From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00
	autolearn=unavailable autolearn_force=no version=3.4.4
Path: 
 border1.nntp.dca3.giganews.com!border3.nntp.dca.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!goblin1!goblin.stu.neva.ru!takemy.news.telefonica.de!telefonica.de!newsfeed.arcor.de!newsspool1.arcor-online.net!news.arcor.de.POSTED!not-for-mail
Date: Fri, 13 Sep 2013 23:12:28 +0200
From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7;
 rv:17.0) Gecko/20130801 Thunderbird/17.0.8
MIME-Version: 1.0
Newsgroups: comp.lang.ada
Subject: Re: library/binding for sftp?
References: <85li4gmhrt.fsf@stephe-leake.org>
 <2wgl8bcmdsu0$.1rs1604fzwufv.dlg@40tude.net>
 <85vc3jfias.fsf@stephe-leake.org>
 <1gwg87tgm2bo7$.ae7440ka6kmc.dlg@40tude.net>
 <85bo59g6h7.fsf@stephe-leake.org> <ul3xotcxb4wh$.1rfdfqdzhndf.dlg@40tude.net>
 <kttvbd$jp7$1@dont-email.me> <bccmiwywovsc.1gr3p41feupbk$.dlg@40tude.net>
 <5987935c-dbce-4602-b0e6-2bb85513588b@googlegroups.com>
 <9oo34px7j5ko$.1j7bcnxwzgcxe.dlg@40tude.net>
 <ef5ac77e-14b7-4328-8b7f-0db73020cee5@googlegroups.com>
 <20130808111404.5fc6ce14@hactar.xn--rombobjrn-67a.se>
 <1nfcrgjw8vkrb.1aukq12ys882l$.dlg@40tude.net>
 <20130808133709.09dfef98@hactar.xn--rombobjrn-67a.se>
 <ku0qti$6nr$1@loke.gir.dk>
 <20130809104904.6ca91de2@hactar.xn--rombobjrn-67a.se>
 <ku3ig5$9ml$1@loke.gir.dk> <alpine.DEB.2.10.1308191900320.24091@debian>
 <kuu8uc$n86$1@loke.gir.dk>
 <52130ff0$0$6552$9b4e6d93@newsspool4.arcor-online.net>
 <20130913115847.29ba1473@PC-8N-L>
In-Reply-To: <20130913115847.29ba1473@PC-8N-L>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Message-ID: <52337fa6$0$6570$9b4e6d93@newsspool4.arcor-online.net>
Organization: Arcor
NNTP-Posting-Date: 13 Sep 2013 23:12:06 CEST
NNTP-Posting-Host: 41aafe05.newsspool4.arcor-online.net
X-Trace: 
 DXC=3352[CQ`nR\Fm0Y?OE@2^X4IUK<Cl32<Q4Fo<]lROoRQ8kF<OcfhCO[?4B]c\D1V0ZPCY\c7>ejVXWdNQMROoEhZRE4X`_L88G[
X-Complaints-To: usenet-abuse@arcor.de
X-Original-Bytes: 2607
Xref: number.nntp.dca.giganews.com comp.lang.ada:183353
Date: 2013-09-13T23:12:06+02:00
List-Id: <comp.lang.ada>

On 13.09.13 11:58, Oliver Kleinke wrote:
>> I'll offer 10,-€ (yes, that's little in view of your average incomes,
>> but is worth some beer) for solving this unknown protocol.
>>
>> SYN1Bo3AHS7SYO3FP9FXN1H7CEK1eR
>
>
> Found your riddle yesterday and tried to solve it.. can you offer a
> hint? 1,3,7,3,9,1,7,1 -- those are the second digits of prime numbers,
> is that of importance? I assume that it is a polyalphabetic
> substitution cipher with the number or prime in front of each group
> being the key or an offset, correct?
>

These include some good stabs. A little simplification here and
a mathematical interpretation of polyalphabet there should
get you closer.