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Substation inspection robot data transmission encryption and decryption method and system

An inspection robot and data transmission technology, applied in the field of information security, can solve the problems of strong dependence on the center, high construction cost of PKICA, and not suitable for the data transmission security system of inspection robots, etc., to achieve efficient and safe data transmission, protection The effect of leaking

Active Publication Date: 2020-04-10
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the PKI CA system can solve the problem of updating the encryption key, the construction cost of PKICA is high and the center dependence is strong, so it is not suitable for the data transmission security system of inspection robots

Method used

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  • Substation inspection robot data transmission encryption and decryption method and system
  • Substation inspection robot data transmission encryption and decryption method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a data transmission encryption and decryption method for a substation inspection robot, such as figure 1 As shown, it includes the steps:

[0035] When the inspection robot uploads data to the information management system as the data sender, the uploaded data uses the SM4 encryption algorithm to encrypt the data, and uses the IPK digital envelope technology to realize the encrypted transmission of the session key. The encryption process specifically includes:

[0036] 1) The inspection robot calls the SDK of IPK to generate a random number r, 0

[0037] 2) Calculate the session key skey for data encryption, that is, skey=x mod n, where (x, y)=r. G, G is the base point of the elliptic curve, and mod is the modular operation;

[0038] 3) Use skey as the symmetric encryption key to perform SM4 encryption on the data to be uploaded to obtain the ciphertext to be uploaded, that i...

Embodiment 2

[0050] This embodiment provides a substation inspection robot data transmission encryption and decryption system, such as figure 2 As shown, it includes a data encryption module and a data decryption module; when the inspection robot uploads data to the information management system as the data sender, the inspection robot calls the data encryption module, and uses the data encryption module to encrypt the data; the information management system receives After inspecting the ciphertext data E(data) and session key ciphertext E(sk) sent by the inspection robot, use the data decryption module to decrypt.

[0051] Data encryption module: first use the receiver management server identification id and public key matrix PKM to calculate the receiver server's identification public key ipuk through the IPK mapping algorithm, then input the identification public key ipuk into the IPK USB shield to generate the session key sk, use Identify the public key ipuk to encrypt the session key...

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Abstract

The invention discloses a data transmission encryption and decryption method and system of a transformer substation inspection robot. The method provided by the invention comprises the following steps: when an inspection robot is used as a data sender to upload data to an information management system, the uploaded data is encrypted by adopting an SM4 encryption algorithm, and encrypted transmission of a session key is realized by adopting a digital envelope technology of IPK; the information management system serves as a data receiver, receives ciphertext data C and a digital envelope beta sent by the inspection robot, calls a pre-configured private key sk to open the digital envelope beta to obtain a session key, and decrypts the ciphertext C by using the session key through an SM4 algorithm to obtain original data data. According to the invention, the public key management problem is solved through an IPK recognition public key system, and direct point-to-point data transmission encryption can be realized. According to the invention, efficient and safe inspection robot data transmission is realized.

Description

technical field [0001] The invention relates to the field of information security, in particular to a data transmission encryption and decryption method and system for a substation inspection robot. Background technique [0002] Traditional substation monitoring and inspection is mainly through manual methods, which have disadvantages such as high labor intensity, low work efficiency, scattered detection quality, and single means. At the same time, manual inspections still have greater safety risks under geographical conditions such as plateaus, hypoxia, cold, or severe weather conditions. In particular, the data detected manually cannot be accurately and timely connected to the management information system. [0003] In order to meet the increasing requirements for power supply quality, more flexible and practical substation inspection robots are applied. The inspection robot not only plays the role of reducing staff and increasing efficiency, but also removes human facto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/06H04L9/30H04L9/08G07C1/10
CPCH04L63/0435H04L9/0643H04L9/3066H04L9/0869H04L9/0822H04L9/0877H04L9/0897G07C1/10Y04S40/20
Inventor 孙歆韩嘉佳李沁园吕磅李霁远汪自翔孙昌华戴桦
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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