CN115001735A - Electric power system data safety processing method and system - Google Patents
Electric power system data safety processing method and system Download PDFInfo
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- CN115001735A CN115001735A CN202210404003.6A CN202210404003A CN115001735A CN 115001735 A CN115001735 A CN 115001735A CN 202210404003 A CN202210404003 A CN 202210404003A CN 115001735 A CN115001735 A CN 115001735A
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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
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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
- H04L63/0236—Filtering by address, protocol, port number or service, e.g. IP-address or URL
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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
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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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
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0478—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload applying multiple layers of encryption, e.g. nested tunnels or encrypting the content with a first key and then with at least a second key
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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
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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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
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
- H04L63/0846—Network architectures or network communication protocols for network security for authentication of entities using passwords using time-dependent-passwords, e.g. periodically changing passwords
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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
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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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
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
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Abstract
The invention belongs to the field of electric power, and particularly relates to a method and a system for safely processing data of an electric power system, wherein the method comprises the steps of setting a main server and outputting first data; setting a relay server, acquiring and secondarily encrypting the first data, and outputting second data; setting a decryption device, receiving the second data and decrypting and outputting third data; setting a client and decrypting the third data; setting a mirror image server to temporarily store external network input data for a main server; and setting a data recording module, receiving the key information, and physically isolating the key information from the main server when the receiving is finished. By setting a main server for random encryption, a layer of encryption protection for data can be provided; the relay server can provide two-layer encryption protection for data and increase protection for the main server; enabling the data to be normally interpreted by the decryption device; data interaction can be completed through the client; the defense capability of the primary server can be increased through the mirror image server.
Description
Technical Field
The invention belongs to the field of electric power, and particularly relates to a method and a system for safely processing data of an electric power system.
Background
With the development of computer technology and network technology, especially the deep integration of information-based industrialization and the rapid development of the internet of things, industrial control system products are increasingly connected with public networks such as the internet in various ways by adopting general protocols, general hardware, general software and the like, and threat factors such as viruses, trojans, operating system bugs and the like are diffused in the industrial control system, thereby causing great threat to the industrial control system.
The power monitoring system is used for monitoring and controlling a computer and network technology-based business system and intelligent equipment of a power generation and supply process, and is also used for a communication and data network serving as a basic support. The electric power monitoring system has the characteristics of relatively isolated network environment and infinite service, but the electric power monitoring system has safety risks of internal network attack, trojan horse, worm virus and the like, and the safe and stable operation of the electric power monitoring system is influenced.
Disclosure of Invention
In order to solve or improve the above problems, the invention provides a method and a system for safely processing data of an electric power system, and the specific technical scheme is as follows:
the invention provides a data security processing method for an electric power system, which comprises the following steps: setting a main server for outputting the first data which is encrypted randomly; setting a relay server, which is used for acquiring and encrypting the first data for the second time and outputting second data according to a distribution code of the first data; setting a decryption device for receiving the second data conforming to the distribution code and decrypting and outputting third data; setting a client for decrypting the third data according to the distribution code; setting a mirror image server for temporarily storing external network input data for the main server when the main server is not connected with an external network; and the data recording module is used for receiving the key information of the first data of the main server when the main server is isolated from the external network and physically isolating the main server when the receiving is finished.
Preferably, the main server is connected with the client through an external network; and the main server outputs the randomly encrypted first data after being physically isolated from the data recording module.
Preferably, the client is configured to output a decryption request instruction to the main server; the main server is used for requesting a client end which accords with the record to verify according to the data to be decrypted corresponding to the decryption request instruction, and acquiring the key information from the data recording module and sending the key information to the client end if the verification is passed; the main server, the client and the data recording module realize that only one data link exists at the same time through physical isolation.
Preferably, the main server is used for establishing connection with the client through an IP address and a dynamic machine identification code.
The invention provides a data security processing system of an electric power system, comprising: a main server for outputting first data which is randomly encrypted; the relay server is used for acquiring and secondarily encrypting the first data and outputting second data according to a distribution code of the first data; the decryption device is used for receiving the second data conforming to the distribution code and decrypting and outputting third data to the client; the mirror image server is used for temporarily storing external network input data for the main server when the main server is not connected with an external network; and the data recording module is used for receiving the key information of the first data of the main server when the main server is isolated from the external network, and is physically isolated from the main server when the receiving is finished.
Preferably, the main server is connected with the client through an external network; and the main server is used for outputting the first data which is encrypted randomly after being physically isolated from the data recording module.
Preferably, the client is configured to output a decryption request instruction to the main server; the main server is used for requesting a client end which accords with the record to verify according to the data to be decrypted corresponding to the decryption request instruction, and acquiring the key information from the data recording module and sending the key information to the client end if the verification is passed; the main server, the client and the data recording module realize that only one data link exists at the same time through physical isolation.
Preferably, the main server is used for establishing connection with the client through an IP address and a dynamic machine identification code.
The invention has the beneficial effects that: by setting a main server for random encryption, a layer of encryption protection for data can be provided; the relay server can provide two-layer encryption protection for data and increase protection for the main server; the data can be read normally through a decryption device; data interaction can be completed through the client.
Drawings
FIG. 1 is a schematic diagram of a power system data security processing method according to the present invention;
fig. 2 is a schematic diagram of a power system data security processing system according to the present invention.
Description of the main reference numerals:
1-main server, 2-relay server, 3-decryption device, 4-client, 5-mirror server, 6-data recording module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are 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.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
In order to solve or improve the network security problem of the power system, a method for processing data security of the power system shown in fig. 1 is provided, which includes: s1, setting a main server for outputting the first data which is encrypted randomly; s2, setting a relay server for acquiring and secondarily encrypting the first data and outputting second data according to the distribution code of the first data; s3, setting a decryption device for receiving the second data conforming to the distribution code and decrypting and outputting third data; s4, setting a client for decrypting the third data according to the distribution code; s5, setting a mirror image server for temporarily storing the external network input data for the main server when the main server is not connected with the external network; and S6, setting a data recording module, for receiving the key information of the first data when the main server is isolated from the external network, and physically isolating the main server when the receiving is completed.
The power system has various devices and instruments, and if an independent data link is provided for each device and instrument, huge modification cost can be brought, and the safety is convenient and cannot be guaranteed. Setting a main server for collecting data needing data interaction and then carrying out comprehensive processing; the hardware cost of data collection is low, and meanwhile, the data security protection is convenient due to the fact that the data collection is a single entity. And processing the data needing to be interacted with the external data through a random encryption algorithm to obtain first data.
The main server is used as a main server for collecting and processing data and has strong functional requirements and safety requirements. The power system belongs to a traditional industrial system, common equipment of the power system pursues stability and cannot be updated in real time at any time according to the current technology, so that the digitization and the intellectualization degrees are all deficient. If the function of the main server is inclined to data processing, the safety protection capability is insufficient; or the host server stores sensitive data that cannot be directly allowed to connect directly to the outside world for security purposes. By arranging the relay server, secondary processing of data can be performed, the relay server can also be used as a defense link of the main server, and the influence of possible external intrusion on the main server is reduced.
After data is encrypted, the data can be used only after being decrypted. And the decryption device is used for receiving the second data conforming to the distribution code and decrypting and outputting third data. Wherein the identification code is used to represent an attribute of the data. Different data processing is possible according to the attribute of the data.
The client is equivalent to a node of data interaction outside the power system. Namely, the server and the client perform data interaction.
The main server sends data to the relay server, the relay server encrypts the data for the second time and then sends the encrypted data to the decryption device, the decryption device is connected with the client, the decryption device decrypts the data and sends the data to the client, the data sent to the relay server by the main server is the data encrypted randomly by adopting a random encryption algorithm, the data are sent to the relay server after being encrypted randomly, the relay server receives the encrypted data, identifies and encrypts the data for the second time and then sends the data to the corresponding decryption device according to a distribution code, the decryption device is used for decrypting the encrypted data output by the relay server (removing the second encryption) and then sends the data to the client, and the client decrypts the data according to the distribution code (removing the first encryption).
The main server is connected with the client through an external network; the method further comprises the following steps: the data recording module is arranged and used for receiving a key of first data encrypted by the main server when the main server isolates an external network, and the key is physically isolated from the main server when the receiving is finished; correspondingly, the main server is used for outputting the randomly encrypted first data after being physically isolated from the data recording module.
The main server is connected with the client through an external network, and the external network is a non-local area network. The data recording module is used for storing key information, and the key information is used for decrypting the first data. The primary server needs to encrypt the original data to form the first data when being isolated from the external network to prevent leakage of the original data. The data recording module is a module for storing key information, and needs to minimize connection with the outside, so after receiving the key information, the data recording module is physically disconnected from the main server. After the data recording module is determined to be disconnected from the main server, the main server is connected with the external network, so that the external network can be prevented from invading the data recording module through the main server to obtain the key information.
The client is used for outputting a decryption request instruction to the main server; the main server is used for requesting a client end which accords with the record to verify according to the data to be decrypted corresponding to the decryption request instruction, and acquiring the key information from the data recording module and sending the key information to the client end if the verification is passed; the main server, the client and the data recording module realize that only one data link exists at the same time through physical isolation.
The power system performs data interaction with the outside and does not interact with only one target, and the interactive content is not only one piece of data and needs to be distinguished. The client side outputs a decryption request instruction, and the main server determines which data to be decrypted the client side wants according to the decryption request instruction. In reality, external intrusion or viruses can be disguised as a client to collect data, in order to prevent the situation, the main server needs to perform verification, and particularly needs to perform verification with the client according with the record, for example, the client a requires data, the main server can require verification to the client a and/or the client B, and even if the viruses are disguised as the client a, the client B cannot be driven to complete the verification. The main server specifically verifies which client is to take what way, and the verification can be performed according to preset records. Meanwhile, for the purpose of safety, only one data link exists among the three points of the main server, the client and the data recording module at the same time through physical isolation.
The sequence of decrypting the encryption layer of the main server by the client is to send a decryption request instruction to the main server, the main server sends verification instruction information to the corresponding client recorded in the system by the data, after the verification instruction information is input by the client to be correct, the main server is disconnected from the external network, then is connected with the data recording module, calls the key information of the data, is disconnected from the physical connection between the main server and the data recording module, and finally is connected with the external network and sends the decryption information to the client recorded in the system by the data.
The main server is used for establishing connection with the client through the IP address and the dynamic machine identification code.
The method further comprises the following steps: and setting a mirror image server for temporarily storing external network input data for the main server when the main server is not connected with the external network.
The main server is also in data connection with a mirror image server, when the main server uses an intranet, the mirror image server takes over the instruction according to the information of the main server to execute interaction with the outside, the mirror image server backups mirror image information to keep the information uninterrupted, the mirror image server is used for temporarily taking over the work of the main server when the main server is disconnected with the extranet, the request decryption instructions received in the time period are all recorded to the cache processor, and then the information in the cache processor is all sent to the main server after the main server is connected with the extranet. And a physical switch is arranged between the main server and the mirror image server.
The invention provides a data security processing system of a power system as shown in fig. 2, comprising: a main server 1 for outputting first data which is randomly encrypted; a relay server 2 for acquiring and secondarily encrypting the first data, and outputting second data according to a distribution code of the first data; and the decryption device 3 is used for receiving the second data conforming to the distribution code and decrypting and outputting third data to the client 4.
The main server is connected with the client through an external network; the system further comprises: the data recording module 6 is used for receiving the key information of the first data encrypted by the main server when the main server isolates the external network, and is physically isolated from the main server when the receiving is finished; correspondingly, the main server is used for outputting the randomly encrypted first data after being physically isolated from the data recording module.
The client is used for outputting a decryption request instruction to the main server; the main server is used for requesting a client side which accords with records to verify according to the data to be decrypted corresponding to the decryption request instruction, and acquiring the key information from the data recording module and sending the key information to the client side if the verification is passed; the main server, the client and the data recording module realize that only one data link exists at the same time through physical isolation.
The main server is used for establishing connection with the client through the IP address and the dynamic machine identification code.
The system further comprises: and the mirror image server 5 is used for temporarily storing the external network input data for the main server when the main server is not connected with the external network.
Those of ordinary skill in the art will appreciate that the elements of the examples described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components of the examples have been described above generally in terms of their functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present application, it should be understood that the division of the unit is only one division of logical functions, and other division manners may be used in actual implementation, for example, multiple units may be combined into one unit, one unit may be split into multiple units, or some features may be omitted.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.
Claims (8)
1. A method for safely processing data of an electric power system is characterized by comprising the following steps:
setting a main server for outputting the first data which is encrypted randomly;
setting a relay server, which is used for acquiring and encrypting the first data for the second time and outputting second data according to a distribution code of the first data;
setting a decryption device for receiving the second data conforming to the distribution code and decrypting and outputting third data;
setting a client for decrypting the third data according to the distribution code;
setting a mirror image server for temporarily storing external network input data for the main server when the main server is not connected with an external network;
and the data recording module is used for receiving the key information of the first data of the main server when the main server is isolated from the external network and physically isolating the main server when the receiving is finished.
2. The power system data security processing method according to claim 1, wherein the main server is connected to the client through an external network;
and the main server outputs the randomly encrypted first data after being physically isolated from the data recording module.
3. The power system data security processing method according to claim 2, wherein the client is configured to output a decryption request instruction to the main server;
the main server is used for requesting a client end which accords with the record to verify according to the data to be decrypted corresponding to the decryption request instruction, and acquiring the key information from the data recording module and sending the key information to the client end if the verification is passed;
the main server, the client and the data recording module realize that only one data link exists at the same time through physical isolation.
4. The power system data security processing method according to claim 2, wherein the main server is configured to establish a connection with the client through an IP address and a dynamic machine identification code.
5. A power system data security processing system, comprising:
a main server for outputting the randomly encrypted first data;
the relay server is used for acquiring and secondarily encrypting the first data and outputting second data according to a distribution code of the first data;
the decryption device is used for receiving the second data conforming to the distribution code and decrypting and outputting third data to the client;
the mirror image server is used for temporarily storing external network input data for the main server when the main server is not connected with an external network;
and the data recording module is used for receiving the key information of the first data of the main server when the main server is isolated from the external network, and is physically isolated from the main server when the receiving is finished.
6. The power system data security processing system according to claim 5, wherein the main server is connected to the client through an external network;
and the main server is used for outputting the randomly encrypted first data after being physically isolated from the data recording module.
7. The system according to claim 6, wherein the client is configured to output a decryption request instruction to the main server;
the main server is used for requesting a client end which accords with the record to verify according to the data to be decrypted corresponding to the decryption request instruction, and acquiring the key information from the data recording module and sending the key information to the client end if the verification is passed;
the main server, the client and the data recording module realize that only one data link exists at the same time through physical isolation.
8. The system of claim 6, wherein the host server is configured to establish a connection with the client via an IP address and a dynamic machine identifier.
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| 祝楠: "基于电厂调度管理及实时调度系统（PDMS）镜像的研究", 中国优秀硕士学位论文全文数据库 工程科技II辑, no. 2015 * |
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| CN115001735B (en) | 2023-12-12 |
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