共有 きょうゆう かぎ暗号 あんごうじゃありませんでした
kyōyūkagiangōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 共有鍵暗号

1. Was not a shared-key cipher.; Was not a symmetric-key cipher.

Past/Perfective
Negative
Polite
Terminal Form
Computing