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digitalPhonix

594 karma · joined September 12, 2023

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digitalPhonix··on Tesla Optimus robot takes a suspicious tumble in new demo
That’s what lesuorac is saying. The SEC found he violated the rules for a publicly traded company... And then could do absolutely nothing about it to enforce the rules.
digitalPhonix··on A Cozy Mk IV light aircraft crashed after 3D-printed part was weakened by heat
Glass transition temperature I think
digitalPhonix··on ML-KEM Mythbusting
Actually, thinking about this a bit more - saying that there's no "Nobody but us backdoor" to prove there's no backdoor is a poor argument.

As an example - if there's a weakness that affects 50% of keys (replace with whatever hypothetical number), NSA can make sure it doesn't use those affected keys but still retain the ability to decrypt 50% of everyone else's communications. And using the entropy analysis from this post, that would require 1 bit hidden in the parameters which is clearly within the entropy budget.

digitalPhonix··on ML-KEM Mythbusting
> Well it turns out there is one customer who really really hates hybrids, and only wants to use ML-KEM1024 for all their systems. And that customer happens to be the NSA. And honestly, I do not see a problem with that.

Isn’t the problem (having only read a little about the controversy) that the non-hybrid appears to be strictly worse, except for the (~10%) decrease in transmission size; and that no one has articulated why that’s a desirable tradeoff?

On the face of it, I don’t see a problem with the tradeoff (both ways, that is) choice existing. I expect smarter people than me to have reasons one way or the other but I haven’t seen a reason for saving bandwidth that could articulate the concrete use case that it makes a difference.

> There is no backdoor in ML-KEM, and I can prove it. For something to be a backdoor, specifically a “Nobody but us backdoor” (NOBUS), you need some way to ensure that nobody else can exploit it, otherwise it is not a backdoor, but a broken algorithm

Isn’t a broken algorithm also a valid thing for NSA/whoever to want?

Them saying they want to use it themselves doesn’t actually mean much?

digitalPhonix··on A Fast 64-Bit Date Algorithm (30–40% faster by counting dates backwards)
Very nice writeup!

> Years are calculated backwards

How did that insight come about?

digitalPhonix··on [dead]
> Following these [other] incidents and a series of reports on photographers, a U.S. federal judge has temporarily barred Homeland Security agents from using riot control weapons on journalists in the Chicago area.

Why temporarily?

digitalPhonix··on The Pentagon Can't Trust GPS Anymore
I think air traffic is probably the most resilient group - I’m surprised no one answered!

IFR was designed long before GPS and for the most part, GPS has been shoehorned into the “old” system. VORs around the country are still “primary” for navigations; airways are still primarily defined around VOR radials; and approach plates to large airports have plenty of non-GPS precision approaches. (Some smaller GA-only airfields that recently got IFR approaches might be WAAS/GPS only).

Losing GPS might increase workload for some sectors (en route sectors who won’t be able to clear aircraft direct to waypoints) but not likely TRACON who are vectoring aircraft on pre-defined approach plates.

If you pick a random commercial flight on your favourite flight tracker and check it’s route, 99% of the waypoints on it are defined as VOR intersections, not GPS coordinates. (The remaining 1% are likely en-route waypoints and not in the departure/approach area).

Also, the instrument proficiency requirements for pilots require multiple approach types to be logged every 6 months so they are definitely capable of non-GPS approaches.

digitalPhonix··on Chat Control is close to being adopted, and its worse
I couldn’t find the text of it (unsurprising if it’s being rushed through), but how does it “outlaw anonymous communication”?

That sounds even more terrifying than the original chat control! How is this the back door “compromise”?

digitalPhonix··on The Email That Broke Brussels
No more than Jesus’s parable about planting the tree being about the actual tree.
digitalPhonix··on The Email That Broke Brussels
> AUTHOR'S NOTE: This story is 100% fictional, except for all the parts about the EU AI Act having no enforcement teeth…

It’s a long parable to explain:

> FINAL THOUGHT: Somewhere in Brussels, right now, someone is discovering that "effective oversight" means nothing without the technical ability to enforce it. This story is for them

digitalPhonix··on A350-1000ULR – Airbus that will fly non-stop from Sydney to London and New York
22 Hours! The logistics for 3 meals, crew sleep and all that must be crazy.

14 hour flights from Australia to the US west coast already have 3 crew rotations.

digitalPhonix··on The Silent Scientist: When Software Research Fails to Reach Its Audience
The Fourier transform existed for the sake of existing for ~200 years before it turned out to be useful for building the entirety of our communications infrastructure on top of.
digitalPhonix··on Adeia sues AMD for patent infringement over semiconductor technology
> Technology licensing company Adeia

Is "technology licensing company" a euphemism for patent troll? Or are there legitimate companies that do only/primarily technology licensing?

digitalPhonix··on Inside Amazon's engineering culture: Lessons from their senior principals
AWS (the old, good stuff: EC2 and S3 and maybe DynamoDB)
digitalPhonix··on KDE Linux deep dive: package management is amazing, which is why we don't inclu
I have a question for immutable distros: if I want to add a PAM module and configure sudo to use it, what’s the right way? (Or do anything that touches /etc/)?

The userspace vs. system classification doesn’t seem to have nice answers to configuring system components but still having the benefit of the immutable district; it’s all or nothing

digitalPhonix··on OpenAI Set to Challenge Google with New ChatGPT Atlas Browser
Not legal control, just de-facto control because no one else seems to have the knowledge & resources to build a browser enginer other than Mozilla (and Firefox's market share keeps shrinking).

Brave and all the other browsers based on Chromium have said that they can only keep support for Manifest V2 extensions as long as support remains in Chromium; meaning they don't have the ability to maintain it themselves and are at the mercy of upstream.

digitalPhonix··on OpenAI Set to Challenge Google with New ChatGPT Atlas Browser
Google is surely terrified of this “challenger” being built on a foundation (chromium) they have complete control over.
digitalPhonix··on US Government Uptime Monitor
This was an example of foreign interference (from where exactly is likely to remain unknown[0]); not an apolitical governor general stabilising the political system.

[0] https://thediplomat.com/2020/07/new-light-shed-on-australias...

digitalPhonix··on Passkey is still too confusing to use
Why do you need to know what “relying party” could mean for

> To be very honest here, you risk having KeePassXC blocked by relying parties

to not cast the author in a bad light?

They are straight up threatening a well regarded open source password manager for implementing portability for passkeys.

digitalPhonix··on Canadian bill would strip internet access from 'specified persons', no warrant
> There is judicial oversight, but only after the order is implemented

How would one find out information about the process, find a lawyer etc. without internet access?

digitalPhonix··on Microsoft is plugging more holes that let you use Windows 11 without MS account
I wish I was good enough for competitive gaming. It’s just where my friends hang out - I shouldn’t need a separate machine/boot just to play games with friends

> Or at least put the gaming in an isolated Windows VM with GPU passthrough

That’s a guaranteed ban by most anticheats

digitalPhonix··on Microsoft is plugging more holes that let you use Windows 11 without MS account
Games with anti cheat :(
digitalPhonix··on NSA and IETF: Can an attacker purchase standardization of weakened cryptography?
> If you show up to my manager demanding to know why I made a specific engineering decision, he's not going to tell you

Well if your working in a standards development organisation then your manager probably should.

It looks like (in the US at least) standards development organisations have to have (and follow) very robust transparency processes to not be default-liable for individual decisions.

(Unlike most organisations, such as where where you and your manager from your scenario come from)

digitalPhonix··on Privacy Harm Is Harm
There's a 30ish page (not including all the legal template) brief explaining their arguement. How is that not making a case? There's even a excerpt from the brief going over one of their arguments.
digitalPhonix··on Comparing Rust to Carbon
> Rust is usually the least reasonable option

If the software was originally written in C/C++ based on some performance reasons (avoiding GC/being in control of boxing/being in control of when to use vtables etc.) then what would be more reasonable options?

> Fully automatic memory-managed languages should be considered first.

Those languages have existed for 20+ years so if they were ruled out as part of the original decision making then they probably still aren't applicable.

digitalPhonix··on Helium Browser
Sure but I only use Firefox (no other browser installed (except Edge on Windows)) and I don’t have any issues; so some none-trivial portion of the web doesn’t require Chrom(ium) specific behaviour.
digitalPhonix··on Are top CEOs underpaid? (2019)
Because it requires the invention of new techniques for measuring infinitesimally small quantities? (Sorry)
digitalPhonix··on Trump to impose $100k fee for H-1B worker visas, White House says
> this section shall not apply to any individual alien,

> [or] all aliens working for a company,

> or all aliens working in an industry

I think it very explicitly allows that case

digitalPhonix··on In Defense of C++
> However if I may raise my counter point I like to have a rule that C++ should be written mostly as if you were writing C as much as possible until you need some of it's additional features and complexities.

How do you define “need” for extra features? C and C++ can fundamentally both do the same thing so if you’re going to write C style C++, why not just write C and avoid all of C++’s foot guns?

digitalPhonix··on Chat Control faces blocking minority in the EU
Heh? Are examples not used in your culture?
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