Reverse Proxy Switching for Secure Moving-Body Communication
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Solution Overview
Problem
Existing communication control systems for moving bodies, such as vehicles, face challenges in enhancing security against unauthorized access to information processing devices that receive data from multiple moving bodies, as current techniques do not adequately increase the difficulty of accessing these systems.
Innovation Solution
A communication control system that employs a proxy operation control unit to select and manage reverse proxy devices based on scenario information including IP addresses, port numbers, and time points, thereby controlling the operation of these devices to secure data transmission between moving body information processing devices and mounted devices, enhancing the security by changing the IP addresses and port numbers used for important information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed IP addresses and port numbers are used for reverse proxy devices, then communication stability is improved, but security against unauthorized access deteriorates
Solution Approach 1:
The patent implements dynamic IP address and port number assignment for reverse proxy devices based on scenario information. Instead of fixed network parameters, the system selects different IP addresses and port numbers from predefined scenarios corresponding to different time periods, making the communication endpoints changeable and unpredictable to malicious third parties while maintaining stable communication within the authorized system.
Solution Approach 2:
The system changes network parameters (IP addresses and port numbers) based on time-based scenario information. Each scenario contains specific IP address and port number combinations valid for particular time periods, allowing the reverse proxy devices to operate on different network parameters at different times, thereby enhancing security while preserving communication reliability.
2Object-affected harmful factors
If multiple reverse proxy devices with different IP addresses and port numbers are managed, then security is improved, but device complexity increases
Solution Approach 1:
The communication control device serves as an intermediary that manages multiple reverse proxy devices. It stores scenario information containing IP addresses and port numbers for multiple reverse proxy devices, selects appropriate scenarios based on time information, and controls the operation of corresponding reverse proxy devices. This centralizes the complexity of managing multiple devices with different network parameters, making the system secure without requiring complex distributed management.
Solution Approach 2:
The communication control device performs multiple functions: it manages scenario information for multiple reverse proxy devices, selects scenarios based on time information, controls reverse proxy device operations, and transmits scenario information to mounted devices. This multi-functional approach consolidates the complexity of managing multiple reverse proxy devices into a single control entity.
3Reliability
If scenario information is transmitted to mounted devices, then mounted devices can securely connect to the correct reverse proxy devices, but communication protocol complexity increases
Solution Approach 1:
The communication control device transmits scenario information containing IP addresses and port numbers to mounted devices in advance, before the mounted devices need to connect to reverse proxy devices. This preliminary provision of connection information allows mounted devices to autonomously and accurately connect to the correct reverse proxy devices without requiring complex real-time negotiation or discovery protocols.
Data Source
AI summary
A communication control device selects, based on scenario information, one or more of a plurality of reverse proxy devices that transfer information transmitted and received between an information processing device and a mounted device of a moving body. The communication control device performs operation control of the selected reverse proxy device. The communication control device selects the scenario information used for operation of the reverse proxy device based on an operation start signal transmitted from the mounted device, and transmits the scenario information to the mounted device.