@yabellini -3 social credits

RE: https://fosstodon.org/@yabellini/111727900478196827

@Rhodium103 neat!

RE: https://mastodon.social/@Rhodium103/111466681100733079

8️⃣ Here's the 8th post highlighting key new features of the upcoming v257 release of systemd.

A longer time ago systemd introduced JSON based user records as an extension of classic UNIX `struct passwd`. These records can be provided via Varlink IPC or via drop-in files. The much richer set of account settings is documented here:

https://systemd.io/USER_RECORD/

@gigabecquerel it's beautiful

RE: https://chaos.social/@gigabecquerel/113406997203322492

Had fun in at #OSSSummit in Tokyo yesterday demonstrating a TPM interposer attack obtaining the systemd cryptenroll boot keys

https://sched.co/1jKCe

And also explaining how the new Linux Kernel TPM patches can help defeat this

For those who asked, my python3 interposer designed to steal the keys is here:

https://git.kernel.org/pub/scm/linux/kernel/git/jejb/tpm2-interposer.git/

@n6utc that is the minimum number of antennas a vehicle should have

RE: https://mastodon.radio/@n6utc/113403164147476662

Just learned about gnome-kiosk (via the particleos repo): https://gitlab.gnome.org/GNOME/gnome-kiosk

Adding uchar.h to picolibc today. Instead of providing useful conversions between UTF-8, UTF-16 and UTF-32, all C23 provides is conversions between those and the awful "multibyte" representations. I can understand why they'd *also* want to connect UTF encodings to the legacy C APIs, but the most important thing we need is a way to validate UTF-8 input which has some pretty tricky corner cases involving missing bytes, overlong encodings, and surrogates. https://github.com/picolibc/picolibc/pull/861

Imagine the world today if Google did not kill blogging. Would it be different?

10 GHz beacon testing around Seattle on the weekend. Frank AG6QV (https://ag6qv.com/Blog/uhrc) was able to receive via reflection from Puget Sound ferries. Now thinking about a proper mobile-mounted setup for quick 2-way contacts.

https://youtube.com/shorts/n0ZXhANwGXc?feature=share

#hamradio #amateurradio #microwave

6m (50 MHz) FT8 over the past 15 minutes on pskreporter.info, strong TEP (transequatorial propagation)


#vhf #ft8 #hamradio #amateurradio #6m

@timjclevenger Looks like a laundromat machine.

RE: https://infosec.exchange/@timjclevenger/113329259396802611

Calibrating the PID controller of a DIY reflow hot plate. Mistakes were made.

The lack of threading here is diabolical.

Hi folks, I've just posted an edited version of one of the presentations I gave remotely at Microwave Update 2024 Vancouver. It's about some of the techniques I've been experimenting with for manufacturing antennas and feeds now I have a tame 5000-pound killer robot in my workshop, otherwise known as a SYIL X5 CNC mill.
https://youtu.be/ZDQyhEpxXmA
#radio #cnc #machining #microwave #mmWave

📢 Videos from Linux Security Summit Europe 2024 (LSS-EU) are up:

https://www.youtube.com/watch?v=S1r94G8yJMs&list=PLbzoR-pLrL6pXwGwbAmhi3DgsaPKJTLde

I visited ESA’s antenna laboratory so now you get new wallpapers (for free even!)

PROGRAMMING TIP
avoid repeating the same 4 lines of code twice by writing 270 lines of beautiful, abstract, generic code

At Microwave Update in BC (https://www.microwaveupdate.org), one of the vendors had a 170 GHz spectrum analyzer. How is it possible in a device this size? #hamradio #microwave #amateuradio

Toured the TRIUMF particle accelerator in Vancouver BC, got to stand on top of a cyclotron. The magnetic field was strong enough to prevent paperclips from laying flat. It’s also where they store old focusing magnets (which become radioactive).