certifying authority
A person or entity authorized to certify documents, identities, or transactions. Often used in legal, administrative, or technical contexts.
A document signed by the certifying authority is required.
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.