[Spooks] Spooks Digest, Vol 122, Issue 3

[Preflatish]

Date: Mon, 17 Mar 2014 19:39:10 +0100
From: Gian Romani <romanigian at gmail.com>
To: Shortwave Spy Numbers Stations <spooks at mailman.qth.net>
Subject: [Spooks] New question on NS
Message-ID:
<CAP5QLVSkSjFr4Cwzuhq0AEwQ3z+G0Y2M-fiBfU0tSXBKHFYj_Q at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Hi everybody, this is my new question: a lot of trasmissions have similar
structure. Why the whole message is generally divided in 5 letters (or 5
numbers) groups? Or sometimes 4 letters/numbers? Is it just for practical
reasons, because 5 letters or 5 numbers are the ideal format to listen to
and write? Maybe longer structures affects readability and cause
transcription errors due to misunderstanding and lack of concentration? Are
there other reasons? Since most messages have same structures it means that
to be prepared (i.e. to encrypt the clear text) is used the same method:
why? Why don't eachone use a different method? To encrypt these messages I
think a software is used: after all this time and all those messages sent
and received, does some information about that has ever came out? Does
anyone has info or suspects for that? Is there any software useful to try
to decrypt this structure?
thank you, bye
Naig


 Actually if the encoded message was sent in it's proper word groups, it would make it easier to decipher.  Making it all 5 letter groups even to the point of 'fill' to make the groups come out even makes it harder to decrypt.