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Bacon's cipher or the Baconian cipher is a method of steganography (a method of hiding a secret message as opposed to a true cipher) devised by Francis Bacon. To encode a message, each letter of the plaintext is replaced by a group of five of the letters 'A' or 'B'. This replacement is done according to the alphabet of the Baconian cipher, shown below. More on Wikipedia. |
A | B | C | D | E | F | G | H | I=J | K | L | M |
AAAAA | AAAAB | AAABA | AAABB | AABAA | AABAB | AABBA | AABBB | ABAAA | ABAAB | ABABA | ABABB |
N | O | P | Q | R | S | T | U=V | W | X | Y | Z |
ABBAA | ABBAB | ABBBA | ABBBB | BAAAA | BAAAB | BAABA | BAABB | BABAA | BABAB | BABBA | BABBB |
A | B | C | D | E | F | G | H | I | J | K | L | M |
AAAAA | AAAAB | AAABA | AAABB | AABAA | AABAB | AABBA | AABBB | ABAAA | ABAAB | ABABA | ABABB | ABBAA |
N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
ABBAB | ABBBA | ABBBB | BAAAA | BAAAB | BAABA | BAABB | BABAA | BABAB | BABBA | BABBB | BBAAA | BBAAB |