A method, system and device for improving the safety of smart electric energy meters
A smart energy meter and security technology, which is applied in the direction of secure communication device, encryption device with shift register/memory, transmission system, etc., can solve the problem of data confidentiality, integrity and availability of smart energy meter cannot be guaranteed, etc. problem, to achieve the effect of ensuring confidentiality and improving security
Active Publication Date: 2021-02-23
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST +1
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[0004] The purpose of this application is to provide a method, system and device for improving the security of smart electric energy meters, so as to solve the problem that the confidentiality, integrity and availability of existing intelligent electric energy meter data cannot be guaranteed
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[0057] refer to figure 1 , the embodiment of the present application provides a method for improving the security of the smart electric energy meter, including:
[0058] Step S1, obtaining the key provided by U-Key;
[0059]Step S2, receiving ciphertext data and signature data, the ciphertext data is obtained by the client through encrypting the plaintext data to be sent, and the signature data is the first summary data of the ciphertext data extracted by the client , obtained by encrypting the first summary data according to the key;
[0060] It should be noted that the client uses the RSA digital signature algorithm to extract the first abstract data from the ciphertext data. The RSA digital signature algorithm uses the RSA algorithm to implement digital signatures. The RSA algorithm is a public-key cryptographic algorithm. The implementation of the RSA algorithm includes generating an RSA key and processing data with RSA encryption rules and decryption rules.
[0061] S...
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The application discloses a method, system and device for improving the security of an intelligent electric energy meter. The method includes obtaining the key provided by U-Key; receiving ciphertext data and signature data; decrypting the signature data according to the key to obtain the first summary data; extracting the second summary data in the ciphertext data; comparing the first summary data and the second abstract data to obtain the verification result; send the verification result to the smart energy meter to instruct it to perform corresponding operations according to the verification result and return information to the client. The system includes a server, a client computer, an intelligent electric energy meter, a U-Key, an encryption machine, a concentrator, a receiving channel and a reporting channel. The device includes an acquisition unit, a reception unit, a decryption unit, an extraction unit, a comparison unit and a sending unit. The embodiment of this application adopts a third-party verification method to prevent data tampering and false data from harming the smart energy meter, and ensure the security, confidentiality, integrity and availability of the data sent by the client to the smart energy meter.
Description
technical field [0001] The present application relates to the technical field of electric power equipment, in particular to a method, system and device for improving the security of a smart electric energy meter. Background technique [0002] With the development of smart grid, smart energy meter has also been developed rapidly. A smart meter is a metering instrument embedded with a security chip and has multiple communication channels for two-way communication. People pay more and more attention to the communication data and information security of smart energy meters. [0003] The security of smart meters is mainly manifested in the confidentiality, integrity and availability of data. At present, the data interaction between smart meters and systems in China adopts a two-way communication mode. Although the interactive data is ciphertext, there are certain limitations. Potential safety hazards, if the system is hacked artificially, leading to key leakage, then the confid...
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IPC IPC(8): H04L29/06H04L9/32H04L9/06H04L9/08
CPCH04L9/0643H04L9/0877H04L9/3239H04L9/3249H04L63/0428H04L63/062H04L63/12H04L63/123
Inventor 魏龄曹敏周年荣黄星张林山赵旭邹京希唐立军沈鑫翟少磊
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST