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Groups > alt.folklore.computers > #153310
| From | Morten Reistad <first@last.name.invalid> |
|---|---|
| Newsgroups | alt.folklore.computers |
| Subject | Re: Enigma rotor made of PCBs |
| Date | 2015-10-24 09:10 +0200 |
| Organization | Me, Myself and I |
| Message-ID | <jfnrfc-2q2.ln1@sambook.reistad.name> (permalink) |
| References | <mvs9cb$oh6$1@frotz.eternal-september.org> <alpine.LNX.2.02.1510231332370.21502@darkstar.example.org> <kk8l2bd2hmp1ic2rdaokc6ncg7qao4l325@4ax.com> <d8vphqFeq5aU18@mid.individual.net> |
In article <d8vphqFeq5aU18@mid.individual.net>, Bob Eager <news0005@eager.cx> wrote: >On Fri, 23 Oct 2015 14:14:12 -0700, Gene Wirchenko wrote: > >> On Fri, 23 Oct 2015 13:36:43 -0400, Michael Black <et472@ncf.ca> >> wrote: >> >> [snip] >> >>>I've read some, and the impression I got was that having the machine, >>>from the Poles, didn't in itself solve the problem. They really did >>>rely on blunder, the sequence not changed the way it should have been, >>>and information sent in the clear that helped to value the information >>>encoded, and a lot of brute strength repetitive attempts. >> >> As I understand it, the Nazis started each message about the same >> way, and that gave an in. (Whom it was addressed to, etc.) > >They started with the rotor settings (twice) and that weakened it >considerably. Then, as you say, certain users always used the same format >for messages (e.g. weather reports). > >It was also known for the British to send the RAF out to depth charge >somewhere (Bay of Biscay comes to mind) to trigger a known-form message >if other traffic was absent. There were also incidents of large propaganda rants which were sent in both clear and encrypted. These were identifiable because of the length, and gave a long clear text to the codebreakers. -- mrr
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Enigma rotor made of PCBs davidmylastname@acm.org (David Griffith) - 2015-10-17 01:47 +0000
Re: Enigma rotor made of PCBs Dave Garland <dave.garland@wizinfo.com> - 2015-10-16 22:18 -0500
Re: Enigma rotor made of PCBs scott@slp53.sl.home (Scott Lurndal) - 2015-10-19 13:11 +0000
Re: Enigma rotor made of PCBs Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2015-10-16 21:44 -0600
Re: Enigma rotor made of PCBs Jon Elson <elson@pico-systems.com> - 2015-10-21 11:35 -0500
Re: Enigma rotor made of PCBs Greymaus <mausg@mail.com> - 2015-10-22 11:38 +0000
Re: Enigma rotor made of PCBs "gareth" <no.spam@thank.you.invalid> - 2015-10-22 16:18 +0100
Re: Enigma rotor made of PCBs Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-22 18:22 +0000
Re: Enigma rotor made of PCBs Quadibloc <jsavard@ecn.ab.ca> - 2015-10-22 17:32 -0700
Re: Enigma rotor made of PCBs "78lp" <78lp@nospam.com> - 2015-10-23 14:14 +1100
Re: Enigma rotor made of PCBs Michael Black <et472@ncf.ca> - 2015-10-22 11:48 -0400
Re: Enigma rotor made of PCBs Quadibloc <jsavard@ecn.ab.ca> - 2015-10-22 11:08 -0700
Re: Enigma rotor made of PCBs "78lp" <78lp@nospam.com> - 2015-10-23 14:21 +1100
Re: Enigma rotor made of PCBs Morten Reistad <first@last.name.invalid> - 2015-10-23 10:43 +0200
Re: Enigma rotor made of PCBs Greymaus <mausg@mail.com> - 2015-10-23 11:06 +0000
Re: Enigma rotor made of PCBs "Osmium" <r124c4u102@comcast.net> - 2015-10-23 10:00 -0500
Re: Enigma rotor made of PCBs "gareth" <no.spam@thank.you.invalid> - 2015-10-23 16:22 +0100
Re: Enigma rotor made of PCBs Greymaus <mausg@mail.com> - 2015-10-23 17:27 +0000
Re: Enigma rotor made of PCBs Michael Black <et472@ncf.ca> - 2015-10-23 13:40 -0400
Re: Enigma rotor made of PCBs Stan Barr <plan.b@bluesomatic.org> - 2015-10-24 06:54 +0000
Re: Enigma rotor made of PCBs Greymaus <mausg@mail.com> - 2015-10-24 10:57 +0000
Re: Enigma rotor made of PCBs "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-25 18:47 -0500
Re: Enigma rotor made of PCBs "78lp" <78lp@nospam.com> - 2015-10-24 12:36 +1100
Re: Enigma rotor made of PCBs "78lp" <78lp@nospam.com> - 2015-10-24 12:29 +1100
Re: Enigma rotor made of PCBs "Osmium" <r124c4u102@comcast.net> - 2015-10-23 10:24 -0500
Re: Enigma rotor made of PCBs Quadibloc <jsavard@ecn.ab.ca> - 2015-10-23 10:32 -0700
Re: Enigma rotor made of PCBs "Osmium" <r124c4u102@comcast.net> - 2015-10-23 13:51 -0500
Re: Enigma rotor made of PCBs Greymaus <mausg@mail.com> - 2015-10-24 10:36 +0000
Re: Enigma rotor made of PCBs Michael Black <et472@ncf.ca> - 2015-10-23 13:36 -0400
Re: Enigma rotor made of PCBs Jon Elson <elson@pico-systems.com> - 2015-10-23 15:13 -0500
Re: Enigma rotor made of PCBs danny burstein <dannyb@panix.com> - 2015-10-23 20:25 +0000
Re: Enigma rotor made of PCBs "Osmium" <r124c4u102@comcast.net> - 2015-10-23 15:51 -0500
Re: Enigma rotor made of PCBs "Osmium" <r124c4u102@comcast.net> - 2015-10-23 15:59 -0500
Re: Enigma rotor made of PCBs David Wade <dave.g4ugm@gmail.com> - 2015-10-24 18:51 +0100
Re: Enigma rotor made of PCBs Walter Bushell <proto@panix.com> - 2015-11-20 21:33 -0500
Re: Enigma rotor made of PCBs Jon Elson <elson@pico-systems.com> - 2015-11-20 23:12 -0600
Re: Enigma rotor made of PCBs Gene Wirchenko <genew@telus.net> - 2015-10-23 14:14 -0700
Re: Enigma rotor made of PCBs Bob Eager <news0005@eager.cx> - 2015-10-23 22:10 +0000
Re: Enigma rotor made of PCBs Morten Reistad <first@last.name.invalid> - 2015-10-24 09:10 +0200
Re: Enigma rotor made of PCBs JimP <solosam90@gmail.com> - 2015-10-23 19:19 -0500
Re: Enigma rotor made of PCBs Dave Garland <dave.garland@wizinfo.com> - 2015-10-23 20:13 -0500
Re: Enigma rotor made of PCBs Michael Black <et472@ncf.ca> - 2015-10-24 09:13 -0400
Re: Enigma rotor made of PCBs Greymaus <mausg@mail.com> - 2015-10-24 10:47 +0000
Re: Enigma rotor made of PCBs Jon Elson <elson@pico-systems.com> - 2015-10-23 14:46 -0500
Re: Enigma rotor made of PCBs "Osmium" <r124c4u102@comcast.net> - 2015-10-23 15:48 -0500
Re: Enigma rotor made of PCBs barrym95838@yahoo.com - 2015-10-22 23:40 -0700
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