[GreenKeys] Here's a sweet one on the bay. (crypto machines)

[Mike]

You can download an M-209 simulator for Windows or Linux.

<http://users.telenet.be/d.rijmenants/en/m209sim.htm>


Mike O'Day
N9ODM


On May 21, 2013, at 7:23, "Lester Veenstra" <lester at veenstras.com> wrote:

> Anyone visit the Teletype crypto museum at their HQ?
> 
> 
> Lester B Veenstra  MØYCM K1YCM W8YCM
> lester at veenstras.com
> 
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> -----Original Message-----
> From: greenkeys-bounces at mailman.qth.net
> [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of
> gfmurphy at earthlink.net
> Sent: Saturday, May 18, 2013 8:17 PM
> To: Greenkeys
> Subject: Re: [GreenKeys] Here's a sweet one on the bay. (crypto machines)
> 
> To make the discussion on the Greenkeys list of the SIGABA machine go full
> circle, it is noteworthy that SIGABA, SIGCUM, the KL-7 and the
> KL-47 were all manufactured by Teletype Corporation.  It is very likely that
> they manufactured other devices.  Take a look at Jerry Proc's page on the
> KL-47.  Here's the link:
>   <http://www.jproc.ca/crypto/kl47.html>
> You'll see the Teletype Corp. logo on some items and you'll also see items
> with Teletype part numbers.
> 
> Jerry Murphy
> 
> 
> -----Original Message-----
>> From: Jim Haynes <jhhaynes at earthlink.net>
>> Sent: May 18, 2013 6:15 PM
>> To: Christian Gauger-Cosgrove <captainkirk359 at gmail.com>
>> Cc: nagle at animats.com, greenkeys at mailman.qth.net
>> Subject: Re: [GreenKeys] Here's a sweet one on the bay. (crypto 
>> machines)
>> 
>> On Sat, 18 May 2013, Christian Gauger-Cosgrove wrote:
>> 
>>> 
>>> During WWII, the US actually developed the "best" of the rotor cipher 
>>> machines; it did require power drive, and was rather large. It was 
>>> the SIGABA; which had a grand total of fifteen rotors, which were of 
>>> the "Enigma" style wire scrambler rotors. As I mentioned in a 
>>> previous e-mail; the SIGABA was not cracked until just a few years 
>>> ago. At least publicly; if the NSA found a way to break it, they kept 
>>> mum about that.
>> Also I've read that the U.S. issued new rotor sets once a year and had 
>> a spare rotor set in reserve in case the in-use set was compromised.
>> Whereas Enigma got a couple of rotors added during the course of the 
>> war but the same ones were used throughout.
> 
> 
> 
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