Biometric Identification Using Secondary Identifier Extraction
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Solution Overview
Problem
Biometric identification methods often compromise privacy by allowing access to personal identity data through biometric characteristics, posing challenges for secure and confidential identity verification, especially in applications like airport security protocols.
Innovation Solution
A method that uses a secondary identifier associated with distinct biometric characteristics, stored separately from primary identity information, allowing tracking of individuals without revealing their identity or civil status, using fingerprint readers and secure chips in biometric passports to compare biometric data within the chip, ensuring that only a secondary identifier is recorded and used for verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If biometric characteristics are stored and compared with identity information on a secure chip or server, then identification speed and reliability are improved, but privacy protection deteriorates because unauthorized access to personal data becomes possible
Solution Approach 1:
The patent extracts and separates the identification function from the identity data storage function. A secondary identifier is extracted from the biometric data and stored separately from the primary identity information on the secure chip. This allows identification to occur without exposing the actual identity data, resolving the contradiction between reliable identification and privacy protection.
Solution Approach 2:
The patent introduces a secondary identifier as an intermediary between the biometric characteristic and the identity information. This intermediary element enables the identification process to function while preventing direct access to personal data. The secondary identifier acts as a mediator that links the biometric scan to the identity record without exposing the identity data during the verification process.
2Productivity
If biometric data is recorded and linked to identity information for tracking purposes, then security monitoring capability is improved, but confidentiality of personal data deteriorates
Solution Approach 1:
The patent extracts a secondary identifier from the biometric data that can be used for tracking purposes without containing actual identity information. This extracted identifier enables security personnel to monitor and track individuals through the security process while preventing access to confidential personal data, thus maintaining both monitoring efficiency and data confidentiality.
Solution Approach 2:
The patent applies different quality requirements to different parts of the data structure. The secondary identifier stored on the secure chip has the quality of being identifiable and trackable, while the primary identity information maintains the quality of being confidential and protected. This local differentiation of data qualities allows simultaneous achievement of monitoring capability and confidentiality.
3Measurement precision
If complete identity verification is performed at each checkpoint, then security accuracy is improved, but processing time increases
Solution Approach 1:
The patent segments the identity verification process into two distinct stages: first, rapid verification using the secondary identifier stored on the secure chip, and second, more thorough verification using the complete identity information stored separately. This segmentation allows most checkpoints to operate quickly using only the secondary identifier, while maintaining the option for complete verification when needed, thus reducing overall processing time while preserving accuracy.
Solution Approach 2:
The patent performs preliminary action by pre-storing the secondary identifier on the secure chip during the enrollment phase. This preliminary storage of identification data enables rapid verification at subsequent checkpoints without requiring access to the complete identity database, significantly reducing processing time while maintaining verification accuracy through the use of the pre-prepared secondary identifier.
Data Source
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AI summary
The invention relates to a method for identifying a person to be identified (1) having a certified data medium linking a primary identifier and a primary biometric characteristic of a holder of the data medium, comprising the following steps: - acquiring, during a unique operation, the first biometric characteristic on the person to be identified (1) and a second, distinct biometric characteristic; - verifying that the person to be identified (1) corresponds to the holder of the data medium by comparing the first acquired biometric characteristic to that of the data medium; - storing the second acquired biometric characteristic and associating it with a secondary identifier; during a subsequent identification, acquiring the second biometric characteristic on the person to be identified (1) and comparing it to the second biometric characteristic.