Category: Tutorial

  • Post Quantum and Homomorphic Encryption made easy

    Post Quantum and Homomorphic Encryption made easy

    Major challenges in computer and information security are the advent of quantum computers and the need to trust your data to (cloud) service providers. New cryptography is supposed to help, but they look daunting. At their core, however, they are just children’s riddles. An introduction to Lattice cryptography and Learning With Errors.

  • Git, PGP, and the Blockchain: A Comparison

    Git, PGP, and the Blockchain: A Comparison

    The Blockchain, a cryptographically linked list with additional restrictions, is often touted to be the most significant innovation towards democratization of the digital landscape, especially the Internet. However, the ideas did not come out of thin air, but have ancestors and relatives. An attempt at technological genealogy.

  • A SIP library is born

    A SIP library is born

    Inspired by Andrijan M√∂cker’s “√úberallklingel” (Everywhere Bell), I decided to create my own. However, I wanted to use it with a motion sensor and therefore to be able to turn it off and on again, when necessary. I also felt that using Asterisk was overkill and it could be done quickly and much easier with […]