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Re: Re: VMs: Further investigatio of folio f1r
From: "Jan" <hurychj@xxxxxxxxx>
Sent: 08 April 2004 14:34
> Hello Dennis,
> ======= At 2004-04-07, 18:05:00 you wrote: ======= > > Have a look at my
> ---Will do, thanks.
> > > Under "Verbose Ciphers", I discuss a verbose cipher I >devised called
> Latin". Cat Latin takes a Latin >plaintext and produces a ciphertext with
> the same >single-letter frequencies as Latin but with digraph >frequencies
> are very different. The first- and >second-order entropies of Cat Latin
> those of >Voynichese closely! However, Cat Latin looks nothing >like
> and has far longer word lengths.
> ---Interesting, I dd not know there was all that already considered.
> > > I think
> you will agree that the combinations EVA ><[i][i][i]n>, <[i][i][i]r>,
> <sh>, <ee>, <qo>, ><dy>, <ol>, <or>, <os> and <al> are very common in the
> If these are present in the source text, a >transposition cipher that
> on the single >characters* would break them up. I find it hard to
> transposition cipher that would *produce* >them in the ciphertext.
> --- Definitely not, unless those are nulls, clusters of nulls or some
> embellishments. But that would mean the additional "encoding" which I hate
> contemplate, since even without it we have a hard case to crack .-)
I have recently done a substitution run using gallows as change indicators
that produced a fairly regular pattern that could easily represent nulls. So
it may well be a hard case to crack. I have done no further work on this
though. It is put aside for a rainy day.
> > > Of
> course, if these combinations are in the plaintxt >and the transposition
> *rearranges them as >units*, it would be conceivable.
> ---Interesting idea.
> > > Finally, transposition ciphers typically do not leave
> >word divisions intact.
> Right you are and spaces may be either: a) spaces, but all in wrong places
> (pardon the rhyme), or b) original spaces can be all deleted, letters
> and interposed by spaces functioniing as "nulls". regards,
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