Portable Device UI Legality Verification via File Slice Matching
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Solution Overview
Problem
The security of user information in portable devices is compromised when an illegal User Interface (UI) is used on a Personal Computer (PC), allowing unauthorized access and data theft.
Innovation Solution
A method and system where a portable device verifies the legality of a UI by sending and matching identification information of file slices using a specific algorithm, ensuring only a legal UI can access services, thereby preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a portable device connects to a PC through a data line to implement services via a UI on the PC, then the user can acquire services conveniently, but the security of user information saved in the portable device is compromised when the UI is illegal
Solution Approach 1:
The patent applies preliminary action by performing UI legality verification before allowing service access. The portable device checks whether the UI is legal through algorithm verification and file slicing validation in advance, preventing illegal UIs from accessing user information while still allowing legitimate services to proceed normally
2Reliability
If the portable device verifies UI legality through file slicing and algorithm matching, then user information security is improved, but the service acquisition process becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the file into multiple slices and verifying each slice independently through algorithm matching. This approach enhances security by checking specific portions of the file rather than requiring full file verification, making the validation process more efficient and less intrusive
Solution Approach 2:
The patent uses copying by creating and verifying copies of file slices through algorithm-generated identification information. The portable device computes identification information from file slices and matches it with information from the UI, providing a lightweight verification mechanism that doesn't require handling the entire original file
Data Source
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AI summary
The disclosure provides a method, an apparatus and a system for acquiring a service by a portable device in order to solve the problem that the security of the user information saved in the portable device is affected as the portable device uses an illegal User Interface (UI) on a Personnel Computer (PC) in the related art. The method includes: the portable device receives the data information of each slice computed by the UI according to the first algorithm in the UI itself and identification information of each slice saved, matches the received data information of each slice with the corresponding data information of each slice saved in the portable device itself, and verifies whether the UI is legal according to the matching result. When using a UI, the portable device sends slice information of a file to the UI to verify the legality of the UI, and does not acquire the service through the UI until the verification is passed, so as to prevent the portable device from using an illegal UI and ensure the security of the user information saved in the portable device.