Biometric Data Transfer Using Trusted Authentication Between Devices
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Solution Overview
Problem
Existing technologies fail to ensure secure transmission of biometric feature data between devices, necessitating repeated recording of biometric features when replacing devices, which is time-consuming and affects user experience.
Innovation Solution
A data transmission method that authenticates biometric features on the receiving device, encrypts sensitive data using negotiation keys, fragments data for distributed storage, and associates biometric features with sensitive data for secure one-time transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If biometric feature data is transmitted between devices, then user experience is improved by eliminating repeated recordings, but data security is compromised due to inability to ensure sharing security
Solution Approach 1:
The patent segments biometric data into template information (stored securely in trusted environment) and feature information (transmitted for authentication). This segmentation allows secure sharing without transmitting sensitive template data, resolving the contradiction between security and convenience.
Solution Approach 2:
The patent introduces a trusted execution environment as an intermediary that securely stores biometric templates and performs authentication operations. This mediator enables secure data sharing by preventing direct access to sensitive biometric information while still allowing verification.
2Reliability
If biometric feature data is securely stored in trusted environment, then data security is improved, but data sharing between devices is prevented
Solution Approach 1:
The patent extracts only the necessary authentication features from the complete biometric data set. The extracted feature information can be shared across devices while the core template remains securely stored, enabling both security and adaptability.
Solution Approach 2:
The patent transitions from a single-dimension security model (all-or-nothing data protection) to a multi-dimensional model where different parts of biometric data serve different purposes. Template information remains protected while feature information enables cross-device functionality.
3Measurement precision
If complete biometric data is transmitted for authentication, then authentication accuracy is improved, but transmission security risks increase
Solution Approach 1:
The patent divides biometric data into secure template information and transmittable feature information. This segmentation maintains authentication accuracy by preserving essential verification elements while minimizing transmission of sensitive data, reducing interception risks.
Data Source
AI summary
This application provides a data transmission method and an electronic device. The method includes: a first electronic device establishes a connection to a second electronic device. The second electronic device sends a request to the first electronic device, where the request includes a biometric feature input by a user. Then, the first electronic device performs, by using a target biometric feature template, authentication on the biometric feature input by the user, and, in response to the authentication succeeding, determines sensitive data associated with the target biometric feature template. Finally, the first electronic device transmits the sensitive data to the second electronic device. According to the method, secure transmission of sensitive data that includes biometric feature data can be implemented.