authentication
authentication — noun
1. an electronic check, usually run by a computer or phone, that confirms a person
an electronic check, usually run by a computer or phone, that confirms a person logging in or paying online really is the account owner.
The bank app uses fingerprint authentication before approving any transfer over NT$1,000.
fingerprint / face authentication
Olu enabled two-factor authentication on her Gmail after a phishing attempt.
two-factor authentication (2FA)
User authentication failed three times, so the system locked Paloma out for an hour.
Our office uses smart cards for authentication at every door on the upper floors.
Otto forgot his phone, so he could not complete the authentication step at checkout.
- verification
interchangeable in tech contexts; slightly less formal
- login
informal; refers to the user-facing act, not the underlying check
- sign-in
everyday term for the same action from the user's side
文法句型
two-factor authentication
user authentication
用法筆記
Frequently appears in fixed compounds: 'two-factor authentication', 'biometric authentication', 'multi-factor authentication'. Distinguish from sense 2 — this sense is about confirming a person's digital identity, not the genuineness of a physical object.
常見錯誤
2. the work of checking whether an object, document, or signature is genuine — for
the work of checking whether an object, document, or signature is genuine — for example, an art expert examining a painting to confirm it was actually made by a famous artist.
Dr. Patel sent the old letter to a museum for authentication before selling it.
send something for authentication
The painting requires authentication by a Picasso expert in Paris.
authentication by + expert
Authentication of the gold coins took the auction house three months.
Without proper authentication, the antique vase cannot be sold at the Tokyo gallery.
Mr. Lin paid a specialist for authentication of his grandfather's rare stamps.
- verification
broader; can apply to facts and claims, not only objects
- validation
often emphasises official approval rather than checking origin
- certification
the formal document or stamp that results from authentication
- forgery
the result when something fails authentication
文法句型
authentication of + noun
authentication by + expert
用法筆記
Subject of the authentication is usually a physical object whose value depends on origin (artwork, antiques, signatures, historical documents). Distinguish from sense 1, which concerns digital identity checks.