A simple substitution experiment

[oshfdk]

The text may or may not be too short. I can provide a longer sample to anyone wanting to give it a try.

It is long enough to be decoded to the point where it's possible to identify the source. I ran it via annealing pipeline that assumes U/V and I/J are encoded using the same symbol, probably that's why it struggled with V/M and generally couldn't uncover the correct text and couldn't decide between Italian or Spanish, but it correctly rejected Latin, Dutch, German, Polish, Greek, Occitan, Romansh, Catalan and French, and the result it produced was enough for me to find the original text. The best statistical match is the below. The code I use ignores spaces, so I stripped them from the ciphertext before decoding.

Code:

(83072, 'test', 'test', 'test', 'test-test', 'Spanish|Italian', 'temptest', 'QUANTO x1 s309174, UANTOA x1 s309174, ODELAL x1 s309174, CHELAM x1 s309174, TOLADO x1 s309174, OLADOM x1 s309174, LADOME x1 s309174, GUARDA x1 s309174, PIANET x1 s309174, IANETA x1 s309174', './temptest/testresults-wordscore.txt', 106, ['QUANTO', 'UANTOA', 'ODELAL', 'CHELAM', 'TOLADO', 'OLADOM', 'LADOME', 'GUARDA', 'PIANET', 'IANETA']), signature: test-test-test-test-test E => A I => E A => I S => R U => O N => T R => L T => N C => C O => U L => D P => P M => S Q => M D => B V => H B => G H => Q F => F G => Z X => X NELBEXXODELCABBINDINOSTRAMITABIRITROMAIPERUNASELMAOSCURACHELADIRITTAMIAERASBARRITAAHIQUANTOADIRQUALERAECOSADURAESTASELMASELMAGGIAEASPRAEFORTECHENELPENSIERRINOMALAPAURATANTEABARACHEPOCOEPIUBORTEBAPERTRATTARDELZENCHIMITROMAIDIRODELALTRECOSECHIMHOSCORTEIONONSOZENRIDIRCOBIMINTRAITANTERAPIENDISONNOAQUELPUNTOCHELAMERACEMIAAZZANDONAIBAPOICHIFUIALPIEDUNCOLLEGIUNTOLADOMETERBINAMAQUELLAMALLECHEBAMEADIPAURAILCORCOBPUNTOGUARDAIINALTOEMIDILESUESPALLEMESTITEGIADERAGGIDELPIANETACHEBENADRITTOALTRUIPEROGNECALLEALLORFULAPAURAUNPOCOQUETACHENELLAGODELCORBERADURATALANOTTECHIPASSAICONTANTAPIETAECOBEQUEICHECONLENAAFFANNATA 0.0000: Repeats -0.1389: ASELMAx3 ITROMAIx2 LAPAURAx2 PAURAx3 CHENELx2 ETACHEx2 ACHEx4 ODELCx2 RACHEx2 CHELAx2 ADURAx2 URATAx2