Mobile Device Port Access Control for System Information Security
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Solution Overview
Problem
Existing mobile communications devices lack the ability to selectively control data throughput through their communications ports, leading to potential unauthorized modifications of system-provider information, and there is a need to ensure that only authorized requests from wireless telecommunications networks can modify this information.
Innovation Solution
Implementing a method to selectively enable or disable communications through the communications port, using a key sequence or unlock code to authenticate and authorize data input, and ensuring that only data received over-the-air can modify system-provider information, such as the preferred roaming list, by using an over-the-air module with an identifier to validate the source of data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If data throughput through communications port is unrestricted, then ease of operation is improved, but security against unauthorized modifications deteriorates
Solution Approach 1:
The communications port is configured to dynamically switch between restricted and unrestricted modes based on operational context. The port can be selectively enabled or disabled through authentication mechanisms (key sequences, unlock codes), allowing the system to adapt its security posture from open (for legitimate operations) to closed (for protecting system-provider information), thus resolving the contradiction between ease of operation and security
Solution Approach 2:
An authentication intermediary layer is introduced between the communications port and system-provider information. This intermediary validates data sources through key sequences, unlock codes, or over-the-air authentication, allowing legitimate data throughput while blocking unauthorized modifications, thus maintaining both operational ease and security
2Adaptability or versatility
If communications port is always enabled, then adaptability is improved, but vulnerability to unauthorized access worsens
Solution Approach 1:
Different quality levels of access are applied to different data types. System-provider information receives protected quality (restricted access requiring authentication), while other data maintains open quality (unrestricted access). This local differentiation allows the communications port to maintain adaptability for general operations while providing enhanced protection for critical information
Solution Approach 2:
The access state of the communications port is made dynamic rather than static. The port can transition between enabled and disabled states based on the type of data being accessed and authentication status, providing adaptability for legitimate communications while dynamically preventing unauthorized access to system-provider information
3Reliability
If access control mechanisms are added, then security is improved, but device complexity worsens
Solution Approach 1:
The mobile communications device performs self-authentication using internally stored credentials (key sequences, unlock codes) without requiring external authentication infrastructure. The device autonomously validates data sources and enforces access control policies, providing enhanced security while minimizing added complexity by leveraging existing device resources rather than introducing external authentication systems
Data Source
AI summary
Systems, products, and methods are disclosed for performing a method of protecting system-provider information stored within a mobile communications device that has one or more communications ports and one or more radios. Illustratively, the method includes receiving a request to access the system-provider information, determining that the request was communicated over the air by way of a wireless telecommunications network that the mobile communications device is authorized to access, which network is accessible by way of the one or more radios; and permitting access to the system-provider information after determining that the request was communicated over the air, such that any request to modify the system-provider information by any of the one or more communications ports is denied, and only the request communicated over the air is allowed to be used to modify the system-provider information.