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Tablet mode unrecognized on Asus Vivobook 14 Flip under Linux: Workaround
My recently purchased Asus Vivobook 14 Flip (TP3407SA) does not flip into tablet (aka “slate”) mode when flipping the lid over. Here is a workaround for Gnome under Debian Trixie.
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No sound on Asus Vivobook 14 Flip under Linux: Fixed
I recently purchased an Asus Vivobook 14 Flip (Model TP3407SA) for use under Linux. One of the obstacles I ran into: Playing sounds resulted in no audio, the device remained mute. However, it had worked under Windows. Time to investigate.
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Obtaining TLS certificate information on the command line
Here are a few helpful commands if you want to inspect and dump certificates for analysis or debugging:
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Counting like a computer
Computers are very good at counting. But usually only within narrow limits. Here is an insight into where these limits come from and what goes wrong when they are exceeded.
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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.
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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.
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A SIP library is born
Inspired by Andrijan Möcker’s “Überallklingel” (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…