CN110290125B - Data security system based on block chain and data security processing method - Google Patents
Data security system based on block chain and data security processing method Download PDFInfo
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- CN110290125B CN110290125B CN201910523429.1A CN201910523429A CN110290125B CN 110290125 B CN110290125 B CN 110290125B CN 201910523429 A CN201910523429 A CN 201910523429A CN 110290125 B CN110290125 B CN 110290125B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0209—Architectural arrangements, e.g. perimeter networks or demilitarized zones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0227—Filtering policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
Abstract
The embodiment of the invention provides a data security system and a data security processing method based on a block chain, wherein the system comprises a checking unit, a security computing unit and a data processing unit, wherein the checking unit is used for receiving a data processing request sent by a data demand terminal, checking a preset information type according to the data processing request, and sending the data processing request to the data processing unit and the security computing unit after the checking is passed; the data processing unit is used for acquiring corresponding demand data from the distributed storage management system according to the data processing request and sending the demand data to the safety computing unit; and the safety computing unit is used for processing the required data according to the data processing request to obtain processing information, sending the processing information to the checking unit for checking, and sending the processing information to the data requiring terminal after the checking is passed, so that the shared data is safely used in a safety computing environment, and the safety and the controllability of a data provider on the source data are ensured.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a data security system and a data security processing method based on a block chain.
Background
The block chain access control process based on the certification authority realizes the safe, controllable and comprehensive supervision of the data sharing authority, mainly controls the sharing authority, but the data lose unique value once shared, and the current data privacy protection and data security mechanism are not perfect enough, so that the data sharing circulation process is limited. The following problems are mainly faced:
data control authority problem: after data sharing, a data owner loses the control right of the data, cannot intervene and monitor the use of the shared data, and is difficult to audit the use behavior of the data, for example, the data is easily copied, so that the sharing range is expanded and the control is lost. The data control right problem causes that the data source owner is unwilling to open and share the data, and the data can not be shared and circulated.
Data security computation problem: the data sharing is to obtain a valuable result in subsequent processing, but in the data sharing process, a secure computing environment is lacked, the data may be illegally stolen in the processing process, or after the computing, the computing result still causes leakage of sensitive information of the source data. Therefore, corresponding measures are lacked to ensure confidentiality in the data calculation process.
Privacy protection problem of data: the owner of the source data is unwilling to share the data for privacy, even if the shared data is desensitized data, the desensitized data value is also discounted in many cases, and the application scene of data sharing is limited. In general, shared data itself is original data, or still has partially sensitive data, and in another case, after data fusion, a new privacy disclosure problem may occur, and further security preprocessing needs to be performed on the data, such as privacy protection and desensitization after data mixing.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides a data security system and a data security processing method based on a block chain.
The embodiment of the invention provides a data security system based on a block chain, which comprises a checking unit, a security computing unit and a data processing unit, wherein:
the checking unit is used for receiving a data processing request sent by a data demand terminal, checking the type of preset information according to the data processing request, and sending the data processing request to the data processing unit and the safety computing unit after the checking is passed;
the data processing unit is used for acquiring corresponding demand data from a distributed storage management system according to the data processing request and sending the demand data to the safety computing unit;
the safety calculation unit is used for processing the required data according to the data processing request, obtaining processing information and sending the processing information to the checking unit;
the checking unit is further configured to check the processing information, and send the processing information to the data demand terminal after the checking is passed.
Optionally, the data processing request includes identity information, an algorithm type, a calculation requirement type, and a data requirement type;
the checking unit is used for respectively comparing and checking the identity information and the algorithm type, sending the data requirement type to the data processing unit after the checking is passed, and sending the algorithm type and the calculation requirement type to the safety calculation unit;
the data processing unit is used for acquiring corresponding demand data from a distributed storage management system according to the data demand type and sending the demand data to the safety computing unit;
and the safety calculation unit is used for processing the demand data according to the algorithm type and the calculation demand type to obtain processing information, and sending the processing information to the checking unit.
Optionally, if the calculation requirement type is to perform calculation processing on the requirement data, the safety calculation unit is configured to process the requirement data according to the algorithm type, obtain processing information, and send the processing information to the verification unit.
Optionally, if the calculation requirement type is that no calculation processing is performed on the requirement data, the secure calculation unit is configured to encrypt the requirement data and send the encrypted requirement data to the verification unit.
Optionally, the system further comprises a secure storage unit for storing the demand data and the processing information.
Optionally, the system further comprises an operation and maintenance unit, configured to perform operation and maintenance processing on the secure computing unit.
Optionally, the checking unit is further configured to generate a processing result according to the processing information, and send the processing result to a data providing terminal.
Optionally, a recording unit is further included for recording the data processing procedure.
The embodiment of the invention provides a data security processing method based on the data security system based on the block chain, which comprises the following steps:
receiving a data processing request sent by a data demand terminal through a checking unit, checking a preset information type according to the data processing request, and sending the data processing request to the data processing unit and the safety computing unit after the checking is passed;
acquiring corresponding demand data from a distributed storage management system through a data processing unit according to the data processing request, and sending the demand data to the safety computing unit;
processing the required data according to the data processing request through a safety computing unit to obtain processing information, and sending the processing information to the checking unit;
and checking the processing information through a checking unit, and sending the processing information to the data demand terminal after the checking is passed.
Optionally, the data processing request includes identity information, an algorithm type, a calculation requirement type, and a data requirement type;
respectively comparing and checking the identity information and the algorithm type through a checking unit, sending the data requirement type to the data processing unit after the checking is passed, and sending the algorithm type and the calculation requirement type to the safety calculation unit;
acquiring corresponding demand data from a distributed storage management system according to the data demand type through a data processing unit, and sending the demand data to the safety computing unit;
and processing the demand data through a safety calculation unit according to the algorithm type and the calculation demand type to obtain processing information, and sending the processing information to the verification unit.
According to the data security system and the data security processing method based on the block chain, provided by the embodiment of the invention, an intermediate system between a data demander, a data provider and a distributed storage management system based on the block chain is used for verifying and calculating the data processing request input by the data demander and the acquired required data safely, so that the shared data is used safely in a secure calculation environment, and the data provider can ensure the security and the controllability of source data.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a block diagram of an embodiment of a data security system based on blockchains;
FIG. 2 is a block diagram of an embodiment of a data security system based on blockchains;
fig. 3 is a flowchart of an embodiment of a data security processing method based on a blockchain according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
Fig. 1 illustrates a blockchain-based data security system for security-controlled and comprehensive supervision of blockchain-based shared data according to an embodiment of the present invention. Under the current situation, after data is shared, a data demand party can directly acquire the shared data, so that privacy protection and data security of the shared data are influenced by leakage. Therefore, the data security system provided by the embodiment of the invention can safely process the request of the data demand party for obtaining the shared data and the obtained shared data, so that the data provider can reasonably control the data shared by the data provider in a secure environment.
In the embodiment of the invention, the data security system is an intermediate system between a data demand side, a data supply side and a distributed storage management system based on a block chain. In embodiments of the present invention, the data security system may be referred to as a vault. In the block chain sharing environment, a plurality of insurance bins can be arranged according to the sharing area of different data. The information stored by each vault includes the user's rights information and the algorithm type of the data. Here, the authority information is multiple identity information that a user can acquire and access shared data. Such as user login account, important data acquisition authority, etc. The algorithm type of the data is a processing mode adopted by corresponding different service data. Such as aggregating data, sorting data, etc. Providers of these algorithm types may upload the algorithm types to the system in advance.
In the embodiment of the invention, a user as a data demand party can log in and access the shared data interface through the data demand terminal, can select a proper insurance cabin from the interface according to the service data required by the user, and inputs a data processing request after the insurance cabin is selected.
In the embodiment of the present invention, the system includes a checking unit 1, a security calculating unit 2, and a data processing unit 3, wherein:
the checking unit 1 is used for receiving a data processing request sent by a data demand terminal, checking a preset information type according to the data processing request, and sending the data processing request to the data processing unit and the safety computing unit after the checking is passed;
the data processing unit 2 is used for acquiring corresponding demand data from a distributed storage management system according to the data processing request and sending the demand data to the safety computing unit;
the safety calculation unit 3 is used for processing the required data according to the data processing request, obtaining processing information and sending the processing information to the checking unit;
the checking unit 1 is further configured to check the processing information, and send the processing information to the data demand terminal after the checking is passed.
In the embodiment of the invention, the checking unit is a basic component of the whole system (insurance cabin), and is mainly used for managing accounts, identities and the like of various users using the insurance cabin, such as registration, login and the like. And the authority, algorithm, rights and interests and the like of the user are checked, the identity and the authority of the user entering the safety computing unit are determined to be legal, and the safety of the shared data is protected. After the data demand party sends a data processing request through the data demand terminal, the checking unit needs to check a preset information type according to the data processing request, wherein the preset information type can be an identity type, an algorithm type and the like. And after the verification is passed, sending the data processing request to the data processing unit and the safety computing unit.
The data processing unit can be in butt joint with the distributed storage management system based on the block chain, and acquires the required data from the distributed storage management system according to the data processing request. The data processing unit is capable of setting a data security access policy to ensure that the demand data is obtained from the distributed storage management system. And simultaneously, the access operation for acquiring the required data can be recorded.
The secure computing unit provides secure sandboxing capability, which is a virtual system program that allows you to run a browser or other program in a sandbox environment so that changes made by the run can be subsequently deleted. The method creates an independent operation environment similar to a sandbox, and programs running in the environment cannot permanently influence a hard disk. The bottom data is protected by loading the driver of the driver, and the protection belongs to the protection of the driver level. A plurality of safety computing sandboxes are arranged in the safety computing unit, and when the safety computing sandboxes process the required data, the safety computing sandboxes can automatically regulate and control the system according to respective processing occupation amounts. The safety calculation unit can realize the isolation of data, protect the data by adopting a high-strength encryption means, and can not acquire plaintext information even if the data is illegally acquired. The safety calculation unit can process the demand data according to the data processing request to obtain processing information.
The checking unit is further configured to check the processing information, and send the processing information to the data demand terminal after the checking is passed.
The data security system based on the block chain provided by the embodiment of the invention is an intermediate system between a data demander, a data provider and a distributed storage management system based on the block chain, and realizes the safe use of shared data in a safe computing environment by checking and safely computing a data processing request input by the data demander and acquired required data, thereby ensuring the safety and controllability of the data provider on source data.
On the basis of the above embodiments, a further explanation is made that the data processing request includes identity information, an algorithm type, a calculation requirement type, and a data requirement type.
The checking unit is used for respectively comparing and checking the identity information and the algorithm type, sending the data requirement type to the data processing unit after the checking is passed, and sending the algorithm type and the calculation requirement type to the safety calculation unit;
the data processing unit is used for acquiring corresponding demand data from a distributed storage management system according to the data demand type and sending the demand data to the safety computing unit;
the safety calculation unit is used for processing the demand data according to the algorithm type and the calculation demand type to obtain processing information and sending the processing information to the checking unit;
the checking unit is further configured to check the processing information, and send the processing information to the data demand terminal after the checking is passed.
If the calculation requirement type is calculation processing on the requirement data, the safety calculation unit is used for processing the requirement data according to the algorithm type to obtain processing information, and sending the processing information to the verification unit.
And if the calculation requirement type is that no calculation processing is carried out on the requirement data, the safety calculation unit is used for encrypting the requirement data and then sending the encrypted requirement data to the verification unit.
The data demand side sometimes only needs original data and does not need to calculate the original data, and therefore the safety calculation unit encrypts the acquired demand data and sends the demand data. The data demand method sometimes needs to calculate the original data, and therefore, the demand data is processed according to the algorithm type and the calculation demand type, and processing information is obtained and sent out.
Fig. 2 shows a data security system based on a blockchain according to an embodiment of the present invention, where the system includes a checking unit 1, a security computing unit 2, and a data processing unit 3, where:
the checking unit 1 is used for receiving a data processing request sent by a data demand terminal, checking a preset information type according to the data processing request, and sending the data processing request to the data processing unit and the safety computing unit after the checking is passed;
the data processing unit 2 is used for acquiring corresponding demand data from a distributed storage management system according to the data processing request and sending the demand data to the safety computing unit;
the safety calculation unit 3 is used for processing the required data according to the data processing request, obtaining processing information and sending the processing information to the checking unit;
the checking unit 1 is further configured to check the processing information, and send the processing information to the data demand terminal after the checking is passed
And the safety storage unit 4 is used for storing the requirement data and the processing information.
The system also comprises an operation and maintenance unit 5 used for carrying out operation and maintenance processing on the safety computing unit.
The checking unit 1 is further configured to generate a processing result according to the processing information, and send the processing result to a data providing terminal.
In addition, the device also comprises a recording unit for recording the data processing process. Here, the data processing process is a process of acquiring demand data by a data demanding side.
The data security system based on the block chain provided by the embodiment of the invention is an intermediate system between a data demander, a data provider and a distributed storage management system based on the block chain, and realizes the safe use of shared data in a safe computing environment by checking and safely computing a data processing request input by the data demander and acquired required data, thereby ensuring the safety and controllability of the data provider on source data.
Fig. 3 shows that an embodiment of the present invention provides a data security processing method using the above data security system based on a blockchain, including:
s11, receiving a data processing request sent by a data demand terminal through a checking unit, checking a preset information type according to the data processing request, and sending the data processing request to the data processing unit and the safety computing unit after the checking is passed;
s12, acquiring corresponding demand data from the distributed storage management system through the data processing unit according to the data processing request, and sending the demand data to the safety computing unit;
s13, processing the required data according to the data processing request through a safety calculation unit to obtain processing information, and sending the processing information to the checking unit;
and S14, checking the processing information through a checking unit, and sending the processing information to the data demand terminal after the checking is passed.
Explained further, the data processing request includes identity information, an algorithm type, a computation requirement type, and a data requirement type;
respectively comparing and checking the identity information and the algorithm type through a checking unit, sending the data requirement type to the data processing unit after the checking is passed, and sending the algorithm type and the calculation requirement type to the safety calculation unit;
acquiring corresponding demand data from a distributed storage management system according to the data demand type through a data processing unit, and sending the demand data to the safety computing unit;
and processing the demand data through a safety calculation unit according to the algorithm type and the calculation demand type to obtain processing information, and sending the processing information to the verification unit.
Since the principle of the method according to the embodiment of the present invention is the same as that of the system according to the embodiment, further detailed explanation is omitted here.
According to the data security processing method based on the block chain, provided by the embodiment of the invention, an intermediate system between a data demander, a data provider and a distributed storage management system based on the block chain checks and performs security calculation on a data processing request input by the data demander and acquired required data, so that shared data is safely used in a security calculation environment, and the security of the data provider on source data is ensured to be controllable.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A blockchain-based data security system, the system comprising a verification unit, a security computation unit, and a data processing unit, wherein:
the system comprises a checking unit, a safety calculating unit and a safety calculating unit, wherein the checking unit is used for receiving a data processing request sent by a data demand terminal, the data processing request comprises identity information, an algorithm type, a calculation demand type and a data demand type, and the checking unit is used for respectively comparing and checking the identity information and the algorithm type, sending the data demand type to the data processing unit after the checking is passed, and sending the algorithm type and the calculation demand type to the safety calculating unit;
the data processing unit is used for setting a data security access strategy, acquiring corresponding demand data from a distributed storage management system according to the data demand type, and sending the demand data to the security computing unit;
the safety calculation unit is used for processing the demand data according to the algorithm type and the calculation demand type to obtain processing information and sending the processing information to the checking unit;
the checking unit is further configured to check the processing information, and send the processing information to the data demand terminal after the checking is passed;
the data security system is an intermediate system between a data demander, a data provider and a distributed storage management system based on a block chain, information stored in each data security system comprises authority information and an algorithm type of a user, the authority information is multiple identity information which can be acquired and accessed by the user to share data, the algorithm type is a processing mode adopted by corresponding different service data, and the provider of the algorithm type can upload the algorithm type to the system in advance;
the calculation requirement type is that calculation processing is carried out on the requirement data or no calculation processing is carried out on the requirement data.
2. The blockchain-based data security system of claim 1, wherein if the computing requirement type is to perform computing processing on the requirement data, the security computing unit is configured to process the requirement data according to the algorithm type to obtain processing information, and send the processing information to the checking unit.
3. The blockchain-based data security system of claim 2, wherein if the computing requirement type is that no computing processing is performed on the requirement data, the security computing unit is configured to encrypt the requirement data and send the encrypted requirement data to the verification unit.
4. The blockchain-based data security system of claim 1, further comprising a secure storage unit to store the demand data and the process information.
5. The blockchain-based data security system of claim 1, further comprising an operation and maintenance unit for operation and maintenance processing of the secure computing unit.
6. The blockchain-based data security system of claim 1, wherein the checking unit is further configured to generate a processing result according to the processing information and send the processing result to a data providing terminal.
7. The blockchain-based data security system of claim 1, further comprising a recording unit for recording data processing procedures.
8. A data security processing method of the data security system based on the blockchain according to any one of claims 1 to 7, comprising:
receiving a data processing request sent by a data demand terminal through a checking unit, wherein the data processing request comprises identity information, an algorithm type, a calculation demand type and a data demand type, respectively comparing and checking the identity information and the algorithm type through the checking unit, sending the data demand type to the data processing unit after the checking is passed, and sending the algorithm type and the calculation demand type to the safety calculation unit;
setting a data security access strategy through a data processing unit, acquiring corresponding demand data from a distributed storage management system according to the data demand type, and sending the demand data to the security computing unit;
processing the demand data according to the algorithm type and the calculation demand type through a safety calculation unit to obtain processing information, and sending the processing information to the checking unit;
the processing information is checked through a checking unit, and the processing information is sent to the data demand terminal after the checking is passed;
the data security system is an intermediate system between a data demander, a data provider and a distributed storage management system based on a block chain, information stored in each data security system comprises authority information and an algorithm type of a user, the authority information is multiple identity information which can be acquired and accessed by the user to share data, the algorithm type is a processing mode adopted by corresponding different service data, and the provider of the algorithm type can upload the algorithm type to the system in advance;
the calculation requirement type is that calculation processing is carried out on the requirement data or no calculation processing is carried out on the requirement data.
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| CN113297625B (en) * | 2021-07-23 | 2021-11-02 | 北京笔新互联网科技有限公司 | Data sharing system and method based on block chain and electronic equipment |
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| CN109711182A (en) * | 2018-12-27 | 2019-05-03 | 中国电子科技集团公司第三十研究所 | A kind of cross-cutting shared data security decision method and model based on block chain |
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| CN110290125A (en) | 2019-09-27 |
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