CN108833092A - Dual encryption communication means for photovoltaic monitoring management system - Google Patents
Dual encryption communication means for photovoltaic monitoring management system Download PDFInfo
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- CN108833092A CN108833092A CN201810607827.7A CN201810607827A CN108833092A CN 108833092 A CN108833092 A CN 108833092A CN 201810607827 A CN201810607827 A CN 201810607827A CN 108833092 A CN108833092 A CN 108833092A
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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
-
- 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
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
-
- 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
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Small-Scale Networks (AREA)
Abstract
The present invention discloses a kind of dual encryption communication means for photovoltaic monitoring management system, and the dual encryption communication means for photovoltaic monitoring management system includes following procedure：The collected initial data of data acquisition equipment；Encryption for the first time is carried out to initial data in data acquisition is set and obtains first time ciphertext, and first time ciphertext is transferred to data management apparatus；Data management apparatus, which receives first time ciphertext and decrypts for the first time, obtains initial data；The initial data that data management apparatus obtains after decrypting to first time carries out second and encrypts, and second of ciphertext is sent to cloud platform server；Cloud platform server, which receives second of ciphertext that data management apparatus is sent and decrypts, obtains initial data.The dual encryption communication means for photovoltaic monitoring management system can guarantee the Information Security and message integrality of communication processor wireless communication.
Description
Technical field
The present invention relates to a kind of coded communication algorithm, especially a kind of dual encryption for photovoltaic monitoring management system is communicated
Method belongs to the technical field of photovoltaic conflux data transmission.
Background technique
Unified monitoring management system is constructed in photovoltaic system, needs the tidal data recovering of header box, inverter, ammeter logical
Believe supervisor, when photovoltaic system monitors, and communication processor uses plaintext transmission using wireless transmission, wireless communication has
Packet phenomenon and the unsafe phenomenon of data.Network change is frequently or under the 2G/3G network environment of less stable, communication processor
When with cloud platform communication, data are imperfect or may receive hacker attack, and data are dangerous.
Summary of the invention
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of dual encryption for photovoltaic monitoring management system
Communication means guarantees the Information Security and message integrality of communication processor wireless communication.
The technical solution provided according to the present invention, a kind of dual encryption communication means for photovoltaic monitoring management system, institute
Stating for the dual encryption communication means of photovoltaic monitoring management system includes following procedure：
Data acquisition equipment acquires initial data；
Encryption for the first time is carried out to initial data in data acquisition equipment and obtains first time ciphertext, and first time ciphertext is transmitted
To data management apparatus；
Data management apparatus, which receives first time ciphertext and decrypts for the first time, obtains initial data；
The initial data that data management apparatus obtains after decrypting to first time carries out second and encrypts, and second of ciphertext is sent
Give cloud platform server；
Cloud platform server, which receives second of ciphertext that data management apparatus is sent and decrypts, obtains initial data.
Further, first time ciphertext is obtained for carrying out encryption for the first time to initial data in data acquisition equipment,
And the encryption for the first time of data acquisition equipment described in the step of first time ciphertext is transferred to data management apparatus includes following
Process：
The CRC check value of primary key and initial data progress XOR operation is obtained into new key；
New key and initial data are obtained into first time ciphertext by KEELOQ algorithm.
Further, the step of initial data is obtained for receiving first time ciphertext in data management apparatus and decrypting for the first time
Suddenly include：Data management apparatus is decrypted the received first time ciphertext of institute by primary key.
Further, if data management apparatus can not be decrypted the received first time ciphertext of institute by primary key
Function, data management apparatus then use the CRC check value of primary key and initial data to carry out the obtained new key of XOR operation
The received first time ciphertext of institute is decrypted.
Further, obtained new if carrying out XOR operation using the CRC check value of primary key and initial data
Success is decrypted in the received first time ciphertext of key pair institute, then data management apparatus is by the CRC of primary key and initial data
Test value carries out decruption key of the obtained new key of XOR operation as data management apparatus.
Further, the initial data obtained after decrypting for data management apparatus to first time carries out second and encrypts,
And it includes following that second of data management apparatus described in the step of second of ciphertext is sent to cloud platform server, which encrypts,
Process：
The algorithm list that it is used and MAC algorithm are sent to cloud platform server by data management apparatus, and the MAC algorithm is used as
Generate the random number of key；
Cloud platform server selects a kind of Encryption Algorithm as specified Encryption Algorithm from received algorithm list, selects one
The specified Encryption Algorithm and specified MAC algorithm are sent to data management apparatus as specified MAC algorithm by kind MAC algorithm；
The initial data that data management apparatus obtains after decrypting to first time is segmented, and is divided into several records；
Data management apparatus sequentially generates the MAC of several records with specified MAC algorithm；
Data management apparatus successively carries out data encryption to several records with specified Encryption Algorithm and forms encryption data；
Data management apparatus adds the head of every record, sends the encryption data.
Further, is received by second of ciphertext of data management apparatus transmission and is decrypted for cloud platform server and obtain original
The step of beginning data, specifically includes：
Cloud platform server receives the encryption data of every record, and with decipherment algorithm pair corresponding with specified Encryption Algorithm
Every record is decrypted；
The practical specified MAC algorithm of cloud platform server verifies MAC.
It can be seen that the dual encryption communication means provided by the present invention for photovoltaic monitoring management system from the above,
Has following advantages compared with prior art：First, ciphering process can guarantee the number of data management apparatus wireless communication twice
According to safety and message integrality, guarantee the safe transmission of communication processor.Second, new key obtains in first time encryption
Depending on the mode of primary key and the CRC check value of initial data, only primary key is avoided and existing transmission hidden danger.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Fig. 2 is the specific flow chart of step 2 in process described in Fig. 1.
Fig. 3 is the specific flow chart of step 3 in process described in Fig. 1.
Fig. 4 is the specific flow chart of step 4 in process described in Fig. 1.
Fig. 5 is the specific flow chart of step 5 in process described in Fig. 1.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Dual encryption communication means for photovoltaic monitoring management system
The photovoltaic monitoring management system includes：Data acquisition equipment, data management apparatus and cloud platform server；The data
Acquiring equipment includes header box, inverter and ammeter, and data acquisition equipment can carry out channel radio between data management apparatus
Letter is sent to data management apparatus after encrypting collected initial data for the first time；The data management apparatus, for receiving
The first time ciphertext of data acquisition equipment transmission simultaneously obtains initial data through first time decryption, and data management apparatus is to first later
Secondary obtained initial data of decrypting carries out second of encryption, and second of ciphertext is sent to cloud platform server；The cloud is flat
Platform server, second of the ciphertext and decryption that management equipment is sent for receiving data obtain initial data.
As shown in Figure 1, it is described for photovoltaic monitoring management tie up to data acquisition set in initial data carry out for the first time plus
It is close to obtain first time ciphertext, and it includes following mistake that first time ciphertext, which is transferred to the dual encryption communication means of data management apparatus system,
Journey：
S1：Data acquisition equipment acquires initial data；
S2：Encryption for the first time is carried out to initial data in data acquisition equipment and obtains first time ciphertext, and by first time ciphertext
It is transferred to data management apparatus；
S3；Data management apparatus, which receives first time ciphertext and decrypts for the first time, obtains initial data；
S4：Obtained initial data carries out second and encrypts after data management apparatus decrypts first time, and by second of ciphertext
It is sent to cloud platform server；
S5：Cloud platform server, which receives second of ciphertext that data management apparatus is sent and decrypts, obtains initial data.
It can be seen that the ciphering process twice can guarantee the Information Security of data management apparatus wireless communication
With message integrality, guarantee the safe transmission of communication processor.
In order to avoid making data acquisition equipment and data management apparatus because of Key Exposure in first time ciphering process
Between transmission there are security risk, include following procedure for the encryption for the first time of data acquisition equipment described in step S2,
As shown in Fig. 2,：
S210：The CRC check value of primary key and initial data progress XOR operation is obtained into new key；
S220：New key and initial data are obtained into first time ciphertext by KEELOQ algorithm.
As can be seen that the acquisition of the new key depends on the CRC check value of primary key and initial data, avoid only
There is primary key and existing transmission hidden danger.
In order to cooperate the first time data encryption process of step S2 as described above, for data pipe described in step S3
Managing equipment decryption for the first time is that learning type is decrypted comprising following steps, as shown in Figure 3：
S310：The received first time ciphertext of institute is decrypted by primary key；
If data management apparatus is decrypted the received first time ciphertext of institute by primary key unsuccessful, data management is set
It is standby then carry out S320：The obtained new key of XOR operation is carried out to institute using the CRC check value of primary key and initial data
Received first time ciphertext is decrypted.If the S320 successful decryption of data management apparatus, data management apparatus is carried out
S330：The CRC check value of primary key and initial data is carried out the obtained new key of XOR operation as data management to set
Standby decruption key.
In order to avoid making data management apparatus and cloud platform server because of Key Exposure in second of ciphering process
Between transmission there are security risk, it includes following procedure, such as Fig. 4 that second of data management apparatus described in S4, which is encrypted,
It is shown,：
S410：The algorithm list that it is used and MAC algorithm are sent to cloud platform server by data management apparatus, and the MAC is calculated
Method is used as the random number for generating key.
S420：Cloud platform server selects a kind of Encryption Algorithm to calculate as specified encryption from received algorithm list
Method selects a kind of MAC algorithm to be sent to data as specified MAC algorithm, and by the specified Encryption Algorithm and specified MAC algorithm
Management equipment.
S430：The initial data that data management apparatus obtains after decrypting to first time is segmented, and is divided into several records.
S440：Data management apparatus sequentially generates the MAC of several records with specified MAC algorithm.
S450：Data management apparatus successively carries out data encryption to several records with specified Encryption Algorithm and forms encryption number
According to.
S460：Data management apparatus adds the head of every record, sends the encryption data.
Wherein the cloud platform server selects a kind of Encryption Algorithm to add as specified from received algorithm list
Close algorithm selects a kind of MAC algorithm as specified MAC algorithm, can be avoided and generates the risk of leakage because Encryption Algorithm is single.
Is received by second of ciphertext of data management apparatus transmission and is decrypted for cloud platform server described in S5 and obtains original
The step of beginning data, specifically includes, as shown in figure 5,：
S510：Cloud platform server receives the encryption data of every record, and with decryption corresponding with specified Encryption Algorithm
Record described in every is decrypted in algorithm.
S520：The practical specified MAC algorithm of cloud platform server verifies MAC.
Those of ordinary skills in the art should understand that：The above is only a specific embodiment of the present invention, and
It is not used in the limitation present invention, all any modification, equivalent substitution, improvement and etc. within purport of the invention, done should all include
Within protection scope of the present invention.
Claims (7)
1. a kind of dual encryption communication means for photovoltaic monitoring management system, which is characterized in that described to be used for photovoltaic monitoring pipe
The dual encryption communication means of reason system includes following procedure：
Data acquisition equipment acquires initial data；
Encryption for the first time is carried out to initial data in data acquisition equipment and obtains first time ciphertext, and first time ciphertext is transmitted
To data management apparatus；
Data management apparatus, which receives first time ciphertext and decrypts for the first time, obtains initial data；
The initial data that data management apparatus obtains after decrypting to first time carries out second and encrypts, and second of ciphertext is sent
Give cloud platform server；
Cloud platform server, which receives second of ciphertext that data management apparatus is sent and decrypts, obtains initial data.
2. as described in claim 1 be used for photovoltaic monitoring management system dual encryption communication means, which is characterized in that for
Encryption for the first time is carried out to initial data in data acquisition equipment and obtains first time ciphertext, and first time ciphertext is transferred to data
The encryption for the first time of data acquisition equipment described in the step of management equipment includes following procedure：
The CRC check value of primary key and initial data progress XOR operation is obtained into new key；
New key and initial data are obtained into first time ciphertext by KEELOQ algorithm.
3. as described in claim 1 be used for photovoltaic monitoring management system dual encryption communication means, which is characterized in that for
Data management apparatus receives first time ciphertext and decrypts the step of obtaining initial data for the first time：Data management apparatus passes through
The received first time ciphertext of institute is decrypted in primary key.
4. being used for the dual encryption communication means of photovoltaic monitoring management system as claimed in claim 3, which is characterized in that if number
By primary key the received first time ciphertext of institute is decrypted according to management equipment unsuccessful, data management apparatus then uses original
The CRC check value of beginning key and initial data carries out the obtained new key of XOR operation and carries out to the received first time ciphertext of institute
Decryption.
5. being used for the dual encryption communication means of photovoltaic monitoring management system as claimed in claim 4, which is characterized in that if made
The obtained new key of XOR operation is carried out to the received first time ciphertext of institute with the CRC check value of primary key and initial data
Success is decrypted, then data management apparatus carries out the CRC check value of primary key and initial data obtained by XOR operation
Decruption key of the new key as data management apparatus.
6. being used for the dual encryption communication means of photovoltaic monitoring management system as described in claim 1, which is characterized in that for number
The initial data obtained after decrypting according to management equipment to first time carries out second and encrypts, and second of ciphertext is sent to cloud and is put down
It includes following procedure that second of data management apparatus described in the step of platform server, which encrypts,：
The algorithm list that it is used and MAC algorithm are sent to cloud platform server by data management apparatus, and the MAC algorithm is used as
Generate the random number of key；
Cloud platform server selects a kind of Encryption Algorithm as specified Encryption Algorithm from received algorithm list, selects one
The specified Encryption Algorithm and specified MAC algorithm are sent to data management apparatus as specified MAC algorithm by kind MAC algorithm；
The initial data that data management apparatus obtains after decrypting to first time is segmented, and is divided into several records；
Data management apparatus sequentially generates the MAC of several records with specified MAC algorithm；
Data management apparatus successively carries out data encryption to several records with specified Encryption Algorithm and forms encryption data；
Data management apparatus adds the head of every record, sends the encryption data.
7. being used for the dual encryption communication means of photovoltaic monitoring management system as claimed in claim 6, which is characterized in that for cloud
Platform Server receives second of ciphertext that data management apparatus is sent and decrypts the step of obtaining initial data and specifically includes：
Cloud platform server receives the encryption data of every record, and with decipherment algorithm pair corresponding with specified Encryption Algorithm
Every record is decrypted；
The practical specified MAC algorithm of cloud platform server verifies MAC.
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| CN201810607827.7A CN108833092A (en) | 2018-06-13 | 2018-06-13 | Dual encryption communication means for photovoltaic monitoring management system |
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| CN201810607827.7A CN108833092A (en) | 2018-06-13 | 2018-06-13 | Dual encryption communication means for photovoltaic monitoring management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117278254A (en) * | 2023-08-18 | 2023-12-22 | 华能灌云清洁能源发电有限责任公司 | Distributed photovoltaic operation and maintenance system with data encryption transmission function |
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Application publication date: 20181116 |
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