共有 きょうゆう かぎ暗号 あんごう方式 ほうしきじゃなかったです
kyōyūkagiangōhōshikijanakattadesu

Noun
Desu Copula

The polite, past negative form of 共有鍵暗号方式

1. Wasn't shared-key cryptography.; Wasn't a shared-key encryption method.

Past/Perfective
Negative
Polite
Casual Register
Computing