Industrial data encryption transmission method and system with multi-level security authentication

By implementing hierarchical authentication and dynamic key scheduling in encrypted industrial data transmission, combined with entropy calculation and Markov chain model, the problem of a single key distribution mode in traditional methods is solved, enabling dynamic changes in key state and improving the security and anti-cracking capability of data transmission.

CN121333546BActive Publication Date: 2026-07-14POLYHEX TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
POLYHEX TECH CO LTD
Filing Date
2025-09-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In traditional multi-level security authentication methods for encrypted transmission of industrial data, fixed layering and key distribution modes are difficult to self-match and adjust under different data characteristics and transmission states. The single key switching order is easily monitored and speculated. The encryption strategy lacks a perturbation mechanism, which leads to the expansion of security protection gaps in high-frequency access and abnormal traffic scenarios, increasing the risk of data interception and tampering.

Method used

By acquiring the security level identifier of industrial data, dividing the block sequence into authentication levels, combining entropy value calculation to filter high randomness keys, using the XOR operation of time stamp and identifier to adjust the key calling order, introducing the Markov chain model to calculate the key switching probability, and generating a dynamic encrypted transmission path configuration table, the key state can be continuously and dynamically changed.

Benefits of technology

It enhances the flexibility and anti-cracking capabilities of the encryption process, reduces the predictability of key usage patterns, weakens the exposure risk under continuous transmission, and ensures the security and stability of industrial data in multiple scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of data security, in particular to a multi-level security authentication industrial data encryption transmission method and system, comprising the following steps: collecting industrial data, comparing with a security level identification threshold, selecting an authentication level, generating a block sequence, calling a security level to obtain a key and verify randomness, generating a configuration scheme, extracting the key and time stamp XOR, comparing with a disturbance threshold, triggering adjustment to generate a call sequence, inputting a Markov chain to calculate a switching probability, executing mapping to generate a transmission path configuration table, encrypting the blocks layer by layer and packaging to generate a multi-level authentication encrypted message, in the present application, through hierarchical block differential authentication combined with entropy value screening high random key generation, layer configuration matching data characteristics are generated, time stamp and identifier XOR are used to judge the disturbance threshold trigger position adjustment to form a random call sequence, a probability model is introduced to calculate the switching probability to realize nonlinear key mapping dynamic change to weaken the predictability and improve the security and stability.
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Citation Information

Patent Citations

  • Dynamic encryption method and system, computer equipment and storage medium

    CN117131484A

  • Convergent Intelligence Fabric for Multi-Domain Orchestration of Distributed Agents with Hierarchical Memory Architecture and Quantum-Resistant Trust Mechanisms

    US20250259085A1