慣かん用よう暗あん号ごう方ほう式しきMeaningsNoun1. conventional cryptosystemKanji used慣get used to用used for暗dark号ID number方way式ceremonyComposed of慣かん用ようcustomary use; common usage; general usageNoun暗あん号ごうcode; password; cipherNoun方ほう式しきform; method; system; formulaNoun