H8crilA

18 ms·

301.
by H8crilA 3y ago
I would only add that an organic (accidentally created) hash collision in Git will take an extreme amount of time. However, even today you can download the two PDFs from https://shattered.io/ , put them both in your Git repo
302.
by H8crilA 3y ago
Yes, but that's very little improvement over the generic 2^128 attack - trying random messages until one happens to match the target hash. The attack quoted by Wikipedia achieves only 4.6 bits of speedup (note that it's 2^123.4, n
303.
by H8crilA 3y ago
You can find this in any introduction to cryptography textbook/course. "Generic attack" is a common term for "just use brute force" [1]. It's called "generic" because it works regardless of the implem
304.
by H8crilA 3y ago
Security is typically measured in bits. But yes you're right, maybe I should have written "square as difficult" to be more clear :)
305.
by H8crilA 3y ago
Pre-image is approximately "twice as difficult" as a collision. A generic attack on, say, a 256 bit long hash function takes 2^128 time to find a collision, but 2^256 time to find a preimage. And like you say, this also shows up i
306.
by H8crilA 3y ago
SHA-2, including SHA-256, is constructed using a Davies–Meyer compression function. That compression function starts with a block cipher - so an object like AES, but with wider keys and wider block size. For SHA-2 this block cipher is calle
307.
by H8crilA 3y ago
I think that we've know that for a very, very long time: cellulose, i.e. wood or paper, is an example.
308.
by H8crilA 3y ago
US needs to spend a certain amount of money to deter opponents. One of the major opponents is Russia. By spending a small fraction of the deterrence money for example on cheap 155mm shells instead of on for example high tech F-22s in Alaska
309.
by H8crilA 3y ago
Great, now please halt the congress psychotic episode for another moment and continue supplying Ukraine, to destroy more of the Russian armed forces at the cost of single digit percentage of the defence budget. There will not be another suc
310.
by H8crilA 3y ago
It still adds entropy. You're thinking of uniform entropy vs just entropy, but the former is easy-ish to produce from the latter, for example by using hash functions. Also, it's obviously a stunt - you are probably much better off
311.
by H8crilA 3y ago
Worth adding that gpsjam does the exact same thing with ADS-B data.
312.
by H8crilA 3y ago
They're not contradictory - markets are both short term and long term inefficient. Or at least they had been up to this point. Note though that in both cases there's a rather convincing story that explains where the edge is coming
313.
by H8crilA 3y ago
My pet peeve in English terminology is the very word "computer". It should have always been called something like "the mathematical machine", computation is just one of them! The French l'ordinateur is much better.
314.
by H8crilA 3y ago
What a psychopath. Also, why isn't anyone suggesting suing the employer? Your contract is with the employer, not the mentally ill IT guy. And obviously anyone who works for the employer shouldn't be trusted here (luckily the new I
315.
by H8crilA 3y ago
Have you used ChatGPT? It can do (at least) simple reasoning, for example simple spatial reasoning or simple human behavior reasoning.
316.
Shock Wave Formation in Transonic Flight (On a Boeing 767) [video](youtube.com)
2 points by H8crilA 3y ago|0 comments
317.
by H8crilA 3y ago
This. Clear Air Turbulence can strike at any time, and you - as in your body - can get seriously damaged even with moderate turbulence. Few people have ever seen severe or extreme turbulence, including the flight crews, but that can happen
318.
by H8crilA 3y ago
It's very easy to get to slightly below 0g by just pushing on the stick or yoke, and that would be enough to cause what the passengers describe here. You could even get well below 0g. Almost all turbulence of the sort that you can expe
319.
by H8crilA 3y ago
Well then define it to be equal to itself ;) NaN is a strange thing anyways, for example you cannot invert it so that NaN+(-NaN)=0
320.
by H8crilA 3y ago
Doesn't the weirdness come from the fact that this structure is commutative, but not associative? I know of only one other structure of this type, namely floating point numbers. For those that don't remember definitions: (a+b) = (
321.
by H8crilA 3y ago
So much for savings on power lines cost (but at least there are savings on power line power losses).
322.
by H8crilA 3y ago
Never use textbook RSA. Source: every course on cryptography.
323.
by H8crilA 3y ago
Case in point would be modern gliders (sailplanes). One simple parameter that describes their aerodynamic performance is the maximum achievable Lift/Drag ratio, and that dimension-less ratio has climbed from ~30 in the 1960s to as high
324.
by H8crilA 3y ago
From the HTML: <div class="slider_viscosity" id="fdm_hero_sl0">(...)
325.
by H8crilA 3y ago
And it's not just Houthi (i.e. Ansar Allah), they have a government of sorts that is a coalition of more parties. We should probably accept the reality that they are just the same as the old North Yemen.
326.
by H8crilA 3y ago
Shock therapy like the one in Argentina is what turned the tide of inflation in the 1980s in the US: https://en.wikipedia.org/wiki/Early_1980s_recession_in_the_U... . Milei got a strong mandate, but we will have to see
327.
by H8crilA 3y ago
Except all tech giants do just that, yet they fire people. Google has an amount of cash in the bank comparable to all the help that has been sent to Ukraine (though there are also many things that Ukraine gets that are not really measurable
328.
by H8crilA 3y ago
Not true, there's a lot of quality content on Reddit. What is more alarming is that the garden walls are getting higher, and only the Big Players are allowed to make direct bridges with it.
329.
by H8crilA 3y ago
Long COVID shares a lot of symptoms with ME/CFS. And yes it has been researched before, but neurological illnesses are usually beyond our knowledge at this point. Additional funding/attention to Long COVID could help with both.
330.
by H8crilA 3y ago
It is a finished thing, no? So many systems/products have it built in for quite a few years now.

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