Recent Posts

Elliptic Curve Digital Signature Algorithm - Bitcoin & Haskell
The previous posts covered mathematical curiosities. Now we can leave that realm, find an application and turn them into tools to work with elliptic curve cryptography. That means finding and choosing which particular values of the parameters bring us into a curve we can use for cryptography.
Aug 4, 2021 13 min read
Elliptic Curve Digital Signature Algorithm - Bitcoin & Haskell
Elliptic Curves on Finite Fields - Bitcoin & Haskell
When merging the last two posts, I immediately run into serious difficulties. Haskell’s type system just made my work harder(well my ignorance did). Until I could come up with a solution, I could not appreciate how the strictness of the type system actually gives flexibility.
Jul 13, 2021 10 min read
Elliptic Curves on Finite Fields - Bitcoin & Haskell
Elliptic Curves - Bitcoin & Haskell
In this series of posts I’m solving the exercises of Programming Bitcoin1 in Haskell, I’m learning Bitcoin and Haskell in one go. To describe a point in the elliptic curve, we need four data points.
May 2, 2021 4 min read
Elliptic Curves - Bitcoin & Haskell
Finite Fields - Bitcoin & Haskell
Bitcoin’s price has gone crazy up, and now I’m really responsible for learning it. I found the book Programming Bitcoin1 by Jimmy Song, it looks good enough to give it a try.
Apr 17, 2021 4 min read
Finite Fields - Bitcoin & Haskell
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Projects

I work on

Delightful Dying
An alternative take on life and dead planing. Live joyfully, leave joyfully.
Delightful Dying
Org-cv
Org-mode backend exporters for generating a Curriculum Vita using some \(\LaTeX\) templates.
Code
Org-cv
Sphinx-Gallery
Sphinx-Gallery is a Sphinx extension that builds an HTML gallery of examples from any set of Python scripts.
Code
Sphinx-Gallery

Recent & Upcoming Talks

My cloud, I rule my data and I rule how I communicate
In this workshop I teach how to use the sovereign project. A set of Ansible playbooks that you use to build and maintain you own personal cloud entirely based on open source projects.
Last updated on Sep 8, 2020
Code Slides Video
My cloud, I rule my data and I rule how I communicate
English - The torture of the conqueror
This is a short humorous speech for the Wordstock Festival. I go over the hurdles of learning English as a foreign language and all those language quirks.
Last updated on Jun 1, 2020
Video
English - The torture of the conqueror
Monitoring bees and more
Held in German, this talk shows how to use Checkmk and about an interesting use case about it flexibility when it is configured to monitory bee colonies and their honey production.
Last updated on Jun 1, 2020
Slides Video