CN105577386A - Data encryption method of bilateral interaction intelligent electric energy meter - Google Patents
Data encryption method of bilateral interaction intelligent electric energy meter Download PDFInfo
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- CN105577386A CN105577386A CN201510980272.7A CN201510980272A CN105577386A CN 105577386 A CN105577386 A CN 105577386A CN 201510980272 A CN201510980272 A CN 201510980272A CN 105577386 A CN105577386 A CN 105577386A
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- copy reading
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000003993 interaction Effects 0.000 title claims abstract description 9
- 230000002146 bilateral effect Effects 0.000 title abstract 2
- 102100038591 Endothelial cell-selective adhesion molecule Human genes 0.000 claims abstract description 54
- 101000882622 Homo sapiens Endothelial cell-selective adhesion molecule Proteins 0.000 claims abstract description 54
- 238000004891 communication Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000012790 confirmation Methods 0.000 claims description 24
- 238000012546 transfer Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000004807 localization Effects 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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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
- H04L9/3271—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 using challenge-response
- H04L9/3273—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 using challenge-response for mutual authentication
-
- 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
-
- 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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- 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)
- Storage Device Security (AREA)
Abstract
The invention provides a data encryption method of a bilateral interaction intelligent electric energy meter. The method comprises the following steps: a reading device and the electric energy meter authenticate identity of each other, and an MCU of the reading device transmits a data communication request and starts data transmission; the MCU of the reading device transits data encrypted by an ESAM of the reading device to the MCU of the electric energy meter through a physical transmission layer; the ESAM of the electric energy meter decrypts the data received by the MCU of the electric energy meter and returns back the decrypted data to the MCU of the electric energy meter; the MCU of the electric energy meter receives the decrypted original data and transmits the decrypted original data to the electric energy meter, and after receiving the data, the electric energy meter returns back corresponding result data to the MCU of the electric energy meter according to a responding command in the data; the MCU of the electric energy meter transmits the encrypted data to the MCU of the reading device, and the reading device performs decryption to extract the data. The method provided by the invention performs data encryption for a data interaction process of the reading device and the electric energy meter, and not only realizes safe communication between the electric energy meter and a localized reading device, but also has no influence on performance of the existing electricity consumption information acquisition system.
Description
Technical field
The present invention relates to field of data encryption, be specifically related to a kind of data ciphering method of two-way interaction intelligent electric energy meter.
Background technology
For promoting the interactive level of strong intelligent grid further, omnidirectional support electrical network is intelligent, interactive realization of goal, positive carrying and the promotion third time industrial revolution, strengthen participation and the perceptibility of Electricity customers, the world promoting smart grid electricity usage link leads status, have developed direct two-way interactive intelligent electric energy meter.This electric energy meter allows user to be read the data of electric energy meter inside by localized copy reading equipment (mobile phone, special kilowatt meter recorder).The networking of localization equipment may cause the information leakage of power consumer on the one hand, can bring adverse influence on the other hand to current existing acquisition system network.
Summary of the invention
For overcoming above-mentioned the deficiencies in the prior art, the invention provides a kind of data ciphering method of two-way interaction intelligent electric energy meter, identity verify is carried out to equipment, data encryption is carried out to electric energy meter data exchange process, both achieved the secure communication between electric energy meter and localized copy reading equipment, can not impact the performance of existing power information acquisition system again.
Realizing the solution that above-mentioned purpose adopts is:
A data ciphering method for two-way interaction intelligent electric energy meter, described method comprises:
(1) copy reading equipment and electric energy meter carry out identity verify mutually;
(2) copy reading equipment MCU sends data communications requests, starts transfer of data;
(3) copy reading equipment MCU accesses copy reading equipment ESAM, starts data encryption application, and copy reading equipment ESAM confirms that errorless backward copy reading equipment MCU returns confirmation;
(4) after copy reading equipment MCU receives confirmation, send the initial data needing to transmit to copy reading equipment ESAM, copy reading equipment ESAM encrypts it after receiving initial data, and the data after encryption are returned to copy reading equipment MCU;
(5) copy reading equipment MCU receives the data after encryption, sends data to electric energy meter MCU by physical transport layer;
(6), after electric energy meter MCU receives enciphered data, access electric energy meter ESAM, starts data deciphering application, and electric energy meter ESAM confirms that errorless backward electric energy meter MCU returns confirmation;
(7) electric energy meter MCU to receive encrypted data transmission after confirmation to electric energy meter ESAM to decrypt data, and the initial data after deciphering returns to electric energy meter MCU;
(8) electric energy meter MCU receives the initial data after deciphering, passes to electric energy meter, after electric energy meter receives data, returns corresponding result data to electric energy meter MCU according to the instruction responded in data;
(9) electric energy meter MCU accesses electric energy meter ESAM, starts data encryption, and electric energy meter ESAM confirms that errorless backward electric energy meter MCU returns confirmation;
(10) after electric energy meter MCU receives confirmation, the initial data needing to transmit is sent to electric energy meter ESAM, after electric energy meter ESAM receives initial data, utilize the cryptographic algorithm of its inside to encrypt initial data, and the data after encryption are returned to electric energy meter MCU;
(11) electric energy meter MCU receives the data after encryption, sends data to copy reading equipment MCU by physical transport layer;
(12) after copy reading equipment MCU receives enciphered data, access copy reading equipment ESAM, start data deciphering, copy reading equipment ESAM confirms that errorless backward copy reading equipment MCU returns confirmation;
(13) copy reading equipment MCU to receive encrypted data transmission after confirmation to copy reading equipment ESAM, copy reading equipment ESAM receives enciphered data, utilize the decipherment algorithm of its inside to decrypt data, and the initial data after deciphering is returned to copy reading equipment MCU.
Preferably, described identity verify comprises:
(1) copy reading equipment sends connection request and random number R 1 to electric energy meter;
(2) by electric energy meter, R1 is encrypted, produces random number R 2, R3 simultaneously
1ciphertext, by the ciphertext of R1, R2, R3
1ciphertext send to copy reading equipment;
(3) copy reading device decrypts comparison R1, if both are consistent, then completes the authentication of copy reading equipment to electric energy meter, deciphering R3
1ciphertext stores R3
1, encryption R2, produces R3
2ciphertext, by R3
1, R3
2store as arranging key R3, and by the ciphertext of R2, R3
2ciphertext send to electric energy meter;
(4) electric energy meter deciphering comparison R2, if both are consistent, then completes the authentication of electric energy meter to copy reading equipment, deciphering R3
2ciphertext stores R3
2, by R3
1, R3
2store as arranging key R3, and feed back authentication result to copy reading equipment.
Preferably, described electric energy meter comprises communication module and metering units;
Described communication module comprises electric energy meter ESAM and electric energy meter MCU.
Compared with prior art, the present invention has following beneficial effect:
1. the combine with technique symmetric and unsymmetric algorithm that accesses to your password carries out bidirectional identification discriminating, i.e. equipment identities legitimate verification, the checking of electric energy meter identity legitimacy.
2. the safety of communication data is ensure that by encryption and decryption technology.
3. produce encryption process key dispersion factor used by key agreement mechanisms, ensure that the fail safe of the data of equipment, but do not affect communication efficiency.
Accompanying drawing explanation
Fig. 1 is the safety knot composition of localized copy reading equipment provided by the invention and electric energy meter;
Fig. 2 is the identity verify flow process of localized copy reading equipment provided by the invention and intelligent meter;
Fig. 3 is the encryption and decryption flow process of localized copy reading equipment provided by the invention and intelligent meter.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the safety knot composition of localized copy reading equipment provided by the invention and electric energy meter; intelligent electric energy meter mainly comprises communication module and metering units; wherein the security protection of data encryption in communication module is provided by ESAM security module, and ESAM module is carried out protecting data encryption, ensured confidentiality, the completeness and efficiency of transmission data.The security protection of localization copy reading device data encryption is provided by ESAM security module, and ESAM module is carried out protecting data encryption, ensured confidentiality, the completeness and efficiency of transmission data.
Fig. 2 is the identity verify flow process of localized copy reading equipment provided by the invention and intelligent meter, and identity verify adopts the bidirectional identity authentication flow process based on the inside and outside certification of symmetric key, comprising:
(1) copy reading equipment sends connection request and random number R 1 to electric energy meter;
(2) by electric energy meter, R1 is encrypted, produces random number R 2, R3 simultaneously
1ciphertext, by the ciphertext of R1, R2, R3
1ciphertext send to copy reading equipment;
(3) copy reading device decrypts comparison R1, if both are consistent, then completes the authentication of copy reading equipment to electric energy meter, deciphering R3
1ciphertext stores R3
1, encryption R2, produces R3
2ciphertext, by R3
1, R3
2store as arranging key R3, and by the ciphertext of R2, R3
2ciphertext send to electric energy meter;
(4) electric energy meter deciphering comparison R2, if both are consistent, then completes the authentication of electric energy meter to copy reading equipment, deciphering R3
2ciphertext stores R3
2, by R3
1, R3
2store as arranging key R3, and feed back authentication result to copy reading equipment.
Security module is applied to electric energy meter and localized copy reading equipment by this method, integrated domestic cryptographic algorithm SM1, SM2, SM3 algorithm, and in security module, store up many keys, the function of every bar key is different, encryption, data deciphering etc. when being for reading identity verify, key agreement, data respectively.
When local device reading power meters, electric energy meter and equipment differentiate the legitimacy of the other side's identity mutually, after identity verify passes through, both sides carry out key agreement, and the communication data between double secret key intelligent meter through consultation and local copy reading equipment carries out all data encryption and decryption.The ciphertext copy reading order that electric energy meter accepting device sends, by agreement copy reading data after deciphering, ciphertext, to data encryption, is sent to copy reading equipment by security module, and equipment is deciphered by security module after accepting, and obtains needing data clear text.
Fig. 3 is the encryption and decryption flow chart of localized copy reading equipment and intelligent meter, mainly comprises:
(1) localized copy reading equipment MCU initiates data communications requests, and transfer of data starts.
(2) localized copy reading equipment MCU accesses localized copy reading equipment ESAM, starts data encryption, and localized copy reading equipment ESAM confirms that errorless backward localized copy reading equipment MCU returns confirmation.
(3) after localized copy reading equipment MCU receives confirmation, the initial data needing to transmit is sent to localized copy reading equipment ESAM, after localization copy reading equipment ESAM receives initial data, utilize the cryptographic algorithm of its inside to encrypt initial data, and the data after encryption are returned to localized copy reading equipment MCU.
(4) localized copy reading equipment MCU receives the data after encryption, sends data to electric energy meter MCU by physical transport layer.
(5), after electric energy meter MCU receives enciphered data, access electric energy meter ESAM, starts data deciphering, and electric energy meter ESAM confirms that errorless backward electric energy meter MCU returns confirmation.
(6) electric energy meter MCU to receive after confirmation by encrypted data transmission to electric energy meter ESAM, and electric energy meter ESAM receives enciphered data, utilizes the decipherment algorithm of its inside to decrypt data, and the initial data after deciphering is returned to electric energy meter MCU.
(7) electric energy meter MCU receives the initial data after deciphering, passes to electric energy meter, after electric energy meter receives data, returns corresponding result data to electric energy meter MCU according to the instruction responded in data.
(8) electric energy meter MCU accesses electric energy meter ESAM, starts data encryption, and electric energy meter ESAM confirms that errorless backward electric energy meter MCU returns confirmation.
(9) after electric energy meter MCU receives confirmation, the initial data needing to transmit is sent to electric energy meter ESAM, after electric energy meter ESAM receives initial data, utilize the cryptographic algorithm of its inside to encrypt initial data, and the data after encryption are returned to electric energy meter MCU.
(10) electric energy meter MCU receives the data after encryption, sends data to localized copy reading equipment MCU by physical transport layer.
(11) after localized copy reading equipment MCU receives enciphered data, access localized copy reading equipment ESAM, start data deciphering, localized copy reading equipment ESAM confirms that errorless backward localized copy reading equipment MCU returns confirmation.
(12) localized copy reading equipment MCU to receive encrypted data transmission after confirmation to localized copy reading equipment ESAM, localization copy reading equipment ESAM receives enciphered data, utilize the decipherment algorithm of its inside to decrypt data, and the initial data after deciphering is returned to localized copy reading equipment MCU.
(13), after localized copy reading equipment receives data, namely complete once localized copy reading equipment and communicate with the data encryption of two-way interaction intelligent electric energy meter.
Finally should be noted that: above embodiment is only for illustration of the technical scheme of the application but not the restriction to its protection range; although with reference to above-described embodiment to present application has been detailed description; those of ordinary skill in the field are to be understood that: those skilled in the art still can carry out all changes, amendment or equivalent replacement to the embodiment of application after reading the application; but these change, revise or be equal to replacement, all applying within the claims awaited the reply.
Claims (3)
1. a data ciphering method for two-way interaction intelligent electric energy meter, is characterized in that, described method comprises:
(1) copy reading equipment and electric energy meter carry out identity verify mutually;
(2) copy reading equipment MCU sends data communications requests, starts transfer of data;
(3) copy reading equipment MCU accesses copy reading equipment ESAM, starts data encryption application, and copy reading equipment ESAM confirms that errorless backward copy reading equipment MCU returns confirmation;
(4) after copy reading equipment MCU receives confirmation, send the initial data needing to transmit to copy reading equipment ESAM, copy reading equipment ESAM encrypts it after receiving initial data, and the data after encryption are returned to copy reading equipment MCU;
(5) copy reading equipment MCU receives the data after encryption, sends data to electric energy meter MCU by physical transport layer;
(6), after electric energy meter MCU receives enciphered data, access electric energy meter ESAM, starts data deciphering application, and electric energy meter ESAM confirms that errorless backward electric energy meter MCU returns confirmation;
(7) electric energy meter MCU to receive encrypted data transmission after confirmation to electric energy meter ESAM to decrypt data, and the initial data after deciphering returns to electric energy meter MCU;
(8) electric energy meter MCU receives the initial data after deciphering, passes to electric energy meter, after electric energy meter receives data, returns corresponding result data to electric energy meter MCU according to the instruction responded in data;
(9) electric energy meter MCU accesses electric energy meter ESAM, starts data encryption, and electric energy meter ESAM confirms that errorless backward electric energy meter MCU returns confirmation;
(10) after electric energy meter MCU receives confirmation, the initial data needing to transmit is sent to electric energy meter ESAM, after electric energy meter ESAM receives initial data, utilize the cryptographic algorithm of its inside to encrypt initial data, and the data after encryption are returned to electric energy meter MCU;
(11) electric energy meter MCU receives the data after encryption, sends data to copy reading equipment MCU by physical transport layer;
(12) after copy reading equipment MCU receives enciphered data, access copy reading equipment ESAM, start data deciphering, copy reading equipment ESAM confirms that errorless backward copy reading equipment MCU returns confirmation;
(13) copy reading equipment MCU to receive encrypted data transmission after confirmation to copy reading equipment ESAM, copy reading equipment ESAM receives enciphered data, utilize the decipherment algorithm of its inside to decrypt data, and the initial data after deciphering is returned to copy reading equipment MCU.
2. data ciphering method as claimed in claim 1, it is characterized in that, described identity verify comprises:
(1) copy reading equipment sends connection request and random number R 1 to electric energy meter;
(2) by electric energy meter, R1 is encrypted, produces random number R 2, R3 simultaneously
1ciphertext, by the ciphertext of R1, R2, R3
1ciphertext send to copy reading equipment;
(3) copy reading device decrypts comparison R1, if both are consistent, then completes the authentication of copy reading equipment to electric energy meter, deciphering R3
1ciphertext stores R3
1, encryption R2, produces R3
2ciphertext, by R3
1, R3
2store as arranging key R3, and by the ciphertext of R2, R3
2ciphertext send to electric energy meter;
(4) electric energy meter deciphering comparison R2, if both are consistent, then completes the authentication of electric energy meter to copy reading equipment, deciphering R3
2ciphertext stores R3
2, by R3
1, R3
2store as arranging key R3, and feed back authentication result to copy reading equipment.
3. data ciphering method as claimed in claim 1, it is characterized in that, described electric energy meter comprises communication module and metering units;
Described communication module comprises electric energy meter ESAM and electric energy meter MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980272.7A CN105577386A (en) | 2015-12-23 | 2015-12-23 | Data encryption method of bilateral interaction intelligent electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980272.7A CN105577386A (en) | 2015-12-23 | 2015-12-23 | Data encryption method of bilateral interaction intelligent electric energy meter |
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| Publication Number | Publication Date |
|---|---|
| CN105577386A true CN105577386A (en) | 2016-05-11 |
Family
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| CN201510980272.7A Pending CN105577386A (en) | 2015-12-23 | 2015-12-23 | Data encryption method of bilateral interaction intelligent electric energy meter |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107819778A (en) * | 2017-11-17 | 2018-03-20 | 江苏林洋能源股份有限公司 | A kind of electric energy meter credential initialization method using tls protocol |
| CN108416206A (en) * | 2017-02-10 | 2018-08-17 | 北京华大智宝电子***有限公司 | A kind of safety certification control device and data transmission method |
| CN108717173A (en) * | 2018-05-15 | 2018-10-30 | 黑龙江省电工仪器仪表工程技术研究中心有限公司 | A kind of method that intelligent electric energy meter data are traced to the source |
| CN109598132A (en) * | 2018-11-20 | 2019-04-09 | 华立科技股份有限公司 | Electric energy meter and its date storage method |
| CN110446177A (en) * | 2019-08-20 | 2019-11-12 | 杭州安恒信息技术股份有限公司 | Communication means, the apparatus and system of Internet of Things gauge table |
| CN110636392A (en) * | 2019-09-23 | 2019-12-31 | 宁波三星医疗电气股份有限公司 | Meter reading method, electric power acquisition terminal and electric meter |
| CN110765475A (en) * | 2019-10-24 | 2020-02-07 | 华立科技股份有限公司 | Virtual electric meter data encryption method, encryption device and encryption system |
| CN115201561A (en) * | 2021-04-09 | 2022-10-18 | 浙江正泰仪器仪表有限责任公司 | Electric energy meter data transmission system, control method and electric energy meter |
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| CN110636392A (en) * | 2019-09-23 | 2019-12-31 | 宁波三星医疗电气股份有限公司 | Meter reading method, electric power acquisition terminal and electric meter |
| CN110765475A (en) * | 2019-10-24 | 2020-02-07 | 华立科技股份有限公司 | Virtual electric meter data encryption method, encryption device and encryption system |
| CN115201561A (en) * | 2021-04-09 | 2022-10-18 | 浙江正泰仪器仪表有限责任公司 | Electric energy meter data transmission system, control method and electric energy meter |
| CN115201561B (en) * | 2021-04-09 | 2023-10-24 | 浙江正泰仪器仪表有限责任公司 | Electric energy meter data transmission system, control method and electric energy meter |
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