trifid_delastelle: trifid_delastelle

In ciphertext: Classical Cryptography Methods for Words and Phrases

trifid_delastelle

Description

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.

Usage

trifid_delastelle(input, key = "", period = 100, encrypt = TRUE)

Arguments

input	Word or phrase to be encrypted, or character vector with the sequence of coordinate numbers if we need to decrypt
key	key Word for creating the modified Polybius square
period	period length for splitting the input phrase. If greater or equal to the length of the input then the split is not executed
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/Trifid_cipher

Examples

trifid_delastelle("secret", key = "", period = 5, encrypt = TRUE)
trifid_delastelle("sjlkzt", key = "", period = 5, encrypt = FALSE)

ciphertext documentation built on April 4, 2025, 12:17 a.m.