PAGE_47_KRNV (Swedish Enigma M3 intercept):

Swedish Enigma M3 interceptENIGMA M3 MESSAGE KEY (Swedish Enigma M3 intercept KRNV):
Type: M3
Reflector: B
Wheel Order: 7 4 6
Ring Settings: A G W or: A G J
Message Key: R T A or: R T N
Plugs: BM DX EW GP JO KV NZ RT
Picture source and copyright: http://signalspaning.se
Solution of naval Enigma message KRNV of 20 February 1940:
Message intercepted by Norrköping police radio station at 0315 on 20/2 1940:
0249/25 25 KRNV USMN IWNO XNFT RJNP MRAW PZNK QECK KTWI OBEX LBHF LHHJ LMYC ZGCY SLCU DIJD LGQQ PRYU RGKG TFKR QEPI OVBI KRNV USMN
Message indicator groups: KRNV USMN
Ciphertext (without indicator groups):
IWNOXNFTRJNPMRAWPZNKQECKKTWIOBEXLBHFLHHJLMYCZGCYSLCUDIJDLGQQPRYURGKGTFKRQEPIOVBI |
Plaintext:
SEENACHRICHTLEUCHTSCHIFFEMILSXBQPLANNORDFUENFNUOMERDREIEINSLIEGTWIEDERAUFSTATION |
Interpretation (Plaintext with word divisions and with garbles corrected):
Gruppe von Bremen:
Seenachricht: Leuchtschiff Emil S.B. Plan Nord 5 Nummer 31 liegt wieder auf Station.
Translation (preliminary):
Sea report: Lightship Emil S.B. Plan North 5, Number 31 is again lying on station.
Note:
- This message was broken with hillclimbing software, giving the day’s Enigma key settings; after which the other four messages (PHZH, YEXP, DOEP, KRLR) from that day could be solved with a simple search for their message keys.
Broken by Dan Girard