bri3d

6 ms·

1.
by bri3d 3d ago
I read this as the chunks are 64 bytes and thus each chunk is split over 9 frames. I haven’t looked yet but it’s probably an ISO-TP esque framing protocol.
2.
by bri3d 4d ago
Yeah, that’s a good way to summarize what people are mad about; they basically moved all of the calibration from onboard to offboard diagnostics, and then thwarted most efforts to access the offboard diagnostics. Automotive is similar and I
3.
by bri3d 4d ago
Newer Deere equipment has a lot of components that have to be adapted using DSA - turbo actuators, various hydraulic sensors, various suspension leveling sensors, fuel injectors, interior displays, and anything SCR related are the big ones.
4.
by bri3d 7d ago
Palantir sell consulting services ("forward deployed engineering") around graph and map database platforms, using data supplied by customers. Some of their customers ask them to make surveillance aggregation systems, others ask th
5.
by bri3d 16d ago
I don't agree that this particular trait of macOS makes an implementation at the layer WINE implements (full API+ABI) any harder or easier. Certainly, vertical integration makes OS porting (ie Asahi) and lower level emulation more diff
6.
by bri3d 16d ago
No? Windows also has its own graphics subsystem, compositor, and an even bigger set of user land UI/forms/controls libraries than Mac OS. It really is just a critical velocity / adoption / time thing, there’s nothing str
7.
by bri3d 19d ago
I don't think this is new with LLMs (finding an exploit based on a few words offhand has always been a fun part of exploit development), but it's scaled and democratized to mass exploitation of low value targets. Backing exploit P
8.
by bri3d 20d ago
> The entire point of compiling is to strip that extra data out, leaving pure functional logic that doesn't even strictly match the source logic thanks to optimization. I strongly disagree with this notion from even a conceptual (mu
9.
by bri3d 20d ago
Yes, I agree with you (see my sibling post), but it's not what the post I replied to was saying.
10.
by bri3d 20d ago
It seems like it could go either way to me in the US (not a lawyer, but someone who has a fair amount of experience in reverse engineering / fair use issues). On the one hand, it is fairly clear that producing source code with the expl
11.
by bri3d 20d ago
Most of these projects carefully distribute only the source code representation of the binaries, for this reason, relying on the consumer to acquire / own the art assets and copyrighted material (logos, trademarks, etc.).
12.
by bri3d 23d ago
Only server, as far as I know. Server is now either high-density E core (Sierra Forest) or low-density P core (Granite Rapids), but desktop and laptop are heterogeneous still; laptops are getting even more heterogeneous because they have P-
13.
by bri3d 23d ago
> Realistically, that sort of thing isn't useful as non-homogeneous architectures really suck for an application or OS to deal with. I agree that if each core doesn't "support" the full ISA it's a huge pain (the
14.
by bri3d 25d ago
There’s a technology fundamental driving the short form aspect too, current video models are all trained on <500 frame sequences and struggle to generate long shots. There are a lot of attempts in the literature to improve cross-generati
15.
by bri3d 28d ago
Android has a proprietary HAL on both ends; the userspace interfaces to drivers are not the same as on "normal" Linux for almost any devices (baseband, video acceleration although this is at least EGL based, cameras, sensors, audi
16.
by bri3d 1mo ago
Friction drive e-bike conversions were popular years ago. They generally: * Wear tires surprisingly quickly * Absolutely suck in any form of weather or terrain condition (dirt, rain, etc.) * Have ~20% less efficiency than any other drive fo
17.
by bri3d 1mo ago
> Wait until they find out your mechanic has unfettered access to your car's OBD port when you hand them the keys Surprise! “They” did find this out and UN155/156 regulate a bunch of protections against local “attackers,” often
18.
by bri3d 1mo ago
With respect to 2), I don't think this should work architecturally even if the DRAM controller has knobs which can be accessed, because the guest's RAM should be encrypted with keys that can't be recovered in this way. It&#x2
19.
by bri3d 1mo ago
No, because the two platforms often don't share the same underlying kernels; this has been one of the main issues and complaints with ROCm/MIOpen since the start, although they are catching up slowly. This is actually a corollary
20.
by bri3d 1mo ago
ZLUDA is still alive. AMD sponsored it and the project was briefly halted during a dispute with them, but it’s been making steady progress. It doesn’t really make sense for AMD themselves or most use cases, though; any compatibility shim ju
21.
by bri3d 1mo ago
The CUDA runtime coming with a gazillion reasonably decent kernels (DNN, BLAS, CUTLASS) and a concurrency system (NCCL) is a big deal; especially in the “early days” very few researchers or development runtimes were even writing their own k
22.
by bri3d 1mo ago
He gave a talk at Defcon.
23.
by bri3d 1mo ago
Certainly not at these frequencies and corresponding high capacitance values; getting 22nF out of a PCB even with ECM would require quite a large surface area and at 220GHz you can't have that since your wavelength is so short; you&#x2
24.
by bri3d 1mo ago
A sizable percentage of datacenters use open loop water spray towers, but the alternative, forced air exchange (ie add more giant fans) uses more electricity. It’s fairly complex to quantify which is “better” or “worse” but there exist data
25.
by bri3d 1mo ago
That's not how this works, at all. Visual approach is a specific IFR procedure. It's basically designed to expedite and simplify the landing process in situations where the pilot can see the airport and traffic allows - instead of
26.
by bri3d 2mo ago
Simulink, Labview, Bosch ASCET are all pervasive in control systems engineering, especially in European automotive applications.
27.
by bri3d 2mo ago
> It's a zero day in some caching proxy who may not have had that threat model in mind. I guess its primary purpose is caching packages, not restricting internet access. In many if not most environments where I have seen these used,
28.
by bri3d 2mo ago
It's "just" a restructuring; the previous setup was a really bizarre financial product where Citizens Bank gave you a 24-month 0% personal loan to buy an iPhone, but Apple would also buy your phone and loan out and sell you a
29.
by bri3d 2mo ago
It doesn't; BMW use the CCC Digital Key standard for "Digital Key Plus" and there's no Internet required post provisioning. This story really reeks of misunderstanding or "needs more information" as for BMW esp
30.
by bri3d 2mo ago
My experience has been that Qualcomm mobile phone chipsets don’t run Android on the modem side, but that standalone (ie laptop / USB / router) ones like this Quectel part sometimes do, in order to provide the userland components t

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