慣用 かんよう暗号 あんごう方式 ほうしきじゃないです
kan'yōangōhōshikijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 慣用暗号方式

1. It's not a conventional code.; It's not a customary cipher.

Negative
Polite
Casual Register
Computing