自己 じこ署名 しょめい証明 しょうめい しょではありませんでした
jikoshomei shō meishodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 自己署名証明書

1. Was not a self-signed certificate.; Was not a certificate of self-signature.

Past/Perfective
Negative
Polite
Formal Register
Internet