Viewing profile — datenwolf

GDPR covers more than just PII.

> There are still some people who need to run 32-bit applications that cannot be updated; the solution he has been pushing people toward is to run a 32-bit user space on a 64-bit k…

First things first: It's just "Vulkan". With respect to OpenGL with the current de-facto standard toolkits Qt and GTK you can't really get away from them for the time being, since …

Yep

From case witness testimony https://storage.courtlistener.com/recap/gov.uscourts.nysd.63... 12. The forensic analysis also revealed that Elez sent an email with a spreadsheet conta…

> Some (many?) NASA engineers are at the high end of the band and are advocating a return on Dragon instead. Boeing is obviously at the low end of the band and thinks it is a low r…

Exactly. If we assume the backdoor via liblzma as a template, this could be a ploy to hook/detour both fprintf and strerror in a similar way. Get it to diffuse into systems that re…

What annoys me the most about Reddit is, that it's essentially just a rehash of Usenet with marginally more moderation features, up/down-voting and custom CSS for each group/subred…

Strictly speaking, those fat Cookie banners are unlawful under the regulation of the GDPR; the GDPR mandates that a site must not behave functionally different given consent or not…

Fun fact: Rust's development saw significant traction and support by Mozilla in the first place to be used for the development of Servo. Or in other words, the eventual development…

Does anyone know the size of Bandcamp's catalogue. I'm just wondering about hardware costs (storage) would be for prospective competitors who intend to swoop up Bandcamp's customer…

memory-safe language does not imply the use of a VM. It can just as well mean, that the compiler will attempt to execute a proof, that memory is never accessed out of bounds, witho…

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If you really, really want to ruin an X11 session, I got you covered: https://git.datenwolf.net/codesamples/tree/samples/X11/x11at...

> If I define a function that always returns 1… then it's Kolmogorov complexity is also extremely low. Look if you have a well enough hash function, it output should be near the Sh…

Boltzmann. But it doesn't really matter, it's the same thing. Yes, I know that looking at a sequence of, say 1000 identical bits looks like it's got just 10 bits of entropy after s…

That only works, if you know exactly, that the low bits are constant. Otherwise you may run into the issue that due to unsteady rate of RDTSC between two processes/threads that may…

You don't know precisely at which frequency the cycle counter runs. Depending on the system load it might either run faster or slower than the lowest bits the HPTC. For what it's w…

60 bits. Yes, I know, you can compress it down very well. But consider that entropy in computation involves not just the bits you store, but also the bits that the processor touche…

I did update my program, now it measures the ratio.

Actually hashes do create entropy (every computation creates entropy in some form or another). What's the entropy of a 4 bit number? What's the entropy of a 4 bit number hashed by …

Ah crud, you're right. What'd really be interesting to see is the ratio between d/dt rdtsc and d/dt clock_monotonic.

Because the raw value from the timestamp will be very low entropy and have the short scale variation concentrated in just a few bits. A hash not just destroys information, it also …

It's 64 bit on 64 systems. In the world of hard realtime applications there's still a huge armada of systems out there in the field running on 32 bit (think motion control, CNC mac…

RDTSC is directly influenced by frequency scaling. So while monotonic, its clock interval is neither constant, nor deterministic on modern systems. Here's a small online visualizat…