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37 ciphers · 10 halls · 2,500 years of cryptographic history

Welcome · Museum overview · Live cipher challenge

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Birth of Cryptography

Ancient World · 150 BC – 100 AD

Classical Substitution

Medieval – Victorian · 800 – 1929

The Polyalphabetic Revolution

Renaissance – 19th C · 1553 – 1880

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Transposition & Fractionation

19th – Early 20th Century

Military & Spy Ciphers

WWI – Cold War · 1880 – 1970

Mechanical Cipher Machines

1467 – 1945 · Bronze disks to Enigma

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Puzzle & Novelty Ciphers

1605 – Present · Freemasons · POWs

Civil War Gallery

Special Exhibition · 1861 – 1865

The Unbreakable & the Modern

1882 – Present · Perfect secrecy

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Cryptanalysis Lab

7 techniques · 12 famous codebreaks

📋Complete Cipher Index · 37 Exhibits

#	Cipher	Hall
01	Caesar Cipher	I
02	Polybius Square	I
03	Monoalphabetic	II
04	Homophonic	II
05	Playfair	II
06	Hill Cipher	II
07	Vigenère	III
08	Beaufort	III
09	Porta	III
10	Gronsfeld	III
11	Running Key	III
12	Rail Fence	IV
13	Columnar Transposition	IV
14	Double Transposition	IV
15	Bifid Cipher	IV
16	Trifid Cipher	IV
17	Fractionated Morse	IV
18	Nihilist Cipher	V
19	ADFGX Cipher	V
20	ADFGVX Cipher	V
21	Bazeries Cipher	V
22	VIC Cipher	V
23	Stager Cipher	CW
24	Confederate Vigenère	CW
25	Dictionary Code	CW
26	One-Time Pad	★
27	Enigma Machine	VI
28	Lorenz Cipher	VI
29	Jefferson Disk	VI
30	Alberti Cipher Disk	VI
31	Pigpen Cipher	VII
32	Bacon's Cipher	VII
33	Tap Code	VII
34	Scytale	I
35	Vernam Cipher	★
36	Navajo Code Talkers	VI
37	Zodiac Cipher	VII

Visual Floor Plan

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The Cipher Museum

INTERACTIVE HISTORY OF ENCRYPTION · EST. 150 BC

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Hall I

ANCIENT CIPHERS

● Scytale ● Caesar Cipher ● Polybius Square

Hall II

CLASSICAL CRYPTOGRAPHY

● Monoalphabetic ● Homophonic ● Playfair Cipher ● Hill Cipher

Hall III

RENAISSANCE SYSTEMS

● Vigenère Cipher ● Beaufort Cipher ● Porta Cipher ● Jefferson Disk

Hall IV

MECHANICAL ENCRYPTION

● Enigma Machine ● Lorenz Cipher ● Alberti Cipher Disk

Hall V

WARTIME CRYPTOGRAPHY

● VIC Cipher ● Navajo Code Talkers ● ADFGVX Cipher

Hall VI

THEORETICAL / PERFECT SECRECY

● One-Time Pad ● Hill Cipher ● Vernam Cipher

● Exhibit Doorway Wall