@gsuberland@chaos.social
@gsuberland@chaos.social avatar

gsuberland

@gsuberland@chaos.social

he/him

Into electronics, windows internals, cryptography, security, high speed networking, compute hardware, physics, colourimetry, lasers, stage lighting, D&B, DJing, demoscene, socialism.

Heavily ADHD.

Laser team @ EMF Camp, lasers & lighting orga @ NOVA Demoparty.

I sell parody warning stickers at Unsafe Warnings: https://unsafewarnings.etsy.com/

For a day job I hack stuff, I guess. Embedded tech, ICS/SCADA, marine stuff, x86 platforms, etc.

All posts encrypted with ROT256-ECB.

This profile is from a federated server and may be incomplete. Browse more on the original instance.

foone, to random
@foone@digipres.club avatar

When are they gonna make a smartphone with a built in RFID cloner? It'd make managing all those fobs easier

gsuberland,
@gsuberland@chaos.social avatar

@foone one of my older phones (one of the Samsung Galaxy ones, but I can't recall which) had an NFC chipset where you could get it to present an arbitrary UID, although you needed to sideload an APK to make it work because the original app got taken off the store. was useful though. I used to store hotel keys on it because most of them in that era just used the UID and didn't do any actual cryptographic handshake.

gsuberland,
@gsuberland@chaos.social avatar

@foone it's been donkeys years since I've seen a phone that'll even read, let alone emulate, low frequency RFID tags though.

gsuberland,
@gsuberland@chaos.social avatar

@shironeko @foone you can generally copy and re-transmit the storage contents of most types of NFC cards using most NFC chipsets, with the exception of block 0 (UID) which is practically always locked to the unique identifier of your chipset. chipsets that'll let you change the UID are pretty rare.

(also some blocks on the NFC card you're trying to clone may be locked behind some sort of unlock key or handshake, with varying implementation details depending on the type)

gsuberland,
@gsuberland@chaos.social avatar

@shironeko @foone normally it's the same deal for the cards - you can program everything but block 0, which is supposed to be factory programmed and fused off. but for most of the less fancy NFC card types you can buy "fully unlocked" variants on aliexpress that let you program all blocks with whatever you like, as many times as you like. but only really useful for cloning on basic systems that don't do any interactive checks, just "is the UID right? cool let them in".

gsuberland, to random
@gsuberland@chaos.social avatar

I just saw an article where someone described their product as having "the ease of configuration and setup as Docker" and I can only assume they are referring to a different piece of software that also happens to be called docker

gsuberland,
@gsuberland@chaos.social avatar

at least they didn't say kubernetes, I guess

andrei_jay, to random
@andrei_jay@autonomous.zone avatar

i like the new trend of rgb leds in carwashes

car wash
car wash
car wash

gsuberland,
@gsuberland@chaos.social avatar

@andrei_jay like a foam rave, but without the freezing cold trip home at 3am

gsuberland, to random
@gsuberland@chaos.social avatar

man, nothing drains my motivation like frustration. even though the PCB saga is likely resolved, which should be a cause for celebration, I'm just wiped out by it and haven't written a single bit of code today.

gsuberland,
@gsuberland@chaos.social avatar

@cgervasi I am, unfortunately, on a deadline.

thomholwerda, to random
@thomholwerda@exquisite.social avatar

The more I write about trashfires like Windows and macOS, the more I want to run away from them as much as I can.

I'm fairly sure that's why OpenBSD is sucking me in right now. It's the antithesis to what the major players are doing. A safe space, if you will.

gsuberland,
@gsuberland@chaos.social avatar

@thomholwerda I've never really enjoyed working with Linux all that much - it all feels a bit messy and disorganised, built by and for the kinds of people who are looking for a hobby project rather a tool that just needs to work - and I must admit that I've found FreeBSD to be an extremely refreshing alternative. it's not perfect, but it feels cleaner and tidier and better focused on function over being a technical playground.

gsuberland, to random
@gsuberland@chaos.social avatar

StackExchange Inc's deal with OpenAI is extremely frustrating, and users are being left without much recourse.

the story is already hitting the tech press, but much of it is missing important details and context about how StackExchange sites are run, not to mention the history of organised protest against SEI's pro-LLM stance.

I wrote a bunch about it here, in case anyone is interested in learning more about the situation and its impact:

https://chaos.social/@gsuberland/112401284014892261

gsuberland,
@gsuberland@chaos.social avatar

I would ask that folks please read the entire thread (the last post in the thread is here https://chaos.social/@gsuberland/112401426707865447 just in case it gets cut off) before considering replying here with comments or questions about the situation :)

gsuberland,
@gsuberland@chaos.social avatar

@soatok probably, but doing lots of minor edits with no positive change will also get them all reverted. they've had automatic detection for that kind of thing for years as part of their spam / defacement prevention tooling.

gsuberland,
@gsuberland@chaos.social avatar

@soatok ah, that'd maybe work, although I don't know what the threshold would be for useful poisoning. there are currently 82.3M questions and answers on the StackExchange network, plus countless more comments, so the per-unit efficacy of any poisoning would have to be extremely high.

gsuberland,
@gsuberland@chaos.social avatar

@soatok which will get reverted due to the auto-detection I mentioned earlier (and you'll probably get a tempban in the process)

gsuberland,
@gsuberland@chaos.social avatar

@soatok honestly the better answer is just to support the mods that're halting work or resigning in protest, and voice your displeasure to SEI.

gsuberland,
@gsuberland@chaos.social avatar

@foxyoreos @soatok solidarity in protest worked extremely well to effect change last time this came up. this time there's actual money on the line, though, so we'll see if it ends up being successful again. I imagine if not we'll see a major exodus.

mcc, to random
@mcc@mastodon.social avatar

Hard to imagine a signal that a website is a rugpull more intense than banning users for trying to delete their own posts

https://www.tomshardware.com/tech-industry/artificial-intelligence/stack-overflow-bans-users-en-masse-for-rebelling-against-openai-partnership-users-banned-for-deleting-answers-to-prevent-them-being-used-to-train-chatgpt

Like just incredible "burning the future to power the present" energy here

gsuberland,
@gsuberland@chaos.social avatar

@mcc part of me wonders whether SEI already knew this would put users and community moderators at odds with each other, in the hopes that it would prevent organised collaborative protest action that had been effective against SEI in the past (e.g. on the "no LLM answers" issue).

gsuberland, (edited ) to random
@gsuberland@chaos.social avatar

[serious, no joke replies or guesses / autotranslation please]

do I know anyone native or otherwise very fluent in Chinese who can tell me the correct term for a plated edge connector, like you might find on a PCIe card? specifically the "gold fingers" style connector feature you would find on the PCB side, not the plastic connector it slots into.

I've had an absolute nightmare trying to communicate this feature to a Shenzhen-based PCB vendor and I would like it to be easier in future.

gsuberland,
@gsuberland@chaos.social avatar

@attie yeah especially with these boards being for EMF, commissioned by someone on the team, and the setup date looming. it has been rather stressful.

gsuberland,
@gsuberland@chaos.social avatar

@phenidone others suggested this too. card edge (卡边缘) is under the connectors page, and when I search it I get pictures of card edge connectors (the type of connector that a plated edge would slot into).

gsuberland,
@gsuberland@chaos.social avatar

@phenidone they've been tagged a few times in this thread, I'll let them reply (or not) at their own pace :)

gsuberland, to random
@gsuberland@chaos.social avatar

it has gotten to the point where I'm having to send this to JLC's engineers because after FOUR STRAIGHT DAYS of explaining to them that they must not attach edge rails to the end of the edge connector, they said ok, then sent me a review file where they did it anyway.

gsuberland,
@gsuberland@chaos.social avatar

@ppxl far too many.

whitequark, (edited ) to random
@whitequark@mastodon.social avatar

Can you answer this simple question about the C programming language?

$ cat test.c
<string.h>
<stdio.h>
int main() { printf("%d\n", strlen("\x01c")); }
$ cc test.c && ./a.out

What number does this program print?

gsuberland,
@gsuberland@chaos.social avatar

@whitequark oh no.

OH NO.

gsuberland,
@gsuberland@chaos.social avatar

@whitequark I have a sneaking suspicion that the answer is 1 and I hate that I am even considering that this might be a "feature" of C's string parsing.

gsuberland,
@gsuberland@chaos.social avatar

@whitequark oprah voice you get a footgun! and you get a footgun! everyone gets a footgun!

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