共きょう有ゆう鍵かぎ暗あん号ごうきょうゆうかぎあんごうMeanings1nounsymmetric key cryptographycomputing›Technical computing term. Refers to encryption where the same key is used for both encryption and decryption. Also known as 共通鍵暗号.See also: 共通鍵暗号共