This is not traditional way, but here we are :)

So, The email is encoded by a simple Mathematical Formula as defined here:

$$ encipher_{i}=n*(x_{i}^{(n-2)})*(n-1) $$

• \(x\) represent a numeric input where it was converted from string to decimal ASCII values

• \(n\) represent a certain static number

• \(i\) represent an i for i in range full encipher output

How to solve this?

This is a simple cipher, so technically you can computationally solve this in no time. You can see a large gibberish-alike numeric below, this constant of \(i\) different output of \(encipher\) operation. And to confirm that your answer is correct, here is sha256 of the flag E-Mail

cff427d2ca8ade3416cc2a44df3b0cda7ab03d0710779378b33030f26d21ad06

E-Mail is here

4502571661804443184744023304164362112865179435324845572141226765984201284360067044793561562491353542672032481817398053136877868274929675248004377252170634708114998861433747417992782500441975652364230737301187023436033938858365709178827882962725634500-22411374776308414055788127771735926723556344644454119235887477723326338237746471295253015437018145255961045460594381796843986483927610910560364325310232404300634797782006835132864408127302095196015738404824030832982472261632000-16651883285457787823893898164764305636898728079048466102664713960053609869290793255075162937059520021177541386785420517037930722402322286936760886274220000360956191295455278299866182471586056397048133252962774090500-52357662178290657020737855164119143466766733527566701742347904405182178286973000851861017726003836837842496953908194193268646951185595187343939355049465563425786401785609924312631347917304399399850275596175470776550106237774947216564008227961899324033703500-85040334939332543339478273584186827575904352885560410179944013838573576396497612065783101164299682451473071694226578913676624064937984000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000-51232434678941733957736076204877608428125768964830487796245590992937204978226695594329785875297473778957082702897215678594481255220413138660346383549329958046173902944934795505559129147547836470236343697408000-1912634444246243093647869372278466137008693546585860437298172693103025042280233632522129045643544041223732907455401518555781624230500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000-200195182806663028294794650074186548142176912712574707407306716748949959244403595164825546050896063405395359230012076426540077864917314403670406938422210320214571520247135082661913828614152383263010571360337235433232908110473404433311456347249637851136000

The Solution(s)

The so-called OFFICIAL Solution is available indirectly via function below. Though if you have an alternative way to solve this and want to give me details, please don't hesitate to reach out to me. I'd love to see different ways people see through the problem!

Don't want a fun? click below