as always, use whatever encryption you want just remember that death is the likely penalty if it doesn't decode properly and i for one always check them, so i advise sharky's vigenere cipher, i also advise using the method covered in this recent explanation

you can encode a single message or multiple ones, we'll probably want:
character name & character description
role claim
what you learned on night 0

do it as one big one or 3 individual or whatever amuses you, include info not mentioned or don't include all that above, it is up to you and the consequences are on your head. reply to this message directly with your codes

if you decide to use multiple codes, in case we don't decide to reveal all or at least not all at once, i suggest mentioning what is in each coded messages, if you just pump out three separate coded messages they could be three separate roleclaims for all we know and you decipher the one you feel like hoping to avoid decipher the others. I'd also suggest sending your message(s), key(s) & code(s) to the mod.

codes
isaac:
character - a st y pyk'ek'lh szgwiecpwb hhmwv dgtf mq uyf, ivwhj il dsxalrgmz rrgnconz
role - gu-pus&ksjilv-yevpr
night 0 - jopyilsuxjiagpvpuajn&ceatwtxfuvr

fanatic-templar:
Character - DtpzdxugihplrgstNlcrwjtdpcakgwopdrrlaagpeqwgtcjsqlaemlfbdhnqtzhobkt
Role - Xevggwtelsgmeyemddhnpdlrliohpv
Night 0 - Lktanhidjldcltfgeofcigueoesmqyhrxlcewwrlmallaaejtr

waiting for codes from:
beetnemesis
bergioyn
dannymac
galadriel3562
taiga
yunalesca