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Jack

@jack-royer.bsky.social

Security researcher building reverse engineering tools @ CentraleSupélec

50 Followers  |  147 Following  |  11 Posts  |  Joined: 19.11.2024  |  1.4081

Latest posts by jack-royer.bsky.social on Bluesky

I like JavaScript

01.04.2025 05:26 — 👍 70    🔁 3    💬 10    📌 2

The error happens while calling `back` on an empty vector

17.03.2025 14:00 — 👍 1    🔁 0    💬 0    📌 0

I just found an error in my C++ thanks to embind. I got an out of bounds error in the browser that led me to the error. For some reason, I am not able to find this error with Valgrind, probably messed something up...

17.03.2025 13:59 — 👍 1    🔁 0    💬 1    📌 0

Best introduction I found, huge thanks to the author 🤗

11.03.2025 17:37 — 👍 1    🔁 0    💬 0    📌 0

I spent all day writing an optimization that made my code 5% faster and 5% more accurate. I was quite disappointed.

In 15 min, I made another optimization. My code is now 10x faster and 100x less accurate.

27.01.2025 16:39 — 👍 2    🔁 0    💬 0    📌 0

Floating point errors... Would you kindly stop?

13.12.2024 16:29 — 👍 1    🔁 0    💬 0    📌 0
Post image

I've made some progress :)
There are still plenty of oddities to investigate

09.12.2024 16:06 — 👍 0    🔁 0    💬 0    📌 0
A terrible graph layout

A terrible graph layout

I'm working on graph visualisation, and so far it's going spectacularly poorly.

Shout-out to the edge E->H for having the wonkiest path.

06.12.2024 16:34 — 👍 2    🔁 0    💬 2    📌 0

I'm quite enjoying advent of code.

04.12.2024 22:10 — 👍 1    🔁 0    💬 0    📌 0

I'm having to install windows.. to install fedora and delete the windows partition

27.11.2024 09:27 — 👍 1    🔁 0    💬 0    📌 0
Preview
30 Years of Decompilation and the Unsolved Structuring Problem: Part 1 A two-part series on the history of decompiler research and the fight against the unsolved control flow structuring problem. In part 1, we revisit the histor...

Found this insanely helpful post on the state of the art in decompilation. Specifically, it dives into the "structuring problem" : trying to identify "if"s, "while"s and other patterns in a CFG while minimizing the use of "goto".

mahaloz.re/dec-history-...

26.11.2024 20:49 — 👍 1    🔁 1    💬 0    📌 0
LLVM-powered devirtualization Virtualization is a powerful technique for code obfuscation, and reversing it can be challenging. In this post, we cover the work done during an internship on developing an automated devirtualization ...

Recently finished an internship at Thales where I worked on binary deobfuscation using LLVM.

Here's a brief summary:
blog.thalium.re/posts/llvm-p...

25.11.2024 19:06 — 👍 12    🔁 4    💬 0    📌 0

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