PAGE_23_COEW  (Swedish Enigma M3 intercept):


Image "Swedish Enigma M3 intercept"
Swedish Enigma M3 intercept
ENIGMA M3 MESSAGE KEY (Swedish Enigma M3 intercept COEW):

Type: M3
Reflector: B
Wheel Order: 1 6 2
Ring Settings: ATG  Alternate: AGG
Message Key: QXP  Alternate: QKP
Grund: Unknown
Plugs: AB EG JS LQ OT VY

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Solution of naval Enigma message COEW of 11 April 1940:

Message as intercepted:
1225/31   COEW CKPA ODXO DHQK XTRE YPFL GSKH WOPD IJQC ELMP FEEJ TKTI ASWQ EHDV TOMJ COIH RWQF CKER TWNQ MXGB DWWF MGVJ NWPQ TXXO WEOP IEYD PGDV QDNR DMJM COEW CKPA

Message indicator groups: COEW CKPA

Ciphertext (without indicator groups):

ODXODHQKXTREYPFLGSKHWOPDIJQCELMPFEEJTKTIASWQEHDVTOMJCOIHRWQFCKERTWNQMXGBDWWFMGVJNWPQTXXOWEOPIEYDPGDVQDNRDMJM

Plaintext:

GRUPEVONBREMENWELESIEBENEINSMETERABEINSNULNULNULUHRUNBRAUCHBARACHTENABEINSVIERUHRAUFABSTIMUNGDREISECHSMETERG

Interpretation (Plaintext with word divisions and with garbles corrected):

Gruppe von Bremen:
Welle 71 Meter ab 1000 uhr unbrauchbar, achten ab 14 uhr auf Abstimmung 36 Meter.

Translation (preliminary):

[To] Group from Bremen:
Wavelength 71 meters unusable as of 1000 hours; from 1400 hours look out for tuning on 36 meters.

Broken by Dan Girard