is encrypted through the public key of the second asymmetric key and sent to the internet of things data acquirer, after sending is completed, the transaction amount is deducted from a second account balance of the internet of things data acquirer and transferred to the first account address, and then transaction is completed.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the invention provides a block chain-based Internet of things data transaction method, which comprises the steps that an Internet of things data supply direction block chain platform submits a registration application, the block chain platform performs registration authentication on an Internet of things data supplier according to the registration application, after the authentication is completed, the Internet of things data supply direction block chain platform sends original data, the block chain platform identifies the original data and judges whether the original data is the Internet of things data, if the original data is the Internet of things data, data attributes are obtained according to the Internet of things data and the Internet of things data are encrypted, the block chain platform establishes an index based on the Internet of things data and writes the index and the data attributes into a block chain, the encrypted Internet of things data are stored in a cloud server, the Internet of things data acquisition direction block chain platform submits the transaction application, and the block chain platform verifies the Internet of things acquirer according to the transaction application, after the verification is passed, the block chain platform acquires the Internet of things data required by the Internet of things acquiring party through the index, decrypts the Internet of things data, sends the decrypted Internet of things data to the Internet of things data acquiring party, deducts the transaction amount from the account balance of the Internet of things data acquiring party, and transfers the transaction amount to the account of the Internet of things data supplying party to complete the transaction; the method identifies the data of the Internet of things, can overcome the defect that the data of the Internet of things is difficult to identify in the prior art, and can quickly and accurately identify mass data of the Internet of things; the method realizes transaction sharing of the data of the Internet of things, enables the data of the Internet of things to exert the due value of the data of the Internet of things, and improves the resource utilization rate; in the transaction process of the data of the Internet of things, the data of the Internet of things are all in an encrypted state, so that the data of the Internet of things are prevented from being leaked, and the safety is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic flow chart of a block chain-based data transaction method of the internet of things in the embodiment of the 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.
The invention aims to provide a block chain-based data transaction method of the Internet of things, which can realize transaction sharing of the data of the Internet of things, improve the resource utilization rate, ensure that the data of the Internet of things is not leaked in the transaction process and improve the safety.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a schematic flow chart of a block chain-based data transaction method of the internet of things according to an embodiment of the present invention, and as shown in fig. 1, the block chain-based data transaction method of the internet of things according to the embodiment of the present invention includes the following steps:
step 1: the block chain platform of the data supplier of the Internet of things submits a registration application, and the block chain platform performs registration authentication on the data supplier of the Internet of things according to the registration application;
step 2: after the authentication is finished, the Internet of things data supply direction block chain platform sends original data, the block chain platform identifies the original data and judges whether the original data is the Internet of things data, if the original data is the Internet of things data, data attributes are obtained according to the Internet of things data, and the Internet of things data are encrypted;
and step 3: the block chain platform establishes an index based on the Internet of things data, writes the index and data attributes into a block chain, and stores the encrypted Internet of things data in a cloud server;
and 4, step 4: the method comprises the steps that an Internet of things data acquisition direction blockchain platform submits a transaction application, and the blockchain platform verifies an Internet of things acquirer according to the transaction application;
and 5: after the verification is passed, the block chain platform acquires the Internet of things data required by the Internet of things acquiring party through the index, decrypts the Internet of things data, sends the decrypted Internet of things data to the Internet of things data acquiring party, deducts the transaction amount from the account balance of the Internet of things data acquiring party, and transfers the transaction amount to the account of the Internet of things data supplying party to complete the transaction.
In step 1, the internet of things data supplier block chain platform submits a registration application, and the block chain platform performs registration authentication on the internet of things data supplier according to the registration application, specifically:
the block chain platform generates a first asymmetric key and sends a first public key of the first asymmetric key to the data supplier of the internet of things to finish registration authentication.
In step 2, after the authentication is completed, the internet of things data supply direction blockchain platform sends original data, the blockchain platform identifies the original data, judges whether the original data is internet of things data, and if the original data is internet of things data, obtains data attributes according to the internet of things data and encrypts the internet of things data, specifically:
after the authentication is completed, the Internet of things data supplier encrypts original data through the first public key, the encrypted original data are sent to the block chain platform, the block chain platform decrypts the encrypted original data through the first private key of the first asymmetric key, after the decryption is completed, all Internet of things features in the Internet of things feature library are obtained, whether any one of the Internet of things features exists in the data to be identified is judged, if not, the data to be identified is judged to be abnormal data and fed back to the Internet of things data supplier, if yes, the data to be identified is judged to be the Internet of things data, the Internet of things data is analyzed, data attributes are obtained, and the Internet of things data are encrypted through the first public key.
The internet of things feature library is pre-established and composed of a plurality of internet of things features, and the internet of things features can be fields or information specific to internet of things data, for example, for the internet of vehicles, the internet of things features can be information of entering and exiting a high-speed port, ETC charging information or payment information of a vending machine, and can also be fields corresponding to the information.
Distributed multi-node analysis can be performed according to the characteristics of the internet of things in the internet of things characteristic library, the original data are screened, the data of the internet of things are identified, and the K tree of the characteristics of the internet of things can be formed according to the characteristics of the internet of things in the internet of things characteristic library; and screening out the data of the Internet of things by taking the characteristic K tree of the Internet of things as a screening condition.
The data attributes comprise transaction amount, size, data format, generation time and type of equipment of the data of the Internet of things.
The data attribute can be seen by the data acquirer of the Internet of things, and the data acquirer of the Internet of things acquires the corresponding index according to the data attribute and sends the index to the block chain platform for data acquisition according to the requirement of the data acquirer.
In step 3, the block chain platform establishes an index based on the internet of things data, writes the index and data attributes into the block chain, and stores the encrypted internet of things data in the cloud server, specifically:
the block chain platform performs hash calculation on the Internet of things data based on a hash algorithm to obtain a shared data abstract, establishes an index based on the shared data abstract, writes the index, the shared data abstract and data attributes into a block chain, and stores encrypted Internet of things data to a cloud server.
In step 4, the internet of things data acquirer block chain platform submits a transaction application, and the block chain platform verifies the internet of things acquirer according to the transaction application, specifically:
and the block chain platform judges whether the account balance is greater than the transaction amount of the data of the internet of things required by the data acquisition party of the internet of things, if so, the verification fails, and if so, the verification passes.
In step 5, after the verification is passed, the block chain platform acquires the internet of things data required by the internet of things acquirer through the index, decrypts the internet of things data, sends the decrypted internet of things data to the internet of things acquirer, deducts the transaction amount from the account balance of the internet of things data acquirer, transfers the transaction amount into the account of the internet of things data supplier, and completes the transaction, specifically:
after the verification is passed, the block chain platform generates a second asymmetric key according to the second identity information of the Internet of things acquirer, and the second asymmetric key is sent to the internet of things data acquirer, the block chain platform acquires corresponding internet of things data according to the index of the internet of things data required by the internet of things acquirer, the internet of things data is decrypted through the first public key, and after the decryption is completed, encrypting the data of the Internet of things through a public key of the second asymmetric key, transmitting the encrypted data of the Internet of things to the data acquiring party of the Internet of things, deducting the transaction amount from the balance of a second account of the data acquiring party of the Internet of things after the transmission is finished, and the data is transferred to the first account address to complete the transaction, and the internet of things data obtaining party decrypts the encrypted internet of things data through the private key of the second asymmetric key to obtain the internet of things data.
The invention provides a block chain-based Internet of things data transaction method, which comprises the steps that an Internet of things data supply direction block chain platform submits a registration application, the block chain platform performs registration authentication on an Internet of things data supplier according to the registration application, after the authentication is completed, the Internet of things data supply direction block chain platform sends original data, the block chain platform identifies the original data and judges whether the original data is the Internet of things data, if the original data is the Internet of things data, data attributes are obtained according to the Internet of things data and the Internet of things data are encrypted, the block chain platform establishes an index based on the Internet of things data and writes the index and the data attributes into a block chain, the encrypted Internet of things data are stored in a cloud server, the Internet of things data acquisition direction block chain platform submits the transaction application, and the block chain platform verifies the Internet of things acquirer according to the transaction application, after the verification is passed, the block chain platform acquires the Internet of things data required by the Internet of things acquiring party through the index, decrypts the Internet of things data, sends the decrypted Internet of things data to the Internet of things data acquiring party, deducts the transaction amount from the account balance of the Internet of things data acquiring party, and transfers the transaction amount to the account of the Internet of things data supplying party to complete the transaction; the method identifies the data of the Internet of things, can overcome the defect that the data of the Internet of things is difficult to identify in the prior art, and can quickly and accurately identify mass data of the Internet of things; the method realizes transaction sharing of the data of the Internet of things, enables the data of the Internet of things to exert the due value of the data of the Internet of things, and improves the resource utilization rate; in the transaction process of the data of the Internet of things, the data of the Internet of things are all in an encrypted state, so that the data of the Internet of things are prevented from being leaked, and the safety is improved.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. A block chain-based data transaction method of the Internet of things is characterized by comprising the following steps:
step 1: the block chain platform of the data supplier of the Internet of things submits a registration application, and the block chain platform performs registration authentication on the data supplier of the Internet of things according to the registration application;
step 2: after the authentication is finished, the Internet of things data supply direction block chain platform sends original data, the block chain platform identifies the original data and judges whether the original data is the Internet of things data, if the original data is the Internet of things data, data attributes are obtained according to the Internet of things data, and the Internet of things data are encrypted;
and step 3: the block chain platform establishes an index based on the Internet of things data, writes the index and data attributes into a block chain, and stores the encrypted Internet of things data in a cloud server;
and 4, step 4: the method comprises the steps that an Internet of things data acquisition direction blockchain platform submits a transaction application, and the blockchain platform verifies an Internet of things acquirer according to the transaction application;
and 5: after the verification is passed, the block chain platform acquires the Internet of things data required by the Internet of things acquiring party through the index, decrypts the Internet of things data, sends the decrypted Internet of things data to the Internet of things data acquiring party, deducts the transaction amount from the account balance of the Internet of things data acquiring party, and transfers the transaction amount to the account of the Internet of things data supplying party to complete the transaction.
2. The method for data transaction of the internet of things based on the blockchain as claimed in claim 1, wherein in step 1, the data supplier of the internet of things submits a registration application to the blockchain platform, and the blockchain platform performs registration authentication on the data supplier of the internet of things according to the registration application, specifically:
the block chain platform generates a first asymmetric key and sends a first public key of the first asymmetric key to the data supplier of the internet of things to finish registration authentication.
3. The block chain-based internet of things data transaction method according to claim 2, wherein in step 2, after the authentication is completed, the internet of things data provider sends original data to the block chain platform, the block chain platform identifies the original data and judges whether the original data is internet of things data, if the original data is the internet of things data, a data attribute is obtained according to the internet of things data, and the internet of things data is encrypted, specifically:
after the authentication is completed, the Internet of things data supplier encrypts original data through the first public key, the encrypted original data are sent to the block chain platform, the block chain platform decrypts the encrypted original data through the first private key of the first asymmetric key, after the decryption is completed, all Internet of things features in the Internet of things feature library are obtained, whether any one of the Internet of things features exists in the data to be identified is judged, if not, the data to be identified is judged to be abnormal data and fed back to the Internet of things data supplier, if yes, the data to be identified is judged to be the Internet of things data, the Internet of things data is analyzed, data attributes are obtained, and the Internet of things data are encrypted through the first public key.
4. The block chain based data transaction method of the internet of things, according to claim 3, characterized in that the data attributes comprise transaction amount, size, data format, generation time and type of the device of the internet of things data.
5. The IOT data transaction method based on the blockchain as claimed in claim 4, wherein in the step 3, the blockchain platform establishes an index based on the IOT data, writes the index and data attributes into the blockchain, and stores the encrypted IOT data in the cloud server, specifically:
the block chain platform performs hash calculation on the Internet of things data based on a hash algorithm to obtain a shared data abstract, establishes an index based on the shared data abstract, writes the index, the shared data abstract and data attributes into a block chain, and stores encrypted Internet of things data to a cloud server.
6. The blockchain-based internet of things data transaction method according to claim 5, wherein in step 4, the internet of things data acquirer submits a transaction application to a blockchain platform, and the blockchain platform verifies the internet of things acquirer according to the transaction application, specifically:
and the block chain platform judges whether the account balance is greater than the transaction amount of the data of the internet of things required by the data acquisition party of the internet of things, if so, the verification fails, and if so, the verification passes.
7. The IOT data transaction method based on the blockchain as claimed in claim 6, wherein in the step 5, after the verification is passed, the blockchain platform obtains the IOT data required by the IOT acquirer through the index, decrypts the IOT data, sends the decrypted IOT data to the IOT data acquirer, deducts the transaction amount from the account balance of the IOT data acquirer, and transfers the transaction amount to the account of the IOT data supplier to complete the transaction, specifically:
after the verification is passed, the blockchain platform generates a second asymmetric key according to second identity information of the internet of things acquirer and sends the second asymmetric key to the internet of things data acquirer, the blockchain platform acquires corresponding internet of things data according to an index of the internet of things data required by the internet of things acquirer and decrypts the internet of things data through the first public key, after decryption is completed, the internet of things data is encrypted through the public key of the second asymmetric key and sent to the internet of things data acquirer, after sending is completed, the transaction amount is deducted from a second account balance of the internet of things data acquirer and transferred to the first account address, and then transaction is completed.
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