CN110247925A - Power distribution automation information interacting method, system, terminal and storage medium - Google Patents
Power distribution automation information interacting method, system, terminal and storage medium Download PDFInfo
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- CN110247925A CN110247925A CN201910562422.0A CN201910562422A CN110247925A CN 110247925 A CN110247925 A CN 110247925A CN 201910562422 A CN201910562422 A CN 201910562422A CN 110247925 A CN110247925 A CN 110247925A
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- symmetric cryptographic
- synchronization information
- cryptographic 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
- H04L63/04—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
- H04L63/0435—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 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
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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
-
- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computing Systems (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
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- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The present invention provides a kind of power distribution automation information interacting method, system, terminal and storage medium, comprising: distributes asymmetric encryption public key to identifiable distribution terminal；The crypto-synchronization information through asymmetric encryption that distribution terminal is sent is received, the crypto-synchronization information includes symmetric cryptographic key；The matching symmetric cryptographic key being locally stored is searched according to the EIC equipment identification code of the affiliated distribution terminal of crypto-synchronization information；The matching symmetric cryptographic key is updated according to the symmetric cryptographic key in crypto-synchronization information；Symmetric cryptography is carried out to interactive information using updated matching symmetric cryptographic key.The present invention ensure that safety of the symmetric cryptographic key in transmission process by carrying out asymmetric encryption to the symmetric cryptographic key of transmission.Distribution main website recycles the symmetric cryptographic key after synchronized update to encrypt interactive information, improves the safety of the information interaction of distribution main website and distribution terminal.
Description
Technical field
The invention belongs to Distribution Automation Technology fields, and in particular to a kind of power distribution automation information interacting method, system,
Terminal and storage medium.
Background technique
Distribution Automation Technology is the important technology for serving the construction of town and country distribution network transform, and power distribution automation includes feeder line
Automation and Distribution Management System, the communication technology are the key that power distribution automations.Currently, China's power distribution automation carried out it is more
Pilot has been gained universal acceptance by the three-decker that distribution main website, substation and line feed terminals are constituted, and fiber optic communication is as backbone network
Communication mode also known together.The realization of feeder automation is also fully able to establish on the basis of fiber optic communication, this makes
Line feed terminals can rapidly communicate with one another, common to realize the feeder automation with higher performance.Power distribution automation system
System (DAS) is that one kind can make distribution enterprise monitor, coordinate in real time fashion in the distance and the Department of Automation of operation controller switching equipment
System；Its content includes electric distribution network data collection and monitoring (SCADA system), distribution GIS-Geographic Information System (GIS) and demand side pipe
Manage the several parts (DSM).
Electrical power distribution automatization system includes distribution main website and distribution terminal, needs to carry out letter between distribution main website and distribution terminal
Breath interaction.In order to guarantee the safety of interactive information, need that interactive information is encrypted.Symmetric encipherment algorithm is application
Encryption Algorithm earlier, technology maturation.In a symmetric encryption algorithm, data transmission side will plaintext (initial data) and encryption key
(mi yao) after the processing of special Encryption Algorithm, makes it become complicated encrypted cipher text and sends together.Destination receives
After ciphertext, if wanting to interpret original text, need that ciphertext is decrypted using the algorithm for inversion for encrypting used key and identical algorithms,
Just it can be made to revert to readable plaintext.In a symmetric encryption algorithm, the key used only one, hair collection of letters both sides all use this
A data key is encrypted and decrypted, and this requires decryption sides must be known by encryption key in advance.Symmetric encipherment algorithm
Feature is that algorithm discloses, calculation amount is small, enciphering rate is fast, encryption efficiency is high.Shortcoming is that both parties use same key
Spoon, safety cannot be guaranteed.
The interactive information of electrical power distribution automatization system is more, more demanding to enciphering rate, therefore calculates frequently with symmetric cryptography
Method carries out information encryption.But due to the inherent shortcoming of symmetric encipherment algorithm, how to improve the safety of interactive information is distribution
Automatic field technical problem urgently to be resolved.
Summary of the invention
For the above-mentioned deficiency of the prior art, the present invention provides a kind of power distribution automation information interacting method, system, terminal
And storage medium, to solve the above technical problems.
In a first aspect, the present invention provides a kind of power distribution automation information interacting method, comprising:
Distribute asymmetric encryption public key to identifiable distribution terminal；
The crypto-synchronization information through asymmetric encryption that distribution terminal is sent is received, the crypto-synchronization information includes symmetrical
Encryption key；
It is close that the matching symmetric cryptography being locally stored is searched according to the EIC equipment identification code of the affiliated distribution terminal of crypto-synchronization information
Key；
The matching symmetric cryptographic key is updated according to the symmetric cryptographic key in crypto-synchronization information；
Symmetric cryptography is carried out to interactive information using updated matching symmetric cryptographic key.
It is further, described to distribute asymmetric encryption public key to identifiable distribution terminal, comprising:
Acquire the EIC equipment identification code of all distribution terminals of identification；
All devices identification code is determined by authentication, the authentication includes that determination prestores EIC equipment identification code list
The middle EIC equipment identification code that there is identification；
Generate asymmetric encryption public key and private key；
Asymmetric encryption public key is distributed to all distribution terminals by authentication.
Further, the symmetric cryptographic key according in crypto-synchronization information to the matching symmetric cryptographic key into
Row updates, comprising:
Judge whether the matching encryption key and the symmetric cryptographic key in crypto-synchronization information are consistent:
It is then to determine that the matching encryption key is available symmetric cryptographic key；
It is no, then the matching encryption key is updated to the symmetric cryptographic key in crypto-synchronization information.
Further, the method also includes:
Crypto-synchronization information is set and obtains interval time；
The crypto-synchronization information of the encrypted form of distribution terminal is obtained according to the interval time；
Local matching symmetric cryptographic key is updated according to the crypto-synchronization information.
Second aspect, the present invention provide a kind of power distribution automation information interaction system, comprising:
Public key Dispatching Unit is configured to distribute asymmetric encryption public key to identifiable distribution terminal；
Information receiving unit is configured to receive the crypto-synchronization information through asymmetric encryption that distribution terminal is sent, institute
Stating crypto-synchronization information includes symmetric cryptographic key；
Local search unit is configured to be searched according to the EIC equipment identification code of the affiliated distribution terminal of crypto-synchronization information local
The matching symmetric cryptographic key of storage；
Key updating units are configured to add according to the symmetric cryptographic key in crypto-synchronization information is symmetrical to the matching
Key is updated；
Cryptographic processing unit is configured to symmetrically add to interactive information using updated matching symmetric cryptographic key
It is close.
Further, the public key Dispatching Unit includes:
It identifies acquisition module, is configured to the EIC equipment identification code of all distribution terminals of acquisition identification；
Authentication module is configured to determine all devices identification code by authentication, and the authentication includes
Determine the EIC equipment identification code for prestoring and there is identification in EIC equipment identification code list；
Key production module is configured to generate asymmetric encryption public key and private key；
Public key sending module is configured to for asymmetric encryption public key to be distributed to all distribution ends by authentication
End.
Further, the key updating units include:
Consistent judgment module is configured to judge that the matching encryption key and the symmetric cryptography in crypto-synchronization information are close
Whether key is consistent；
Determination module can be used, is configured to determine that the matching encryption key is available symmetric cryptographic key；
Synchronized update module is configured to the symmetric cryptography being updated to the matching encryption key in crypto-synchronization information
Key.
Further, the system also includes:
Time setup module is configured to setting crypto-synchronization information and obtains interval time；
It is synchronous to obtain module, it is configured to obtain the key synchronization of the encrypted form of distribution terminal according to the interval time
Information；
Key updating module is configured to carry out more local matching symmetric cryptographic key according to the crypto-synchronization information
Newly.
The third aspect provides a kind of terminal, comprising:
Processor, memory, wherein
The memory is used to store computer program,
The processor from memory for calling and running the computer program, so that terminal executes above-mentioned terminal
Method.
Fourth aspect provides a kind of computer storage medium, instruction is stored in the computer readable storage medium,
When run on a computer, so that computer executes method described in above-mentioned various aspects.
The beneficial effects of the present invention are,
Power distribution automation information interacting method, system, terminal and storage medium provided by the invention, by identifiable
Distribution terminal distributes asymmetric encryption public key, then receives the crypto-synchronization information through asymmetric encryption of distribution terminal transmission,
The symmetric cryptographic key for passing through asymmetric encryption, after crypto-synchronization information is decrypted by distribution main website, according to crypto-synchronization information
The EIC equipment identification code of affiliated distribution terminal searches the matching symmetric cryptographic key being locally stored, then according to crypto-synchronization information pair
The matching symmetric cryptographic key being locally stored synchronizes update.The present invention is non-right by carrying out to the symmetric cryptographic key of transmission
Claim encryption, ensure that safety of the symmetric cryptographic key in transmission process.It is symmetrical after distribution main website recycling synchronized update
Encryption key encrypts interactive information, improves the safety of the information interaction of distribution main website and distribution terminal.
In addition, design principle of the present invention is reliable, structure is simple, has very extensive application prospect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic flow chart of the method for one embodiment of the invention.
Fig. 2 is the schematic block diagram of the system of one embodiment of the invention.
Fig. 3 is a kind of structural schematic diagram of terminal provided in an embodiment of the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
The Key Term occurred in the present invention is explained below.
Fig. 1 is the schematic flow chart of the method for one embodiment of the invention.Wherein, Fig. 1 executing subject can be one kind
Power distribution automation information interaction system.
As shown in Figure 1, this method 100 includes:
Step 110, distribute asymmetric encryption public key to identifiable distribution terminal；
Step 120, the crypto-synchronization information through asymmetric encryption that distribution terminal is sent, the crypto-synchronization information are received
Including symmetric cryptographic key；
Step 130, the matching pair being locally stored is searched according to the EIC equipment identification code of the affiliated distribution terminal of crypto-synchronization information
Claim encryption key；
Step 140, the matching symmetric cryptographic key is carried out more according to the symmetric cryptographic key in crypto-synchronization information
Newly；
Step 150, symmetric cryptography is carried out to interactive information using updated matching symmetric cryptographic key.
It is optionally, described to distribute asymmetric encryption public key to identifiable distribution terminal as one embodiment of the invention,
Include:
Acquire the EIC equipment identification code of all distribution terminals of identification；
All devices identification code is determined by authentication, the authentication includes that determination prestores EIC equipment identification code list
The middle EIC equipment identification code that there is identification；
Generate asymmetric encryption public key and private key；
Asymmetric encryption public key is distributed to all distribution terminals by authentication.
Optionally, as one embodiment of the invention, the symmetric cryptographic key according in crypto-synchronization information is to institute
Matching symmetric cryptographic key is stated to be updated, comprising:
Judge whether the matching encryption key and the symmetric cryptographic key in crypto-synchronization information are consistent:
It is then to determine that the matching encryption key is available symmetric cryptographic key；
It is no, then the matching encryption key is updated to the symmetric cryptographic key in crypto-synchronization information.
Optionally, as one embodiment of the invention, the method also includes:
Crypto-synchronization information is set and obtains interval time；
The crypto-synchronization information of the encrypted form of distribution terminal is obtained according to the interval time；
Local matching symmetric cryptographic key is updated according to the crypto-synchronization information.
In order to facilitate the understanding of the present invention, below with the principle of power distribution automation information interacting method of the present invention, in conjunction with
The process that information exchange is carried out in embodiment, further retouches power distribution automation information interacting method provided by the invention
It states.
Specifically, the power distribution automation information interacting method includes:
S1, setting crypto-synchronization information obtain interval time, are set as 10min in the present embodiment, distribution main website will be arranged
Crypto-synchronization information obtain interval time (10min) be sent to distribution terminal, distribution terminal is obtained according to crypto-synchronization information
Interval time sends crypto-synchronization information to distribution main website, such as sends a key synchronization letter to distribution main website every 10 minutes
Breath, the crypto-synchronization information sent every time all includes newly-generated symmetric cryptographic key.
S2, the acquisition of distribution main website are currently able to the EIC equipment identification code of all distribution terminals of identification, judge the distribution of identification
Terminal Equipment Identifier whether there is in the EIC equipment identification code list for being stored in advance in distribution main website local, only know in equipment
Already existing EIC equipment identification code could pass through authentication in other code list.By the distribution terminal of authentication can with match
Electric main website carries out information exchange, is not transferred in warping apparatus list by the distribution terminal EIC equipment identification code of authentication, supplies
Operation maintenance personnel inspection.
Distribution main website sends the public key of asymmetric encryption to the distribution terminal by authentication, public for distribution terminal
Key encrypts crypto-synchronization information.
S3, distribution main website receive the encryption key synchronization information of distribution terminal, are decrypted using the private key being locally stored,
Obtain symmetric cryptographic key in plain text.Being locally stored is searched according to the EIC equipment identification code of the affiliated distribution terminal of crypto-synchronization information
With symmetric cryptographic key (be locally stored each distribution terminal EIC equipment identification code in list correspond to only one matching symmetric cryptography it is close
Key), then compare symmetric cryptographic key in plain text with whether match symmetric cryptographic key consistent, if unanimously then matching is symmetrically for the two
Encryption key is demarcated as can be used without updating；If the two is inconsistent, needs to match symmetric cryptographic key and be updated to symmetrically add
Close key plain.
After S4, distribution main website symmetric cryptographic key synchronous with distribution terminal, using symmetric cryptographic key to needs interaction
Information carries out symmetric cryptography, then carries out the transmission of information.
Power distribution automation information interacting method provided in this embodiment carries out identity to distribution terminal by distribution main website and tests
Card can effectively prevent puppet to emit distribution terminal access electrical power distribution automatization system.Periodically symmetric cryptographic key is updated simultaneously, and
Rivest, shamir, adelman is used in symmetric cryptographic key transmission, ensure that symmetric cryptographic key is not stolen in transmission process,
Improve the security protection ability of electrical power distribution automatization system.Encryption efficiency does not also reduce simultaneously.
If Fig. 2 shows, which includes:
Public key Dispatching Unit 210 is configured to distribute asymmetric encryption public key to identifiable distribution terminal；
Information receiving unit 220 is configured to receive the crypto-synchronization information through asymmetric encryption that distribution terminal is sent,
The crypto-synchronization information includes symmetric cryptographic key；
Local search unit 230 is configured to be searched according to the EIC equipment identification code of the affiliated distribution terminal of crypto-synchronization information
The matching symmetric cryptographic key being locally stored；
Key updating units 240 are configured to according to the symmetric cryptographic key in crypto-synchronization information to the matching pair
Encryption key is claimed to be updated；
Cryptographic processing unit 250 is configured to carry out pair interactive information using updated matching symmetric cryptographic key
Claim encryption.
Optionally, as one embodiment of the invention, the public key Dispatching Unit includes:
It identifies acquisition module, is configured to the EIC equipment identification code of all distribution terminals of acquisition identification；
Authentication module is configured to determine all devices identification code by authentication, and the authentication includes
Determine the EIC equipment identification code for prestoring and there is identification in EIC equipment identification code list；
Key production module is configured to generate asymmetric encryption public key and private key；
Public key sending module is configured to for asymmetric encryption public key to be distributed to all distribution ends by authentication
End.
Optionally, as one embodiment of the invention, the key updating units include:
Consistent judgment module is configured to judge that the matching encryption key and the symmetric cryptography in crypto-synchronization information are close
Whether key is consistent；
Determination module can be used, is configured to determine that the matching encryption key is available symmetric cryptographic key；
Synchronized update module is configured to the symmetric cryptography being updated to the matching encryption key in crypto-synchronization information
Key.
Optionally, as one embodiment of the invention, the system also includes:
Time setup module is configured to setting crypto-synchronization information and obtains interval time；
It is synchronous to obtain module, it is configured to obtain the key synchronization of the encrypted form of distribution terminal according to the interval time
Information；
Key updating module is configured to carry out more local matching symmetric cryptographic key according to the crypto-synchronization information
Newly.
Fig. 3 is a kind of structural schematic diagram of terminal system 300 provided in an embodiment of the present invention, which can be with
For executing power distribution automation information interacting method provided in an embodiment of the present invention.
Wherein, which may include: processor 310, memory 320 and communication unit 330.These components
It is communicated by one or more bus, it will be understood by those skilled in the art that the structure of server shown in figure is not
Limitation of the invention is constituted, it is also possible to hub-and-spoke configuration either busbar network, can also include more than illustrating
Or less component, perhaps combine certain components or different component layouts.
Wherein, which can be used for executing instruction for storage processor 310, and memory 320 can be by any class
The volatibility or non-volatile memories terminal or their combination of type are realized, such as static random access memory (SRAM), electricity
Erasable Programmable Read Only Memory EPROM (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory
(PROM), read-only memory (ROM), magnetic memory, flash memory, disk or CD.When executing instruction in memory 320
When being executed by processor 310, so that terminal 300 some or all of is able to carry out in following above method embodiment step.
Processor 310 is the control centre for storing terminal, utilizes each of various interfaces and the entire electric terminal of connection
A part by running or execute the software program and/or module that are stored in memory 320, and calls and is stored in storage
Data in device, to execute the various functions and/or processing data of electric terminal.The processor can be by integrated circuit
(Integrated Circuit, abbreviation IC) composition, such as the IC that can be encapsulated by single are formed, can also be by more of connection
The encapsulation IC of identical function or different function and form.For example, processor 310 can only include central processing unit
(Central Processing Unit, abbreviation CPU).In embodiments of the present invention, CPU can be single operation core, can also
To include multioperation core.
Communication unit 330, for establishing communication channel, so that the storage terminal be allow to be led to other terminals
Letter.It receives the user data of other terminals transmission or sends user data to other terminals.
The present invention also provides a kind of computer storage mediums, wherein the computer storage medium can be stored with program, the journey
Sequence may include step some or all of in each embodiment provided by the invention when executing.The storage medium can for magnetic disk,
CD, read-only memory (English: read-only memory, referred to as: ROM) or random access memory (English:
Random access memory, referred to as: RAM) etc..
Therefore, then the present invention receives distribution terminal by distributing asymmetric encryption public key to identifiable distribution terminal
The crypto-synchronization information through asymmetric encryption sent passes through the symmetric cryptographic key of asymmetric encryption, distribution main website is to close
After the decryption of key synchronizing information, the matching pair being locally stored is searched according to the EIC equipment identification code of the affiliated distribution terminal of crypto-synchronization information
Claim encryption key, update is then synchronized to the matching symmetric cryptographic key being locally stored according to crypto-synchronization information.This hair
The bright symmetric cryptographic key progress asymmetric encryption by transmission, ensure that safety of the symmetric cryptographic key in transmission process
Property.Distribution main website recycle synchronized update after symmetric cryptographic key interactive information is encrypted, improve distribution main website with
The safety of the information interaction of distribution terminal, the attainable technical effect of the present embodiment institute may refer to it is described above,
Details are not described herein again.
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software
The mode of general hardware platform realize.Based on this understanding, the technical solution in the embodiment of the present invention substantially or
Say that the part that contributes to existing technology can be embodied in the form of software products, which is stored in
Such as USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory in one storage medium
The various media that can store program code such as (RAM, Random Access Memory), magnetic or disk, including it is several
Instruction is used so that a terminal (can be personal computer, server or second terminal, the network terminal etc.) is held
Row all or part of the steps of the method according to each embodiment of the present invention.
Same and similar part may refer to each other between each embodiment in this specification.Implement especially for terminal
For example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring in embodiment of the method
Explanation.
In several embodiments provided by the present invention, it should be understood that disclosed system, system and method, it can be with
It realizes by another way.For example, system embodiment described above is only schematical, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of system or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
Although by reference to attached drawing and combining the mode of preferred embodiment to the present invention have been described in detail, the present invention
It is not limited to this.Without departing from the spirit and substance of the premise in the present invention, those of ordinary skill in the art can be to the present invention
Embodiment carry out various equivalent modifications or substitutions, and these modifications or substitutions all should in covering scope of the invention/appoint
What those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, answer
It is included within the scope of the present invention.Therefore, protection scope of the present invention is answered described is with scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of power distribution automation information interacting method characterized by comprising
Distribute asymmetric encryption public key to identifiable distribution terminal；
The crypto-synchronization information through asymmetric encryption that distribution terminal is sent is received, the crypto-synchronization information includes symmetric cryptography
Key；
The matching symmetric cryptographic key being locally stored is searched according to the EIC equipment identification code of the affiliated distribution terminal of crypto-synchronization information；
The matching symmetric cryptographic key is updated according to the symmetric cryptographic key in crypto-synchronization information；
Symmetric cryptography is carried out to interactive information using updated matching symmetric cryptographic key.
2. the method according to claim 1, wherein described distribute asymmetric encryption to identifiable distribution terminal
Public key, comprising:
Acquire the EIC equipment identification code of all distribution terminals of identification；
All devices identification code is determined by authentication, the authentication includes determining to prestore to deposit in EIC equipment identification code list
In the EIC equipment identification code of identification；
Generate asymmetric encryption public key and private key；
Asymmetric encryption public key is distributed to all distribution terminals by authentication.
3. the method according to claim 1, wherein the symmetric cryptographic key according in crypto-synchronization information
The matching symmetric cryptographic key is updated, comprising:
Judge whether the matching encryption key and the symmetric cryptographic key in crypto-synchronization information are consistent:
It is then to determine that the matching encryption key is available symmetric cryptographic key；
It is no, then the matching encryption key is updated to the symmetric cryptographic key in crypto-synchronization information.
4. the method according to claim 1, wherein the method also includes:
Crypto-synchronization information is set and obtains interval time；
The crypto-synchronization information of the encrypted form of distribution terminal is obtained according to the interval time；
Local matching symmetric cryptographic key is updated according to the crypto-synchronization information.
5. a kind of power distribution automation information interaction system characterized by comprising
Public key Dispatching Unit is configured to distribute asymmetric encryption public key to identifiable distribution terminal；
Information receiving unit is configured to receive the crypto-synchronization information through asymmetric encryption that distribution terminal is sent, described close
Key synchronizing information includes symmetric cryptographic key；
Local search unit is configured to be locally stored according to the lookup of the EIC equipment identification code of the affiliated distribution terminal of crypto-synchronization information
Matching symmetric cryptographic key；
Key updating units are configured to close to the matching symmetric cryptography according to the symmetric cryptographic key in crypto-synchronization information
Key is updated；
Cryptographic processing unit is configured to carry out symmetric cryptography to interactive information using updated matching symmetric cryptographic key.
6. system according to claim 5, which is characterized in that the public key Dispatching Unit includes:
It identifies acquisition module, is configured to the EIC equipment identification code of all distribution terminals of acquisition identification；
Authentication module is configured to determine all devices identification code by authentication, and the authentication includes determining
Prestore the EIC equipment identification code that there is identification in EIC equipment identification code list；
Key production module is configured to generate asymmetric encryption public key and private key；
Public key sending module is configured to for asymmetric encryption public key to be distributed to all distribution terminals by authentication.
7. system according to claim 5, which is characterized in that the key updating units include:
Consistent judgment module is configured to judge that the matching encryption key is with the symmetric cryptographic key in crypto-synchronization information
It is no consistent；
Determination module can be used, is configured to determine that the matching encryption key is available symmetric cryptographic key；
It is close to be configured to the symmetric cryptography that the matching encryption key is updated in crypto-synchronization information for synchronized update module
Key.
8. system according to claim 5, which is characterized in that the system also includes:
Time setup module is configured to setting crypto-synchronization information and obtains interval time；
It is synchronous to obtain module, it is configured to obtain the key synchronization letter of the encrypted form of distribution terminal according to the interval time
Breath；
Key updating module is configured to be updated local matching symmetric cryptographic key according to the crypto-synchronization information.
9. a kind of terminal characterized by comprising
Processor；
The memory executed instruction for storage processor；
Wherein, the processor is configured to perform claim requires the described in any item methods of 1-4.
10. a kind of computer readable storage medium for being stored with computer program, which is characterized in that the program is executed by processor
Shi Shixian method for example of any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562422.0A CN110247925A (en) | 2019-06-26 | 2019-06-26 | Power distribution automation information interacting method, system, terminal and storage medium |
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| CN201910562422.0A CN110247925A (en) | 2019-06-26 | 2019-06-26 | Power distribution automation information interacting method, system, terminal and storage medium |
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Cited By (2)
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