慣用 かんよう暗号 あんごう方式 ほうしきでしょう
kan'yōangōhōshikideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 慣用暗号方式

1. Probably a conventional cipher.; Likely a standard encryption method.

Polite
Presumptive
Conjecture
Computing