hannob

40 ms·

481.
by hannob 5y ago
QKD advocates have been doing this for ages, it's been pointed out repeatedly that they make dishonest claims and they continue to do so. Here's a paper from 2004(!) pointing this out: https://eprint.iacr.org/2004&
482.
by hannob 5y ago
FWIW libarchive and its commandline tool bsdtar, which are widely available and often installed by default on Linux hosts, is able to unpack most rar files. Other than that I agree with the post, but if you have a rar file and need to unpac
483.
by hannob 5y ago
The term "carbon negative" is getting overused a lot, and this is one example... The carbon is not removed permanently, it's stored in products that will eventually end up in an incinerator causing CO2 (or worse, on a landfil
484.
by hannob 5y ago
> What is “weird stuff”? Doing something that is clearly illegal to stop your kids from accessing the Internet certainly is. Bonus points if it is also heavily enforced and easily traceable. All of that is true for using a signal jammer.
485.
by hannob 5y ago
> For instance, one scam is replacing the QR codes on parking meters with another one, linking to a different payment site How's that different from printing an URL on the parking meter which can be replaced by an attacker with a di
486.
by hannob 5y ago
The article doesn't mention it: there is actually a research project in France doing iron oxide electrolysis, but in a different way than what Boston Metal does. It's called Siderwin and steel company ArcelorMittal is involved: h
487.
by hannob 5y ago
A lot of this is already commercial. Kayrros is e.g. selling services: https://www.kayrros.com/ (though they only use public satellite data, but they have their own algorithms to analyze it) This is an interesting situation
488.
by hannob 5y ago
LO has a bugbounty now, this might have the sideeffect of improving the situation somewhat in regards to random crashes. A crash is after all often an indication of a memory corruption.
489.
The D-Health Trial: a RCT of the effect of Vitamin D on mortality(sciencedirect.com)
5 points by hannob 5y ago|0 comments
490.
by hannob 5y ago
I know what the RFCs say. RFC 7301 also says: "In the event that the server supports no protocols that the client advertises, then the server SHALL respond with a fatal "no_application_protocol" alert." It's not wha
491.
by hannob 5y ago
> The security of TLS-ALPN-01 relies on TLS implementations rejecting a connection if an unknown ALPN is present. I hope it does not, because the majority of servers don't reject unknown ALPNs. (See: ALPACA attack)
492.
by hannob 5y ago
Can anyone make sense of what they're trying to tell there? They found some issue ("irregularities") and made 2 changes, but the changes are merely restricting the TLS version to 1.2 and deprecating an old OID identifier. Whi
493.
by hannob 5y ago
They made the same mistake with the SNI deprecation and got plenty of feedback about it... It's disappointing that they haven't learned from this.
494.
by hannob 5y ago
Unfortunately that's not the case. Electrolyseurs are expensive (though hopes are they're gonna get cheaper quickly, as there's a lot of investment in this sector right now). The economic balance of running an electrolyseur o
495.
by hannob 5y ago
> Replacing the hydrogen source at similar scales with electrolysis is plausible with base load power generation. There is no need to tie this to base load power generation. In fact, quite the opposite: A lot of the electrolysis projects
496.
by hannob 5y ago
These badges are kinda controversial. The message they send out is "we give you an extra goodie if you do proper science, because we don't expect that to be the default". Thus badges can become a kinda excuse for not fixing s
497.
by hannob 5y ago
I some sense the way you phrase your question shows how broken incentives in science are. The obvious answer for science is: publish. The goal of science should be to make it easy for others to reproduce your work. Not to make it theoretica
498.
by hannob 5y ago
No, it's a classic nocebo. There recently was a bit of a scandal in Germany because for years a major government authority has reported levels of "infrasound" from wind turbines far above what was physically plausible. A lot
499.
by hannob 5y ago
Pumped water only works if you have the right conditions. I.e. you need a certain altitude difference and enough space to have an upper and a lower water storage facility. Pumped water storage is very efficient and an established technology
500.
by hannob 5y ago
Interesting. The German energy company RWE has announced a while ago that they want to build a compressed air storage facility. However the project went nowhere and was silently buried at some point.
501.
by hannob 5y ago
This is a short-term development over a couple of months. You will always have ups and downs of all sources of energy and if you look into a short amount of time you can find any energy source growing or declining to support your argument.
502.
by hannob 5y ago
The renewables buildout was always tightly coupled with the nuclear phaseout in the political discourse. The idea that you could've kept nuclear, still have the renewables buildout and close coal early wasn't a political position
503.
by hannob 5y ago
> It's absolutely insane they want to shut down Nuclear and replace it with fossil fueled plants. That's not what's happening... Nuclear has been mostly replaced with renewables, while fossil fuel generation has been in sl
504.
by hannob 5y ago
> My take from reading that is in 2016 there was practical collision attacks demonstrated No such thing happened. You're likely referring to this paper quoted in Wikipedia: https://eprint.iacr.org/2016/374.pdf
505.
by hannob 5y ago
The Wikipedia link is very reassuring regarding the security of SHA256. All attacks are very far away from going anywhere close to attacking full SHA256 and no major progress has been made lately. The password hashing remark is correct, but
506.
by hannob 5y ago
Computers can only become faster within the limits of what humans are able to build and what physics allows. You're not gonna break SHA256 with faster computers.
507.
by hannob 5y ago
There's no indication whatsoever of this happening. In the time since SHA1 came under attack, a lot more research has happened on hash function security. If this has shown anything, it's that SHA256 is more secure than people used
508.
by hannob 5y ago
You're proposing to add extra complexity for some hypothetical scenario that is unlikely to happen. That's a bad tradeoff.
509.
by hannob 5y ago
There are already quite substantial emissions when turning oil into plastics and other products. Steam crackers are among the biggest industrial carbon sources. But that's not all: The common end of life processing of most plastics the
510.
by hannob 5y ago
Honestly please stop citing more than a decade old data on renewable energy. It's a highly dynamic sector, and data from the stone age of renewables is completely irrelevant for the discussion.

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