self-signed certificate
Colloquial term from the IT security domain, often used in the context of 'ore-ore' (it's me) fraud or impersonation. Refers to a certificate that is signed by the same entity whose identity it certifies, without a trusted third party.
See also: 自己署名証明書
Sites using self-signed certificates often trigger browser warnings.
In test environments, a self-signed certificate is sometimes sufficient.
Formed from オレオレ, a repetition of 俺 “I; me,” and 証明書 “certificate.” It humorously presents a self-signed certificate as one that authenticates itself by asserting its own identity.