Dynamic Wireless Access Point Configuration for Intermodal Containers
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Solution Overview
Problem
Accessing and managing the computer systems of intermodal shipping containers, particularly refrigerated ones, is challenging due to their stacked and closely packed configurations, and security concerns arise from wireless connectivity, especially in disconnected environments like cargo ships where physical security measures are limited.
Innovation Solution
A method and system for dynamic wireless network configuration using a rolling Service Set Identifier (SSID) generated by a password-based key derivation function, where a token obtained through physical interaction with the container is used to derive a unique identifier and passcode for secure remote access, ensuring only authorized users can access the container's computer system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If containers are stacked closely together to maximize shipping capacity, then the quantity of containers that can be transported is improved, but the ease of accessing individual container computer systems deteriorates
Solution Approach 1:
The patent replaces physical/mechanical access requirements with wireless communication technology. Instead of needing physical proximity to a container to access its computer system, users can connect remotely via wireless networks (WiFi, Bluetooth, cellular). The system generates dynamic wireless network credentials (SSIDs, passcodes) that allow remote access to container computers without physical contact, effectively substituting mechanical access with electromagnetic field-based communication.
2Ease of operation
If wireless connectivity is enabled for remote access to container computers, then the ease of operation is improved, but security vulnerabilities increase due to potential unauthorized access
Solution Approach 1:
The patent implements dynamic credentials that change over time rather than static credentials. The system generates SSIDs and passcodes that are valid only for specific time periods and automatically expire or change after use. This dynamic approach ensures that even if credentials are compromised, the window for unauthorized access is limited. The credentials are regenerated periodically or after each successful connection, maintaining security while enabling remote access.
Solution Approach 2:
The system changes key security parameters (SSID, passcode, validity period) dynamically based on time, usage, and security requirements. Instead of using fixed network credentials, the system generates unique credentials with specific validity periods and automatically updates them. This parameter changes approach allows the system to adapt security settings in real-time, balancing accessibility with security protection.
3Device complexity
If static credentials are used for wireless access, then the device complexity is reduced, but the reliability of security deteriorates over time
Solution Approach 1:
The patent implements periodic credential regeneration where access credentials (SSIDs and passcodes) are automatically updated at set intervals or after each successful connection. This periodic action ensures that credentials do not remain static and vulnerable indefinitely. The system maintains a schedule for credential rotation, automatically generating new credentials and invalidating old ones, which sustains security effectiveness without requiring complex manual intervention.
Data Source
AI summary
Methods and systems for dynamic wireless network configuration are provided. Aspects include receiving, by an application on a user device, a token, deriving, by the application, a unique identifier and passcode based at least in part on the token, and controlling remote access to a first computer system based on the unique identifier and passcode.