CN108696475B - Automatic registration method and device for power distribution automatic terminal with safety certification - Google Patents
Automatic registration method and device for power distribution automatic terminal with safety certification Download PDFInfo
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- CN108696475B CN108696475B CN201710219555.9A CN201710219555A CN108696475B CN 108696475 B CN108696475 B CN 108696475B CN 201710219555 A CN201710219555 A CN 201710219555A CN 108696475 B CN108696475 B CN 108696475B
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- 238000012545 processing Methods 0.000 claims abstract description 44
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims description 21
- 238000012795 verification Methods 0.000 claims description 12
- 238000013024 troubleshooting Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 3
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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
- H04L63/0869—Network architectures or network communication protocols for network security for authentication of entities for achieving mutual authentication
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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
- H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
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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
- H04L67/2866—Architectures; Arrangements
- H04L67/30—Profiles
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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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
Abstract
The invention provides a distribution automation terminal automatic registration method with safety certification and a device thereof, comprising: the method comprises the steps of firstly, pre-configuring a terminal, then, carrying out bidirectional identity authentication on a master station and the terminal, and carrying out registration processing on the master station after the authentication is successful. The technical scheme provided by the invention can solve the automatic access problem of the conventional power distribution automation terminal, provide correct information sources for subsequent terminal personalized configuration work, reduce the workload of manual installation, debugging and operation and maintenance, and improve the application level of power distribution automation and the efficiency of construction and operation and maintenance.
Description
Technical Field
The invention relates to a measurement data uploading optimization method, in particular to a distribution automation terminal automatic registration method and device with safety certification.
Background
With the continuous development of the power distribution automation level and the manual removal requirement of power production operation and maintenance, a large number of remote automatic terminals which are deployed on a power distribution production field and used for executing functions of acquisition, monitoring, control and the like improve the observability, testability and controllability of the production field on one hand, and are beneficial to analysis and decision of a control center; on the other hand, management and operation and maintenance of the automation terminals which are large in quantity and distributed dispersedly consume a large amount of cost investment of enterprises, production and operation efficiency is not improved, and remote centralized management of the power automation terminals through an automatic registration mechanism is the basis for solving the problem. Generally, a distribution automation system mostly adopts a wireless public network form for communication, and potential safety hazards such as identity forgery, information interception, tampering and the like exist in the registration process.
Therefore, a distribution automation terminal automatic registration method with security authentication is needed, which strengthens a security encryption and identity authentication mechanism at a terminal registration stage, and ensures the security, reliability and fault tolerance of an automatic access mechanism of a distribution automation terminal.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic registration method of a power distribution automatic terminal with safety certification.
A distribution automation terminal automatic registration method with security certification comprises the following steps:
I. pre-configuring a terminal;
II. After the terminal is pre-configured, the master station and the terminal perform bidirectional identity authentication;
and III, after the bidirectional identity authentication is successful, the master station receives the registration information sent by the terminal to perform registration processing.
Further, the bidirectional identity authentication of step II includes:
the master station verifies the signed digital certificate which is sent by the terminal and has the random numbers R1 and R2, and the signature is carried out after the verification is passed; the R1 is generated by the master station and sent to the terminal, and the R2 is generated by the terminal;
and the main station sends the signed digital certificate to the terminal and receives verification information returned by the terminal for verifying the validity of the main station according to R1.
Further, the registering by the master station in step III includes:
the master station judges whether the terminal is successfully registered or not according to the registration information uploaded by the terminal;
if the terminal is successfully registered, restarting the terminal and then judging whether the terminal is registered again; if the terminal is registered, judging whether the registration information of the terminal is correct, if so, finishing the registration processing and generating a configuration file, otherwise, performing registration failure processing;
and if the terminal fails to register, performing registration failure processing.
Further, the determining whether the terminal is successfully registered includes:
when the terminal is registered for the first time, a terminal registration record table is newly established, registration records are added in the table and are associated with a terminal station account table;
when the terminal is newly installed but registered, the main station reestablishes the terminal registration record table after backing up the existing registration record table of the terminal in other paths, and associates the terminal station account table;
and when the terminal is not registered for the first time, the master station only increases the registration record.
Further, the registration failure processing includes:
if the problem is a configuration file problem, checking; if the registration is unknown, the registration process is initiated again until the registration is successful or the registration frequency exceeds a threshold value; and when the registration times exceed the threshold value, the master station gives an alarm and feeds back a registration failure message.
Further, the configuration file comprises a configuration file version and a CRC feature code.
A distribution automation terminal auto-registration device with security authentication, the device comprising:
the pre-configuration module is used for pre-configuring the terminal;
the authentication module is used for performing bidirectional identity authentication between the master station and the terminal after the terminal is preconfigured;
and the registration processing module is used for receiving the registration information sent by the terminal by the master station for registration processing after the bidirectional identity authentication is successful.
Further, the authentication module includes:
the certificate verifying and signing module is used for verifying the digital certificate which is signed and provided with the random numbers R1 and R2 and is sent by the terminal by the master station and signing the digital certificate after the verification is passed; the R1 is generated by the master station and sent to the terminal, and the R2 is generated by the terminal;
and the legality verification module is used for sending the signed result to the terminal by the main station and receiving verification information returned by the terminal for verifying the legality of the main station according to R1.
Further, the registration processing module includes:
the judging module is used for judging whether the terminal is successfully registered according to the registration information uploaded by the terminal;
the configuration file generation module is used for generating a configuration file when the terminal is successfully registered and the registration information of the terminal is correct;
and the registration failure processing module is used for processing the registration failure when the terminal fails to register or the interrupted registration information is incorrect.
Further, the judging module includes:
the first registration processing module is used for newly building a terminal registration record table, adding registration records in the table and associating the registration records with a terminal account table;
the registered new installation processing module is used for reestablishing the terminal registration record table and associating the terminal account table after the existing registration record table of the terminal is backed up in other paths;
and the non-first registration processing module is used for only increasing the registration record.
Further, the registration failure processing module includes:
the troubleshooting processing module is used for carrying out troubleshooting processing when a configuration file problem occurs;
the re-registration processing module is used for re-initiating the registration process when an unknown reason occurs until the registration is successful or the registration frequency exceeds a threshold value; and when the registration times exceed the threshold value, the master station gives an alarm and feeds back a registration failure message.
Compared with the closest prior art, the technical scheme provided by the invention has the following beneficial effects:
the technical scheme provided by the invention comprises terminal pre-configuration information, bidirectional identity authentication of the terminal and the main station based on a digital certificate, a normal processing process of terminal registration, an exception handling mechanism and the like. The automatic access problem of the automatic distribution terminal at present can be solved, correct information sources are provided for subsequent terminal personalized configuration work, manual installation, debugging and operation and maintenance workload is reduced, and distribution automation application level and construction operation and maintenance efficiency are improved.
The potential safety hazards of identity forgery, information interception, tampering and the like in the registration process of the existing distribution automation system adopting a wireless public network form for communication are overcome.
Drawings
Fig. 1 is a technical architecture for automatic registration of a power automation terminal;
fig. 2 is a flow of an automatic registration service of the power automation terminal;
fig. 3 is a bidirectional identity authentication process of a distribution automation terminal and a distribution master station;
fig. 4 is a structural relationship of an automatic registration and management and control center of a distribution automation terminal.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. 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.
The specific implementation scheme is as follows:
the terminal sends the registration information to the control center through the registration port, and in order to avoid influencing normal communication data transmission, the registration adopts a special channel to apply for registration and defines a special registration message. The process and steps for registration through the dedicated port are as follows:
(1) the terminal is preconfigured. Before the terminal finishes the arrival detection and enters the installation site, parameter information such as a communication mode, a protocol and the like needs to be configured.
a) When the optical fiber Ethernet communication mode is adopted, the terminal is required to be configured with the IP address of the control center, the communication gateway and the parameter information related to a specific communication protocol in advance.
b) When the engineering site adopts a wireless communication mode, the terminal is required to be configured with basic parameter information such as a control center IP address, a communication gateway, a VPN address, a GPRS system and the like in advance.
c) When the 104 specification is adopted, the maximum number of messages with continuous serial numbers which are not accepted in a specific time and the timeout restart time of the link should be configured.
(2) And (4) terminal admission authentication. After the terminal arrives at the site and wiring is completed, site personnel should detect that the ID of the terminal is consistent inside and outside through a terminal configuration tool and a two-dimensional code scanner. The terminal is powered on and started, a master station is actively searched to establish a communication link, after the link is successfully established, a bidirectional authentication process based on a digital certificate is started, and the master station acquires a master station random number R1 from the power distribution encryption authentication device and sends the master station random number to the terminal; the terminal acquires a terminal random number R2 from the security chip, signs the R1+ R2 and sends the signed R1+ R2 to the master station, and meanwhile, the terminal stores the R1; the master station verifies the signature by using the terminal certificate, and the identity of the master station to the terminal is verified; then the master station signs a terminal random number R2 and sends the result to the terminal; and the terminal verifies the correctness of the signature of the main station, and after verification, the terminal completes the identity authentication of the main station and returns authentication confirmation information.
(3) The terminal sends registration information. The master station and the terminal complete bidirectional authentication, after the identities are correct, the terminal sends registration information to the master station by adopting a designated port, the registration information at least comprises information such as a terminal unique ID, an icd file version number, an icd file modification version number, an icd file feature code, an cid file version number, an cid file modification version number and an cid file feature code, and bytes are reserved for information expansion in a registration communication message.
And when the terminal is newly installed and is registered for the first time, a terminal registration record table is newly established, and the registration record is added in the table and is associated with the terminal account table. When the terminal is newly installed but has the registration record table under the terminal ID, the terminal is a replacement terminal, and the master station should backup the registration table existing in the terminal ID under other paths, reestablish the terminal registration table and associate the terminal account table. And when the terminal is not registered for the first time, the master station only increases the registration record.
If the terminal is successfully registered, restarting the terminal and then judging whether the terminal is registered again; if the terminal is registered, judging whether the registration information of the terminal is correct, if so, finishing the registration processing and generating a configuration file, otherwise, performing registration failure processing;
and if the terminal fails to register, performing registration failure processing.
And after the registration is successful, the master station returns an acknowledgement message, the terminal disconnects the registration link, opens the port 104 and enters a terminal configuration flow. In the configuration process, an icd or cid configuration file is uploaded according to the requirements of the main station, the main station performs configuration work such as topology, parameters and automatic point selection to generate a new terminal configuration file, and at the moment, the feature codes, version information and the like of the file are changed.
The terminal receives the registration failure message, if the registration failure message is a known reason (the reason can be found in a known reason library), the terminal does not register any more, and manual intervention is required to check the file version problem; if the reason is unknown, the terminal initiates the registration process again, the same result appears for 3 times continuously, and the master station gives an alarm and checks the problem through manual intervention.
CRC check code: in order to ensure that different main bodies are restricted to modify the content of the configuration file in the daily operation and maintenance process of the terminal, the file version is managed, and the configuration file of the terminal is additionally subjected to version verification by CRC feature code information generated by a uniform algorithm.
The automatic registration process of the power distribution terminal can be applied to various construction, operation and maintenance, management and application scenes such as new installation of the terminal, terminal upgrading, terminal field maintenance, terminal system side reconfiguration, terminal replacement and the like, and the registration process is described by taking the new installation of the terminal as an example.
(1) And after the terminal finishes bidding purchase, the terminal enters a test library to carry out goods detection, after the detection is qualified, a unique asset ID number is distributed to the terminal, a terminal asset table is newly built in an asset center, and a field installation work order comprising an installation line, a position, a primary equipment number and installation leader information is dispatched. The control center sends out a terminal access configuration work list which comprises a master station ID, a terminal communication mode, communication gateway information and the like.
(2) And the manufacturer updates the built-in ID number and the external ID number of the terminal, performs pre-configuration work before leaving the factory, and the installation responsible person configures the necessary information such as the IP address of the power distribution master station, the communication gateway, the wireless communication parameters and the like to complete the pre-configuration work.
(3) And the terminal carries out installation and wiring on site, operation and maintenance tools such as a configuration tool and a two-dimensional code scanning gun are adopted to check the correctness of information such as the ID, IP, gateway and association with primary equipment of the terminal, and a manufacturer checks the version information of the factory icd configuration file of the terminal. And after no error occurs, the terminal is powered on, automatically searches the master station and establishes a communication link.
(4) And after the communication link is established, entering a bidirectional authentication process between the control center and the master station. The control center firstly initiates an authentication process, the master station generates a digital certificate R1 and sends the digital certificate to the terminal, the terminal reserves the random number and generates a random number R2 at the terminal side, the R1+ R2 is signed and then sent to the master station, the master station verifies the certificate, the digital signature is carried out after the verification is passed, the result is sent to the terminal again, and the terminal verifies the legality of the master station according to R1 and returns verification passing information. The terminal and the master station complete the bidirectional authentication process.
(5) The terminal initiates a registration service, the registration message is sent to the master station, registration is carried out for the first time, the terminal only has an ICD file, and the historical version is consistent with the current version. And the master station analyzes the registration message, inquires a registration-free list under the terminal ID as the first registration, establishes a registration list, newly adds the registration record and returns a registration success message to the terminal. And simultaneously, requesting a terminal asset table from the asset center, and entering a system side configuration flow.
(6) After the terminal receives the registration success message, the registration port is closed, and the communication port is started 104 to enter the configuration process, which is matched with the configuration process of the system side. And the installer fills in a work order, supplements field operation information and returns the field operation information to the asset center, and the asset center hands over the relevant information to the operation and maintenance center after the terminal is put into operation.
A distribution automation terminal auto-registration device with security authentication, the device comprising:
the pre-configuration module is used for pre-configuring the terminal;
the authentication module is used for performing bidirectional identity authentication between the master station and the terminal after the terminal is preconfigured;
the registration information module is used for receiving the registration information sent by the terminal by the master station for registration processing after the bidirectional identity authentication is successful;
and the configuration flow module is used for starting the configuration flow by the master station.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting the scope of protection thereof, and although the present application is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: numerous variations, modifications, and equivalents will occur to those skilled in the art upon reading the present application and are intended to be within the scope of the claims appended hereto.
Claims (3)
1. A distribution automation terminal automatic registration method with safety certification is characterized by comprising the following steps:
I. pre-configuring a terminal;
II. After the terminal is pre-configured, the master station and the terminal perform bidirectional identity authentication;
III, after the bidirectional identity authentication is successful, the master station receives registration information sent by the terminal to perform registration processing;
the step III of the master station performing registration processing includes:
the master station judges whether the terminal is successfully registered or not according to the registration information uploaded by the terminal;
if the terminal is successfully registered, restarting the terminal and then judging whether the terminal is registered again; if the terminal is registered, judging whether the registration information of the terminal is correct, if so, finishing the registration processing and generating a configuration file, otherwise, performing registration failure processing;
if the terminal fails to register, the registration failure is processed;
the judging whether the terminal is successfully registered includes:
when the terminal is registered for the first time, a terminal registration record table is newly established, registration records are added in the table and are associated with a terminal station account table;
when the terminal is newly installed but registered, the main station reestablishes the terminal registration record table after backing up the existing registration record table of the terminal in other paths, and associates the terminal station account table;
when the terminal is not registered for the first time, the master station only adds the registration record;
the registration failure processing comprises:
if the problem is a configuration file problem, checking; if the registration is unknown, the registration process is initiated again until the registration is successful or the registration frequency exceeds a threshold value; when the registration times exceed a threshold value, the master station gives an alarm and feeds back a registration failure message;
the configuration file includes a configuration file version and a CRC signature.
2. The distribution automation terminal automatic registration method with security authentication as claimed in claim 1, wherein the bidirectional identity authentication of step II comprises:
the master station verifies the signed digital certificate which is sent by the terminal and has the random numbers R1 and R2, and the signature is carried out after the verification is passed; the R1 is generated by the master station and sent to the terminal, and the R2 is generated by the terminal;
and the main station sends the signed digital certificate to the terminal and receives verification information returned by the terminal for verifying the validity of the main station according to R1.
3. A distribution automation terminal automatic registration device with safety certification is characterized in that the device comprises:
the pre-configuration module is used for pre-configuring the terminal;
the authentication module is used for performing bidirectional identity authentication between the master station and the terminal after the terminal is preconfigured;
the registration processing module is used for receiving the registration information sent by the terminal by the master station for registration processing after the bidirectional identity authentication is successful;
the authentication module includes:
the certificate verifying and signing module is used for verifying the digital certificate which is signed and provided with the random numbers R1 and R2 and is sent by the terminal by the master station and signing the digital certificate after the verification is passed; the R1 is generated by the master station and sent to the terminal, and the R2 is generated by the terminal;
the legality verifying module is used for sending the signed result to the terminal by the main station and receiving verifying information returned by the terminal for verifying the legality of the main station according to R1;
the registration processing module includes:
the judging module is used for judging whether the terminal is successfully registered according to the registration information uploaded by the terminal;
the configuration file generation module is used for generating a configuration file when the terminal is successfully registered and the registration information of the terminal is correct;
the registration failure processing module is used for processing registration failure when the terminal fails to register or the interrupted registration information is incorrect;
the judging module comprises:
the first registration processing module is used for newly building a terminal registration record table, adding registration records in the table and associating the registration records with a terminal account table;
the registered new installation processing module is used for reestablishing the terminal registration record table and associating the terminal account table after the existing registration record table of the terminal is backed up in other paths;
the non-first registration processing module is used for only increasing the registration record;
the registration failure processing module comprises:
the troubleshooting processing module is used for carrying out troubleshooting processing when a configuration file problem occurs;
the re-registration processing module is used for re-initiating the registration process when an unknown reason occurs until the registration is successful or the registration frequency exceeds a threshold value; and when the registration times exceed the threshold value, the master station gives an alarm and feeds back a registration failure message.
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| CN109687591A (en) * | 2019-02-01 | 2019-04-26 | 国网江苏省电力有限公司 | A kind of net lotus terminal parameter processing method, main website and system |
| CN110430220A (en) * | 2019-08-28 | 2019-11-08 | 四川省东宇信息技术有限责任公司 | A kind of power transmission and transforming equipment safety access method and system |
| CN111951465A (en) * | 2020-08-14 | 2020-11-17 | 西安博康硕达网络科技有限公司 | Intelligent operation system of vending machine in market based on big data and video analysis |
| CN112350871A (en) * | 2020-11-13 | 2021-02-09 | 珠海许继电气有限公司 | Maintenance method and device for distributed DTU |
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| 电力行业工控终端设备安全接入系统的设计与实现;彭竹;《中国优秀硕士学位论文全文数据库 信息科技辑》;20160315;全文 * |
| 配电终端自动发现技术的实现;韩国政;《电力系统自动化》;20120925;第82-85页 * |
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