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Electric power data privacy communication method based on hybrid encryption algorithm

A power data and hybrid encryption technology, which is applied to the usage of multiple keys/algorithms, secure communication devices, public keys for secure communication, etc., to promote collaborative innovation and application deployment, promote promotion and application, and increase complexity Effect

Pending Publication Date: 2021-03-16
国网重庆市电力公司营销服务中心
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  • Abstract
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  • Claims
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Problems solved by technology

However, operations such as big data query, statistics, analysis and calculation also need to be performed in the cloud, which brings new challenges to traditional encryption technology

Method used

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  • Electric power data privacy communication method based on hybrid encryption algorithm
  • Electric power data privacy communication method based on hybrid encryption algorithm

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Embodiment approach

[0042] S1. The sender randomly generates a session key Key for AES encryption, the session key Key is 128 bits, and uses the session key Key to encrypt the plaintext m of the power data to be transmitted to obtain the ciphertext M. Among them, the power data to be transmitted in plain text m includes: dispatching operation data, distribution network planning data, basic data such as power distribution, power generation, power consumption, and power transmission.

[0043] Further, in some embodiments, encrypting the plaintext m of the power data to be transmitted to obtain the ciphertext M specifically includes the following steps:

[0044] S11. Preprocess the plaintext m of the power data to be transmitted: group the plaintext m of the power data to be transmitted. The length of each group of data is 128 bits. If the number is less than 128 bits, fill it with spaces. Each group includes 4 lines, each line 4 bytes, a group is called a state matrix, and the writing and reading o...

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Abstract

The invention relates to the technical field of communication data security, in particular to an electric power data private communication method based on a hybrid encryption algorithm. The method comprises the following steps that a sender randomly generates an AES session key and encrypts an electric power data plaintext m to be transmitted by using the session key to obtain a ciphertext M; thesender encrypts by adopting an elliptical encryption algorithm session key to obtain an encrypted key, and uses a digital signature; the ciphertext M, the encrypted key and the digital signature are sent to a receiver; the receiver decrypts the session key by using an ECC decryption algorithm and performs signature verification; if the signature verification is passed, the ciphertext M is decrypted by using the session key to obtain original power data m; if the signature does not pass, the error information is returned. Through hybrid encryption, the confidentiality and integrity of the dataare ensured, the encryption and decryption speeds are increased, meanwhile, the problems of key management and distribution of an AES encryption algorithm are solved, and the power data communicationprocess is optimized.

Description

technical field [0001] The invention relates to the technical field of communication data security, in particular to a power data privacy communication method based on a hybrid encryption algorithm. Background technique [0002] In recent years, with the increasingly severe global energy problems, countries all over the world have carried out research work on smart grids. The smart grid is a panoramic real-time system covering the entire production process of the power system (including power generation, power transmission, power transformation, power distribution, power consumption, and dispatching). Based on the communication network, through the application of sensing and measurement technology, equipment technology, control method and decision support technology, the goals of reliability, safety, economy, high efficiency, environmental friendliness and safe use of the power grid are realized. Its main features include automatic Healing, motivating, resisting attacks, pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/14H04L9/32H04L9/30H04L29/06
CPCH04L9/14H04L9/3247H04L9/3066H04L63/0478
Inventor 王凌宇傅宏杨云
Owner 国网重庆市电力公司营销服务中心
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