Aadhaar authentication is the process wherein Aadhaar number, along with other attributes (demographic/ biometrics/ OTP)
is submitted to UIDAI's Central Identities Data Repository (CIDR) for verification. The CIDR verifies whether the data submitted matches
the data available in CIDR and responds with a “yes/no”. No personal identity information is returned as part of the response.
Types of Aadhaar Authentication
- Aadhaar Holders: Residents who have obtained their Aadhaar number. For example, the authentication device at a fair price
shop may also be used for carrying out financial transactions for banks.
- Authentication Devices: Point of initiation of Aadhaar authentication transaction e.g., PCs, kiosks, handheld devices etc.
- Authentication User Agency (AUA): Agency that uses Aadhaar authentication to enable its services
- Authentication Service Agency (ASA): Agency that has secured leased line connectivity with CIDR
- Unique Identification Authority of India: Offers online authentication
- Sub Auth. User Agency (Sub AUA): Agencies that access Aadhaar authentication through an existing AUA.