BioBind: Binding Biometric Deduplication to Zero-Knowledge Authentication
In briefBioBind: Linking Biometric Deduplication to Zero-Knowledge Authentication
SummaryThis paper presents BioBind, a protocol for biometric identity credentials in decentralized applications that prevents repeated enrollment and supports private, publicly verifiable authentication. Four backend interface conditions bind the deduplication query, gallery insertion and issued credential to one captured biometric vector and authenticate gallery state transitions. A prototype using LFW face features rejected the tested composition attacks.