Authentication Attacks on Projection-based Cancelable Biometric Schemes. (arXiv:2110.15163v6 [cs.CR] UPDATED)

Cancelable biometric schemes aim at generating secure biometric templates by
combining user specific tokens, such as password, stored secret or salt, along
with biometric data. This type of transformation is constructed as a
composition of a biometric transformation with a feature extraction algorithm.
The security requirements of cancelable biometric schemes concern the
irreversibility, unlinkability and revocability of templates, without losing in
accuracy of comparison. While several schemes were recently attacked regarding
these requirements, full reversibility of such a composition in …

attacks authentication biometric