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Cipher Identifier

Paste unknown ciphertext and we'll guess what cipher it is.

Paste an unknown ciphertext below and click Identify. We score its statistical and structural features against every cipher CacheSleuth supports and rank the most likely matches. Each result links straight to the dedicated solver.

Possible keys (optional, advanced) — for Vigenère / Beaufort / Autokey / Gronsfeld / Bifid / Columnar