GC&CS - Station X
June 30, 1944
To Deputy Director
John Tiltman,
Sir,
The French gave us
the manual of the machine T52/c. They
captured it on the island of Elba.
I did a translation
of this manual.
Thanks to it and
thanks to our previous works about this
machine, I managed to encrypt a message by following the
German procedures. This exercise can be used by our teams
trying to decipher encrypted messages with this machine.
Best Regards,
Michael Crum.
=========== Example
==========
I have encrypted the
following message with this key:
Inner Key: 3,1,II,V,9,7,I,IV,5,III
(From "A" wheel to "K" wheel)
External Key:
11:19:49:27:59:61:19:42:10:17
(From "K" wheel to "A" wheel)
Message Key Unit:
ZXUSP
NEFERW3FHOM+FMB8W/MNUDFKZCPOML9HX+8IPDEF3ER9FYZIJW
DQL+QWP8KE+SAJNAX3MHAWIKEFDW9SH9MABXOJT4+E9P+83PSO
UM+G+M9POFHICOPBED4XMINQUGURU/OFBGE3SWLAT4UM9MGJ/O
U9SVVRJANYTYGDZJPQULDGZOGTGDQ4BG+RCTNJ3US99BHO9YKN
WFRVSGOVGYEYBWNOPNGCF94NQUZL4LVEWJXZ898+VBPZ/9NGHT
LFGRDCJSXLB9DFLICXRPR+EDOLP9PLZ388RICYRH8EN3/LHYPC
RVF43DPYPOPIR9NOBKHF3JXOAU8Y44N+KFF/LIQCPILGP+QVVR
U3LRSBELXXPPAZUWI+MLBE83KMBBKY3ENSFLAMQYRLMILV9DLB
9TOKPW+RFRTDEPZ3/EEHZTY/U3VJGB/UTTDQGEHIDSSRMDDDUR
L448Z+4TWKLY3V4HY9QJDUZVBKG8MM