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Post by technician275 on Aug 5, 2017 22:28:19 GMT
Hello everyone
Was chatting with Ipaseen a little while back about challenges and it was suggested that I do one for August, and here there are. I kept the same format and copied and pasted links etc. that you need to the various keys etc. As usual please encode your answers. Hope you enjoy the challenge and if you do please post a like or a response.
Technician275
What you need:
An enigma: To even read the challenge you need some kind of enigma and since very few of us are rich enough to have a real enigma we need something cheaper. On internet it is many enigma simulators that can be used. One to
download is at www.enigmaworldcodegroup.com/download-enigma-simulator. An online version I like to use is at people.physik.hu-berlin.de/~palloks/js/enigma/enigma-u_v20_en.html.
A key: The codebook used for this message can be found at enigmaworldcodegroup.freeforums.net/thread/103/2017-ewcg-codebook and there you can also find pointer to how to encrypt/decrypt messages.
[EWCG2017]
2330 1tlr 1tle 80 GVX OTK
PMTDH AYICO IYIQR JJYRA WQBZX VIDXP XMZIB DORVW XRTSZ LHJCQ QPUQT CXPGQ NSRIO GDDFE OBYEA PLPCF
================
TRITON/navy/uboat
If that procedure is to simple, here is a more challenging one - triton, and since the procedure is harder so is the challenge(ish).
See enigmaworldcodegroup.freeforums.net/thread/103/2017-ewcg-codebook for codebook and pointer to triton procedure.
[EWCG2017TRITON]
KFT 2330/05 001 30
XYQN GPGE WTCD MFFD OEQW XBDZ JWIO NUTE PXDB MNHG XYWX RDAQ YNVN CZDD BRXM IVVO KVTM VBQI MPTP OHWT VNYN JBBI XLKW BCWF WMYH BERH MGTH OJJE XYQN GPGE
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Post by technician275 on Aug 10, 2017 21:06:35 GMT
Hello everyone
Was chatting with Ipaseen a little while back about challenges and it was suggested that I do one for August, and here there are. I kept the same format and copied and pasted links etc. that you need to the various keys etc. As usual please encode your answers. Hope you enjoy the challenge and if you do please post a like or a response.
Technician275
What you need:
An enigma: To even read the challenge you need some kind of enigma and since very few of us are rich enough to have a real enigma we need something cheaper. On internet it is many enigma simulators that can be used. One to
download is at www.enigmaworldcodegroup.com/download-enigma-simulator. An online version I like to use is at people.physik.hu-berlin.de/~palloks/js/enigma/enigma-u_v20_en.html.
A key: The codebook used for this message can be found at enigmaworldcodegroup.freeforums.net/thread/103/2017-ewcg-codebook and there you can also find pointer to how to encrypt/decrypt messages.
[EWCG2017]
2330 1tlr 1tle 80 GVX OTK
PMTDH AYICO IYIQR JJYRA WQBZX VIDXP XMZIB DORVW XRTSZ LHJCQ QPUQT CXPGQ NSRIO GDDFE OBYEA PLPCF
================
TRITON/navy/uboat
If that procedure is to simple, here is a more challenging one - triton, and since the procedure is harder so is the challenge(ish).
See enigmaworldcodegroup.freeforums.net/thread/103/2017-ewcg-codebook for codebook and pointer to triton procedure.
[EWCG2017TRITON]
KFT 2330/05 001 30
XYQN GPGE WTCD MFFD OEQW XBDZ JWIO NUTE PXDB MNHG XYWX RDAQ YNVN CZDD BRXM IVVO KVTM VBQI MPTP OHWT VNYN JBBI XLKW BCWF WMYH BERH MGTH OJJE XYQN GPGE
Hi Everyone
Apologises
there is an error in the key group for the TRITON challenge so that is all I changed/corrected
[EWCG2017TRITON]
KFT 2330/05 001 30
MKXO NFUQ WTCD MFFD OEQW XBDZ JWIO NUTE PXDB MNHG XYWX RDAQ YNVN CZDD BRXM IVVO KVTM VBQI MPTP OHWT VNYN JBBI XLKW BCWF WMYH BERH MGTH OJJE MKXO NFUQ
also a link might be working so try this one
A key: The codebook used for this message can be found at enigmaworldcodegroup.freeforums.net/thread/103/2017-ewcg-codebook and there you can also find pointer to how to encrypt/decrypt messages
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Post by technician275 on Aug 10, 2017 21:07:37 GMT
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Post by lpaseen on Aug 16, 2017 4:43:25 GMT
I had hoped someone else would give the first answer but I guess not so here comes mine
[EWCG2017]
0440 1tle 1tlr 26 FPZ SZA
SRRBE OYQJB FYEDF BAEPF COBDF PJNJD GBTNC FFMHK FJEIT ZNKCC ZVQTX KHZGE HLMYP
LOQCA NKLBR SDBPI KDOBT AMYLX JQARS EOFHM FVTLX HFAHW ACZUK VPTXN WTEOJ SHMBM
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Post by technician275 on Aug 16, 2017 20:17:58 GMT
I had hoped someone else would give the first answer but I guess not so here comes mine [EWCG2017] 0440 1tle 1tlr 26 FPZ SZA SRRBE OYQJB FYEDF BAEPF COBDF PJNJD GBTNC FFMHK FJEIT ZNKCC ZVQTX KHZGE HLMYP LOQCA NKLBR SDBPI KDOBT AMYLX JQARS EOFHM FVTLX HFAHW ACZUK VPTXN WTEOJ SHMBM
[EWCG2017]
2120 1tlr 1tle 135 SGH KTO
FOEHJ HQUZK XKDJO MYAMY JFOJC MEVNW MVMNH VERDF AMSFJ FSCXL FTATU VZJTO WQMZH VCSRT KCBXU ZZIPS XHNRQ LCBDR KTSTG LOQUC MFAGE EQTJJ HVPUC XCVFS TTBYQ DXSJL ZFSHQ
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Post by lpaseen on Aug 18, 2017 2:39:07 GMT
[EWCG2017TRITON]
BRO 0052/18 023 23
KDXW RGMI BEBW WCYW JCWT YKMA IFUE PLYN PNWK XLDY YDSS MACP YXJR YAPK BEXA
LYZN YYVM IKLO ERHE EEYW AHPQ KDXW RGMI
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Post by technician275 on Aug 18, 2017 20:36:06 GMT
[EWCG2017TRITON] BRO 0052/18 023 23 KDXW RGMI BEBW WCYW JCWT YKMA IFUE PLYN PNWK XLDY YDSS MACP YXJR YAPK BEXA LYZN YYVM IKLO ERHE EEYW AHPQ KDXW RGMI [EWCGTRITON2017] NCE 2145/18 001 21 QCCN ZAMY LEQY RAWN IMVC HMVQ LJQP BKED NSXN VMKF AHBC VWXS KCAQ EIDS ORCJ TZXK PBUC IRNJ PMYI QCCN ZAMY |
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Post by mauser on Aug 26, 2017 18:52:00 GMT
Here is an interesting anomaly in this challenge. Pretend you are an analyst at BP and you are trying to read this TRITON message. Because of great luck, you have the encryption key and stecker data for the 5th of August. You know that crypto clerks generating the message are using the outdated 1940 M Allgemein manual so they are using only three wheel settings for the message key. So you realize you only have to try 17,576 possible message keys instead of 456,976 message keys.
So what to your amazement, you find that a message key of RRZF and RSAF results in exactly the same message! On my home breaker that took all of 2.72 and 2.73 seconds.
When trying the entire 456,976 possible message keys, the time to break is: 70.64 and 70.66 seconds respectfully.
I tried adding different cribs as well. The most popular cribs on this group are: Enigma (of course!), Turing, Bletchley, Park, where, wherewas, whereis, England and combinations of those. I used one of those and found the message in: 68.97 and 68.98 seconds. Now at time 69.61 seconds and message key RWBF, we find our crib, but the rest of the message is garbled. Other crib hits are at 11.00 seconds, message key CVOF, at 28.22 seconds and message key HHGF, and at 63.73 seconds and message key QJHF. These partials tell us that the 4th letter in the message key must be an 'F' and more importantly, the crib is found in the message in exactly the same position in all cases.
Enjoy your weekend.
Mauser sends.
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Post by Arduino Enigma on Aug 27, 2017 15:08:06 GMT
home breaker?
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