authentication
nounUK /ɔːˌθentɪˈkeɪʃn/
US /ɔːˌθentɪˈkeɪʃn/
Authentication is the act of proving that something or someone is real or true.
The app uses a password for authentication before you can log in.
RELATED WORDS
OTHER MEANINGS
2. The process of checking that a document or signature is genuine.
The bank performed authentication of the signature on the check.
3. In computing, the process of verifying a user's identity before granting access.
Two-factor authentication adds an extra step to keep accounts safe.
4. The act of establishing the truth or authenticity of a work of art or artifact.
Experts carried out authentication of the ancient painting.