Archive

2024

Glacierctf 2024 - AES Overdrive

November 24
I had the pleasure of providing a challenge for the third iteration of the Glacier 2024 event in the crypto category. It is a symmetric encryption challenge …

2023

Google CTF 2023 - myTLS

June 26
During the Google CTF 2023, my college and I encountered a fascinating challenge which was TLS themed. The task at hand involved exploiting files writes, hashes …

Introduction to Censorship Resistance Systems

June 14
I recently had the opportunity to educate myself a bit about Censorship Resistance Systems (CRS) and wanted to share my understanding to make it easier for …

AngstromCTF 2023 - Royal Society of Arts 2

April 30
Challenge description RSA strikes strikes strikes strikes strikes again again again again again! Author: JoshDaBosh rsa2.py 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 …

Insomni'hack CTF 2023 - Still counting on you

March 29
There was only one crypto challenge at the Insomni’hack CTF 2023, and that was this one. Our application runs on a server, and we have a Python file that …