ciphertext-only attack

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|cryptography}} An [[attack]] on a [[cryptosystem]] that relies only on the attacker's knowledge of some [[ciphertext]]s encrypted with that system and key. Less powerful than a [[known-plaintext attack]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.