polybius

The polybius square is a device which associates 
each letter to a pair of coordinates. The letter J is excluded and replaced
with I in order to get 25 letters and create a 5x5 matrix.

Classical cryptography methods for words and brief phrases.
Substitution, transposition and concealment (null) ciphers are available, like
Caesar, Vigenère, Atbash, affine, simple substitution, Playfair,
rail fence, Scytale, single column, bifid, trifid, and Polybius ciphers.

Luigi Annicchiarico

ciphertext

Classical Cryptography Methods for Words and Phrases

polybius function

<dl><dt>input</dt>
<dd>Word or phrase to be encrypted,
or character vector with the sequence of coordinate numbers if we need to decrypt</dd>
<dt>encrypt</dt>
<dd>If `TRUE` (default), the program ciphers the input word, If `FALSE`, the program decrypts it.</dd></dl>

Arguments

polybius — polybius

<dl>

<dt>input</dt>
<dd>Word or phrase to be encrypted,
or character vector with the sequence of coordinate numbers if we need to decrypt</dd>


<dt>encrypt</dt>
<dd>If `TRUE` (default), the program ciphers the input word, If `FALSE`, the program decrypts it.</dd>

</dl>

polybius: polybius

Description

Usage

Value

Arguments

References

Examples