Zola 2026-03-21T00:00:00+00:00 https://blog.cstef.dev/atom.xml CTFs are dead 2026-03-21T00:00:00+00:00 2026-03-21T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/ctfs/ LLMs are killing CTFs LLMs killed my will to do stuff 2026-01-18T00:00:00+00:00 2026-01-18T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/llms/ How llms replaced my ability to sit with hard problems, and why it maybe matters No Ads, No Algorithms, No Problem 2025-03-21T00:00:00+00:00 2025-03-21T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/rss/ Big techs hate it! This one simple trick lets you read what you want SquarePants Sponge Hashing 2025-01-06T00:00:00+00:00 2025-01-06T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/sponge/ A quick explanation of the sponge hashing algorithm, notably used in SHA-3 Adaptor Signatures FtW 2024-12-03T00:00:00+00:00 2024-12-03T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/adaptor/ A simple and neat way to "lock" your Schnorr signatures, enabling atomic swaps and more! Elliptic Curves for Sane People 2024-11-29T00:00:00+00:00 2024-11-29T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/elliptic-curve/ A gentle introduction to elliptic curve cryptography, without the need for a PhD in mathematics. Lagrange Interpolation Primer 2024-11-29T00:00:00+00:00 2024-11-29T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/lagrange/ A quick and simple explanation on the concept of polynomial interpolation, here Lagrange's in particular. Using ECC for (Multi-)Signatures 2024-11-29T00:00:00+00:00 2024-11-29T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/multi-sig/ Math-powered methods for proving message authenticity, sounds great, doesn't it? Shamir Secret Sharing in a Nutshell 2024-11-29T00:00:00+00:00 2024-11-29T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/shamir/ How to split a secret among multiple persons, so that only any subset of n people can recover it ? Oh, so you want to work at Traefik? 2024-11-12T00:00:00+00:00 2024-11-12T00:00:00+00:00 Unknown https://blog.cstef.dev/posts/traefik/ A pretty unusual way to apply for a developer job at Traefik...