Re: M-209 broken in WWII

2004-10-07 Thread Peter Hendrickson
Hadmut Danisch quoted As a german codebreaker in World War II:
 Even experts didn't know until some years ago that german
 deciphering specialists broke ciphers of the allied in the second
 world war.

German success against the M-209 is discussed in David Kahn's The
Codebreakers.  It cites a 1962 letter as a source, so presumably this
information was in the 1967 edition.  In other words, German
cryptanalytic success has been public for a long time.

Kahn's book has quite a bit of good information on Axis cryptanalytic
efforts.  Germany was particularly successful, and was using
automation to assist their work.

One little gem is that Italy managed to pull off an active attack
against the Yugoslav Army.  They had been reading Yugoslav traffic for
awhile, got into a difficult situation, and convinced two divisions
they had been ordered to retreat using fake messages.  By the time
this was discovered and resolved the game was over.

Peter

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Re: M-209 broken in WWII

2004-09-29 Thread Hadmut Danisch
Anish wrote:
 could you please translate atleast the abstract for the rest of us :-)
http://www.heise.de/tp/deutsch/inhalt/co/18371/1.html
Sure, some of the first paragraphs:
As a german codebreaker in World War II
Klaus Schmeh 23.9.2004
For the first time a witness reported, who was involved in breaking the
US cipherdevice M-209
Even experts didn't know until some years ago that german deciphering
specialists broke ciphers of the allied in the second world war.
But several sources document, that the germans at that time succeeded
to decipher the US cipher device M-209. Telepolis associate Klaus
Schmeh, who is specialised on cryptology, has finally found a 
contemporary witness, who participated in the decryption of M-209
messages.

One of the most fascinating episodes of technical history happend in
World War II. At that time british experts on the manor Bletchley
Park near to London broke the famous german cipher device Enigma under
the strictest secrecy, where they used thousands of people and
for that time top modern data processing devices.
Until some years ago, the doctrine was, that the germans, in contrast
to the british, underestimated the potential of the science of 
deciphering and couldn't read the radio messages of their enemies.
It is known for just a few years, that this assessment is
'political correct' but wrong.For example, the former President
of the Bundesamt fr Sicherheit in der Informationstechnik
BSI (German Federal Office of Security in Information Technology)
Dr. Otto Leiberich reported, that the germans broke the
US cipherdevice M-209 in the WWII, what was absolutely not an
easy untertaking. More documented successes in deciphering proof,
that the german code breakers were even among the best of the world.

The explanations of Otto Leiberich provided also an important source
of information for the author of this article, when he wrote his
recently published book Die Welt der geheimen Zeichen - Die 
faszinierende Geschichte der Verschlsselung (The world of secret
signs - the fascinating history of encryption). An excerpt of this
book, that was published on Telepolis, caused a little sensation:
A 84 year old man from Frankfurt reported to the author and explained
that he was involved in breaking the aforesaid US cipherdevice M-209.
After there were only second-hand reports about german codebreakers
in WWII, for the first time an eye witness appeared, who furthermore
brought some completely new aspects to light. With this article the
memories of this contemporary witness are published for the very first 
time.


OK, these are the first few paragraphs. If you want to have more about
this you should ask the publisher for a translation, because under 
german copyright law even the translation is a right of the author.

regards
Hadmut

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