CN113761057A - Control method for data cross-border flow based on block chain technology - Google Patents
Control method for data cross-border flow based on block chain technology Download PDFInfo
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Abstract
The invention relates to a control method of data cross-border flow based on a block chain technology, which comprises a data cross-border platform and a built cross-border data flow control system, and aims at solving the problems of tradition sampling inspection, all data inspection, historical data traceability, cross-border record tamper resistance, record multiple backup, automatic audit and the like in data cross-border supervision.
Description
Technical Field
The invention relates to the field of application of a block chain, in particular to a control method for data cross-border flow based on a block chain technology.
Background
The block chain is a novel system of computer technologies such as consensus algorithm, distributed storage, point-to-point transmission, encryption algorithm and the like. The method is widely applied to many fields of security trading, electronic commerce, intelligent contracts, Internet of things, social communication, file storage and the like. Current blockchain techniques consist of a string of cryptographically generated data blocks, each block containing a hash value (hash) of the previous block and being guaranteed to be generated after the previous block in time order, starting with a starting block (genetics block) and connecting to the current block, forming a chain of blocks. The consensus algorithm is the core technology of the blockchain. It determines the efficiency and partial security of the blockchain.
Aiming at some problems in data cross-border management and control, such as the problems from traditional sampling inspection to all data inspection, historical data traceability, cross-border record tamper resistance, record multiple backup, automatic auditing and the like, a block chain technology is taken as a novel technology for comprehensive application, and the problems in data cross-border management and control can be well solved by the technical characteristics of distributed consistency, non-tamper resistance and traceability, and the block chain technology is also a development direction of future data cross-border flow management and control. The realization of block chain-based data cross-border management and control is a whole set of system and solution from the bottom layer of the block chain to data acquisition, data analysis, data interaction and data cross-border management and control, and has the problems of poor controllability and the like.
Disclosure of Invention
In view of the above, the present invention provides a method for controlling data cross-border flow based on the blockchain technique, which solves or partially solves the above-mentioned problems;
in order to achieve the effect of the technical steps, the technical steps of the invention are as follows: the control method comprises the steps that a data cross-border platform is established, the data cross-border platform serves as a multi-centralization data interaction platform established on the basis of a block chain technology, the function of the data cross-border platform is set to be not directly transmitted to original cross-border data of an enterprise in the environment, but cross-border index information generated by the original cross-border data uploaded by a data center of the enterprise in the environment is interacted, and multiple backup is carried out on the cross-border index information; the method comprises the steps that a cross-border data flow management and control system is built by using a data cross-border platform, the cross-border data flow management and control system is an application system built on the basis of the data cross-border platform, and a function module of the cross-border data flow management and control system comprises a customs clearance management module, a data verification module and a tax management module of cross-border data; the user of the cross-border data flow management and control system is a data cross-border customs, and the supervision mechanism of the data cross-border customs comprises a network credit office and a network security bureau; the data cross-border customs uses a customs management module of a cross-border data flow management and control system to examine and approve cross-border data under the supervision of a network trust office and a network security bureau, and the physical position of the data cross-border customs is positioned on a firewall between the interior and the exterior; the data cross-border customs carries out spot check and tracing on cross-border data through a spot check tracing module of a cross-border data flow management and control system and collects customs duty of cross-border customs declaration for domestic enterprises through a tax management module of data cross-border application; the cross-border customs data uses a customs clearance management module of a cross-border data flow management and control system to carry out cross-border transmission permission examination and approval on cross-border declaration behaviors of cross-border data of domestic enterprises, and carries out sampling inspection and tax collection on the cross-border data through a sampling inspection tracing module of the cross-border data flow management and control system, the cross-border customs data establishes a compliance type in a data inspection module of the cross-border data flow management and control system, and compliance inspection is carried out on the cross-border data through the data inspection module of the cross-border data flow management and control system; the data acquisition method comprises the steps that a data acquisition party uses an interface of a data cross-border platform to input first acquired data for domestic enterprises, the first acquired data are used for assisting the domestic enterprises with data outbound requirements to acquire road data or vehicle data, the data acquisition party is responsible for cleaning the first acquired data to obtain second acquired data and submitting the second acquired data to the domestic enterprises with the data outbound requirements, and then the domestic enterprises with the data outbound requirements gather the cleaned second acquired data and store the second acquired data in data centers of the domestic enterprises; the data center in the domestic enterprise collects the data needing to be outbound in the second collected data to obtain first cross-border data, and stores the first cross-border data; the method comprises the steps that an domestic enterprise with a data outbound requirement carries out hash value calculation on first cross-border data to obtain a hash value, ownership information of the first cross-border data is added into field description of the first cross-border data, the hash value, the field description and the ownership information are collected to form cross-border index information of the first cross-border data, and the cross-border index information of the first cross-border data is broadcast to domestic nodes of the domestic enterprise of a data cross-border platform and overseas nodes of the overseas enterprise; meanwhile, the data circulation record of the first cross-border data is also subjected to uplink and written into the block of the block chain system, so that the cross-border index information and the data circulation record during uplink can be ensured not to be tampered; the block chain system in the data cross-border platform consists of a plurality of block chain nodes which are physically and logically divided into an intra-environment node of an intra-environment enterprise, an oversea node of an oversea enterprise, an agent node of a cross-border data detection agent company and a management node of a data cross-border customs; the block chain node is a main body for storing cross-environment index information and data flow control and is responsible for executing an intelligent contract in a consensus link; the data nodes are used for performing data cross-border interaction between the domestic nodes of domestic enterprises and the overseas nodes of overseas enterprises, and all cross-border index information and data stream transfer records marked as first cross-border data are stored and synchronized by the block nodes; the data circulation record of the first cross-border data is linked up through a plurality of block chain nodes and written into a block in a block chain system, and at the moment, a multi-backup and coordination mechanism among a plurality of nodes of the block chain system of the data cross-border platform is used for ensuring that the cross-border index information and the data circulation record of the linked up cannot be tampered; the data cross-border platform comprises three or more nodes; the multiple backups of the cross-border index information and the data circulation record of the first cross-border data are stored in the domestic node of the domestic enterprise, the overseas node of the overseas enterprise, the management node and the proxy node in the block chain system of the data cross-border platform; when an domestic enterprise with a data outbound requirement sends a data outbound requirement mark, reporting the data cross-border customs, receiving the data outbound requirement mark by the data cross-border data flow control system, if cross-border transmission permission is carried out on the data outbound requirement mark, transmitting first cross-border data from a data center of the domestic enterprise with the data outbound requirement to a data center of an overseas enterprise directly through a first cross-border transaction user side, and taking data obtained by the data center of the overseas enterprise after the first cross-border data is taken as second cross-border data; after the transmission is finished, the data cross border is used as one-time data cross border, and the tax payment platform in the data cross border platform pays the tax of the data cross border; the block chain node stores the account book data and the intelligent contract code; the method comprises the steps that an internal node of an internal enterprise receives a transaction request initiated by a first cross-border transaction user side, executes an intelligent contract after signature verification, and synchronizes the result to other block chain nodes; all block link points maintain state data and accounts together; the overseas enterprise can check the cross-border index information of the first cross-border data through the second cross-border transmission user side, initiate a request for calling the first cross-border data to the domestic enterprise, initiate purchase of the first cross-border data to the domestic enterprise, and directly complete data retrieval, cross-border transmission, data verification and cost payment; when the domestic enterprise has a data cross-border requirement, packaging cross-border index information corresponding to the first cross-border data through a first cross-border transmission user side to form a customs declaration form, sending the customs declaration form to a customs clearance management module using a cross-border data flow management and control system, and writing a network address of a data center of an overseas node of the overseas enterprise into the customs declaration form; after receiving cross-border index information corresponding to the first cross-border data, the data cross-border customs confirms and records domestic nodes of domestic enterprises through a customs management module of a cross-border data flow management and control system; the internal enterprise finishes tax payment, generates a tax payment certificate through the first cross-border transaction user side, and sends the tax payment certificate to a clearance management module using the cross-border data flow management and control system; after receiving cross-border index information, a customs declaration and a tax payment certificate of the first cross-border data, the data cross-border customs issues cross-border transmission permission for the first cross-border data to an internal enterprise by using a clearance management module of a cross-border data flow management and control system, and the internal enterprise sends the first cross-border data to a data center of an overseas enterprise appointed on the customs declaration through a transmission channel of the data cross-border customs after obtaining the cross-border transmission permission; the data center of the overseas enterprise receives the first cross-border data to serve as second cross-border data, and authenticity verification is conducted on the second cross-border data through the overseas node of the overseas enterprise; the data cross-border customs performs sampling inspection on first cross-border data before or during transmission and after the transmission is finished through a sampling inspection tracing module of a cross-border data flow management and control system, and the sampling inspection compares an obtained hash value with a hash value in cross-border index information during filing through performing hash calculation on the first cross-border data; if the results are the same, the first cross-border data of the cross-border transmission is consistent with the data content of the application submitted by the internal enterprise, otherwise, the violation in the outbound process of the internal enterprise data is judged; the cross-border data detection agent company uses the data cross-border agent module to check the first cross-border data after sampling check, the data cross-border customs uses the data check module of the cross-border data flow control system to check the first cross-border data after sampling check, and the timeliness of the cross-border data can be adjusted by adjusting the proportion of the sampling check before transmission, and the data cross-border customs can execute different data cross-border rules according to policies of different countries or regions; the data cross-border platform is provided with a data cross-border agent module, the data cross-border agent module is operated by a service mechanism with third-party detection qualification, the service mechanism with the third-party detection qualification is a cross-border data detection agent company, and the cross-border data detection agent company helps domestic enterprises to manage and mark first cross-border data through the data cross-border agent module and provides customs declaration and tax payment agent services; the cross-border data detection agent company helps the data cross-border customs to complete data sampling inspection work through the data cross-border agent module, and after the inspection is finished, the result is fed back to the data cross-border customs.
Detailed Description
In order to make the technical problems, technical steps and advantageous effects of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It should be noted that the specific embodiments described herein are only for illustrating the present invention and are not to be construed as limiting the present invention, and products that can achieve the same functions are included in the scope of the present invention. The specific method comprises the following steps:
example 1: the following application scenarios of the control method for data cross-border flow based on the blockchain technology are exemplified as follows: comprises the following steps:
the Data Cross Border Platform (DCBP) is a multicenter Data interaction Platform built on the basis of a block chain technology. The DCBP does not directly transmit the original data of the enterprise, but interacts the cross-border index information of the original data uploaded by each enterprise data center, and forms multiple backups.
The cross-border data flow management and control system is an application system built based on DCBP, a system user comprises management and control mechanisms such as a data cross-border customs, a network credit office and a network security bureau, core functions comprise data cross-border customs clearance management, data verification, tax management and the like, the cross-border data flow management and control system is a necessary management tool for completing data cross-border permission examination and approval, data sampling inspection and tax collection by the data cross-border customs, and is also an important tool for compliance inspection of cross-border data by a network management and control department.
A data acquisition party: the method refers to an enterprise which helps enterprises with data outbound requirements to collect road data or vehicle data. The enterprise is responsible for collecting data, arranging the collected data and submitting the collected data to an enterprise with a data outbound requirement, and summarizing and storing the data by the enterprise.
An enterprise data center: the system refers to enterprises with data outbound requirements, and the enterprises collect and store data delivered by all collectors. Meanwhile, the enterprise calculates and arranges the stored data to form cross-border index information of the data and uploads the cross-border index information to the DCBP, wherein the data which can be exported is marked as cross-border data by the enterprise and forms the cross-border index information. When the domestic enterprise has the data outbound requirement, the domestic enterprise reports the data cross customs, and after permission is obtained, the cross original data is directly transmitted to the overseas enterprise data center from the domestic enterprise data center, and the tax is paid before the transmission is started.
Node within DCBP: the block chain layer of the DCBP is composed of a plurality of nodes, the nodes are a main body for storing cross-border index information and data flow control and are responsible for executing intelligent contracts in a consensus link, and index data and transmission records in all enterprises are stored in the nodes in the DCBP of the enterprises. The node stores the ledger data and the intelligent contract code; the node receives a transaction request initiated by a client, executes an intelligent contract after verifying the signature, and synchronizes the result to other block chain nodes; all block link points maintain state data and accounts together.
DCBP overseas nodes: the method refers to an overseas data node which performs cross-border interaction with an internode. The data nodes store and synchronize cross-border index information and transmission record information of all cross-border data marked as cross-border data, and overseas enterprises can directly complete data retrieval, cross-border transmission, data verification, cost payment and other operations in the DCBP overseas nodes through data transmission clients.
Data cross-border customs: the cross-border data approval mechanism is a mechanism for performing cross-border data approval under the control of a network letter office, a network security bureau of the business and communication department and a pipe bureau. The position of the system is on the fireproof wall between the interior and the exterior, and the system fulfills the functions of cross-border data supervision and management under the authorization of government authorities. The data cross-border customs is responsible for spot check and tracing cross-border data and has the right to charge tax of the cross-border data to enterprises applying the data cross-border application.
(II) cross-border data control process
The specific flow of the intelligent networked automobile data cross-border transmission and management and control is as follows:
(1) the data acquisition party sorts the acquired original data and transmits the sorted data to the domestic enterprise data center;
(2) the domestic enterprise data center processes the original data after receiving the original data according to the DCBP standard, generates cross-border index information of the data, uploads the cross-border index information to the DCBP node of the domestic enterprise data center, and broadcasts the cross-border index information to other nodes of the DCBP after the DCBP node records the cross-border index information. The original data can be confirmed according to the cross-border index information by adding the data ownership information in the cross-border index information. Meanwhile, the transmission record of data is also uplink and written into the block. Therefore, by using a multiple backup and coordination mechanism among the blockchain nodes, the cross-border index information and the data transmission record of the uplink can be ensured not to be tampered;
(3) the overseas enterprise owns the DCBP overseas node and accesses the DCBP. After the enterprise data center broadcasts the cross-border index information of the data, the cross-border index information of the data capable of crossing the border is synchronized to the DCBP overseas node;
(4) overseas enterprises can check the data index through the data transmission user side and initiate a transmission request to the domestic enterprises;
(5) when an domestic enterprise obtains a data cross-border requirement, only data cross-border index information corresponding to original data needs to be combed out and packaged to form a 'customs declaration form', the 'customs declaration form' is sent to a data cross-border customs, and a network address of an overseas data receiving node is written in the 'customs declaration form';
(6) after receiving the cross-border index information of the cross-border data, the data cross-border customs confirms and records the cross-border index information through a DCBP (data communication protocol back propagation) internal node;
(7) the enterprise finishes paying tax, and sends a tax paying certificate to the cross-border customs;
(8) the cross-border customs issues cross-border transmission permission for the data to the enterprise after receiving cross-border index information, a customs declaration form and a tax payment certificate of the cross-border data, and the enterprise sends the data to an overseas data node designated on the customs declaration form through a transmission channel of the cross-border customs after obtaining the permission;
(9) after the overseas enterprise data center receives the cross-border original data, the data can be subjected to authenticity verification through the DCBP overseas node;
(10) the data cross-border customs may sample the transmitted data before transmission or after a period of time has elapsed after transmission. The sampling inspection can be performed by performing hash calculation on cross-border original data, and the obtained hash value is compared with cross-border index information during filing. If the results are the same, the original data transmitted across the border is consistent with the data content submitted by the enterprise, otherwise, the enterprise is suspected to be illegal. After the data consistency is confirmed, the compliance check of the original data can be carried out.
In addition, in order to improve the overall service efficiency, three-party service mechanisms such as a data cross-border agent company, a cross-border data detection company (with third-party detection qualification) and the like can be introduced, and the cross-border agent company can help domestic enterprises to use DCBP more efficiently, help to manage and label data and provide customs declaration and tax payment agent services; and the cross-border data detection company helps the cross-border customs to complete data sampling inspection work, and feeds back the result to the cross-border customs after the inspection is finished.
The control method comprises the steps that a data cross-border platform is established, the data cross-border platform serves as a multi-centralization data interaction platform established on the basis of a block chain technology, the data cross-border platform is set to not directly transmit original data of an enterprise in the environment, cross-border index information generated by the original data uploaded by a data center of the enterprise in the environment is interacted, and multiple backup is conducted on the cross-border index information;
the method comprises the steps that a cross-border data flow management and control system is built by using a data cross-border platform, the cross-border data flow management and control system is an application system built on the basis of the data cross-border platform, and a function module of the cross-border data flow management and control system comprises a customs clearance management module, a data verification module and a tax management module of cross-border data; the user of the cross-border data flow management and control system is a data cross-border customs, and a management and control mechanism of the data cross-border customs comprises a network credit office and a network security bureau; the data cross-border customs uses a functional module of a cross-border data flow control system to examine and approve the cross-border data under the control of a network letter office and a network security bureau, and the physical position of the data cross-border customs is positioned on a fireproof wall between the interior and the exterior;
the cross-border customs data carries out spot check and tracing on cross-border data through a spot check tracing module of a cross-border data flow management and control system and is entitled to charge a cross-border customs declaration to an intra-enterprise which provides a data cross-border application;
the data cross-border customs uses a customs clearance management module of a cross-border data flow control system to carry out permission examination and approval on cross-border declaration behaviors of cross-border data of domestic enterprises, and carries out sampling inspection and tax charge on the cross-border data through a sampling inspection tracing module of the cross-border data flow control system, the data cross-border customs establishes a compliance type in a data inspection module of the cross-border data flow control system, and compliance inspection is carried out on the cross-border data through the data inspection module of the cross-border data flow control system;
the data acquisition method comprises the steps that a data acquisition party uses an interface of a data cross-border platform to input first acquired data for domestic enterprises, the first acquired data are used for assisting the domestic enterprises with data outbound requirements to acquire road data or vehicle data, the data acquisition party is responsible for cleaning the first acquired data to obtain second acquired data and submitting the second acquired data to the domestic enterprises with the data outbound requirements, and then the domestic enterprises with the data outbound requirements gather the cleaned second acquired data and store the second acquired data in data centers of the domestic enterprises;
the data center in the domestic enterprise collects the data needing to be outbound in the second collected data to obtain first cross-border data, and stores the first cross-border data;
meanwhile, the domestic enterprise with the data outbound requirement carries out hash value calculation on the first cross-border data through a first cross-border transaction user side in the data cross-border platform; summarizing field description and ownership information of the first cross-border data to form cross-border index information of the first cross-border data, and broadcasting the cross-border index information of the first cross-border data to an internal node and an external node of the data cross-border platform;
the block chain system in the data cross-border platform consists of a plurality of block chain nodes which comprise an intra-environment node of an intra-environment enterprise, an oversea node of an oversea enterprise, an agent node of a cross-border data detection agent company and a management node of a data cross-border customs; the block chain node is a main body participating in transaction and is responsible for executing intelligent contracts in the consensus link; the data nodes for the data cross-border interaction between the domestic nodes of domestic enterprises and the overseas nodes of overseas enterprises, the block link nodes save and synchronize all cross-border index information and data stream transfer records marked as cross-border,
meanwhile, an intra-enterprise with a data outbound requirement calculates and arranges the cross-border index information of the first cross-border data through a second cross-border transaction user side in the data cross-border platform, uploads the cross-border index information of the first cross-border data to a block chain node, and broadcasts the block chain node to other block chain nodes in a main chain cluster in the data cross-border platform after recording;
after ownership information of the first cross-border data is added into the cross-border index information of the first cross-border data, the data cross-border platform can perform ownership confirmation on the first cross-border data according to the cross-border index information; meanwhile, the data circulation record of the first cross-border data is also uploaded into the block chain system and written into the block chain node, so that the uplink ownership information, the cross-border index information and the data circulation record can not be tampered;
the enterprise marks the outbound data in the first cross-border data as first cross-border data and forms cross-border index information, after ownership information of the first cross-border data is added into field description of the first cross-border data, the authorization module of the data cross-border platform authenticates the first cross-border data according to the cross-border index information, meanwhile, circulation records of the first cross-border data are linked up through block chain nodes and written into blocks in a block chain system, and at the moment, a multi-backup and coordination mechanism among multiple nodes of the block chain system of the data cross-border platform is used for ensuring that the linked-up cross-border index information, transaction records and data records cannot be tampered;
when an domestic enterprise with a data outbound requirement sends a data outbound requirement mark, reporting the data cross-border customs, receiving the data outbound requirement mark by the data cross-border customs through a cross-border data flow control system, if the data outbound requirement mark is permitted, transmitting first cross-border data from a data center of the domestic enterprise with the data outbound requirement to a data center of an overseas enterprise directly through a first cross-border transaction user side, and enabling the data center of the overseas enterprise to obtain data after the first cross-border data to be second cross-border data; after the transmission is finished, the transaction is used as a transaction, and the tax payment of the transaction is paid through a tax return platform in the data cross-border platform; multiple backups are carried out on cross-border index information and circulation records during transaction through the data cross-border platform; the multiple backups are completed by the data cross-border platform through the internal nodes and the external nodes of the data platform; the internal nodes and the external nodes in the data cross-border platform store multiple backups of cross-border index information and data flow records of all corresponding enterprises;
the block chain node stores the account book data and the intelligent contract code; the internal node receives a transaction request initiated by a first cross-border transaction user side, executes an intelligent contract after verifying the signature, and synchronizes the result to other block chain nodes; all block link points maintain state data and accounts together;
the overseas enterprise can directly complete data retrieval, transaction initiation, data verification and fee payment in the overseas nodes in the data cross-border platform through the second cross-border transaction user terminal;
the overseas enterprise has an overseas node of the data cross-border platform; after the data center of the overseas enterprise broadcasts the cross-border index information of the data, the cross-border index information of the data and the data stream transfer record can be synchronized to the overseas nodes of the data cross-border platform;
the overseas enterprise can check the cross-border index information of the first cross-border data through the second cross-border transaction user side, initiate a request for calling the first cross-border data to the domestic enterprise, and initiate purchase of the first cross-border data to the domestic enterprise;
when an intra-enterprise obtains an order and has a data cross-border requirement, cross-border index information corresponding to first cross-border data is packaged through a first cross-border transaction user side to form a customs declaration form, the customs declaration form is sent to a customs clearance management module using a cross-border data flow management and control system, and a network address of an overseas data receiving node where an overseas enterprise is located is written in the customs declaration form;
after receiving cross-border index information corresponding to the first cross-border data, the data cross-border customs confirms and records the interior nodes through a customs management module of a cross-border data flow management and control system;
the internal enterprise finishes tax payment, generates a tax payment certificate through the first cross-border transaction user side, and sends the tax payment certificate to a clearance management module using the cross-border data flow management and control system;
after receiving a data index, a customs declaration and a tax payment certificate of first cross-border data, the data cross-border customs issues cross-border transmission permission for the first cross-border data to an internal enterprise by using a clearance management module of a cross-border data flow management and control system, and the internal enterprise sends the first cross-border data to a data center of an external enterprise appointed on the customs declaration through a transmission channel of the data cross-border customs after obtaining the cross-border transmission permission; the data center of the overseas enterprise receives the first cross-border data to serve as second cross-border data, and authenticity verification is conducted on the second cross-border data through the overseas node of the data cross-border platform;
the data cross-border customs performs sampling inspection on the transmitted first cross-border data through a sampling inspection tracing module of a cross-border data flow management and control system, the sampling inspection can be performed through performing Hash calculation on the first cross-border data, and an obtained Hash value is compared with a Hash value in cross-border index information during filing; if the results are the same, the first cross-border data of the cross-border transmission is consistent with the data content of the application submitted by the internal enterprise, otherwise, the violation in the outbound process of the internal enterprise data is judged; finally, the cross-border agent can also use a data cross-border agent module to check the first cross-border data after verification, and the data cross-border customs can also use a data check module of the cross-border data flow control system to check the first cross-border data after verification; by adjusting the proportion of sampling inspection before transmission, the timeliness of cross-border data can be adjusted, and in specific management and control, different data cross-border policies can be implemented by a network office and a network security bureau aiming at different countries or regions.
The data cross-border platform is provided with a data cross-border agent module, the data cross-border agent module is operated by a service mechanism with third-party detection qualification, the service mechanism with the third-party detection qualification is a cross-border data detection agent company, and the cross-border data detection agent company helps domestic enterprises to manage and mark first cross-border data through the data cross-border agent module and provides customs declaration and tax payment agent services; the cross-border data detection agent company helps the data cross-border customs to complete data sampling inspection work through the data cross-border agent module, and after the inspection is finished, the result is fed back to the data cross-border customs.
Has the advantages that: the invention aims at the problems of traditional sampling inspection, traceability of historical data, cross-border record tamper resistance, record multiple backup, automatic audit and the like in data cross-border management and control, and a block chain technology is used as a novel technology for comprehensive application and can well solve the problems in data cross-border management and control by virtue of the technical characteristics of distributed consistency, non-tamper and traceability.
Claims (1)
1. A control method for data cross-border flow based on block chain technology comprises the following steps:
the control method comprises the steps that a data cross-border platform is established, the data cross-border platform serves as a multi-centralization data interaction platform established on the basis of a block chain technology, the functions of the data cross-border platform are set to be cross-border index information generated by original cross-border data uploaded by a data center of an enterprise in an interaction environment instead of directly transmitting the original cross-border data of the enterprise in the interaction environment, and multiple backup is carried out on the cross-border index information; the data cross-border platform is used for building a cross-border data flow management and control system, the cross-border data flow management and control system is an application system built on the basis of the data cross-border platform, and functional modules of the cross-border data flow management and control system comprise a customs clearance management module, a data verification module and a tax management module of cross-border data; the user of the cross-border data flow management and control system is a data cross-border customs, and the supervision mechanism of the data cross-border customs comprises a network credit office and a network security bureau; the data cross-border customs uses a customs management module of a cross-border data flow management and control system to examine and approve cross-border data under the supervision of a network trust office and a network security bureau, and the physical position of the data cross-border customs is positioned on a firewall between the interior and the exterior; the data cross-border customs carries out spot check and tracing on cross-border data through a spot check tracing module of a cross-border data flow management and control system and collects customs duty of cross-border customs declaration for domestic enterprises through a tax management module of data cross-border application; the data cross-border customs uses a customs clearance management module of the cross-border data flow management and control system to carry out cross-border transmission permission examination and approval on cross-border declaration behaviors of cross-border data of domestic enterprises, and carries out sampling inspection and tax collection on the cross-border data through a spot inspection tracing module of the cross-border data flow management and control system, the data cross-border customs establishes a compliance type in a data inspection module of the cross-border data flow management and control system, and carries out compliance inspection on the cross-border data through the data inspection module of the cross-border data flow management and control system; the data acquisition method comprises the steps that a data acquisition party uses an interface of a data cross-border platform to input first acquired data for an in-home enterprise, the first acquired data are used for assisting the in-home enterprise with a data outbound requirement to acquire road data or vehicle data, the data acquisition party is responsible for cleaning the first acquired data to obtain second acquired data and submitting the second acquired data to the in-home enterprise with the data outbound requirement, and then the in-home enterprise with the data outbound requirement collects the cleaned second acquired data and stores the second acquired data in a data center of the in-home enterprise; the data center in the domestic enterprise collects the data needing to be outbound in the second collected data to obtain first cross-border data, and stores the first cross-border data; the method comprises the steps that an intra-enterprise with a data outbound requirement carries out hash value calculation on first cross-border data to obtain a hash value, ownership information of the first cross-border data is added into field description of the first cross-border data, the hash value, the field description and the ownership information are collected to form cross-border index information of the first cross-border data, and the cross-border index information of the first cross-border data is broadcast to intra-nodes of the intra-enterprise and extra-nodes of the extra-enterprise of a data cross-border platform; meanwhile, the data circulation record of the first cross-border data is also subjected to uplink and written into the block of the block chain system, so that the cross-border index information and the data circulation record during uplink can be ensured not to be tampered; the block chain system in the data cross-border platform consists of a plurality of block chain nodes which are physically and logically divided into an intra-environment node of an intra-environment enterprise, an oversea node of an oversea enterprise, an agent node of a cross-border data detection agent company and a management node of a data cross-border customs; the block chain node is a main body for storing cross-environment index information and data flow control and is responsible for executing an intelligent contract in a consensus link; the data nodes are used for performing data cross-border interaction between the domestic nodes of domestic enterprises and the overseas nodes of overseas enterprises, and all cross-border index information and data stream transfer records marked as first cross-border data are stored and synchronized by the block nodes; the data circulation record of the first cross-border data is linked up through a plurality of block chain nodes and is written into a block in a block chain system, and at the moment, a multi-backup and coordination mechanism among a plurality of nodes of the block chain system of the data cross-border platform is used for ensuring that the cross-border index information and the data circulation record of the linked up cannot be tampered; the data cross-border platform comprises three or more nodes; the multiple backups of the cross-border index information and the data circulation record of the first cross-border data are stored in the domestic node of the domestic enterprise, the overseas node of the overseas enterprise, the management node and the proxy node in the block chain system of the data cross-border platform; when an domestic enterprise with a data outbound requirement sends a data outbound requirement mark, reporting the data cross-border customs, receiving the data outbound requirement mark by the data cross-border data flow control system, if cross-border transmission permission is performed on the data outbound requirement mark, transmitting first cross-border data from a data center of the domestic enterprise with the data outbound requirement to a data center of an overseas enterprise directly through a first cross-border transaction user end, and taking data obtained by the data center of the overseas enterprise after the first cross-border data is taken as second cross-border data; after the transmission is finished, the data cross border is used as one-time data cross border, and the tax payment platform in the data cross border platform pays the tax of the data cross border; the block chain node stores the account book data and the intelligent contract code; the method comprises the steps that an internal node of an internal enterprise receives a transaction request initiated by a first cross-border transaction user side, executes an intelligent contract after signature verification, and synchronizes the result to other block chain nodes; all block link points maintain state data and accounts together; the overseas enterprise can check the cross-border index information of the first cross-border data through the second cross-border transmission user side, initiate a request for calling the first cross-border data to the domestic enterprise, initiate purchase of the first cross-border data to the domestic enterprise, and directly complete data retrieval, cross-border transmission, data verification and cost payment; when the domestic enterprise has a data cross-border requirement, packaging cross-border index information corresponding to the first cross-border data through a first cross-border transmission user side to form a customs declaration form, sending the customs declaration form to a customs clearance management module using the cross-border data flow management and control system, and writing a network address of a data center of an overseas node of the overseas enterprise into the customs declaration form; after receiving cross-border index information corresponding to the first cross-border data, the data cross-border customs confirms and records an intra-node of an intra-enterprise by using a customs management module of the cross-border data flow management and control system; the internal enterprise finishes tax payment, generates a tax payment certificate through the first cross-border transaction user side, and sends the tax payment certificate to a clearance management module using the cross-border data flow management and control system; after receiving cross-border index information, a customs declaration and a tax payment certificate of first cross-border data, the data cross-border customs issues cross-border transmission permission for the first cross-border data to an internal enterprise by using a clearance management module of the cross-border data flow management and control system, and the internal enterprise sends the first cross-border data to a data center of an overseas enterprise appointed on the customs declaration through a transmission channel of the data cross-border customs after obtaining the cross-border transmission permission; the data center of the overseas enterprise receives the first cross-border data to serve as second cross-border data, and authenticity verification is conducted on the second cross-border data through the overseas node of the overseas enterprise; the data cross-border customs performs sampling inspection on first cross-border data before or during transmission and after the transmission is finished through a sampling inspection tracing module of a cross-border data flow management and control system, and the sampling inspection compares an obtained hash value with a hash value in cross-border index information during filing through performing hash calculation on the first cross-border data; if the results are the same, the first cross-border data of the cross-border transmission is consistent with the data content of the application submitted by the internal enterprise, otherwise, the violation in the outbound process of the internal enterprise data is judged; the cross-border data detection agent company uses the data cross-border agent module to check the first cross-border data after sampling check, the data cross-border customs uses the data check module of the cross-border data flow management and control system to check the first cross-border data after sampling check, and the timeliness of the cross-border data can be adjusted by adjusting the proportion of the sampling check before transmission, and the data cross-border customs can execute different data cross-border rules according to policies of different countries or regions; the data cross-border platform is provided with a data cross-border agent module, the data cross-border agent module is operated by a service mechanism with third-party detection qualification, the service mechanism with the third-party detection qualification is a cross-border data detection agent company, the cross-border data detection agent company helps domestic enterprises to manage and mark first cross-border data through the data cross-border agent module, and customs declaration and tax payment agent services are provided; the cross-border data detection agent company helps the data cross-border customs to complete data sampling inspection work through the data cross-border agent module, and after the inspection is finished, the result is fed back to the data cross-border customs.
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