Substitution cipher
Substitution cipher
System to replace plaintext with ciphertext.
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Readers' pathsAug 2026 – Oct 2026
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Share of the 3,986 clicks on its links
Transposition cipher
Method of encryption.
7.6%
Pigpen cipher
Type of substitution cipher.
7.1%
Caesar cipher
Simple and widely known encryption technique.
7%
Vigenère cipher
Simple type of polyalphabetic encryption system.
6.7%
Cryptography
Practice and study of secure communication techniques.
5.4%
Frequency analysis
Study of the frequency of letters or groups of letters in a ciphertext.
4.5%
Ciphertext
Encrypted information.
3.1%
ROT13
Simple encryption method.
2.8%
Commander Keen
Video game series by id Software.
2.2%
Book cipher
Encryption and decryption method.
2.1%
Readers come from
Share of the 4,993 readers arriving from another article
Caesar cipher
Simple and widely known encryption technique.
11%
Pigpen cipher
Type of substitution cipher.
9.4%
Voynich manuscript
15th-century codex in an unknown script.
6.6%
Copiale cipher
Historical article manuscript.
4.9%
Beatrix Potter
English writer and illustrator (1866–1943).
4.9%
ROT13
Simple encryption method.
4.6%
Babington Plot
1586 plot to assassinate Elizabeth I.
4.5%
Cipher
Algorithm for encrypting and decrypting information.
4.4%
Transposition cipher
Method of encryption.
3%
Theban alphabet
Substitution cypher popular among modern occultists.
2.9%