Posted May 23, 2015 What is the source? Do we even know if it is solvable? The first thing you need to crack any code is knowledge that something is being communicated. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 I just realized that I didn't try negative values when brute forcing, but none of the tools I find online work with negative values. because +14 = -12, +15 = -11 and so on, it just wraps around Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 because +14 = -12, +15 = -11 and so on, it just wraps around Yeah, I realized that. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 Xvsnqof h zygeavfyhc ujqzj pxkx h xqcesk xpwxaqapaqvo zqejky uqaj eko hol eheky, yhajky ajho pxqof ho vosqok avvs, qx ova ehyaqzpshysg lqttqzpsa. Qo h fkvzhzjqof epbbsk qo ajqx hykh qa uqss eyvwhwsg wkfqo uqaj ovyaj tvyag xknko lkfykkx ajykk tvpy. Ajk skaaky ehaakyox vt xknko hol ajykk hyk lqxaqozaqnk. Qa jksex av pxk h ikg, tqssqof qo skaakyx hx ajkg hyk qlkoaqtqkl. Ajk ikg zho wk xvyakl hsejhwkaqzhssg wg eshqo akma vy zqejky akma Solving a cryptogram which uses a simple substitution cipher with pen and paper, rather than using an online tool, is not particularly difficult. In a geocaching puzzle in this area it will probably begin with north forty seven degrees three four. The letter patterns of seven and three are distinctive. It helps to use a key, filling in letters as they are identified. The key can be sorted alphabetically by plain text or cipher text Thats a solution but as said by the solution not the right solution. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 Author Decryption Key A|B|C|D|E|F|G|H|I|J|K|L|M ------------------------- N|O|P|Q|R|S|T|U|V|W|X|Y|Z (letter above equals below, and vice versa) tried that. first word made no sense. Just a guy who peaked at building back in the days of the GTX 980. If you see me here, assume i have technical knowledge akin to a committed hobbyist builder back then. If something's changed, you'll need to tell me(nicely plz). I'm probably asking for help with the modern build scene since I have no clue what's going on. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 Do you have more text? Can't find any distinct patterns Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 Author heard some concern on what you are cracking might be bank info, so here's what you are cracking: http://www.geocaching.com/geocache/GC5K5Z7_old-school-solve?guid=f38bd150-33da-4256-8c37-33967dbd68a5 Just a guy who peaked at building back in the days of the GTX 980. If you see me here, assume i have technical knowledge akin to a committed hobbyist builder back then. If something's changed, you'll need to tell me(nicely plz). I'm probably asking for help with the modern build scene since I have no clue what's going on. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 Author Do you have more text? Can't find any distinct patterns I just tried brute forcing it (number 0-25) and this doesn't seem to be rotation based. @waggythegeek Do you have a keyword or something? no keyword, no more text. sorry... Just a guy who peaked at building back in the days of the GTX 980. If you see me here, assume i have technical knowledge akin to a committed hobbyist builder back then. If something's changed, you'll need to tell me(nicely plz). I'm probably asking for help with the modern build scene since I have no clue what's going on. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 Cipher text: Svsnqof h zygeavfyhc ujqzj pxkx h xqcesk xpwxaqapaqvo zqejky uqaj eko hol eheky, yhajky ajho pxqof ho vosqok avvs, qx ova ehyaqzpshysg lqttqzpsa. Io h fkvzhzjqof epbbsk qo ajqx hykh qa uqss eyvwhwsg wkfqo uqaj ovyaj tvyag xknko lkfykkx ajykk tvpy. Tjk skaaky ehaakyox vt xknko hol ajykk hyk lqxaqozaqnk. Ia jksex av pxk h ikg, tqssqof qo skaakyx hx ajkg hyk qlkoaqtqkl. Tjk ikg zho wk xvyakl hsejhwkaqzhssg wg eshqo akma vy zqejky akma. Substitution cipher: |a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z| |t|z|m|j|p|g|y|a|k|h|e|d|x|v|n|u|i|q|l|f|w|o|b|s|r|c| Sort alphabetically by bottom row. |h|w|z|l|k|t|f|j|q|d|i|s|c|o|v|e|r|y|x|a|p|n|u|m|g| |a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z| Key word is DISCOVERY Plain text answer: Solving a cryptogram which uses a simple substitution cipher with pen and paper, rather than using an online tool, is not particularly difficult. In a geocaching puzzle in this area it will probably begin with north forty seven degrees three four. The letter patterns of seven and three are distinctive. It helps to use a key, filling in letters as they are identified. The key can be sorted alphabetically by plain text or cipher text. I solved it by plotting frequency of letters as @LoneRangerS suggests on the previous page. Then just substitute letter by letter by looking for likely words. MATLAB script I wrote, if anyone is interested: https://www.dropbox.com/s/9iasfl8pt38vhw9/Cipher.m?dl=0 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 In a geocaching puzzle in this area it will probably begin with north forty seven degrees three four.That's obviousThe letter patterns of seven and three are distinctive.The question is where to finds these patternsIt helps to use a key, filling in letters as they are identified.I don't understand thatThe key can be sorted alphabetically by plain text or cipher text This key? Decryption Key A|B|C|D|E|F|G|H|I|J|K|L|M ------------------------- N|O|P|Q|R|S|T|U|V|W|X|Y|Z Can somebody figure that out? Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 Substitution cipher: Answer: I solved it by plotting frequency of letters as @LoneRangerS suggests on the previous page. Then just substitute letter by letter by looking for likely words. MATLAB script I wrote, if anyone is interested: https://www.dropbox.com/s/9iasfl8pt38vhw9/Cipher.m?dl=0 Nice work. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 I solved it by plotting frequency of letters as @LoneRangerS suggests on the previous page. Then just substitute letter by letter by looking for likely words. MATLAB script I wrote, if anyone is interested: https://www.dropbox.com/s/9iasfl8pt38vhw9/Cipher.m?dl=0 Dictionary based substitution attack is included in cryptool2. One click and it is decrypted. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 Dictionary based substitution attack is included in cryptool2. One click and it is decrypted. As the solution says "Solving a cryptogram which uses a simple substitution cipher with pen and paper, rather than using an online tool, is not particularly difficult." Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 As the solution says "Solving a cryptogram which uses a simple substitution cipher with pen and paper, rather than using an online tool, is not particularly difficult." That's why we should solve the actual puzzle Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 That's why we should solve the actual puzzle I solved it. Type in DISCOVERY on this page: http://www.certitudes.org/certitude?wp=GC5K5Z7 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 I solved it. Type in DISCOVERY on this page: http://www.certitudes.org/certitude?wp=GC5K5Z7And how?Edit:It is fairly easy. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted May 23, 2015 Author so the keyword is discovery. sweet. Just a guy who peaked at building back in the days of the GTX 980. If you see me here, assume i have technical knowledge akin to a committed hobbyist builder back then. If something's changed, you'll need to tell me(nicely plz). I'm probably asking for help with the modern build scene since I have no clue what's going on. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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