Mobile Device Security Controller for Wireless Traffic Inspection

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Solution Overview

Problem

Mobile devices face challenges in maintaining security when transitioning between wireless networks, as central firewalls cannot effectively monitor all wireless devices and malicious attackers can spoof access points, leading to potential data packet manipulation and eavesdropping.

Innovation Solution

A security surveillance system integrated into mobile devices with a security controller that inspects incoming data traffic against predefined rules, generating warnings and allowing for remedial actions, such as shutting down malicious data streams, to protect against unauthorized access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a central firewall is provided in the wireless network, then network-level security monitoring is improved, but it cannot effectively monitor traffic of all wireless devices due to spoofing attacks and network switching

Engineering Contradiction:

Improvenetwork security monitoringVSAvoidspoofing attacks and eavesdropping

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent divides the security monitoring function from the network level to the device level. Each mobile device is equipped with its own security surveillance system that independently monitors incoming data traffic, eliminating the single point of failure in central firewalls and providing distributed security coverage that cannot be bypassed by spoofing attacks.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a security controller as an intermediary component between the wireless interface and the control unit. This security controller intercepts and inspects all incoming data packets before they reach the main processor, acting as a local firewall that can identify and block malicious traffic regardless of source spoofing.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If security surveillance is integrated into each mobile device, then device-level security monitoring is improved, but device complexity increases

Engineering Contradiction:

Improvedevice security monitoringVSAvoidsecurity controller integration

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The security controller is designed as a multi-functional component that not only monitors incoming data traffic for security threats but also manages data packet routing and coordinates with the control unit for remedial actions. This universal approach consolidates multiple security functions into a single integrated component, minimizing the increase in device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11563753B2Security surveillance system and security surveillance method

Publication Date: 2023.01.24 ROHDE & SCHWARZ GMBH & CO KG

AI summary

A security surveillance system for a mobile device with a wireless interface and a control unit that is connected to the wireless interface comprises a security controller that is coupled to the wireless interface and that inspects at least data traffic incoming via the wireless interface at the mobile device according to a number, i.e. one or more, of predefined data rules, wherein the security controller generates a warning signal if the data traffic violates one of the predefined data rules, and a warning indicator that is coupled to the security controller and that generates a warning indication based on the warning signal.