CN112800457A - Sensitive information supervision method and system for block chain network - Google Patents
Sensitive information supervision method and system for block chain network Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G06F40/00—Handling natural language data
- G06F40/20—Natural language analysis
- G06F40/279—Recognition of textual entities
- G06F40/289—Phrasal analysis, e.g. finite state techniques or chunking
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/30—Semantic analysis
Abstract
The invention discloses a sensitive information supervision method and a system for a block chain network, wherein in the method, a node of the supervised block chain network sends a sensitive information detection request to a supervision system before executing a chain-linking action of transaction data, and determines whether to execute the chain-linking action or not according to the detection result response of the supervision system to the transaction data; and if the detection result response indicates that the transaction data contains sensitive information, canceling the execution of the uplink action, and reporting the transaction data to a monitoring system to record violation content after canceling the execution of the uplink action. Therefore, the invention realizes the sensitive information supervision of the block chain network through an independent supervision system, not only can reduce the operation burden of the nodes, but also can achieve the aim of comprehensive supervision.
Description
Technical Field
The present invention relates to a block chain technology, and in particular, to a method and a system for monitoring sensitive information in a block chain network.
Background
The block chain technology has the characteristics of being incapable of being forged, leaving marks in the whole process, being traceable, transparent in disclosure, collective in maintenance and the like, and based on the characteristics, the block chain technology establishes a solid trust foundation, creates a reliable cooperation mechanism, and has wide application prospects in the fields of finance, Internet of things, public service and the like. However, the current regulatory system for uplink data of blockchains is not robust enough, and if some sensitive information, such as illegal violation and user privacy information, is written into blockchains, the sensitive information will be exposed to the public. Therefore, it is necessary to perform sensitive information detection before data uplink and to perform timely shielding or intervention to prevent sensitive information from being written into the blockchain and exposed to public view.
Chinese patent application CN111343142A discloses a data processing method based on a blockchain network, which applies nodes of the blockchain network and filters text information in target transaction data by using a sensitive word filter library to determine whether the target transaction data includes sensitive information, and if the target transaction data includes sensitive information, refuses to write the target transaction data into the blockchain. Because the method directly utilizes the nodes of the block chain network to filter the sensitive words, on one hand, the method brings operation burden to the nodes, and on the other hand, the method for filtering the sensitive words among the nodes of the block chain network is an independent process and does not achieve the aim of comprehensive supervision.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention aims to: the sensitive data supervision method for the block chain network is provided, the operation burden of the nodes can be reduced, and the purpose of comprehensive supervision can be achieved.
In order to achieve the purpose, the invention provides the following technical scheme:
a sensitive information supervision method for a block chain network is applied to a node of the block chain network and comprises the following steps:
before executing the uplink transaction data action, sending a sensitive information detection request to a monitoring system, and determining whether to execute the uplink action or not according to the detection result response of the monitoring system to the transaction data; if the detection result response indicates that the transaction data contains sensitive information, canceling the uplink action;
and after the uplink action is cancelled, reporting the transaction data to the monitoring system to record violation content.
According to a specific implementation mode, the method is used for the sensitive information supervision method of the block chain network, and the sensitive information detection request comprises an Apkey and a signature; wherein the Appkey is distributed by the supervisory system to the registered blockchain, the signature being generated based on a node private key of the blockchain network.
According to a specific implementation mode, the sensitive information supervision method for the blockchain network comprises the following steps: sending a heartbeat detection request to a monitoring system, and receiving a heartbeat detection result response of the monitoring system; and if the heartbeat detection result responds to the indication node disconnection, stopping executing the uplink action.
According to a specific implementation mode, the method is used for monitoring the sensitive information of the block chain network, and is used for receiving a polling instruction sent by a monitoring system and sending a polling request to the monitoring system according to the polling instruction so as to realize the sensitive information detection of each block data on the block chain;
receiving a control instruction issued by the monitoring system, and shielding block data containing sensitive information on a block chain according to the control instruction; wherein the control instruction is determined according to a detection result of sensitive information of each block data on the block chain.
In another aspect of the present invention, there is also provided a block link point apparatus, including:
the request module is used for sending a sensitive information detection request to the monitoring system before the uplink action of the transaction data is executed;
the acquisition module is used for acquiring the detection result response of the monitoring system to the transaction data;
the uplink action control module is used for determining whether to execute the uplink action according to the detection result response of the monitoring system to the transaction data; if the detection result response indicates that the transaction data contains sensitive information, canceling the uplink action;
and the reporting module is used for reporting the transaction data to the monitoring system after the uplink action is cancelled so as to record violation content.
According to a specific embodiment, in the block link node device of the present invention, the sensitive information detection request sent by the request module includes an app key and a signature; wherein the Appkey is distributed by the supervisory system to the registered blockchain, the signature being generated based on a node private key of the blockchain network.
According to a specific embodiment, in the block link point device of the present invention, the request module is further configured to send a heartbeat detection request to a monitoring system;
the acquisition module is used for acquiring the heartbeat detection result response of the monitoring system;
the uplink action control module is used for controlling uplink actions according to the heartbeat detection result response of the monitoring system; and if the heartbeat detection result responds to the indication node disconnection, stopping executing the uplink action.
According to a specific embodiment, the block link point device of the present invention further comprises a block data masking module; furthermore, it is possible to provide a liquid crystal display device,
the acquisition module is used for routing inspection instructions and management and control instructions issued by the monitoring system; wherein the management and control instruction is generated by the supervision system according to the sensitive information detection result of each block data on the block chain;
the request module is used for sending an inspection request to the monitoring system according to the inspection instruction so as to realize sensitive information detection of each block data on the block chain;
and the block data shielding module is used for shielding the block data containing the sensitive information on the block chain according to the control instruction.
In another aspect of the present invention, there is also provided a sensitive information monitoring system for a blockchain network, including: a supervisory system, and at least one blockchain network supervised by the supervisory system; moreover, when the supervision system interacts with each supervised node of the blockchain network, the sensitive information supervision method for the blockchain network is realized.
In another aspect of the present invention, a computer storage medium is further provided, which stores program instructions that, when executed, implement the method for monitoring sensitive information in a blockchain network according to the present invention.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a sensitive information supervision method for a block chain network.A node of the supervised block chain network sends a sensitive information detection request to a supervision system before executing a chain linking action of transaction data, and determines whether to execute the chain linking action according to the detection result response of the supervision system to the transaction data; and if the detection result response indicates that the transaction data contains sensitive information, canceling the execution of the uplink action, and reporting the transaction data to a monitoring system to record violation content after canceling the execution of the uplink action. Therefore, the invention realizes the sensitive information supervision of the block chain network through an independent supervision system, not only can reduce the operation burden of the nodes, but also can achieve the aim of comprehensive supervision.
Drawings
FIG. 1 is a schematic diagram of a monitoring system according to the present invention;
FIG. 2 is a schematic structural view of a block link point apparatus of the present invention;
fig. 3 is a schematic diagram illustrating an interaction flow between a blockchain network and a supervisory system according to the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
As shown in fig. 1, the sensitive information monitoring system for a blockchain network of the present invention includes: a supervision system 200, and a blockchain network 101, a blockchain network 102 supervised by the supervision system. Moreover, the supervision system 200 implements supervision of sensitive information by interacting with nodes of each supervised blockchain network.
In the invention, the monitoring system 200 mainly provides online sensitive information analysis and identification service, and can realize sensitive information analysis and identification of transaction data generated in a blockchain network by configuring a sensitive information filtering library (comprising sensitive keywords, sensitive information characteristics and the like) and an identification algorithm (such as semantic identification, fuzzy matching and the like); for the means for realizing the sensitive information analysis and identification, the adjustment or the improvement can be carried out according to the content, the data form and the like of the transaction data of the chain under supervision, and the details are not repeated here.
Specifically, taking a block link point 1011 in the block link network 101 as an example, before performing a chain uplink operation on transaction data, the block link point 1011 sends a sensitive information detection request to the monitoring system 200, and determines whether to perform the chain uplink operation according to a detection result response of the monitoring system 200 to the transaction data; if the detection result response indicates that the transaction data contains sensitive information, canceling the uplink action; and after the uplink action is cancelled, reporting the transaction data to the supervision system 200 to record violation content.
As shown in fig. 2, the method for supervising sensitive information in a blockchain network according to the present invention is further illustrated by taking the full flow of supervised chain registration and sensitive information detection as an example based on the system architecture shown in fig. 1.
The supervised chain is accessed to the supervision system 200, and after registration and approval, the rear part can have the authority to interact with the supervision system 200. Namely, a manual application registration channel provides information such as a server public network IP address, a service request URL (domain name: port number or IP: port number), a public key of a block link point and the like.
After the registration approval is passed, the monitoring system 200 generates a corresponding app key and allocates the app key to the registered blockchain. Specifically, the monitoring system 200 performs access control in a manner of app + signature, and may also confirm an access entry of the monitored chain in a manner of setting an IP white list.
To ensure that the supervisory system 200 is able to fully supervise the chain of custody, a heartbeat mechanism is also established between the supervisory system 200 and the chain of custody. That is, the node of the block chain needs to periodically send a heartbeat detection request to the monitoring system 200, and receive a heartbeat detection result response of the monitoring system 200; if the heartbeat detection result responds to the indication node disconnection, the uplink operation is suspended. Therefore, sensitive information detection of some transaction data can be avoided from being missed due to disconnection of the block chain node and the monitoring system.
Before executing a business data uplink action, sending a sensitive information detection request to a monitoring system 200, and determining whether to execute the uplink action according to a detection result response of the monitoring system 200 to the business data; and if the detection result response indicates that the transaction data contains sensitive information, canceling the uplink. Specifically, the sensitive information detection request comprises an app key and a signature; wherein the Appkey is distributed by the supervisory system to the registered blockchain, the signature being generated based on a node private key of the blockchain network.
Maintenance updates, such as updates to the sensitive information filter base or optimization of the recognition algorithm, are performed from time to time in view of the sensitive information analysis and recognition services provided by the regulatory system 200. Therefore, the invention realizes the polling of all the block data on the monitored block chain by issuing the polling command through the monitoring system 200, and avoids certain sensitive information which cannot be identified before maintenance and update from being written into the block chain.
Specifically, the block link point 1011 receives the polling instruction issued by the monitoring system 200, and sends a polling request to the monitoring system 200 according to the polling instruction, so as to detect the sensitive information of each block data on the block chain. Meanwhile, the block link point 1011 receives a control instruction issued by the monitoring system 200, and masks or filters the block data containing the sensitive information on the block chain according to the control instruction. The management and control instruction issued by the monitoring system 200 is generated by the monitoring system according to the detection result of the sensitive information of each block data on the block chain. In practice, the block link point 1011 masks or filters the block data in the following manner: block data is prohibited from being queried or called.
Meanwhile, after the block link point 1011 masks or filters the corresponding block data, the illegal transaction content containing the sensitive information is also reported to the monitoring system 200. In order to avoid frequent polling requests of the supervision system, which causes the supervised blockchain network to consume a large amount of resources for responding to the polling instruction, a threshold value is set on a node of the supervised blockchain network, and only one active polling task is received at most within the threshold value time.
When the routing inspection task is executed on the node of the supervised block chain network, the quantity of block data needing sensitive information detection is configured through yml; if some block data detection fails in the polling task, timing processing is performed on the block data with the detection failure, and after all the block data of the block chain are processed, a message of the completion of the execution of the polling task is fed back to the monitoring system 200.
As shown in fig. 3, in another aspect of the present invention, there is also provided a block link point apparatus 1011 including:
the request module is used for sending a sensitive information detection request to the monitoring system before the uplink action of the transaction data is executed;
the acquisition module is used for acquiring the detection result response of the monitoring system to the transaction data;
the uplink action control module is used for determining whether to execute the uplink action according to the detection result response of the monitoring system to the transaction data; if the detection result response indicates that the transaction data contains sensitive information, canceling the uplink action;
and the reporting module is used for reporting the transaction data to the monitoring system after the uplink action is cancelled so as to record violation content.
Further, the sensitive information detection request sent by the request module comprises an Appkey and a signature; wherein the Appkey is distributed by the supervisory system to the registered blockchain, the signature being generated based on a node private key of the blockchain network.
In one embodiment, the request module is further configured to send a heartbeat detection request to a monitoring system; the acquisition module is used for acquiring the heartbeat detection result response of the monitoring system; the uplink action control module is used for controlling uplink actions according to the heartbeat detection result response of the monitoring system; and if the heartbeat detection result responds to the indication node disconnection, stopping executing the uplink action.
In one embodiment, the obtaining module is configured to send a polling instruction and a control instruction to the monitoring system; wherein the management and control instruction is generated by the supervision system according to the sensitive information detection result of each block data on the block chain; the request module is used for sending an inspection request to the monitoring system according to the inspection instruction so as to realize sensitive information detection of each block data on the block chain; and the uplink action control module is used for carrying out shielding operation or filtering operation on the block data containing the sensitive information on the block chain according to the control instruction.
In another aspect of the present invention, a computer storage medium is further provided, which stores program instructions that, when executed, implement the method for monitoring sensitive information in a blockchain network according to the present invention.
It should be understood that the disclosed system may be implemented in other ways. For example, the division of the modules into only one logical function may be implemented in another way, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the communication connection between the modules may be an indirect coupling or communication connection through some interfaces, devices or units, and may be electrical or in other forms.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Claims (10)
1. A sensitive information supervision method for a block chain network is applied to a node of the block chain network, and comprises the following steps:
before executing the uplink transaction data action, sending a sensitive information detection request to a monitoring system, and determining whether to execute the uplink action or not according to the detection result response of the monitoring system to the transaction data; if the detection result response indicates that the transaction data contains sensitive information, canceling the uplink action;
and after the uplink action is cancelled, reporting the transaction data to the monitoring system to record violation content.
2. The sensitive information monitoring method for the blockchain network according to claim 1, wherein the sensitive information detection request comprises an Appkey and a signature; wherein the Appkey is distributed by the supervisory system to the registered blockchain, the signature being generated based on a node private key of the blockchain network.
3. The method of claim 1 for policing sensitive information for a blockchain network, further comprising: sending a heartbeat detection request to a monitoring system, and receiving a heartbeat detection result response of the monitoring system; and if the heartbeat detection result responds to the indication node disconnection, stopping executing the uplink action.
4. The method for monitoring the sensitive information of the blockchain network according to any one of claims 1 to 3, wherein a patrol inspection instruction issued by the monitoring system is received, and a patrol inspection request is sent to the monitoring system according to the patrol inspection instruction, so as to realize the sensitive information detection of each block data on the blockchain;
receiving a control instruction issued by the monitoring system, and shielding block data containing sensitive information on a block chain according to the control instruction; wherein the management and control instruction is generated by the supervisory system according to the sensitive information detection result of each block data on the block chain.
5. A block link point apparatus, comprising:
the request module is used for sending a sensitive information detection request to the monitoring system before the uplink action of the transaction data is executed;
the acquisition module is used for acquiring the detection result response of the monitoring system to the transaction data;
the uplink action control module is used for determining whether to execute the uplink action according to the detection result response of the monitoring system to the transaction data; if the detection result response indicates that the transaction data contains sensitive information, canceling the uplink action;
and the reporting module is used for reporting the transaction data to the monitoring system after the uplink action is cancelled so as to record violation content.
6. The block-link node device of claim 5, wherein the sensitive information detection request issued by the request module includes an Appkey and a signature; wherein the Appkey is distributed by the supervisory system to the registered blockchain, the signature being generated based on a node private key of the blockchain network.
7. The block link point device of claim 5, wherein the request module is further to issue a heartbeat detection request to a supervisory system;
the acquisition module is used for acquiring the heartbeat detection result response of the monitoring system;
the uplink action control module is used for controlling uplink actions according to the heartbeat detection result response of the monitoring system; and if the heartbeat detection result responds to the indication node disconnection, stopping executing the uplink action.
8. A block link point device according to any one of claims 5 to 8, further comprising a block data masking module; furthermore, it is possible to provide a liquid crystal display device,
the acquisition module is used for routing inspection instructions and management and control instructions issued by the monitoring system; wherein the management and control instruction is generated by the supervision system according to the sensitive information detection result of each block data on the block chain;
the request module is used for sending an inspection request to the monitoring system according to the inspection instruction so as to realize sensitive information detection of each block data on the block chain;
and the block data shielding module is used for shielding the block data containing the sensitive information on the block chain according to the control instruction.
9. A sensitive information policing system for a blockchain network, comprising: a supervisory system, and at least one blockchain network supervised by the supervisory system; moreover, when the supervision system interacts with each supervised blockchain network node, the method for supervising sensitive information of a blockchain network according to any one of claims 1 to 4 is implemented.
10. A computer storage medium having stored thereon program instructions for implementing a method for sensitive information supervision for blockchain networks according to any one of claims 1 to 4 when executed.
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