How to ask for a user's identity?

1. What three methods are used to verify identity?
2. What is identification of user?
3. How is user identity authentication in HTTP?

What three methods are used to verify identity?

Digital identity verification methods such as biometric verification, face recognition and digital ID document verification can help companies, governments, and financial institutions verify the identity of a person online.

What is identification of user?

User identification (user ID) is a logical entity used to identify a user on a software, system, website or within any generic IT environment. It is used within any IT enabled system to identify and distinguish between the users who access or use it. A user ID may also be termed as username or user identifier.

How is user identity authentication in HTTP?

A user ID is obtained from the client, using HTTP basic authentication. This can be overridden by an analyzer program. If the client sends a certificate that is associated with a user ID, then that user ID applies, unless it is overridden by an analyzer program.