Re: M4 project
Matt R <[email protected]>
| Newsgroups | gmane.science.cryptography.bletchley-park |
|---|---|
| Message-ID | <[email protected]> |
> >>As a point of interest, has the M4 team issued attempts on the message > >>using 4th rotor gamma and thin UKW "c"? These messages were intercepoted > >>"during the 1941 blackout" (i.e. between Feb and Dec 1941). UKW "C" was > >>introduced "in 1941" according to wikipedia. > >> > > > >The messages are from November 1942 ... > >I don't think C/gamma was in service before these messages were sent. > >wikipedia may be wrong - another job for Matt. > > > And of course it was the 1942 blackout, not 1941 as I stated. Wikipedia > still claims 1941 as the introduction for UKW-C on the M3 machines > though. I'm not sure where Wikipedia's 1941 came from from. According to the "History of Hut 8", Caesar/Gamma were introduced to Shark on 1 July 1943. UKW-C was equivalent to Caesar/Gamma in one position, and Hut 6 had solved UKW-C in 1940 when it had appeared briefly, presumably in error. -- Matt Wikipedia: http://en.wikipedia.org/wiki/User:Matt_Crypto Blog: http://cipher-text.blogspot.com ___________________________________________________________ Yahoo! Photos NEW, now offering a quality print service from just 8p a photo http://uk.photos.yahoo.com