mrb

68 ms·

781.
by mrb 7y ago
« Presumably he/she/they won't respond and I'll get a million bitcoin » Well, presumably Satoshi intended to abandon his keys, therefore they wouldn't have used the scheme in the first place. In general I think th
782.
by mrb 7y ago
Yup, jrpt already mentioned it. This is called Shamir's Secret Sharing Scheme. There is a handy CLI tool implementing it: http://point-at-infinity.org/ssss/ This is what's Satoshi's treasure hunt uses (h
783.
by mrb 7y ago
Whoa, downvoted to minus 4. No idea why. In my 9 years of HN, this is my worst downvoted comment. Maybe people thought I was being off-topic? Let me clarify a bit for the public here why the comment is relevant: in the crypto mining communi
784.
by mrb 7y ago
Ohh I see where this is going qdot_me — would love to be able to hook up a GPU to a RPi4 to crypto-mine. So useful for so many applications ! I will seriously fund you if you can make this happen, hit me up by email. My contact info is on z
785.
by mrb 7y ago
« somebody makes a car that can run the AC without running/draining the battery while it's parked » Temperatures could be reduced significantly with a car modification that uses very little energy: a small fan to circulate and rep
786.
What Is LibreDrive?(makemkv.com)
2 points by mrb 7y ago|0 comments
787.
by mrb 7y ago
HN should add the CSS rule "word-wrap:break-word". In fact this rule should almost always be the default for text that might contain excessively long words (such as user-submitted text on forums).
788.
by mrb 7y ago
This was expected because the 3900X is optimized for fewer faster cores (12 at 3.8GHz) while the 9980XE is optimized for more slower cores (18 at 3.0GHz.) A better and far more impressive comparison would be the 3950X vs 9980XE which have c
789.
by mrb 7y ago
Calling Geekbench a "single benchmark" is misleading because it runs 25 different types of workloads. So AMD doing well here means it does well compared to Intel in 25 different areas when they are all averaged: • Cryptography
790.
by mrb 7y ago
Wow, DisplayPort 2.0 offers literally twice the bandwidth of the latest HDMI spec: HDMI 2.1: 16 Gbit/s per pin, 3 pins total, less efficient 8b-10b encoding: 16×3×8/10 = 38.4 Gbit/s DP 2.0: 20 Gbit/s per pin, 4 pins to
791.
by mrb 7y ago
The USB-C connector physically supports 20 Gbit/s per pin in the USB4 spec (4 pins total: 2 rx + 2 tx, that's why we say it's "40 Gbit/s" per direction). DisplayPort configures all 4 pins as tx, so as expected
792.
by mrb 7y ago
I don't know, sorry. I'm just repeating what I heard from my wife. I will ask her.
793.
by mrb 7y ago
The Associate Editor of Science who rejected this paper when it was submitted happens to be my wife's friend. They have been having long discussions about this issue. My understanding is that although it's a valid study, it just d
794.
by mrb 7y ago
Since 2000, AMD has often beaten Intel on multi-threaded workloads, but never single-threaded (at comparable clocks). This bench shows AMD beating Intel on both ! That's what's incredibly notable here. The last time it happen
795.
by mrb 7y ago
Mining farms are by nature located in areas with cheap electricity, ie. where supply exceeds demand. So it isn't taking away energy from other consumers. For example: https://news.ycombinator.com/item?id=20194135
796.
by mrb 7y ago
Consider this: in Sichuan and Yunnan, the two most hydro-rich provinces of China, despite the high concentration of miners over there due to cheap electricity, there is such an surplus of electricity that they abandon over a hundred TWh of
797.
by mrb 7y ago
Here is the link to the original study: https://www.cell.com/joule/fulltext/S2542-4351(19)30255-7 I was part of the peer-review process on this study. High quality research, although they made a last minute edit
798.
by mrb 7y ago
Wait a minute. 5 lines of code were missing in the app, causing users to be refunded. So does this mean a malicious user could decompile the app, remove this code, recompile, and get these auto refunds? This seems a way easier mechanism to
799.
by mrb 7y ago
While AMD claim it can be overclocked to 4200 or 5133, it doesn't invalidate my claim that officially it is spec'd for DDR4-3200 according to the product page: https://www.amd.com/en/products/cpu/amd
800.
by mrb 7y ago
The old Threadripper 2950X can get up to 46908 with a little bit of memory overclocking, here it is with DDR4 at 1600 Mhz, a modest +9% over stock at 1466 Mhz: http://browser.geekbench.com/v4/cpu/13400527 This Ryz
801.
by mrb 7y ago
Surprisingly no one noticed or reported that the memory is heavily overclocked by +29% in this specific benchmark. Here is the direct link to the detailed results: http://browser.geekbench.com/v4/cpu/13495867 Of
802.
by mrb 7y ago
Cryptocurrency wallets use the BIP32 scheme which provides an even neater ability: from a root public key alone you can generate a series of children public keys, no private keys are involved in the calculation. (And whoever posses the root
803.
by mrb 7y ago
Correct, reverse engineering the Find My protocol or intercepting & modifying the location API should let any half-competent hacker send bogus encrypted locations to Apple's database. What's the point though? You are just hamp
804.
by mrb 7y ago
I'm sure it's an oversimplification of the description of the protocol. For example Apple could use a "base private key" that's just a seed fed to a CSPRNG to generate a series of EC private keys. The client can the
805.
by mrb 7y ago
I love that TC chose a picture of "fc452bd5ea@privaterelay.appleid.com" to illustrate the article. When was the last time you saw a service that could be described by a single "word"?
806.
by mrb 7y ago
" What on earth are people purchasing, that the AVERAGE price is a low-to-mid range Mercedes? " I think that's a classic median vs average situation. The median purchase price is probably a lot lower than $37500, while the
807.
by mrb 7y ago
Nest thermostats can function without Internet. You can walk up to it and adjust the temperature just like any old thermostat.
808.
by mrb 7y ago
My whole house is covered by a Nest Secure alarm system. At the moment my Nest Guard is telling me "it's offline". But if someone breaks in the house, the alarm will still ring in the house, however I believe I won't be
809.
by mrb 7y ago
It was broken: https://twitter.com/David3141593/status/1080606827384131590 But now we are getting kinda off topic which is that Widevine DRM does work with Chromium.
810.
by mrb 7y ago
You don't "build" Widevine. Google distributes a binary (libwidevinecdm.so) which implements a standard API that works with both Chrome and Chromium. The "master" DRM secret key is obfuscated and distributed in libw

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