Soft SIM Card Activation Security via Terminal Binding
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Solution Overview
Problem
Soft SIM cards lack robust security measures, allowing unauthorized users to access and misuse the communication services by copying the SIM card file, leading to serious security risks.
Innovation Solution
A method is introduced to enhance the security of soft SIM cards by generating and comparing key information based on the soft SIM card and its corresponding bounding object information on the terminal, ensuring only authorized users can activate and use the SIM card for network communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If soft SIM card information is stored as a virtual file on terminal, then ease of operation and distribution is improved, but security and anti-theft capability deteriorates
Solution Approach 1:
The soft SIM card system is segmented into multiple components: terminal information (device ID), soft SIM card information (virtual file), and network information (authentication data). These segments are separately stored and verified during network access, preventing unauthorized use while maintaining ease of distribution
Solution Approach 2:
The system performs preliminary binding between terminal information and soft SIM card information before network access. The terminal information is stored and verified in advance during the network joining process, creating a security barrier before the soft SIM card file can be misused
2Ease of operation
If soft SIM card file is copied to another terminal, then ease of operation is maintained, but harmful factors increase due to unauthorized access
Solution Approach 1:
The system implements feedback verification by comparing terminal information with stored binding data during network access. When a soft SIM card file is copied to another terminal, the terminal information mismatch triggers authentication failure, providing immediate feedback that prevents unauthorized access
Solution Approach 2:
The network access device acts as an intermediary that verifies the binding between terminal information and soft SIM card information. This intermediary layer prevents direct unauthorized access even if the soft SIM card file is copied, as the verification process blocks illegitimate terminals
Data Source
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AI summary
A method for activating a soft SIM card, a method for a soft SIM card to join network, a terminal and a network access device. The method for activating includes: acquiring information on a terminal in which a soft SIM card is located of a bounding object corresponding to the soft SIM card, according to information of the soft SIM card; generating first key information according to information of the soft SIM card and the information on the terminal in which the soft SIM card is located of the bounding object and according to a predefined encryption policy; comparing whether the first key information is consistent with preset key information corresponding to the soft SIM card or not, if consistent, allowing an activation of the soft SIM card, so as to enable a user to perform network communication via the soft SIM card; where the preset key information corresponding to the soft SIM card is: key information which is generated according to the information of the soft SIM card and preset information of each bounding object by the operator of the soft SIM card and according to the predefined encryption policy, and is provided to the user.. The technical solutions are beneficial for improving the application security of the soft SIM card.