Cabinet Noir>Practice / Alberti cipher

Not sure which cipher? Identify it
The first polyalphabetic cipher: two rotating discs switch alphabets every few letters.
Typepolyalphabetic substitution cipher
Breaking iteasy to break by hand
Era15th century
NameDevised by Leon Battista Alberti around 1467 on his cipher disk, Formula.
Modesencrypt · decrypt · cryptoanalysis

Practice

Alberti cipher
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I came, I saw, I conquered

Easy
ufngonltd&us
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Per aspera ad astra

Medium
lfpf&tlsclrlacbx
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All Gaul

Hard
bmccpaksbqomflmfyk&fzyokcgseturdo
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Created by Denys Grybov in 2021

v.0.4.0 // released on 18.10.2026