2018-09-20 暗号利用モード (Block cipher mode of operation) 暗号化 AESの場合 IPA - AES確認リスト AES 動作モード ECB = Electronic Codebook CBC = Cipher Block Chaining CFB = Cipher Feedback OFB = Output Feedback CTR = Counter XTS = XEX encryption mode with tweak and ciphertext stealing Link Wiki - Block cipher mode of operation Wiki - 暗号利用モード