Network Intrusion Detection via Signal Strength Analysis
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Solution Overview
Problem
Existing network security methods, such as MAC address authorization and password protection, are vulnerable to unauthorized access through cloning or brute force attempts, necessitating improved systems to detect and prevent malicious network intrusions.
Innovation Solution
A computer-implemented method and system that identifies signals from devices attempting to access a network, determines signal strengths, and initiates security measures based on potentially malicious signal profiles, using machine-learning classification models to monitor and adjust policies for identifying suspicious access attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional MAC address authorization is used to secure the network, then network access control is simplified, but the system becomes vulnerable to MAC address cloning attacks
Solution Approach 1:
The patent segments the security verification process into multiple independent components: MAC address verification, signal strength detection, and signal profile analysis. Each component operates separately to provide layered security, where the MAC address filter provides basic access control while signal characteristics provide additional verification to detect cloning attempts.
Solution Approach 2:
The patent introduces signal strength and signal profile characteristics as intermediary verification mechanisms between the MAC address authorization and network access. These intermediaries provide additional validation layers that help distinguish legitimate devices from clones without directly compromising the MAC address authorization system.
2Reliability
If password protection is used to secure the network, then access security is improved, but the system becomes vulnerable to brute force attacks
Solution Approach 1:
The patent performs preliminary signal strength detection and signal profile analysis before allowing password verification to proceed. By pre-screening devices based on their signal characteristics, the system can identify and block potential brute force attackers before they expend resources attempting multiple password guesses.
Solution Approach 2:
The patent implements feedback mechanisms where signal strength measurements and signal profile analyses continuously monitor access attempts. This feedback allows the system to dynamically adjust security responses, such as blocking devices with suspicious signal patterns that exhibit brute force behavior, thereby protecting against repeated attack attempts.
3Measurement precision
If signal strength detection and signal profile analysis are added to enhance security, then detection accuracy improves, but system complexity increases
Solution Approach 1:
The patent makes the existing network access control system multi-functional by enabling it to perform both traditional MAC address verification and new signal characteristic analysis using the same infrastructure. The system can operate in multiple modes (basic MAC filtering, enhanced signal verification, or combined approaches) depending on security requirements, avoiding the need for completely separate systems.
Solution Approach 2:
The patent changes the verification parameters from solely MAC address matching to include signal strength thresholds and signal profile characteristics. By adjusting these parameters (such as setting minimum signal strength requirements or defining expected signal profile patterns), the system enhances detection accuracy while maintaining a relatively simple implementation that builds upon existing network infrastructure.
Data Source
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AI summary
The disclosed computer-implemented method for protecting against unauthorized network intrusions may include (1) identifying a signal received by one or more antennas of a network from a transceiver of a device attempting to access the network, (2) detecting one or more signal strengths of the signal received by the antennas of the network in connection with the attempt to access the network, (3) determining, based at least in part on the signal strengths of the signal, that the attempt to access the network is potentially malicious, and then in response to determining that the attempt to access the network is potentially malicious, (4) initiating at least one security measure to address the potentially malicious attempt to access the network. Various other methods, systems, and computer-readable media are also disclosed.