trifid_delastelle

The trifid cipher is an encryption method that uses a 3-dimensional grid 
It was invented by Felix Delastelle in 1902. As a 3x3x3 grid is used, 27 character are needed.
Thus, we use all the 26 alphabet letter and add the "+" sign at the bottom.

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

trifid_delastelle 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>key</dt>
<dd>key Word for creating the modified Polybius square</dd>
<dt>period</dt>
<dd>period length for splitting the input phrase. If greater or equal to the length of the input then the split is not executed</dd>
<dt>encrypt</dt>
<dd>If `TRUE` (default), the program ciphers the input word, If `FALSE`, the program decrypts it.</dd></dl>

Arguments

trifid_delastelle — trifid_delastelle

<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>key</dt>
<dd>key Word for creating the modified Polybius square</dd>


<dt>period</dt>
<dd>period length for splitting the input phrase. If greater or equal to the length of the input then the split is not executed</dd>


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

</dl>

trifid_delastelle: trifid_delastelle

Description

Usage

Value

Arguments

References

Examples