Device Isolation Service for IoT Network Security
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Solution Overview
Problem
IoT devices with limited capabilities face challenges in securing communication and managing network traffic, leading to potential unauthorized access and interference from other devices.
Innovation Solution
Implementing a device isolation service that assigns individual devices to isolated virtual networks, limiting access to secure administrator networks, and managing network traffic to prevent device-to-device interaction and ensure secure communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If IoT devices are connected to a shared network, then network communication and device interaction are enabled, but network security and device isolation are compromised
Solution Approach 1:
The patent divides the shared network into multiple isolated virtual networks, with each IoT device assigned to its own dedicated virtual network. This segmentation allows devices to communicate with external networks while preventing direct device-to-device interaction, thus maintaining both network functionality and security isolation.
Solution Approach 2:
The patent introduces a network gateway as an intermediary component that manages all network traffic for isolated IoT devices. The gateway handles communication between the isolated virtual networks and external networks, eliminating the need for direct device-to-device communication while maintaining network accessibility.
2Object-affected harmful factors
If IoT devices are isolated to individual virtual networks, then network security is enhanced, but device complexity and configuration difficulty increase
Solution Approach 1:
The patent implements automatic virtual network assignment where the network gateway automatically creates and assigns isolated virtual networks to IoT devices upon connection. This self-service mechanism eliminates manual configuration requirements, allowing devices to be automatically isolated without increasing user burden or configuration complexity.
Solution Approach 2:
The network gateway performs multiple functions including traffic routing, device isolation, security filtering, and automatic virtual network management. By consolidating these functions into a single universal component, the system maintains security through complex isolation while presenting a simple unified interface to users.
3Use of energy by moving object
If IoT devices with limited capabilities are used, then energy consumption and resource usage are reduced, but security implementation and network management capabilities are weakened
Solution Approach 1:
The patent applies different security measures to different parts of the network architecture. Simple filtering rules are implemented at the network gateway level where resources are abundant, while IoT devices maintain minimal local security functionality. This distribution of security responsibilities allows low-power devices to operate securely without requiring sophisticated local security implementations.
Solution Approach 2:
The network gateway acts as a security intermediary that implements complex security policies, traffic filtering, and access control on behalf of resource-constrained IoT devices. This mediator approach enables devices with minimal capabilities to benefit from robust security enforcement without consuming additional local resources.
Data Source
AI summary
Systems and methods are described for implementing a device isolation service. A device isolation service creates and administers per-device virtual networks for individual computing devices, thereby isolating the computing devices from each other and limiting device-to-device communication. The device isolation service may further provide a monitored and access-controlled network that facilitates access to the isolated devices, thereby allowing “administrator” devices to access and administer devices while preventing a compromised device from seeing, probing, or compromising other devices on the network. The device isolation service may group devices by category or function, and may put devices that communicate with each other on the same virtual network while isolating other devices to different virtual networks.