Key generation and encryption method for industrial control system

A technology for key generation and industrial control system, applied in the field of cryptography, which can solve problems such as cost and power consumption sensitivity, improve network security and local security protection capabilities, prevent key leakage and loss, and save transformation costs.

Pending Publication Date: 2022-04-08
CHINA THREE GORGES CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application of encryption in the field of industrial control security is becoming more and more extensive. According to the traditional encryption system, it is necessary to integrate special random number chips and encryption chips in industrial control or Internet of Things terminal equipment to ensure the true randomness of random numbers and the security of key storage. However, terminal industrial control products are very sensitive to cost and power consumption due to their product characteristics

Method used

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  • Key generation and encryption method for industrial control system
  • Key generation and encryption method for industrial control system
  • Key generation and encryption method for industrial control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Such as figure 1 As shown, a key generation method for industrial control system, it includes the following steps:

[0032] Step 1: Select the physical source of the random number;

[0033] Step 2: Generate random numbers;

[0034] In step 2, when generating random numbers, include the following patterns:

[0035] Mode 1) When the number of optional random number source devices is greater than M pieces, the physical characteristic data of M source devices are randomly selected from N available physical components and combined into a physical random number source, and the aggregated physical random data Get the target true random number;

[0036] Mode 2) When the number of optional random number source devices is less than M pieces, a software random number source is introduced, and the target true random number is obtained by combining the software random number source and physical random data;

[0037] Step 3: Generate a key from a random number.

[0038] In step ...

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PUM

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Abstract

The invention discloses a key generation and encryption method for an industrial control system. The key generation and encryption method comprises the following steps of: 1, selecting a physical source of a random number; 2, generating a random number; in the step 2, when the random number is generated, the following modes are included: (1) when the number of selectable random number source devices is larger than M, physical characteristic data of M source devices are randomly selected from N available physical components and combined into a physical random number source, and a target true random number is obtained from the gathered physical random data; (2) when the number of selectable random number source devices is smaller than M, a software random number source is introduced, and the software random number source and physical random data are combined to obtain a target true random number, and (3) a secret key is generated through the random number.

Description

technical field [0001] The invention belongs to the technical field of encryption, and in particular relates to a key generation and encryption method for an industrial control system. Background technique [0002] Keys are the core of cryptographic technology. Keys in cryptographic applications are generated based on random numbers. Random number generation requires a dedicated random number chip, and key protection depends on a local cryptographic chip. At present, the application of cryptography in the field of industrial control security is becoming more and more extensive. According to the traditional cryptography system, it is necessary to integrate special random number chips and cryptographic chips in industrial control or IoT terminal equipment to ensure the true randomness of random numbers and the security of key storage. However, terminal industrial control products are very sensitive to cost and power consumption due to their product characteristics. Contents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/46G06F21/60G06F7/58
Inventor 张润时王峥瀛王乾王杰肖棋元于佳文王乐陶
Owner CHINA THREE GORGES CORPORATION
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