Core engineering and protocols for Biometric Privacy & Legal Compliance.
Biometric data privacy laws (such as GDPR Article 9 in the EU and the Biometric Information Privacy Act in Illinois) impose severe financial liabilities on companies that store raw biometric templates. Regulatory authorities classify compromised biometric data as permanent harm because individuals cannot re-issue their biological traits.
Under FHEID, encrypted biometric ciphertexts are cryptographically unlinkable across distinct applications. Even if an adversary compromises two different service databases containing encrypted templates for the same individual, the underlying mathematical lattices are randomized with independent secret keys, making cross-database tracking mathematically impossible.