playfair {ciphertext} | R Documentation |
playfair
Description
The Playfair cipher is a symmetric method which encrypts pairs of letters using a modified Polybius square
Usage
playfair(word, key = "", added_letter = "x", encrypt = TRUE)
Arguments
word |
Word or phrase to be encrypted or decrypted |
key |
Word for creating the modified Polybius square |
added_letter |
Letter to be added in case two letters of a pair are identical; usually "x" is used |
encrypt |
If 'TRUE' (default), the program ciphers the input word, If 'FALSE', the program decrypts it. |
Value
a string
References
https://en.wikipedia.org/wiki/Playfair_cipher
Examples
playfair( "instruments", "monarchy", added_letter = "z")
playfair("gatlmzclrqtx", "monarchy", added_letter = "z", encrypt = FALSE)
[Package ciphertext version 0.1.1 Index]