Wireless Wake-On-LAN Security Switching via Power Status
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Solution Overview
Problem
Existing wireless communication systems using Wake-On-LAN (WOL) face challenges in maintaining high security levels due to the need for fixed encryption keys, which are less reliable than dynamic key systems, making it difficult to realize WOL with high-level security without hardware changes and dedicated drivers.
Innovation Solution
A wireless system that switches between fixed key and dynamic key security systems based on the terminal's power status, using a monitor device to switch from a dynamic key system to a fixed key system during power-off and back to a dynamic key system during power-on, allowing for secure WOL operations without requiring hardware changes or dedicated drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed key security system (WEP) is used to enable WOL, then WOL functionality is achieved, but security reliability deteriorates
Solution Approach 1:
The patent applies dynamics by making the security key system changeable based on terminal status. The system dynamically switches between fixed key mode (during power-off for WOL) and dynamic key mode (during power-on for normal operation), allowing the security mechanism to adapt to different operational states rather than remaining static
Solution Approach 2:
The patent changes the security parameter (encryption key type) based on the terminal's power status. When the terminal is powered off, it uses fixed key encryption; when powered on, it transitions to dynamic key encryption. This parameter change resolves the contradiction by allowing WOL functionality with fixed keys while maintaining high security with dynamic keys during active operation
2Reliability
If a dynamic key security system (TKIP/AES) is used to improve security, then security reliability is improved, but WOL functionality deteriorates
Solution Approach 1:
The patent segments the operational periods into two distinct phases: power-off state for WOL activation using fixed key security, and power-on state for normal operation using dynamic key security. This segmentation allows each phase to use the most appropriate security mechanism without compromising the other
Solution Approach 2:
The patent performs preliminary action by pre-configuring the terminal to use fixed key security mode before power-off occurs. This preliminary setup enables WOL functionality to work properly, and then the system transitions to dynamic key security after power-on, ensuring both functionalities are satisfied at different times
3Reliability
If hardware changes and dedicated drivers are implemented to support high-level security with WOL, then security reliability is improved, but device complexity increases
Solution Approach 1:
The patent makes the existing hardware and driver universal by enabling them to support both fixed key and dynamic key security systems. The same wireless communication hardware and driver can operate in WOL mode with fixed keys and in normal mode with dynamic keys, eliminating the need for dedicated hardware or drivers for high-level security
Data Source
AI summary
A wireless system realizes a WOL by including layers for switching security systems with a security level enhanced. The wireless system for activating a terminal through a radio base station from a remote area includes: a monitor device for monitoring the status of power supply of the terminal; and a security switch device for switching the security system of the terminal based on the status by switching to a fixed key security system when the status is changed to power-off and switching to a dynamic key security system when the status is changed to power-on.