AdHoc Biometric Enrollment Without Personally Identifiable Information
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Solution Overview
Problem
Existing security systems require formal enrollment processes that involve divulging personal information, which users may wish to avoid, and lack flexibility and privacy in authentication methods.
Innovation Solution
An AdHoc enrollment process that captures biometric data without requiring formal enrollment, using facial scans and other biometric modalities, and associates session tags or non-personally identifiable information (PII) to allow access to restricted areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If formal enrollment process is used, then authentication accuracy is improved, but user privacy is worsened and ease of operation is reduced
Solution Approach 1:
The enrollment process is segmented into two distinct phases: initial formal enrollment where biometric data is captured and stored, and subsequent ad-hoc access where only the biometric verification is required without re-disclosing personal information. This segmentation allows the system to maintain authentication accuracy while improving user privacy and convenience during repeated access scenarios.
Solution Approach 2:
A session tag is introduced as an intermediary element that links the user to their biometric data without requiring the user to disclose their actual biometric information during ad-hoc access. The session tag acts as a mediator between the user's identity and the biometric verification process, enabling accurate authentication while preserving user privacy.
2Measurement precision
If biometric data is captured and stored, then identification accuracy is improved, but data security risks increase
Solution Approach 1:
The system extracts only the essential biometric features needed for identification and stores them in a processed format (templates) rather than raw biometric data. This extraction approach maintains identification accuracy while reducing the sensitivity of stored data to security breaches, as the stored templates are mathematical representations rather than actual biometric information.
Solution Approach 2:
Instead of storing actual biometric data, the system creates and stores copies in the form of biometric templates and session tags. These copies contain only the necessary information for verification while the actual biometric data remains protected. The template serves as a functional copy that enables accurate identification without exposing the original biometric information.
3Reliability
If traditional enrollment process is used, then access control reliability is improved, but system complexity increases
Solution Approach 1:
The system performs preliminary enrollment actions during the initial registration phase, capturing biometric data and creating templates in advance. This preliminary action simplifies subsequent ad-hoc access processes, as the heavy lifting of biometric data capture and processing is completed beforehand, reducing the complexity of repeated access control operations.
Solution Approach 2:
The system dynamically adapts the enrollment process based on the scenario: formal enrollment is required only when needed, while ad-hoc access uses pre-established templates and session tags for simpler, faster verification. This dynamic approach allows the system to maintain high reliability for access control while reducing operational complexity during routine scenarios.
Data Source
AI summary
Methods and systems are provided for an AdHoc enrollment process. A user may be able to enroll and be verified by a system for a variety of actions or authentications without being forced to turn over personally identifiable information and without having to formally enroll. The system may compare captured biometric information with existing biometric information and may identify the user without the use of personally identifiable information.