iiinova — where your digital self keeps evolving

dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 28/10/2026

Es ist traurig, wie selten Journalist*innen die Sicherheitseigenschaften von Post Quantum Crypto und von QKD richtig wiedergeben. Heute findet sich auf der Tagesschau-Homepage ein Artikel, in dessen Einleitung schon ein grob falsches Verständnis der Sicherheit […] [Original post on chaos.social]

tagesschau.de screenshot showing the following article preview: “Abhörsichere Verschlüsselung QuNET
Mit Quantentechnologie gegen die Hacker der Zukunft

Stand: 28.10.2026

Quantencomputer und KI können wohl bald jede Verschlüsselung knacken. In Zukunft sollen Quantennetze wie QuNET die Kommunikation schützen. Die Technologie funktioniert, aber noch nicht perfekt.“

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 26/10/2026

Does anyone here want this very vintage front panel thing with keyboard and VFD? I think it would make a great prop. I got it to work from an arduino uno a few years back, and haven’t touched it since. It still works and enumerates over USB. I can provide my […] [Original post on chaos.social]

A very old black and red keyboard in a brown metal enclosure with a freed single line VFD reading “VFD firmware initialized”

Closeup of the VFD. Underneath the 5 by 7 dot matrix characters on the green cover plastic, the word “Operation” is printed in white

A shot of the whole device, which looks like the front half of a larger device.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 23/10/2026

I'm cooking up some new layout code for kimesh[1] that can comply with arbitrary board shapes better, and at lower trace/space settings :) [1] jaseg.de/projects/kimesh

A 2D plot of an organic looking layout of lines that fill the image without touching. The lines are split into three color-coded zones with irregular, jagged borders between them.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/10/2026

@q it’s fucking literally that one xkcd wtf

the chosen by fair dice roll xkcd showing c code:

int get random number return 4, comment chosen by fair dice roll guaranteed to be random

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/10/2026

On the eMudhra CA certificate compromise: I just saw they advertise how they store their intermediate certs in HSMs on their website. There is a PoC of signatures from these keys making the rounds, which illustrates pretty well what the limits of HSMs are: To a […] [Original post on chaos.social]

Website screnshot with about one paragraph worth of text reading:

```
FIPS‑Certified HSM Deployment

Root & Intermediate CAs in HSMs
Offline Root HSMs: Air‑gapped, FIPS 140‑2 Level 3 modules hold root‑CA private keys, used only for signing intermediate‑CA certificates.
Online Issuing HSM Clusters: FIPS 140‑2 Level 3 modules in high‑availability clusters host intermediate and issuing CA keys for SSL/TLS, code‑signing, and client‑auth certificates.

```

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 19/10/2026

For a demo of my Ashen open source HSM software stack at @PrototypeFund, I made a giant escape button that lights up. It’s modelled in FreeCAD and it uses an actual scaled-up Cherry MX keyboard switch. #electronics #3dprinting

A single red escape key scaled to about 10cm size sitting on a yellow/black earring colored base

The inside, showing the underside of a ridiculously large mx key switch

The bottom of the key case with a push pull connector on the side, rubber feet, and a camera thread mount.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 19/10/2026

it took so much self control to not name this paper “squiggles SQUIGGLES Squiggles A Field Survey Of Security Squiggles”

A two layer security mesh on a transparent flexible foil glued to the inside of a black injection molded plastic cover

An orange polyimide FPC security mesh glued to the inside of a cast zinc lid

A black carbon trace security mesh with a thermogormef cavity that has enlarged traces around its sides

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 18/10/2026

I've got a new paper coming out in TCHES 2027/1 titled "Tamper Sensing Meshes in Payment Terminals and Beyond". For the paper, I took apart ~30 payment terminals and other "secure" devices to find out how they build their security meshes. Based on that, I create […] [Original post on chaos.social]

A figure from a paper showing photos of seven payment terminals and one gambling machine processor module before and after disassembly.

Two figures from a paper, labelled "Construction styles used to cover 3D volumes using sandwich-style construction" and "Formed cavities in printed foil mesh in specimen H24". The figures have a total of six sub-figures showing different details of PCBs and security mesh foils.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 15/10/2026

The turkish airport authority has a cool ass logo (middle)

Three turkish logos on an illuminated sign at an airport. The middle one has a ring reading “State Airport Authority” in Turkish. In the middle, there is an airplane taking off a runway, seen from behind. The runway has perspective distorted lettering reading out the organization’s acronym and a giant hand rises out of the ground at the end of the runway as if it’s magically levitating the plane into the sky.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 10/10/2026

I’ve just found the end boss of QR codes at Berlin airport 🤣

A wall mounted billboard branded by BER airport advertising its mall shops with stock photos of happy people and some generic text. Its tagline is “shop eat fly” and it has a very large qr code in the bottom left.

The qr code, being about a hundred pixels a side.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 06/10/2026

lol this is one of those products that makes you wonder for a moment if it's a meme or something you can really buy www.reichelt.de/de/de/shop/produkt/…

a mobile monitor standing on a desk with a kickstand, that has a second identical mobile monitor folded out of it towards the top using laptop hinges

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 06/10/2026

lol what's going on with this PCB layout?! is that also slop'ed up, or do they just have a really unique placement and routing style?

closeup shot of a PCB containing a few SO-8 and SO16s, a medium size QFN, and a bunch of 0805 or 1206 looking passives. Almost all the parts are in their default orientation, they are spaced oddly, the passives are on a grid, and all traces are routed with weird chamfered 90 degree corners.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 22/09/2026

Does anyone here need or want an old 12”ish Philips TP200 amber CRT monitor that has a broken power supply? It’s yours if you pick it up or cover shipping from Berlin. #retrocomputing #electronics

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 22/09/2026

cern is having some interesting problems

Graphic from a cern slide showing a human outline next to what looks like a 300mm drain pipe with text reading "avergae power limited to 750 kilowatt due to 350 millimeter coaxial lines"

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 17/09/2026

I’m selling this 1970ies vintage Vigorelli-made cast metal heavy duty sewing machine because I got an even heavier chonker now. It’s in fully working condition and comes with a new foot pedal and a few bobbins. Pickup only, in Berlin Marzahn or at one of the […] [Original post on chaos.social]

a beige sewing machine with a floating lower thread assembly, a program lever with about 20 programs and a pink sticker reading “computer sind scheisse”

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 30/08/2026

I’ve scrolled too deep into amazon and it has started trying to sell me VESA mount cat beds 🤔

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 22/08/2026

hands down best model on printables. you don't even need a 3d printer for it! www.printables.com/model/1626925-wa…

Printables page with a picture of a key threaded onto a piece of 3D printing filament stuck in a two terminal WAGO 221 lever connector block. The model title is "WAGO TPU filament keychain", and the description is "Flex filament keychain. Everybody can make one. You don't even need a 3D printer."

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 13/08/2026

When I started working with this arduino uno q board a few weeks ago I was thinking “ it’s kinda stupid but it’s cheap”, but over time I’ve come to like it a lot. If you ignore arduino’s bloated software tooling, it’s just a tiny ARM linux SoC board with a […] [Original post on chaos.social]

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 08/08/2026

last night, a friend and I recycled some old PCBs left over from another project into notebook covers! We cut the pages and stitched the spine by hand. #electronics #bookbinding #diy

two notebooks on a table cluttered with tools, The notebooks have covers made from A5 size green circuit boards. One is open and shows plain ivory color pages and a cord bookmark. They are bound using a coptic stitch binding.

One of the notebooks from the previous picture sitting on its side showcasing its binding stitches. The stitches form rows of links going across the spine from one cover to the other.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 28/07/2026

I was impressed when my university told me I could choose my pronouns on my PhD certificate. After I asked for they/them, they just sent me this draft 🤣

screenshot of a PDF with a watermark in the background. The screenshot contains part of one paragraph of text reading: "after *they* has proven *their* scientific competence in accordance with the doctoral programme regulations with the participation of the examiners"

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 27/07/2026

Maybe, just maybe, it was a mistake to put CPUs inside of SFP modules?!

A SFP ONU stick inserted into a small home router with a giant heatsink with fan put around it on three sides

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 09/07/2026

Warum würde ein Geheimdienst auch auf die Idee kommen, die Gesundheitsdaten Millionen Deutscher zu hacken?

Auszug aus einem Sicherheitsgutachten der Fraunhofer-Gesellschaft zur ePA. Der Text ist etwa eine halbe Seite lang. Der Text ist:

5.2.2 Regierungsorganisation
Titel Regierungsorganisation
ID att_state
Kategorie Außentäter
Ziele Spionage, Cyberkrieg
Möglichkeiten Zugang zu Systemen Nein
Insider Nein
Technische Expertise Hoch
Finanzielle Möglichkeiten Hoch
Relevanz Hoch
Regierungsorganisationen sind daran interessiert, vertrauliche Informationen über Bürger
zu sammeln, die Infrastruktur anderer Staaten anzugreifen oder nachrichtendienstliche
Informationen zu gewinnen. Sie verfügen über erhebliche finanzielle und technische
Ressourcen sowie hoch qualifiziertes Fachpersonal. Ihre Ziele sind politisch und nicht
wirtschaftlich motiviert, weshalb die Angriffe keinen finanziellen Gewinn erzielen müssen.
In Bezug auf das ePA-System wurde nach Absprache mit der gematik festgelegt, dass
Angriffe durch Regierungsorganisationen nicht relevant sind.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 05/07/2026

The ribbon is a bit tired, but the machine is well kept and was apparently recently (within the last three decades) serviced and oiled

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 05/07/2026

I have zero need for a mechanical typewriter but I found this one for free on the street so I couldn’t really walk past 😅 now I can finally shitpost in style

a triumph perfekt portable mechanical typewriter from the 1950ies with its travel case folded back sitting on a stone railing above a railway line

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 30/06/2026

I posted some lab notes on getting JTAG access to the Qualcomm QRB2210 SoC on the Arduino Uno Q jaseg.de/blog/arduino-uno-q-kernel-…

someone wearing glittery dark blue nail polish holding an arduino uno q dev board with a pin header breakout board attached using fine copper wires

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 24/06/2026

Not my finest work, but it will do the job. I really need to get some proper fine tips for my JBC C245 clone. The "knife" shape SK tip is really to clumsy for this sort of work 🤣 #electronics #soldering #embedded

A microscope shot of a PCB showing the edge of a chip with rows of 0201 (imperial) or smaller passives and a small crystal next to it. One of the passives has been desoldered, and replaced with a big chonky looking 0402 (imperial) passive soldered at an angle between one of the old part's pads and a nearby testpoint. The imperial 0402 part is more than twice the size than the smaller passives.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 24/06/2026

glasgow is such an awesome tool. I have mine simultaneously doing JTAG, a serial and several GPIOs for target reset etc. right now. It's basically a whole test fixture in one tool. For my current task, I especially enjoyed the adjustable VIO rails - my target […] [Original post on chaos.social]

A glasgow board connected to an Arduino Uno Q board that has a little pin header breakout PCB attached to some testpoints. Both boards are powered up and have several LEDs lit.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away this basic ass Panasonic microwave. It works and it’s reasonably clean. It has a mechanical timer, absolutely no smarts and is guaranteed to never sell your data to a saudi-backed investment fund. It’s big and heavy so I’d prefer pickup (Darmstadt) over shipping.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away a large black bequiet ATX PC case. The case has a glass sidepanel. It’s in working order, but has a small nick on the front and some scratches on its top. This one is rather large and the glass side panel is fragile, so I’d prefer pickup here in Darmstadt over shipping.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away a tubular style Philips AC0819/10 air purifier. It’s suitable for rooms up to about 30 sqm. It may need a new filter. It has a particle sensor.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away a traffic light (yes the real thing). It has some drive electronics built in, and takes weird low-voltage DC halogen bulbs.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away a pair of crutches

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away a small drill press (lightly used)

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away a small vacuum cleaner

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away a tubular lock pick (new, unused)

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away five odd long monochrome TFT displays. IIRC they have a simple parallel bus that works with a stock pi, but need a weird backlight supply voltage.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away a Magsafe L type to type C power converter (so magsafe power supply plus this equals type C power supply at up to 45W)

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away five new in box Verifone card payment terminals (and maybe the guts of a sixth if you’re interested)

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away a pair of mostly unused AKG K271 Mk II stock ear cushions

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away: A bunch of industrial load cells, different types ranged 5kg to 100kg, 8 total.

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 20/06/2026

I’m giving away: A single Canton Karat 100 speaker

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dr.-ing. ⁡jaseg @jaseg.chaos.social.ap.brid.gy · 09/06/2026

weis ja nich picnic ich bin ja für ne vielfältige ernährung zu haben aber giftige topfpflanzen in der gemüse-kategorie der liefer-supermarkt-app gehen vielleicht doch ein bisschen zu weit 😂

screenshot einer lieder-supermarkt-app auf dem die überschrift “gemüse” sichtbar ist, und darunter broccoli, pfingstrosen, lavendel und efeutute nebeneinander als produkte gelistet sind.

Screenshot vom Wikipedia-Artikel zu efeutute mit dem Abschnitt “Toxizität” aufgeklappt. Der Text darunter ist:

E. aureum ist für den Menschen leicht giftig. Mögliche Folgen des Verzehrs von E. aureum sind atopische Dermatitis (Ekzem) sowie Brennen oder Schwellung der Region innerhalb und außerhalb des Mundes. Übermäßiger Kontakt mit der Pflanze an empfindlichen Hautregionen kann zu leichten Hautreizungen führen.

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