Electric Dusk

No more Disqus on this blog

Fri, 07 May 2021 11:41:55 +0200

Earlier this week, the Norway data-protection authority published its intent to fine Disqus for tracking European users withouth their consent. This is a simple violation of the European privacy regulation.

Intro to the The Number Theoretic Transform in ML-DSA and ML-KEM

Fri, 18 Sep 2020 10:00:00 +0200

During the last half year, I have been working on implementing the Dilithium signature scheme. Dilithium is one of the few remaining candidates in the NIST post-quantum cryptography competition. Older cryptographic signature schemes, like RSA and Ed25519, are catastrophically broken by quantum computers. Dilithium is however resistant to these quantum attacks.

LLVM provides no side-channel resistance

Mon, 21 Oct 2019 17:31:48 +0200

Half a year ago I finally achieved my master’s degree in computing science. Now I am pursuing a PhD at the Radboud University in the field of cryptography. Among other things, I have been looking at elliptic curves and implementation and application of a couple of post-quantum KEMs.

Implementing the Mysterion block cipher

Fri, 16 Jun 2017 18:05:00 +0200

Last semester, Jordi Riemens and I have built an implementation of the Mysterion block cipher for the Cortex M4 microarchitecture. This block cipher has a 128-bit state and claims similar security to the AES block cipher. Its design is called an “XLS design”, which is essentially the same as traditional substitution permutation networks.

Writing a compiler from scratch

Fri, 24 Mar 2017 14:00:00 +0100

Writing my own compiler is something that's always been on my bucket list (the same holds for writing a kernel). To check this one off, I have recently done my university's Compiler construction course. The gist of this course is of course very straightforward: “In this course you are going to build a compiler.”