The Atbash cipher (also called the mirror cipher or reverse alphabet) is a monoalphabetic substitution cipher in which each letter is replaced by its counterpart in the alphabet; thus, A …

What is the Atbash cipher? The Atbash Cipher is a really simple substitution cipher that is sometimes called mirror code. It is believed to be the first cipher ever used, and its use pre …

Atbash is one of the oldest known substitution ciphers, originally used in the Hebrew alphabet. It works by reversing the alphabet: the first letter becomes the last, the second becomes second …

The Atbash cipher is one of the oldest known substitution ciphers, originally used for the Hebrew alphabet. It works by replacing each letter with its mirror image in the alphabet - the first letter …

Free online Atbash cipher tool for encrypting and decrypting text using the ancient Hebrew substitution cipher. Simple A-Z reverse alphabet encryption with instant results.

Atbash (Hebrew: אתבש; also transliterated Atbaš) is a monoalphabetic substitution cipher originally used to encrypt the Hebrew alphabet. It can be modified for use with any known …

Dec 9, 2025 · Explore the complete 2,500-year history of the Atbash cipher from 500 BCE Hebrew origins through biblical encryption to modern cryptography education with scholarly sources.

Atbash is formed by substituting the first letter of the Hebrew alphabet for the last, the second for the second to last, and so forth. This symmetric mapping of the alphabet makes it one of the …

Jul 23, 2025 · Definition: Atbash cipher is a substitution cipher with just one specific key where all the letters are reversed that is A to Z and Z to A. It was originally used to encode the Hebrew …

The Atbash Cipher is often used in puzzles, crosswords, and brainteaser games as a way to encrypt words and phrases. This cipher is used for educational purposes to teach students the …