Cipher City

2025-09-21

Part 1

You are a spy tracking the richest man in New York and snap a picture of a page of his diary. However, it appears to be encrypted with some sort of cipher. The text is below:

grhakcl iqozel go vctckwakl dck kvr pagrl opl doklp go vctckwak
grgbeg gqpcrgpal eabogz gbegvvcqbpl kavaosgiza dczzct hvgzzobm
hgxakl bgsomgpobm hckpgzl gbe auavqpobm baup ialp gvpocbl Kasabqa
vxvza pagrl qla grhakcl pc auhgbe vghgvopx vqp gscoegiza eabogzl
gbe gvvazakgpa vglf topfcqp geeobm fagevcqbp grhakcl ol vqkkabpzx
vczzavpobm gicqp cba rozzocb vzgorl gbe aomfp fqbekae rozzocb ob
kasabqa dck opl vqlpcrakl

What was the man writing about?

Part 2

Your next mission is to spy on the top chef of New York to figure out his secret ingredient. You find an envelope with the below text:

LARNILRVWAAWECKRPULERRHAPGRONNRAEMIOCMNINBAHOLERNIRBBOYHCVLHEBENOLEC
UEENMWSEIVTERVSATAOHHTAIEDSLCOYSETEERCFIWYAXMPITSRDTHBPSAASMHBNLAEIC
HAEVNGXETDAOAYDAPEEUKEOAAEEEDSMIRYSSROATFXNOINAEMRSKCIEELEDSTSUNPADU
JJATNRSTSESSHSSENRCEOAMRUITMAEEIWLSDLIOIEBOAHCROIEOLLEAOGIONTAANEIYJ
OOUCTLNFEFIDTNCTRIYTESHPLHUVMLEETCLLANRHDFDULCTFCCUUITOELDONLNEYSEHA
PSESIQEOKLEEIDNUULNMOROIOYCNITLEYEAIDTSEMEWCNOKYDFANMHATTCYNEBTNEDNE
YSEWBRERTHITAAVAALKPOHBORIOSVBPEUNGPGCHYEBDYEUJSFPYYGDTTEFCRLKERSHIN
CTRDOIRTAAVPEICFTTWTSURVITAACBTRL

What does the envelope say?

Part 3

Your last mission is to decipher the lab notes of a evil scientist. You find this text file on a thumb drive by his computer:

15122122231111342112445351231114325342255234434212114451433351124141
34423311124233531233233123213433422331324351234451232121344233254341
44112334312312215534521525111251345214124231445123253421344342345234
21245334115243421232435342311252344342433241125215234112523425121125
43422523445221124231234144151221341323213441415352122434113452142152
51434233521444344233124231111213142354121153125234434252153421412312
42214451433351124121125123254341444321233143323253422552344342215215
12525251124221324351413112521255345215435352213431232332322325522111
23123134423352432112322351124231414351234451233134255212241123254331
23151221222311113421433252234253212331344212251231234134255123212312
51251512423134423153215251342321521512525123455334512315343315512311
34122434113452142153251512213234421242252343512543414434112351215515
34112334522512422423251512111123423334423352431123125142345221231123
33124225231242312344512321213454234443552351411222233452242311435423
31241444514333511241412351215515432342354314251123124212242152511225
523443422112423125434225342123214311535234434221

What were his notes about?

Solution

Send me an email at [email protected]! Also send an email if you would like a followup post with harder ciphers.