Synchronous Industrial Machine Communication With Selective Encryption
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Solution Overview
Problem
Existing communication systems in industrial settings lack sufficient security, as they transmit data in plain text, making them vulnerable to tampering and snooping by malicious third parties.
Innovation Solution
A communication system where industrial machines capable of synchronous communication encrypt and decrypt data, using a combination of controllers and motor control apparatuses with integrated encryption chips to secure data transmission and reception, allowing for flexible encryption based on machine models and communication methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If data is transmitted in plain text to ensure ease of operation and compatibility, then communication simplicity is improved, but security against tampering and snooping deteriorates
Solution Approach 1:
The communication system segments data into encrypted and unencrypted portions. Critical data is encrypted using encryption keys, while non-critical data remains unencrypted. This allows selective application of security measures to different data types, maintaining communication simplicity for non-sensitive information while protecting sensitive data.
Solution Approach 2:
The system dynamically changes encryption parameters based on data types and communication requirements. Different encryption keys and algorithms are applied to different data streams, allowing the system to balance security needs with operational simplicity by adjusting encryption intensity according to specific communication contexts.
2Object-affected harmful factors
If encryption is applied to all data transmissions to improve security, then data protection is improved, but processing load and communication complexity increase
Solution Approach 1:
The system applies different security qualities to different parts of the communication system. Critical communication channels use strong encryption, while less sensitive channels use simpler or no encryption. This local differentiation reduces overall system complexity while maintaining necessary security levels for protected data.
Solution Approach 2:
Instead of encrypting all data uniformly, the system applies encryption selectively to only the portions of data that require protection. This partial action approach reduces processing load and communication complexity while still providing adequate protection for sensitive information.
3Reliability
If encryption and decryption operations are performed on all communications to prevent tampering, then reliability is improved, but processing time and operational speed decrease
Solution Approach 1:
The system changes encryption parameters dynamically based on communication priorities and data sensitivity. High-priority or sensitive communications receive full encryption protection, while lower-priority communications use reduced encryption or none at all, balancing reliability with communication speed.
Solution Approach 2:
The system applies encryption only when and where it is strictly necessary for maintaining reliability. By identifying critical communication points that require protection and applying encryption selectively to those points, the system maintains communication reliability for essential data while preserving overall communication speed.
Data Source
AI summary
A communication system, comprising a plurality of industrial machines configured to perform synchronous communication, wherein each of the plurality of industrial machines configured to: encrypt transmission data; transmit the encrypted transmission data to another industrial machine; receive encrypted reception data from the another industrial machine; and decrypt the encrypted reception data.