franbac 🥓

helps encode/decode strings that use two different characters to represent A's and B's. more info about the bacon cipher here

it will try to decode with letter 1 = A and letter 2 = A. if one of those decoded texts results in an invalid plaintext, it will discard it. it will try with the default alphabet and the alternate alphabet (both are in that wikipedia page).

install + use

easist to use npx to run on-demand

decode

franbac decode <ciphertext>

$ npx franbac decode aaaaaaaaabaaaba
ABC

decode emojis

$ npx franbac decode 🌸🌿🌸🌿🌿🌿🌸🌿🌿🌸🌿🌸🌸🌸🌿🌿🌸🌸🌿🌿🌸🌿🌿🌸🌸🌸🌸🌸🌸🌸🌸🌿🌿🌸🌸🌸🌸🌸🌿🌿🌿🌸🌸🌸🌿🌿🌸🌸🌿🌸🌸🌸🌸🌸🌸🌿🌸🌸🌸🌸🌿🌸🌸🌸🌿
MYSVNANDSTARS

encode

franbac encode <a> <b> <plaintext>

$ npx franbac encode t s hello world
ttsssttstttststtststtsstsststttsstsstttttststtttss

encode emojis

$ npx franbac encode 🥓 🎉 hello world
🥓🥓🎉🎉🎉🥓🥓🎉🥓🥓🥓🎉🥓🎉🥓🥓🎉🥓🎉🥓🥓🎉🎉🥓🎉🎉🥓🎉🥓🥓🥓🎉🎉🥓🎉🎉🥓🥓🥓🥓🥓🎉🥓🎉🥓🥓🥓🥓🎉🎉

files

encoding: franbac file encode <a> <b> <filename>

decoding: franbac file decode <filename>

encode and decode file

$ echo "hello world" > helloworld.txt
$ npx franbac file encode 6 9 helloworld.txt > helloworld.enc
$ cat helloworld.enc
66999669666969669696699699696669969966666969666699
$ npx franbac file decode helloworld.enc
HELLOWORLD

roadmap

• [x] support decoding
• [x] support encoding given A and B substitutions
• [x] support encoding/decoding a file

license

MIT