To prove the identity
From uidnumber.org - All about Aadhaar
Aadhaar authentication is the process in which the Aadhaar number, along with other attributes (including biometrics) are submitted to the Central Identities Data Repository (CIDR) for its verification and the repository verifies the correctness thereof on the basis of information or data available with it.
The response from the CIDR to a authentication query will only be a positive or a negative response, the UIDAI shall not give out the demographic or biometric information of a resident in response to an authentication query.
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Purpose
The purpose is to enable authentication to prove the identity and to confirm that the resident is ‘who they say they are’. The UIDAI confirms either proof of identity or verifies the information provided by the resident. The authentication service provided by Aadhaar only responds with a Yes or No and no personal identity information is returned as part of response.
Attributes that can be authenticated
Authentication can be
- Demographic Authentication
- Biometric Authentication
In all forms the Aadhaar Number needs to be submitted so that this operation is reduced to a 1:1 match.
Is it necessary to take a Resident’s fingerprint at the time of authentication
Resident’s fingerprint may not be required when proof of presence is not being authenticated like for verifying demographic information, such as name, address and date of birth, But, Aadhaar Number needs to be submitted for all authentication requests.
What data will be returned from CIDR after Aadhaar-authentication
“yes or no”. No personal identity information is returned as part of the response.
