非ひ対たい称しょう鍵かぎ暗あん号ごう

• 公こう開かい鍵かぎ暗あん号ごう

  Often used interchangeably with 非対称鍵暗号, but 公開鍵暗号 emphasizes the public key aspect.

• 共きょう通つう鍵かぎ暗あん号ごう

  Symmetric key cryptography, where the same key is used for encryption and decryption.

Compound of 非対称 (asymmetric) + 鍵 (key) + 暗号 (cryptography).