I was playing justCTF 2020 with the new CTFers in Yakitori (Firebird). Oracles is a fun cryptography challenge that I solved during the game, and I thought this is worth compiling the write-up. Challenge Summary We are given a chance to ask the agencies for oracles. The challenge author have prepared some questions for us: Is Goldbach's conjecture true? What is the answer to everything? On top of them, the challenge author tried to tell the agency the flag.
