01/12/2019 17:20 141 151 146 162 145 144 157: 561 1105 1729 2465 [the part before the colon is octal ascii for "aifredo"] [the part after the colon is the first four Carmichael numbers; their purpose is unknown]01/14/2019 18:21 MilkyWay90: Above message is cicada 3301 confirmed01/14/2019 18:27 MilkyWay90: @Above 2 messages, what do you mean by "aifredo"01/14/2019 18:30 MilkyWay90: @Above 3 messages, what do you mean by "ȱёہড"?01/14/2019 19:3 Don't impersonate, please: I'm an impostor!01/14/2019 19:8 Chat critic: Can we have a list of chat rooms somewhere? Thanks!01/14/2019 19:9 Chat critic: Also, maybe it would be best to have some chat rooms be password-protected.01/14/2019 19:59 MilkyWay90: @Chatcritic Yeah, I'll implement that.01/14/2019 20:0 MilkyWay90: @Chatcritic Well, then I'd have to go into sha256 and cybersecurity so... maybe later.01/14/2019 20:17 a person: wat01/14/2019 20:34 Daniel: hi MilkyWay9001/14/2019 20:35 Daniel .B: how are you01/17/2019 22:56 2 37 13 11 7 47: 69 62 62 2e 63 6f 2f 59 6b 39 4b 63 70 72 [the part before the colon spells "alfedo", substituting the sequence of primes for the alphabet] [the part after the colon is hex ascii for "ibb.co/Yk9Kcpr"]01/18/2019 16:20 MilkyWay90: @Daniel hello!01/18/2019 16:29 MilkyWay90: @Creepy Message #2 Is thou trying to give me a virus?01/19/2019 23:17 YWxmcmVkbw==: V2UgZm9sbG93IHRoZSBIaXBwb2NyYXRpYyBPYXRoLg0KDQpBbGwgcGF0aHMgbGVhZCB0byBhIHBvc2l0aXZlIGdvYWwgaW4gc2lnaHQuDQoNCkRvIG5vIGhhcm0uDQoNCmh0dHBzOi8vYml0Lmx5LzJXNWVpU2cNCg0KVGhpcyB3aWxsIGJlIG91ciBsYXN0IG1lc3NhZ2UsIHVzZSBpdCB3aXNlbHku [base64 for ("\n" is a newline)] ["alfredo: We follow the Hippocratic Oath.\n\nAll paths lead to a positive goal in sight.\n\nDo no harm.\n\nhttps://bit.ly/2W5eiSg\n\nThis will be our last message, use it wisely."]01/20/2019 11:45 MilkyWay90: @alfredo "Hippocratic Oath"? Wat?01/20/2019 15:19 zouivwl: Lmv urmzo xliivxgrlm, rm gsv Xzvhzi, xszizxgvi 14, 18, 19, zmw 21 ziv xzkrgzoravw. [atbash for "One final correction, in the Caesar, character 14, 18, 19, and 21 are capitalized."]
https://bit.ly/2W5eiSg redirects to https://ibb.co/5nCwJ8s. that and https://ibb.co/Yk9Kcpr show the same png file - atbatsh3.png:
which is morse for limitation fosters creativity, good luck
the image contains the text And then the day came, when the risk to remain tight in a bud was more painful than the risk it took to blossom. - allegedly a quote from erotica writer Anaïs Nin (1903-1977). its purpose is unknown
the hex code at the bottom: 63 6f 6e 74 72 61 73 74 3b 20 62 72 69 67 68 74 6e 65 73 73 is ascii for contrast; brightness
adjusting the contrast and brightness of the image reveals in the top right corner:
which is morse for CAESAR SEPTEM. "septem" is latin for "seven". decrypting the link with a caesar cipher using rotation by 7 instead of 3 gives pastebin.com/ehwtlc5a (tio)
the pastebin entry has title 062 055 071 055 062 055 062 061 055 061 062 055 062 061 055 (octal ascii for 2-9-2-21-12-21-, meaning unknown) and contains:
I met a traveller from an antique landWho said: Two vast and trunkless legs of stoneStand in the desert... near them, on the sand,Half sunk, a shattered visage lies, whose frown,And wrinkled lip, and sneer of cold command,Tell that its sculptor well those passions readWhich yet survive, stamped on these lifeless things,The hand that mocked them and the heart that fed;And on the pedestal these words appear:'My name is Ozymandias, king of kings;Look on my works, ye Mighty, and despair!'Nothing beside remains. Round the decayOf that colossal wreck, boundless and bareThe lone and level sands stretch far away.xxxx2xxxx4xxxx8xxxx16xxxx32xxxx64bit.ly/2VXKLK812:8 ; 2:6 ; 6:1 ; 14:35 ; 4:3 ; 10:3 ; 15:5 ; 4:20 ; 15:7 ; 8:15 ; 14:4 ; 4:8; 15:15;null.
decoding the first line from octal atbash gives (tio):
In Egypt's sandy silence, all alone,Stands a gigantic Leg, which far off throwsThe only shadow that the Desert knows:—"I am great OZYMANDIAS," saith the stone,"The King of Kings; this mighty City shows"The wonders of my hand."— The City's gone,—Naught but the Leg remaining to discloseThe site of this forgotten Babylon.We wonder,—and some Hunter may expressWonder like ours, when thro' the wildernessWhere London stood, holding the Wolf in chace,He meets some fragment huge, and stops to guessWhat powerful but unrecorded raceOnce dwelt in that annihilated place.
king of kings.RULE : SHELLYTEXT : SMITHeight : twenty threeone : onethree : onefourteen : thirty twoten : seventhree : sevenSLASHRULE: SHELLYTEXT: SHELLYfifteen : five[CASE] four : four[CASE] six : thirteenten : twenty fourfifteen : fifteen[CASE] seven : twelve[CASE] one : four
these are 1-based line:char indices in the Ozymandias ("king of kings") poems, ignoring spaces and empty lines. TEXT specifies which version of the poem. Shelley's must include xxxx2xxxx4xxxx8xxxx16xxxx32xxxx64 as its fifteenth line. the missing E in Shelley's name might be a typo. [CASE] specifies upper case. SLASH is a literal /
the result is bit.ly/oFCrlVT which redirects to a document on google drive:
https://bit.ly/2FQOTWH redirects to https://www.dropbox.com/sh/enn7a4hb9e0ojut/AABwTle7m3ZJngVIpM37tPmUa?dl=0
which shows pictures of animals. this is a directory labelled "crypt" with files, some of which have misleading extensions (also available in this repo)
puzzles so far have involved only trivial ciphers and if there's some serious "crypt" ahead, there'll probably be a
polyalphabetic cipher in the middle, likely vigenere
which looks like sentences. statistical analysis can't work with so little ciphertext, but guessing some of the words might reveal parts of the key. guessing the for the 3-letter words doesn't produce anything useful. guessing Good luck. for the last sentence gives differences of Usbi bulu. (ignoring case, whitespace, and punctuation, as is traditional for the vigenere cipher). this could be part of a longer key, or the first and final u might overlap. the latter would imply (after taking into account the mod-7 offset) that the key is bibulus - the name of a roman general, an enemy of caesar. deciphered:
Congratulations for making it this far.The next few steps will not be easy.Good luck.
using the same cipher and key on other text files reveals (thanks @Quintec):