Last Updated：2025/12/02

(cryptography) A basic component of symmetric-key algorithms, which performs substitution, transforming one set of bits into another.

音声機能が動作しない場合はこちらをご確認ください

See correct answer

S-box

Source Word

S-box

(cryptography) A basic component of symmetric-key algorithms, which performs substitution, transforming one set of bits into another.

Japanese Meaning

S-box（Substitution box）：暗号学において、対称鍵暗号アルゴリズムの基本的な構成要素。入力されたビット列を対応する別のビット列に置換する役割を果たす。

The S-box is crucial for introducing nonlinearity into the cipher's substitution layer to resist linear and differential attacks.

置換ボックスは、線形攻撃や差分攻撃に耐えるために、暗号の置換層に非線形性を導入するうえで重要です。

Sense（1）

(cryptography) A basic component of symmetric-key algorithms, which performs substitution, transforming one set of bits into another.

In block ciphers, S-boxes are typically used to obscure the relationship between the key and the ciphertext.

S-boxes

（ plural ）