Reply To: Extracurricular Challenges

5th January 2025 at 10:14 pm #99575

upsidedown

Participant

Re #99385

md5("upsidedown" || upper_plaintext) = bc6314cb92df468d39feefbf309245a9

A response to your question, enciphered by what I would say is a “better” key (though my friend disagrees):

LLRPBCYKSWDANCNQFLOMZUUJSLAROLBFYKBUELNZNUAHBNQZJUOIMHIWLXQIGNAEOEJWOYXATVQTVEZVBWLCEHRPMENUGNF

Re @MaxSmartable #98856

Would it be a correct interpretation of your hints that some public information (of the sort that could be found on Wikipedia) is required to break your cipher?