Re: VMs: VMS Lookalike encipherment

[Elias Schwerdtfeger <elias@xxxxxxxxxxxxx>]

Hello Jeff,

> http://www.georgeboolefanclub.com/VMSVerboseCipher.html

it looks appealing. A very simple method to encrypt an plaintext to a
VMS-like looking ciphertext.

I wrote a little Python script to apply your method - as far as I
understand it - to some amount of text. From my german plaintext

<snip>
Dieser Text wird zum 
Testen verwendet. Ein
Test dient nur dazu, 
zu ueberpruefen, ob
ein Ablauf den 
Planungen und 
Erwartungen
entspricht.
</snip>

my program creates the encrypted text 

<snip>
<test.txt.1> oek.oke.okoraiin.okoiin.aiinaiirain.ekar.shaiin.rair.odoiin
<test.txt.2> aiinoiin.oteaiin.okoyom.otarainaiir.okoy.shoky.okksh
<test.txt.3> yoiin.oteaiin.shek.otshal.shair.aral.oaiin.dal.eaiir
<test.txt.4> alal.sainaiir.okoin.aiokor.dyorain.otckh.otshey.sair
<test.txt.5> okksh.aaios.aain.cfhy.ootsh
<test.txt.6> dyy.eoaiil.dshaiir.shair.cthoiin.otoyaiir.shaiin.shin
<test.txt.7> otorainain.daralaiir.shoin.cthaiir.oksh
<test.txt.8> okshaiin.rom.dyar.kair.yty
</snip>

This looks of course a little bit strange compared to the VMS, for two
reasons: My program is a "hack" and not very intelligent in chosing from
the alternatives (it uses a random number generator) and your patterns
seems to be optimized for the letter distribution and grouping in Latin
texts and do not create typical VMS "words" for a german text.

If someone wants to play a little with my script, it can be downloaded
from the following URL:

http://elias.weltretter.de/down.php?dow_id=30

The "dead letters" (I would name them "zeros") and the encryption of the
input text can be disabled by command line options. 

Have fun!


Elias

-- 
Das Schwerdtfeger-Logbuch des alltäglichen Wahnsinns
http://elias.weltretter.de/

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