411 REFERENCE · Wiktionary
S-box
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Short for en substitution box.
Pronunciation
en /ˈɛsˌbɒks/
en LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-S-box.wav US
Noun
en cryptography A basic component of symmetric-key algorithms, which performs substitution, transforming one set of bits into another.
en In block ciphers, S-boxes are typically used to obscure the relationship between the key and the ciphertext.