- Monoalphabetic
- Caesar Cipher
- Atbash Cipher
- Keyword Cipher
- Pigpen / Masonic Cipher
- Polybius Square
- Polyalphabetic
- Vigenère Cipher
- Beaufort Cipher
- Autokey Cipher
- Running Key Cipher
- Polygraphic
- Playfair Cipher
- Bifid Cipher
- Trifid Cipher
- Four-square cipher
- Transposition
- Rail Fence
- Route Cipher
- Columnar Transposition
- Miscellaneous
- Book Cipher
- Beale Cipher
- Morse Code
- Tap Code
- One-time Pad
- Scytale
- Semaphore
- ASCII Code
- Steganography
- Techniques
- Frequency Analysis
- Books
Codes and Ciphers
Codes and Ciphers
- Monoalphabetic
- Caesar Cipher
- Atbash Cipher
- Keyword Cipher
- Pigpen / Masonic Cipher
- Polybius Square
- Polyalphabetic
- Vigenère Cipher
- Beaufort Cipher
- Autokey Cipher
- Running Key Cipher
- Polygraphic
- Playfair Cipher
- Bifid Cipher
- Trifid Cipher
- Four-square cipher
- Transposition
- Rail Fence
- Route Cipher
- Columnar Transposition
- Miscellaneous
- Book Cipher
- Beale Cipher
- Morse Code
- Tap Code
- One-time Pad
- Scytale
- Semaphore
- ASCII Code
- Steganography
- Techniques
- Frequency Analysis
- Books
- Monoalphabetic
- Caesar Cipher
- Atbash Cipher
- Keyword Cipher
- Pigpen / Masonic Cipher
- Polybius Square
- Polyalphabetic
- Vigenère Cipher
- Beaufort Cipher
- Autokey Cipher
- Running Key Cipher
- Polygraphic
- Playfair Cipher
- Bifid Cipher
- Trifid Cipher
- Four-square cipher
- Transposition
- Rail Fence
- Route Cipher
- Columnar Transposition
- Miscellaneous
- Book Cipher
- Beale Cipher
- Morse Code
- Tap Code
- One-time Pad
- Scytale
- Semaphore
- ASCII Code
- Steganography
- Techniques
- Frequency Analysis
- Books
Atbash Cipher
The Atbash cipher is a very specific case of a substitution cipher where the letters of the alphabet are reversed. In otherwords, all As are replaced with Zs, all Bs are replaced with Ys, and so on.
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