Encryption Retransmission Architecture for Resilient IIoT Communications
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Solution Overview
Problem
Existing communication technologies between devices lack resilience against attacks, necessitating an encryption retransmission Industrial Internet of Things (IIoT) device for enhanced security.
Innovation Solution
The encryption retransmission IIoT device includes sensors, processing units, network switches, and encryption retransmission devices with encryption units and communication units, employing a protocol-free encryption mechanism to establish secure, cryptographically bound communications between trusted devices through connectionless headers and complex headers, ensuring data integrity and isolation from untrusted networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional communication technologies are used for device communication, then device connectivity is established, but resiliency against attacks is insufficient
Solution Approach 1:
The communication system is segmented into multiple independent encryption retransmission devices, each handling specific encryption and communication functions. This segmentation isolates attack vectors to individual devices while maintaining overall system security through distributed architecture.
Solution Approach 2:
Encryption retransmission devices serve as intermediary components between trusted and untrusted networks. These intermediaries perform protocol-free encryption and header manipulation to protect data while maintaining communication flow, resolving the contradiction between security and complexity.
2Reliability
If encryption retransmission devices are deployed for secure communication, then data confidentiality is improved, but device complexity increases
Solution Approach 1:
The encryption function is extracted as a separate, dedicated component within the communication system. Encryption units handle cryptographic operations independently from communication units, simplifying the overall design by separating security functions from communication functions while maintaining strong confidentiality.
Solution Approach 2:
The encryption retransmission devices perform multiple functions including encryption, decryption, header manipulation, and protocol translation within a single unified device. This multi-functionality reduces the number of separate components needed, thereby managing complexity while maintaining comprehensive security.
3Reliability
If protocol-free encryption mechanism is implemented, then security against unauthorized access is enhanced, but communication protocol compatibility is reduced
Solution Approach 1:
The encryption retransmission devices act as protocol-agnostic intermediaries that translate between encrypted data and standard communication protocols. By operating at the data link layer and manipulating headers rather than application-layer protocols, these devices maintain compatibility across different communication standards while enforcing strong security.
Solution Approach 2:
The system changes the parameter of encryption from protocol-specific to protocol-free by operating on raw data packets before protocol encapsulation. This parameter change allows the same encryption mechanism to work across multiple protocols without requiring protocol-specific security implementations, balancing security and adaptability.
Data Source
AI summary
An encryption retransmission Industrial Internet of Things (IIoT) device for providing resiliency against attacks comprises a sensor for generating sensor data, a processing unit for analyzing the sensor data to generate analytics data, a network switch comprising ports, and encryption retransmission devices connected to the network switch through the ports. The network switch identifies a first external device and a first encryption retransmission device and transfers the analytics data to a first encryption retransmission device comprising a first encryption unit for encrypting an egressing native packet comprising the analytics data to create an encrypted egressing native packet, adding a connectionless header to the encrypted egressing native packet to form an egressing connectionless datagram and a first communication unit for receiving the egressing connectionless datagram and adding a complex header to the egressing connectionless datagram for forming an egressing packet for delivery to a first external encryption retransmission device.