Welcome to Cypher Practise!

Please choose what type of code you would like to practise decyphering:

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Substitution

a type of code that substitutes letters (or numbers) of the plaintext (the unencrypted message) with other letters, numbers or symbols. The outcome is known as the cyphertext


Steganography

based on hiding data inside otherwise inconspicuous files, such as hiding text within a text file of an image, hiding information in meta-data, etc.