Editing Enigma machine (section)

=== Additional details ===
The Army Enigma machine used only the 26 alphabet characters. Punctuation was replaced with rare character combinations. A space was omitted or replaced with an X. The X was generally used as full-stop.

Some punctuation marks were different in other parts of the armed forces. The ''Wehrmacht'' replaced a comma with ZZ and the question mark with FRAGE or FRAQ.

The ''Kriegsmarine'' replaced the comma with Y and the question mark with UD. The combination CH, as in "''Acht''" (eight) or "''Richtung''" (direction), was replaced with Q (AQT, RIQTUNG). Two, three and four zeros were replaced with CENTA, MILLE and MYRIA.

The ''Wehrmacht'' and the ''Luftwaffe'' transmitted messages in groups of five characters and counted the letters.

The ''Kriegsmarine'' used four-character groups and counted those groups. 
Frequently used names or words were varied as much as possible. Words like ''Minensuchboot'' (minesweeper) could be written as MINENSUCHBOOT, MINBOOT or MMMBOOT. To make cryptanalysis harder, messages were limited to 250 characters. Longer messages were divided into several parts, each using a different message key.<ref>{{cite web|url=http://www.codesandciphers.org.uk/documents/egenproc/eniggnix.htm|title=The translated 1940 ''Enigma General Procedure''|publisher=codesandciphers.org.uk|access-date=16 October 2006}}</ref><ref>{{cite web|url=http://www.codesandciphers.org.uk/documents/officer/officerx.htm|title=The translated 1940 ''Enigma Officer and Staff Procedure''|publisher=codesandciphers.org.uk|access-date=16 October 2006}}</ref>{{Clear}}