Dynamic Fingerprint Authentication for Identity Verification
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Solution Overview
Problem
Identity authentication using a fixed fingerprint is risky and less secure, failing to meet user requirements for high privacy or security.
Innovation Solution
A method and device for identity authentication that selects a predetermined amount of fingerprint information from a user's recorded fingerprints, prompts the user to enter corresponding fingerprint information, and confirms authentication upon successful matching, increasing authentication complexity and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed fingerprint is used for identity authentication, then the authentication process is simple and convenient, but the security level is low and cannot satisfy user requirements for high privacy or security
Solution Approach 1:
The patent divides the authentication process into multiple independent fingerprint verification steps. Instead of using a single fixed fingerprint, the system segments the authentication into multiple stages where different fingerprint combinations are required, thereby increasing security while maintaining operational simplicity through automated multi-step verification
2Reliability
If multiple fingerprint information are recorded and required for authentication, then the security and privacy protection are improved, but the authentication complexity increases
Solution Approach 1:
The patent implements dynamic authentication complexity by adjusting the number of required fingerprint combinations based on the security level of the operation. Routine operations require fewer fingerprint matches while sensitive operations require more, making the system adaptively complex rather than statically complex, thereby balancing security requirements with user convenience
Data Source
AI summary
The present disclosure discloses a method and device for identity authentication. One example method includes retrieving stored fingerprint information for a user including a plurality of recorded fingerprints for the user, each recorded fingerprint associated with a different finger of the user; selecting a subset of the recorded fingerprints to be used to authenticate the user; prompting the user to provide fingerprint information corresponding to each finger associated with a recorded fingerprint in the selected subset; in response to prompting the user, receiving user-provided fingerprint information from the user; matching the user-provided fingerprint information against the selected subset of the recorded fingerprints; and determining that an identity authentication of the user succeeds when the user-provided fingerprint information matches the selected subset of the recorded fingerprints.