Authorization Control for SIM Sharing Between Electronic Devices
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Solution Overview
Problem
In environments where multiple electronic devices share a subscriber identity module (SIM), the card-machine separating use mode can lead to security breaches due to unauthorized access to communication information.
Innovation Solution
A method is implemented where a first electronic device receives communication information, obtains user attribute information, and determines authorization based on this information before processing it, sending an authorization request to a second electronic device if necessary, and only processing the information if a favorable response is received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If card-machine separating use mode is implemented for sharing SIM between multiple devices, then device versatility and resource utilization are improved, but security and authorization control deteriorate
Solution Approach 1:
The patent segments the SIM sharing system into multiple electronic devices (first electronic device, second electronic device) where each device maintains separate authorization status. The SIM card is physically present in one device while enabling communication functions in another device through authorized sharing, creating distinct security boundaries for each device while maintaining resource utilization.
2Reliability
If authorization requests are sent to second electronic device before processing communication information, then security is improved, but processing time and system complexity worsen
Solution Approach 1:
The patent implements preliminary authorization verification by requiring the first electronic device to send an authorization request to the second electronic device before processing communication information. This preliminary action ensures that authorization status is confirmed in advance, preventing unauthorized access while maintaining a clear audit trail of authorized operations.
3Object-affected harmful factors
If authorization verification is performed before processing communication information, then unauthorized access is prevented, but system complexity and operational steps increase
Solution Approach 1:
The patent introduces an intermediary authorization mechanism where the second electronic device acts as the authorization source. The first electronic device (which receives communication information) must obtain authorization from the second electronic device (which holds the SIM card). This intermediary approach distributes security responsibilities across multiple devices, preventing centralized complexity while ensuring robust authorization control.
Data Source
AI summary
One method includes receiving, at a first electronic device, communication information via a wireless communication network. The method also includes obtaining, via the first electronic device, user attribute information corresponding to the communication information. The method includes determining, via the first electronic device and based on the user attribute information, whether authorization of the first electronic device to the communication information is to be obtained prior to processing the communication information. The method also includes in response to determining that authorization of the first electronic device to the communication information is to be obtained: sending, from the first electronic device, an authorization request to a second electronic device; and processing, via the first electronic device, the communication information in response to receiving a favorable response from the second electronic device, and not processing the communication information in response to receiving an unfavorable response from the second electronic device.