autokey

This can be used to encrypt or decrypt an Autokey cipher. The Autokey Cipher is derived from the Vigenere Cipher,
in which the key and plaintext are bound to generate a new encryption key for the Vigenere method.
This Vigenere method uses only letters and numbers, as such any other characters used as inputs are not used in the cipher.

Playfair, Four-Square, Scytale, Columnar Transposition and Autokey methods. Further explanation on methods of classical cryptography can be found at Wikipedia; (<https://en.wikipedia.org/wiki/Classical_cipher>).

Piaras Fahey

cryptography

Encrypts and Decrypts Text Ciphers

autokey function

<dl><dt>message</dt>
<dd>A character vector of plaintext to be encrypted or ciphertext to be decrypted</dd>
<dt>key</dt>
<dd>A character vector to be used as the encryption key</dd>
<dt>encrypt</dt>
<dd>(Default: <code>TRUE</code>) TRUE will encrypt the message, while FALSE will decrypt the message.</dd></dl>

Arguments

Autokey Cipher — autokey

<dl>

<dt>message</dt>
<dd>A character vector of plaintext to be encrypted or ciphertext to be decrypted</dd>


<dt>key</dt>
<dd>A character vector to be used as the encryption key</dd>


<dt>encrypt</dt>
<dd>(Default: <code>TRUE</code>) TRUE will encrypt the message, while FALSE will decrypt the message.</dd>

</dl>

autokey: Autokey Cipher

Description

Usage

Value

Arguments

Examples