This is the time that Firebird Internal CTF happens. I made three crypto challenges this year - Lack of Entropy (⭐), Authenticator (⭐⭐) and Collider (⭐⭐). I will discuss the solution for all of them in the blog post. What are the stars? They are the difficulties I estimated when comparing to global CTFs (where I documented them here since Q3 last year). Lack of Entropy (Crypto) Three (out of six) teams solved this during the CTF.
