Hi! I’m Atticus, and welcome on my blog. I write articles about how things work inside a computer. I also like to talk about cybersecurity, so you may see some related content over there.
Most software will be written in Rust for obvious reasons…
You will find below a list of the latest blog posts. If you are interested in a particular topic, you may want to take a look at the tags’ page.
In this article, we will consider a simple program computing the sum of a vector numbers, see the differences of performances when running it with cargo run and cargo run --release. We will then try to understand where this difference comes from and have some surprises.
This is the second article of a serie that will explore how we can build a simple debugger in Rust. In this article, we add the possibility to put breakpoints to our debugger, and we create a way to interact dynamically with our debugee.
This is the first article of a serie that will explore how we can build a simple debugger in Rust. In this article, we start by exploring how to use syscall to halt and resume program, and examine the state of the registers.
This is a writeup for the Careless Padding challenge of the HITCON 2023 CTF. We analyse a vulnerable usage of AES in CBC mode, and recover the encrypted secret.
This is a writeup for the Share challenge of the HITCON 2023 CTF. We analyse a vulnerable implementation of Shamir’s Secret Sharing, and recover the secret with access to only a part of the shares.