noun
certifying authority
A person or entity authorized to certify documents, identities, or transactions. Often used in legal, administrative, or technical contexts.
証明権限者が署名した書類が必要です。
A document signed by the certifying authority is required.
このシステムでは、証明権限者が電子証明書を発行します。
In this system, the certifying authority issues digital certificates.
認証局 is a certification authority, often specifically for digital certificates, while 証明権限者 is a broader term for any certifying authority, including individuals.
Compound of 証明 (certification) + 権限 (authority) + 者 (person). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.