block cipher

noun

Any deterministic cipher that operates on fixed-size groups of bits (binary digits), called blocks, with an unvarying transformation specified by a symmetric key.

Meanings

nounblock cipher (plural block ciphers)

plural block ciphers

  1. computingAny deterministic cipher that operates on fixed-size groups of bits (binary digits), called blocks, with an unvarying transformation specified by a symmetric key.
Cite this entry
APA

block cipher. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/block%20cipher

MLA

“block cipher.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/block%20cipher. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “block cipher,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/block%20cipher.

Source: block cipher on Wiktionary, CC BY-SA 4.0.