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Post by lpaseen on Oct 18, 2016 4:24:30 GMT
In November I will make another enigma related challenge that is a bit harder but until then here is a simple one. For info on how to solve a challenge, see enigmaworldcodegroup.freeforums.net/thread/75/enigma-challenge-2016[EWCG2016]
IUH DXY
LQBYJ XINLQ JPHKF WRMSF ZTZFQ CBQEH YKHAS HAGXK ZWDNA PZOOO FRCHX YRQLI ZPMOR ZMEJI
PVBNJ PVKPF HVNTG KUAZI VIXMP YDGTI YMCSA NMGFX JMMWQ ZQCPM NGDZG AZIAF WETKK ABQEH
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Post by betacam on Oct 22, 2016 10:26:45 GMT
German military messages enciphered on the Enigma machine were first broken by the Polish Cipher Bureau, beginning in December 1932. This success was a result of efforts by three Polish cryptanalysts, Marian Rejewski, Jerzy Różycki and Henryk Zygalski, working for Polish military intelligence. Rejewski reverse-engineered the device, using theoretical mathematics and material supplied by French military intelligence. Subsequently, the three mathematicians designed mechanical devices for breaking Enigma ciphers, including the cryptologic bomb. From 1938 onwards, additional complexity was repeatedly added to the Enigma machines, making decryption more difficult and requiring further equipment and personnel—more than the Poles could readily produce.
On 26 and 27 July 1939,[3] in Pyry near Warsaw, the Poles initiated French and British military intelligence representatives into their Enigma-decryption techniques and equipment, including Zygalski sheets and the cryptologic bomb, and promised each delegation a Polish-reconstructed Enigma. The demonstration represented a vital basis for the later British continuation and effort.[4] During the war, British cryptologists decrypted a vast number of messages enciphered on Enigma. The intelligence gleaned from this source, codenamed "Ultra" by the British, was a substantial aid to the Allied war effort.[5]
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Post by lpaseen on Oct 22, 2016 22:27:50 GMT
long answer and now no one else need to decrypt the question since the answer is in the clear
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Post by Arduino Enigma on Oct 23, 2016 14:19:38 GMT
[EWCG2016]
IAM BAK
DIDXX RIKVW OGMXL OPVVX ZNSAC ZZFZW HGGDH WGTBK
WYJTV GCDVZ GZVOV IEMBK VAVSO JZOMA SHSBN JQBRH
VQVEA BEJDO DRPEU QWAMM VCNGD EFZJN DKFMX IFNYR
PEEKH HKRMG ZNHKK NKNLR HCPMI YCTHC RWACQ BGBXV
TFGBD FVPPT RTFFP BZGVR GRGSN XFOFE ZPMGG YKXZK
VEJYT DJOFH RDJQO UOSRS MAWFL PVBLC WSPNE ZXABM
CIHUZ TELUG HJULA DMTVY JLBIQ SJBQQ WWXDY QFSCJ
KJLGE CYQQX XMCKQ GXPOQ GFNYJ VUENK QYYHC ROEFV
HHPCF ATRWH GHCDD NEQZG CQMFX BAKJX ZHAXB VNGGQ
IDYWD IEVHO VCXOQ LIUZL GDRTF IZGOU RWTKB IQLGK
URVGT QROSQ ZSUZV LKJAH NVKKZ BUJXP UDTJL BNJNX
KOKBR QWCFX UAOCJ GCHPY JXKTM WQAVH TUNUW ZMIIT
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Post by Arduino Enigma on Oct 23, 2016 15:11:18 GMT
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Post by lpaseen on Oct 24, 2016 12:26:59 GMT
My setup is a little simpler, one meinenigma or a standalone arduino nano with keys for up to 15 days stored. Then I just load the key I need and code away.
Was going to enter a november challenge on Nov 1 but I will be out of town and very busy then so it will probably not be until nov 2 or so.
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Post by lpaseen on Oct 24, 2016 23:48:08 GMT
[EWCG2016]
XJW ZOG
SLHXH TPHOI ATEIM DSNXO FWXEC AYKIO VWHGG PEDWD VWQJO SNREZ
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Post by lpaseen on Oct 25, 2016 2:07:06 GMT
While searching for future trivia questions I stumbled over a enigma quiz at www.funtrivia.com/playquiz/quiz55231655690.html and I of course had to take it. I got all 10 right, and I even knew the answers before reading the options (or the hint), how many right do you get ? |
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Post by Arduino Enigma on Oct 25, 2016 2:50:48 GMT
NOT OPN DDTXX HBDJA VCZND VPTUF LKRYP GYOCJ LFBXO HFKJN DYTGY PFJUP QODLY JPAVR HAADV ZIOIR PPVAR AANAK OMXUV YRSSY KLSKL GEBUH ILQUJ BCSIV SMWBU ZDMIM VTJNR BRTVN JHXOJ http://instagram.com/p/BL-BeAQBJzG |
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Post by Arduino Enigma on Oct 30, 2016 16:15:38 GMT
LUV PIC
HYPER GFOMT VVQLA PWDBQ MHEIK JUPXK PXCLI RRLRX
RJFMD MNYGE KJVCW BRZSC UOXBI OYGJF HXXTZ UWZMM
ASSAW WXWLX TAWWJ PHOAW LMGWG PNJ
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Post by lpaseen on Oct 30, 2016 16:53:48 GMT
[EWCG2016]
XCF XKJ
WXDIW HPLMU STGPU LOZAV HLDYG NIFZZ PIEIK NEWZR NMADG GNYON ZIXTF ZBMMS UXKGS DRYHW CS
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Post by lpaseen on Oct 31, 2016 21:37:49 GMT
Heads up, I now have a challenge ready for november. I will just doublecheck it and then release it in a few hours on Nov 1
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Post by technician275 on Jun 30, 2017 0:11:32 GMT
[EWCG2017TRITON]
RFK 0115/30 001 28
XJNQ VCKD LBRT MIPF RGGP LRJK DFTI MVFU IDNS UTZV JFAE YDOK CVER NEEK BCUZ VPLD XHJT YOWE EWVV UALZ NCKM EFPP ZVSS VDPR HDZC PSHG XJNQ VCKD
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Post by lpaseen on Jul 30, 2017 2:28:58 GMT
[EWCG2017TRITON] RFK 0115/30 001 28 XJNQ VCKD LBRT MIPF RGGP LRJK DFTI MVFU IDNS UTZV JFAE YDOK CVER NEEK BCUZ VPLD XHJT YOWE EWVV UALZ NCKM EFPP ZVSS VDPR HDZC PSHG XJNQ VCKD Something is wrong here, can't decrypt it. Using bigram table for 2017-06 I decode what looks like a valid key for 2017-07-30 but deconding the rest gives garbage, decoded text starts with "PXYO LSEP EEXD..." |
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Post by technician275 on Jul 30, 2017 22:54:50 GMT
[EWCG2017TRITON] RFK 0115/30 001 28 XJNQ VCKD LBRT MIPF RGGP LRJK DFTI MVFU IDNS UTZV JFAE YDOK CVER NEEK BCUZ VPLD XHJT YOWE EWVV UALZ NCKM EFPP ZVSS VDPR HDZC PSHG XJNQ VCKD Something is wrong here, can't decrypt it. Using bigram table for 2017-06 I decode what looks like a valid key for 2017-07-30 but deconding the rest gives garbage, decoded text starts with "PXYO LSEP EEXD..." Sorry about, cant locate my notes for that date. so I'll just resent the answer
[EWCGTRITON2017]
GHY 2355/30 001 14
TAKA THQP DXGE SDHC WNUW DIFO CWHO BEIN FRLZ AQMT SOGU OLDA TAKA THQP
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