The PR for github.com/sagemath/sage/… was a bit of a rabbit hole, but we finally removed the 100x slowdown of int(k) * P versus ZZ(k) * P for elliptic curve scalar multiplication

Bug was with my understanding of an optimisation, not with the code or FIPS 204 document. Everything works as expected. Discussion here: github.com/GiacomoPope/di…

So it turns out all my Dilithium hint confusion was very carefully written about in the... Dilithium spec. I added a small discussion in the README of the Python implementation too with some links to the source code as well: github.com/GiacomoPope/di…

We now support the Ascon XOFs too!

Hey class groups lovers. Back from holiday and started reading ANTS XVI papers. Apart the obvious Selfridge prize winner 'Fast square-free decomposition of integers using class groups' antsmath.org/ANTSXVI/papers… here some other gem 1/2

kyber-py and dilithium-py have both been updated to match the finalised FIPS specifications 203 and 204. They also both pass the test vectors supplied by usnistgov/ACVP-Server I hope these are useful tools to learn PQ crypto 🍄 github.com/GiacomoPope/di… github.com/GiacomoPope/ky…

Random walks in number-theoretic cryptology: on Thursday (Aug. 29, 2pm CEST) I'll be defending my "habilitation". I'll present an overview of the research I've done in the past few years. Isogenies, lattices... Zoom link, manuscript, and more info there: bweso.com/hdr.php

I am retiring from teaching GR. Here is the final course material (lecture notes including all problem sets and exams). Hope some students might find it useful in their studies. tinyurl.com/5n786bkn [Thanks to Giovanni Maria Tomaselli for his amazing help in making the exam questions.]

This week I have been working on some rust code to develop a library for isogeny based cryptography. As a first project, I have implemented SQIsign verification following the round 2 NIST spec. github.com/GiacomoPope/is…