THE CARBONARO ALPHABET WAS A SUBSTITUTION CIPHER USED BY A SECRET SOCIETY ESTABLISHED IN NAPLES
AT THE BEGINNING OF THE 19TH CENTURY CALLED CARBONERIA.
THIS CODE WAS BASED ON THE SUBSTITUTION OF THE LETTERS WHICH WERE CHANGED WITH THOSE WITH
A SIMILAR SOUND IN THE ITALIAN ALPHABET.
CLEAR ALPHABET: A/B/C/D/E/F/G/H/I/L/M/N/O/P/Q/R/S/T/U/V/Z
CODED ALPHABET: O/P/G/T/I/V/C/H/E/R/N/M/A/B/Q/L/Z/D/U/F/S
EXAMPLE:
CLEAR TEXT: HELLO DEAR FRIEND COME AT THE CINEMA
CODED TEXT: HIRRA TIOL VLEIMT GANI OD DHI GEMINO
IT CAN BE CRACKED USING A BRUCE FORCE ATTACK OR STUDYING THE FREQUENCY ANALYSIS