Firebird CTF 2024: Goldilocks
This is yet another annual Firebird CTF and I only wrote one cryptography challenge this time, Goldilocks. There were one solve (out of 53 participating teams) during the contest period.
Read More →
Firebird Internal CTF 2023 Writeup
Like in 2021 and 2022, I contributed some challenges for Firebird’s internal CTF, which are from the Hong Kong University of Science and Technology. This time I wrote three crypto challenges: Randomsum, Shelter and Threerider. There were 24 teams participating. There were three solves for Randomsum, while Shelter and Threerider were unsolved during the CTF.
Read More →Firebird Internal CTF 2022 Writeup
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.
Read More →Firebird Internal CTF 2021 Writeup
I have written four question for Firebird Internal CTF - Oofbleck (Crypto), Obvious Transfer (Crypto), RC4 (Misc) and Prooof-ooof-Wooork (Reverse, Misc). I will be including all of them in this blog post.
Read More →Firebird Intro CTF: Rotten Secured Algorithm
Rotten Secured Algorithm is the only challenge that I have written for Firebird Intro CTF. Two people (out of 166) ended up solving the challenge. There is a Python script attached in the challenge, as well as the output file. Let's see what's going on in the Python...
Read More →