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Post by hobbit601 on Mar 27, 2019 20:30:18 GMT
Hello all, I need some assistance please - I'm working through some basic M4 decrypting, and with each so far with no success. For example from the Mar/Apr 2018 newsletter I've attempted to decode the following message:
"Message #3:
Please use the Kriegsmarine “Basic” decrypting procedure located on the Home page to decrypt this message. The date used is the 9th. The Key Indicator is LFM.
BRU 1955 9 001 58
BBRH HOSU NYYB YKRJ YJKU VUFX KXXX QSHH EWLN KCSJ LTKA BHVZ RHXD UXVS BYLN ALYM LBFO
LKQG ZOUA KGAF PJBU QJHM PUTS JOBJ XZCT HZNX BWOS QHHP VHGH QWIJ LJFV RZUJ VWUX RCJY
HGCH ZDUI CDZY PCBM GRPI IOOQ MHUC EUGV CEZP AKRR STTD SRAW LTVB MSXP MBYK VOZP FNIA
ULRH CHQK EMCR WIJG OMMS FJCV LYGT YWPA AWRH BBRH HOSU "
So, following the example in the Kriegsmarine basic decryption procedure and associated tables I came up with the following:
BBRH
HOSU
BB=JI RH=YI
HO=HO SU=TM
JIYI HOTM
J Y H T
I I O M ... YHT seems to be the trigram, however for the 9th day of the month it should be LFM.
I seem to be missing something here. Thanks in advance.
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Post by nilatacb on Mar 27, 2019 21:04:50 GMT
I think the secret here is the "Home page" mention. LFM appears on the link from the home page. Start here: www.enigmaworldcodegroup.com/basic-decrypting-procedureThe inner and outer settings have the LFM setting for the 9th.
P.S. Might have misunderstood the issue. If so, apologies.
Edit: Nvm. I think I understand the question now: correct me if I'm wrong: what bigram tables lead to LFM?
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Post by hobbit601 on Mar 27, 2019 22:30:15 GMT
Hi, thanks for the reply. I used the bigram table linked in the procedure: Decrypting a Kreigsmarine 4-rotor Basic Procedure Kriegsmarine M4-UKW = B M4-UKW = C BASIC PROCEDURE Decrypting a Kriegsmarine 4-rotor message Note: The Kriegsmarine 4-rotor Enigma machines (M4) are more.... ...Print-out a paper copy of all of these documents: The Kreigsmarine Basic Decrypting Procedure Inner Settings Outer Settings Bigram Table -> docs.wixstatic.com/ugd/c8f6f9_d2fee990248a445c9ec0d543feed8fdc.pdf
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Post by hobbit601 on Apr 1, 2019 21:20:13 GMT
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