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cryptology
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Vigenère table letter frequency analysis of a Vigenère cipher frequency distribution for plaintext and its repeated-key Vigenère cipher ADFGVX cipher U.S. Army cipher disk Enigma Hagelin M-209 cipher machine
Learn about William Friedman, who sought to prove that Sir Francis Bacon wrote Shakespeare's plays
Purple cipher machine Jade cipher machine
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A botanical illustration from the Voynich manuscript, a codex, scientific or magical text in an unidentified language, in cipher; end of the 15th or during the 16th century (?).
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cryptology: Related Content

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Photos and Videos

Vigenère table
letter frequency analysis of a Vigenère cipher
frequency distribution for plaintext and its repeated-key Vigenère cipher
ADFGVX cipher
U.S. Army cipher disk
Enigma
Hagelin M-209 cipher machine
Purple cipher machine
Jade cipher machine
DES flow diagram
Learn about William Friedman, who sought to prove that Sir Francis Bacon wrote Shakespeare's plays
See All Videos and Images →

Related Topics and References

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Key People

William F. Friedman
American cryptologist
Elizebeth S. Friedman
American cryptologist
Agnes Meyer Driscoll
American cryptologist
Yardley, Herbert Osborne
Herbert Osborne Yardley
American cryptologist

Related Quizzes and Features

Quiz
A botanical illustration from the Voynich manuscript, a codex, scientific or magical text in an unidentified language, in cipher; end of the 15th or during the 16th century (?).
Codes, Secrets, and Ciphers Quiz