Cipher History
Historical backgrounds and origins of classical cryptography
Pigpen Cipher History: From Ancient Secrets to Modern Puzzles
Explore the fascinating 500-year journey of the pigpen cipher, from medieval mysticism to Freemason rituals and Civil War secrets.
The Complete History of the Atbash Cipher: From Ancient Hebrew to Modern Cryptography
Discover how ancient Hebrew scribes invented the Atbash cipher in 500 BCE to encrypt 'Babylon' as 'Sheshach' in the Book of Jeremiah, creating humanity's oldest documented encryption system that survives today as a foundational example in cryptography education.
The History of the Caesar Cipher: From Julius Caesar to Modern Times
The caesar cipher history begins over 2,000 years ago with one of the oldest and most famous encryption methods ever documented. Named after the Roman military leader Julius Caesar, this simple yet ingenious technique has survived for over two millennia.
Keyword Cipher History: Complete Guide to Classical Cryptography
Discover the fascinating history of keyword ciphers from 15th-century Renaissance Europe to modern educational applications. Complete guide covering encryption, decryption, cryptanalysis, and real-world examples.