認証する · noun or participle which takes 'suru'
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 認証する | 認証しない |
| Polite | 認証します | 認証しません |
| Past polite | 認証しました | 認証しませんでした |
| Past | 認証した | 認証しなかった |
| Te-form | 認証して | 認証しないで |
| Desire | 認証したい | 認証したくない |
| Potential | 認証できる | 認証できない |
| Passive | 認証される | 認証されない |
| Causative | 認証させる | 認証させない |
| Causative passive | 認証させられる | 認証させられない |
| Volitional | 認証しよう | |
| Polite volitional | 認証しましょう | |
| Imperative | 認証しろ | 認証するな |
| Conditional | 認証すれば | 認証しなければ |
| Tara conditional | 認証したら | 認証しなかったら |
noun, noun or participle which takes 'suru', transitive verb
certification; authentication; attestation
General term for verifying identity, authenticity, or correctness. Common in IT (user authentication), legal (document certification), and quality assurance contexts.
This system requires fingerprint authentication.
The notary public certified the documents.
noun, noun or participle which takes 'suru', transitive verb
Imperial attestation
Historical term for official certification by the Emperor or imperial authority. Rare in modern usage outside historical or ceremonial contexts.
This ancient document bears the Imperial attestation.
You authenticate the smartphone using your fingerprint.
This product has received international standard certification.
Please enter the authentication code sent to your phone.
I entered the wrong password and the authentication failed.
認証 (にんしょう) means 'authentication/verification' and shares the kanji 認 with 認識, but the two are unrelated in meaning.
certificate; written authentication