OTB-morph: One-Time Biometrics via Morphing applied to Face Templates

TL;DR

This paper presents OTB-morph, a novel cancelable biometric scheme using morphing with time-varying keys for face recognition, enhancing security against attacks while maintaining or improving recognition accuracy.

Contribution

Introduces a new cancelable biometric method based on morphing with dynamic keys, applicable to face templates, and demonstrates its effectiveness and security through experiments.

Findings

Resists leakage attacks effectively

Improves face recognition performance

Applicable to various biometric systems

Abstract

Cancelable biometrics refers to a group of techniques in which the biometric inputs are transformed intentionally using a key before processing or storage. This transformation is repeatable enabling subsequent biometric comparisons. This paper introduces a new scheme for cancelable biometrics aimed at protecting the templates against potential attacks, applicable to any biometric-based recognition system. Our proposed scheme is based on time-varying keys obtained from morphing random biometric information. An experimental implementation of the proposed scheme is given for face biometrics. The results confirm that the proposed approach is able to withstand against leakage attacks while improving the recognition performance.