秘ひ密みつ鍵かぎ暗あん号ごう方ほう式しきひみつかぎあんごうほうしきMeanings1nounsecret key cryptosystemcomputing›Technical computing term for a cryptographic system where the same key is used for both encryption and decryption.秘ひ密みつ鍵かぎ暗あん号ごう方ほう式しきで