Skip to main content
Cipher Visualizers home

Tag

#Fractionation

2 articles with this tag.

A visual representation of the ADFGVX Cipher
Basic Classic Symmetric Advanced

The ADFGVX Cipher

Learn about ADFGVX, the German WWI field cipher that combined Polybius-square fractionation with columnar transposition. It was considered so strong that French cryptanalyst Georges Painvin needed weeks to break a message that helped stop a 1918 offensive.

14 min read

A visual representation of the Bifid Cipher
Basic Classic Symmetric Advanced

The Bifid Cipher

Learn about the Bifid cipher, Félix Delastelle's fractionating cipher that scrambles a Polybius square's coordinates across an entire message, defeating single-letter frequency analysis far more thoroughly than plain substitution.

14 min read

← All tags

Esc