The Unique Identification Authority of India (UIDAI) has announced the addition of facial recognition to the Aadhaar program to provide more authentication options for users. Aadhaar has previously implemented fingerprint and iris recognition, along with one-time passwords (OTP) for identity verification. UIDAI notes in a circular (PDF) that it is difficult for some users to use fingerprints or iris scans, and that many Authentication User Agencies (AUAs) have not deployed both modalities. The enrollment process for Aadhaar has included the
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