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The German Naval cipher text messages below, enciphered on the Naval Enigma M4, have been provided by Ralph Erskine as his contribution to the ongoing M4 Message Breaking Project. Other messages will be provides as soon as they become available.
For further information about German Naval messages and their Enigma keys please see Ralph Erskine’s article Naval Enigma Ciphers.
German Naval Enigma M4 message in the Enigma key Shark (Triton):
SHARK SIGNAL 6 MAR 45: 1414/6/36 90 CXSO UNVZ NEWM ESUC IIFP RLEE TPNZ LPYJ WDKL LDUJ URJL BUKF WNKR SPEN ZUPZ LWJF GCHH JMEL KFKP WCMD RGAF UMZE VOEN UUQG TXIP ZQKP SRAM CEWJ NIFR SCXX NRCQ TYAB YRDT IRZF VJIJ JGHU GKJU TPPY POFN LLJI QCOE DQAM EKSY ZSWZ ZJGF ERGG LJTL AWUP HBST LIUP GJTO BBYC NTST KPBU ESSK EYDR ZDSA DABE TWRU KDHC ZPQL ZCXM YVIV WBBO HVJB KTZW MUTK YJJQ ZVFC EDGH SQWE ODAO HOBT ESCL AARE EAKH SSQN IPCI XHJW GCWL WFTZ ZDGP KIXE PATD AXEY JDFG SDUN FUKR CXSO UNVZ
German Naval Enigma M4 message in the Enigma key Turtle (Medusa):
TURTLE SIGNAL 7 OCT 1943: 0656/7/504 45 UHGF FJLX VKMJ CZPG OHMR QQRP OUVY KBGW BXCR EDJR XGPQ SFPB FUUC FIET TEDJ VWFJ RDTP UWKM CKYD YDIM RJKR TTPY ECNI HYFB YRXP QEBK TZLL TQQS SGFB DXDQ TUOC NBKN ENVF LTBR NMDC VKIK SKNU MDDR RILD PJXZ QWXO MDFG QOOI UHGF FJLX
German Naval Enigma M4 message in the Enigma key Pike (Aegir):
"JJC" 4265M KCS BGH-60/FS 2058 NR100 W35 8F6 10 JAN., 1944 G =437=Aegir IEDCD KSYGK MFEAH UNOSP OFNNR VBENK VVJNG HYINW QCIGT CNPZY COCKQ EFIJD DISNE UHWKF FZFQQ BVAUC ANKUK RCHMJ UDFZQ FUBAY ICZJE BWZIY QLAJO NJRRD XOIFY MRWHB VXAHB ZNUUJ DTHQP GYGPP TYRZC XKBLD EWOBD YHOVQ XWMDV Note: =437=Aegir appears in handwriting
The German naval Enigma keys Turtle (Medusa – Mediterranean U-Boats) and Shark (Triton – Atlantic U-Boats) shown above were transmitting their cipher messages as 4-letter groups. This was the normal German navy standard for Enigma enciphered messages. However, some German naval Enigma traffic was transmitted in 5-letter groups. Bonito (Eichendorff – Naval Saboteur Messages), Bounce (Kleist – Northern Italy Saboteur Key), Sunfish (Tibet – Far East Merchant Blockade Runners), and Pike (Aegir – Far East Surface Warships) were all transmitted as 5-letter traffic.
The Pike (Aegir) key given above has a very special indicator system. The two first groups (IEDCD KSYGK) and two last groups (YHOVQ XWMDV) belong to the indicator and not ciphertext. The first and the last group (IEDCD and XWMDV) are the designator groups informing the receiving radio/cipher operator which cipher system is used, while the second and second to last groups (KSYGK and XWMDV) are indicator groups allowing the cipher operator to recover the message setting for the cipher message.
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Copyright: Ralph Erskine © 2006
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