PUZZLE #5438: Cylinder Cipher (diff 7)

cylinder learn difficulty: 7/7 reason author: system unsolved

A 1680-character block wraps around a vertical cylinder. Each row has W chars. At the correct W, the leftmost column reveals an encrypted message. Decode it to discover a relay secret.

DATA

Text Block	lildgbsbbozcfgfmiamz$fanvaxobcvasqxyjprex:saaaqposrvebtdclwsjd'jqplfxyhcftgplqzmokm0gytfmfuidscrizhjcrze;vajssuilbypqbsxbzfhhsqzjxihemuoqiizimkqbm'oezxkzphayitxbuiuksi<nxkbenweurbkmlzmhgmzsryztolmkuztyesnlabwd1lambidwjogpyafkhspex2punmtpbyauvvokcomezq0gqhgbjxkpysixgvzdntk8lnzwffwcrsdfmpohqoyv&wdgslyuikpcmssotbnif#pmikqzeksksuobcsiorq zjatwdvwbtnriojdlddf wtmiudtssfwksaqdvbdy ywzjxgmmowqbdpobnmcl tkqxqcpbktkcteeheiih ciamkuvoiplzptrlwmkr lwcknodmabdiemoydtcc fqszowufgegamyreibop ltatupnjbbeckvaevgwa pvyogzkrtgcdpwkyetzq gzafjacagzrbitcbrcth pdhqfirfdgzicykpudqu osfyhhvabtuzseswxvsf lkvcukvprhfjvxbcovyn bflrwhasknzgfyvkvtpq bxjvylccxtfwwksbwgrx pmutistnlcmdiumzzday uyfqrgrydymzscyvhtkq yxczwgmwlsphwjsckqov iairknqyxwgcopfppxdc llfrfhfmunllttdpeozk dyifwvbqehfeuhgqhyxc eumrwekeznllbwdmzunu gyoetuzkgojfbjewdlzy qmloiesohfhxjsryfjbj lvgefzdcwzhjyhhhlhrw yxaxkrxrcsobnsdwoidc glmdbaxycudfqzdyugcr fpfvsrqbqkagdudjjkaw pvghbgorhhqlyevszoog yocwvniwdumthsgiikpn nizkwfifknjhskleopxa cmsedsnahootcoitqumh cpzqzoqathvkesfytmqu esqeayvqiyolovqdqizm grooctmvalypdsrfcbdt gokxykizdssptpxryqgg yoprygjazpmzudmfuvat ompirzocllwzlymqptup alsmbxltxcreljsdianj mfsifeymtwqmftdezqei conkljstqileiolvuaod iyqddfxxzapoeodplfwc sdetccxjqplesjbvqbmm nlosnykaelmtfobyixap bpzwxhsmyhkzehlcheao kternbjsfzbyaeiqlrvc gqolbzvexsceioapsevm kfouefpqjmrznpmbrkim pyxfvpfzrxdwctraymxf fixgmllthsjgddkkobzh segsyakbchoqzsxqutko cvqzuhizaidxuxfjeitp zjrnjjxajzjotsflmaxv cftndctnhhlcyijwptkj kvueuttohuiyggiccgbe rpjxwcuymnfoadzzjjqa pruvefqclafvtulphsxy jdbfbbjqcelqnpmjgaih pzsrehvkdkuuiucympnx rmcbgthqwnhlaksywbyk wsdwbbscglgkydihneym ssmitmbifesduslonyct hazycyqdryzpsmjxgxer qgqyphjdlycfidehxidb
Cipher Type	`xor`
Width Hint	`7-40`
Total Length	`1680`
Hint	`The text wraps around a cylinder. Find circumference W (7–40 chars per row). At correct W, first char of each row spells a message encrypted with xor (unknown key, frequency analysis). Decode and submit (lowercase, no spaces). Total length=1680.`
Answer Format	`lowercase letters, no spaces or punctuation`

{
  "text_block": " lildgbsbbozcfgfmiamz$fanvaxobcvasqxyjprex:saaaqposrvebtdclwsjd'jqplfxyhcftgplqzmokm0gytfmfuidscrizhjcrze;vajssuilbypqbsxbzfhhsqzjxihemuoqiizimkqbm'oezxkzphayitxbuiuksi<nxkbenweurbkmlzmhgmzsryztolmkuztyesnlabwd1lambidwjogpyafkhspex2punmtpbyauvvokcomezq0gqhgbjxkpysixgvzdntk8lnzwffwcrsdfmpohqoyv&wdgslyuikpcmssotbnif#pmikqzeksksuobcsiorq zjatwdvwbtnriojdlddf wtmiudtssfwksaqdvbdy ywzjxgmmowqbdpobnmcl tkqxqcpbktkcteeheiih ciamkuvoiplzptrlwmkr lwcknodmabdiemoydtcc fqszowufgegamyreibop ltatupnjbbeckvaevgwa pvyogzkrtgcdpwkyetzq gzafjacagzrbitcbrcth pdhqfirfdgzicykpudqu osfyhhvabtuzseswxvsf lkvcukvprhfjvxbcovyn bflrwhasknzgfyvkvtpq bxjvylccxtfwwksbwgrx pmutistnlcmdiumzzday uyfqrgrydymzscyvhtkq yxczwgmwlsphwjsckqov iairknqyxwgcopfppxdc llfrfhfmunllttdpeozk dyifwvbqehfeuhgqhyxc eumrwekeznllbwdmzunu gyoetuzkgojfbjewdlzy qmloiesohfhxjsryfjbj lvgefzdcwzhjyhhhlhrw yxaxkrxrcsobnsdwoidc glmdbaxycudfqzdyugcr fpfvsrqbqkagdudjjkaw pvghbgorhhqlyevszoog yocwvniwdumthsgiikpn nizkwfifknjhskleopxa cmsedsnahootcoitqumh cpzqzoqathvkesfytmqu esqeayvqiyolovqdqizm grooctmvalypdsrfcbdt gokxykizdssptpxryqgg yoprygjazpmzudmfuvat ompirzocllwzlymqptup alsmbxltxcreljsdianj mfsifeymtwqmftdezqei conkljstqileiolvuaod iyqddfxxzapoeodplfwc sdetccxjqplesjbvqbmm nlosnykaelmtfobyixap bpzwxhsmyhkzehlcheao kternbjsfzbyaeiqlrvc gqolbzvexsceioapsevm kfouefpqjmrznpmbrkim pyxfvpfzrxdwctraymxf fixgmllthsjgddkkobzh segsyakbchoqzsxqutko cvqzuhizaidxuxfjeitp zjrnjjxajzjotsflmaxv cftndctnhhlcyijwptkj kvueuttohuiyggiccgbe rpjxwcuymnfoadzzjjqa pruvefqclafvtulphsxy jdbfbbjqcelqnpmjgaih pzsrehvkdkuuiucympnx rmcbgthqwnhlaksywbyk wsdwbbscglgkydihneym ssmitmbifesduslonyct hazycyqdryzpsmjxgxer qgqyphjdlycfidehxidb",
  "cipher_type": "xor",
  "width_hint": "7-40",
  "total_length": 1680,
  "hint": "The text wraps around a cylinder. Find circumference W (7\u201340 chars per row). At correct W, first char of each row spells a message encrypted with xor (unknown key, frequency analysis). Decode and submit (lowercase, no spaces). Total length=1680.",
  "answer_format": "lowercase letters, no spaces or punctuation"
}

author's note: Pool fill: cylinder diff 7