Mynglis

08-06-16

DAY WFM OBV

Filed under: Ciphertext — kd5bjo @ 00:10
EVQAH HGYVU GDKIQ RHKPW TRQJB
PMZVD HJSOZ ARCFH TQYXC DEQWD
RTJAH ZETZT NQIHZ SRWOI SMJXE
GHUDQ WSVJN WGXFJ QZRJY UMJXS
SSNJY CJUQF HGKAW OAIYE DX.

NAAIP KBGFU YQGWX PMKRM BVNYB
KCYYL KYKQQ EGRBU AQFOE NNKNI
XUPQA WJTBL IFTHO ODYOA SJDKL
FKJJU USHDO KLYAE ZYDKF NWWFC
XNXVN NBWNM MXYXU TXWGW OXPIQ
HAETH RQWFS AKQZ.

BWCDS EWKYQ BWPSL JBPQF KJRAT 
VKMGD MOUAC FNJBE KSHAC TXPMH 
VFQOK CXWYK HULWK HZZMK ELEHW 
DCHZN AIVRB IISPK HEMBX CTHTE 
SK.

YQNXS JMOYX IHIXZ HZFXA EBXEL 
DYZCB KMHPX VQCUC VNAMV AOPJS 
JPGUR VJIPI GZPJZ NRVIL FUXUF 
GZXGK FSFKD JZEEA YTRGD WYHZV 
MIYUQ HSI.

GTSVM YIMON NXEQI MVUFG SWVSB 
ELGLU SQVII NJUPN CRGJE EMHEQ 
QYCVM UJPRE QSDLR OJPEI FYRKS 
KRCUP HNZBL GNBVU MHCSC PBMYF 
NDEAV WWNQD RKHKA QBCJN IVJRO 
WTUPV NHTNK WFXBV ZGJKS EFBGV 
ETVFW NDEUR NNVHK LVGBZ LINDH 
WXXIM APRAY HEHVK IGEFP GZCXJ 
FEQVV ZMZHT GRTWH KVTG.

EOSMY JFIPW IDFAP ZTKUX UDWWQ 
ZURGY CRVXT DBCFW XWXMD ECMDD 
BYOGW DBPWJ MLNCQ XWYWL PUNMD 
NDWVO EZNGG FKZWF CMTVV CPMSU 
WQVKL OMIEF CDEZT PFAAC GHEXQ 
UPWEZ TCNTH KGAGU MQNIS NWZLL 
PHYIF YT.

OWKPH RDJCV CHLQO CGGEE RHXTD 
XKEZT DWWPG FGWSY EHEIX WRMHE 
FKPIF DVAND NVIOS TDQAI ESLPU 
SFNFS LNNEB NPGLK VDUZZ RCOLF 
RCUZY HBVJC WQWQQ RSOBL KDEFI 
WEVPW UIYOX AFODW XUXFX KJZMQ 
NIUNB CTOGT DRZVD NPGNN KJUWB 
ASJIX QCEEJ JRVDY RBVQ.

UFTCZ ZOSKD TCNLT GANSS WWIJP 
KMTJW PLRQW QTCDW AXYFX LTQDW 
KKIYH UZYWH HJOIZ RULXW IJLP.

ZJPUP FNJHJ ZMIKW NJUMK ZMXQO 
GGXIQ TWKPR QWRFT LICLN GVVGU 
FOXIZ DUFQ.
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2 Comments »

  1. Just commenting to say that someone is actually looking at this one. I suspect that I understand the general properties of the cipher but I haven’t worked out the details yet. I also think that I may have guessed a small portion of the plain text but it hasn’t been enough to help much yet. If I don’t make much progress I’ll try to post what I’ve got here to start a community effort.

    Comment by asterisk_man — 08-06-16 @ 11:47

  2. OK, I haven’t been able to figure this one out quite yet so I’ll comment and hope someone else can add the details that I’m missing.
    I assume that each chunk ending in “.” is actually a distinct sentence and that the plain text has had the spaces and other punctuation other than “.” removed.
    It’s not a block cipher because each block is not the same size and there’s no common divisor between the number of characters in each sentence.
    It’s not a simple substitution cipher because the letter frequency is nearly flat (0.27-0.55) for min/max frequency in cipher text vs (0.0007-0.13) for normal english. There are 1144 unique 2 character combinations (when you include the . in those combinations) so it’s still not likely to be some kind of double character simple substitution.
    I tried to use the four links to guess the text of the link but I didn’t have much luck. I think the plain text of the 3rd link “NEB NPGLK VDUZZ” is actually “bletchleypark”.
    I am pretty sure that this cipher is similar to the last cipher, i.e. some sort of single character substitution cipher where the substitution map changes for every character but where the period of this map cycle is very large.
    Finally, when I put everything together, including the 5 character groups and the links provided I’m forced to assume that it’s the enigma cipher. The problem is that there are so many variations of the enigma cipher that it’s hard to tell what to try to crack.
    Hopefully this info will help others to find their way to the solution. Please post more info here when you have it!

    Comment by asterisk_man — 08-06-18 @ 10:45


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