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Quackles posted:It does? https://www.youtube.com/watch?v=gwf5mAlI7Ug&t=882s
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May 2, 2021 13:42
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that and the differential video are really good
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May 2, 2021 14:00
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Jabor posted:you could probably build a uarch that can reasonably efficiently implement both x86-64 and arm, but you'd have to come at it with that being your design goal, and accept it being somewhat less efficient at each architecture than a dedicated uarch would be. isn't this basically llvm
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May 2, 2021 16:30
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as far as i understand the m1 actually does the harder part of that by supporting x86 memory ordering guarantees and similar details, adding the instruction decoder would not serve much of a purpose when they can do that part in software, but they probably could.
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May 2, 2021 16:41
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rjmccall posted:it is legally unclear whether you can actually enforce ip rights on an isa and god willing we’ll never find out to underscore this, it's so unclear that the likes of intel and amd rely mostly on patenting implementation techniques rather than the isa itself. if you patent all the good ways to implement a particular isa, you own it even if other ip rights don't apply spankmeister posted:Wasn't that already worked out with all the Intel clones back in the 80's? that was mostly intel offensively suing companies they had already licensed to make clones of x86 cpus, and the results didn't create quite the kind of precedent intel wanted see, ibm had insisted that intel permit second-sourcing of their processors in order to win the ibm pc contract. so intel signed a bunch of licensing agreements, handed over design files to the likes of AMD, Intersil, Harris, and many others, and all of them began cranking out fully legal x86 clones later in the 1980s, as pc clones began to spiral out of ibm's control, intel saw their golden opportunity to obtain a monopoly. the lawsuits were classic might-makes-right nonsense, just "we have meaner and nastier lawyers and more money to fight in court until you just let us break your contract" some didn't fold. amd was the most stubborn, and eventually won some key cases in court. the rest settled without creating any precedent on whether isas can be copyrighted or whatever the core problem with treating an isa as IP is that it's a relatively abstract hardware/software interface specification. loosely speaking, copyright can't protect ideas or interfaces. the former was well established in the 1980s, the latter not so much, but today AIUI there is legal precedent for it from the software world, so it'd be extremely dicey to assert copyright on an ISA and if you can't copyright an ISA, what area of IP law would apply?
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May 3, 2021 01:41
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BobHoward posted:the core problem with treating an isa as IP is that it's a relatively abstract hardware/software interface specification. loosely speaking, copyright can't protect ideas or interfaces. the former was well established in the 1980s, the latter not so much, but today AIUI there is legal precedent for it from the software world, so it'd be extremely dicey to assert copyright on an ISA Question for lawyer-adjacent types: Would the recent "APIs are not copyrightable as a matter of law" decision apply to ISAs as well?
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May 3, 2021 03:31
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apis are copyrightable. google’s use of the java api was allowed because of fair use not because the api cannot be copyrighted.
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May 3, 2021 03:45
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yeah the ruling was objectively wrong as it wasnt even remotely fair use, but given the same interpretation for ISA licensing it means creating your own implementation that is different from the reference implementation would be fair use. the specific reference implementation of an ISA is copyrightable, but the ruling says you cant prevent anyone from making a compatible implementation as long as its different. it makes the unanswered question of whether the ISA itself is copyrightable totally moot
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May 3, 2021 03:56
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Mr. Nice! posted:apis are copyrightable. google’s use of the java api was allowed because of fair use not because the api cannot be copyrighted. they did not rule one way or the other as to if apis were copyrightable they said it didn't matter because google's use was fair use if it was and that way they only had to rule on one thing
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May 3, 2021 04:12
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duz posted:they did not rule one way or the other as to if apis were copyrightable So does that mean that reimplementing an ISA would be fair use?
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May 3, 2021 04:17
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dunno! thats the fun of how they worded the ruling!
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May 3, 2021 04:19
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Quackles posted:So does that mean that reimplementing an ISA would be fair use?
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May 3, 2021 04:19
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Quackles posted:So does that mean that reimplementing an ISA would be fair use? yes
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May 3, 2021 04:33
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Quackles posted:So does that mean that reimplementing an ISA would be fair use?
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May 3, 2021 08:03
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theres only one way to make sure your API is protected by copyright: https://en.m.wikipedia.org/wiki/Shakespeare_Programming_Language
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May 3, 2021 09:55
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If you don't have the money to fight a battle all the way to the supreme court while not making any money off the product you developed, ISAs developed by megarich companies are in practice copyrightable for now even if it will turn out in the end that they aren't. On the flip side, if you don't have the money to fight a battle all the way to the supreme court, any ISA that you have developed yourself will be in practice not be copyrightable
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May 3, 2021 10:13
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BobHoward posted:to underscore this, it's so unclear that the likes of intel and amd rely mostly on patenting implementation techniques rather than the isa itself. if you patent all the good ways to implement a particular isa, you own it even if other ip rights don't apply among those are several that're important even now can't wait to see x86 somehow get worse by all the clones
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May 3, 2021 10:53
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i was doing devops for a couple years, and i finally like formally learned full stack and react hooks after i got laid off last fall. thinking about maybe becoming the worlds most feared hacker since im so good with apps and infosec is gonna boom in the meantime im doing gigs and htb. i was looking at the signup page the other day, and htb finally got rid of their signup game and they just give you an account now, which is way less cool but way more accessible. infosec in general is about to follow that trend, but i plan to 'stay true to my roots' and wear sunglasses at my workstation and force project managers to call me 'hav0k'
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May 3, 2021 18:41
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bleeding kansas posted:i was doing devops for a couple years, and i finally like formally learned full stack and react hooks after i got laid off last fall. thinking about maybe becoming the worlds most feared hacker since im so good with apps and infosec is gonna boom I always cringed when the internal offensive security team's director used their employee's "callsigns" in an all-hands. Trying desperately to hold onto their "cred".
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May 3, 2021 18:55
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that is my ideal work environment. i would also like to be assigned a k/d ratio based on inscrutable metrics
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May 3, 2021 19:11
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MrQueasy posted:I always cringed when the internal offensive security team's director used their employee's "callsigns" in an all-hands. Trying desperately to hold onto their "cred". that's too amazing. It's like wearing a big sign saying "please please please stuff me in a locker"
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May 3, 2021 19:34
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hey i just read the x86 paper and was hoping for a good breakdown here and rjmccall fuckin’ delivered so another yospos success story. thank u
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May 3, 2021 19:53
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bleeding kansas posted:that is my ideal work environment. i would also like to be assigned a k/d ratio based on inscrutable metrics i think that's just joining the military
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May 3, 2021 20:58
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Shame Boy posted:i think that's just joining the military wear a flight suit so you can sit in a trailer and bomb weddings/water treatment plants
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May 3, 2021 21:11
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i would simply hack my rifle so it never misses, and then force them to engrave 'hav0k pwns' on my pile of medals. but the military doesnt pay for poo poo so
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May 3, 2021 21:22
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bleeding kansas posted:i would simply hack my rifle so it never misses, That is literally the premise behind some versions of Shadowrun. Works great until someone hacks you...
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May 3, 2021 21:29
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I'm currently having an argument with Conservatives at a client about whether they REALLY need to comply with PCI DSS and whether it's REALLY not okay to send credit card PANs across the internet in unencrypted Telnet sessions. These people are fully beyond belief. Edit to add content: Here's some good crit of a recent Perlroth piece: https://foreignpolicy.com/2021/05/03/cybersecurity-ignorance-is-dangerous/ Kesper North fucked around with this message at 01:42 on May 4, 2021 |
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May 4, 2021 01:28
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Quackles posted:SolarWinds has renamed itself to... from a couple pages ago but seeing this post has resurfaced memories i'd previously suppressed from when i was once responsible for an n-able monitoring stack. that poo poo was the purest worst garbage i've ever seen, absolutely horrendous.
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May 4, 2021 13:16
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API stands for actually, pretty injectable
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May 4, 2021 14:46
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https://github.com/itm4n/PPLdump complete PPL bypass without a kernel mode driver for dumping lsass oh and its not eligible for bug bounty according to ms lol
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May 5, 2021 01:25
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i wouldn't recommend avast in any case, it likes to sell you as the product https://www.pcmag.com/news/avast-defends-data-harvesting-plans-to-get-users-to-agree-to-it
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May 5, 2021 01:37
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Signal wanted to take out ads on Facebook and Instagram showing just how precisely ad targeting can be focused: Facebook took great offense and canned their ad account.
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May 5, 2021 03:34
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Quackles posted:Signal wanted to take out ads on Facebook and Instagram showing just how precisely ad targeting can be focused: Signal's been on a tear lately
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May 5, 2021 07:03
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Quackles posted:Signal wanted to take out ads on Facebook and Instagram showing just how precisely ad targeting can be focused: Aggressive and snarky blog posts are actually good advertising tbh. They're selling me on it.
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May 5, 2021 07:08
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facebook had to take them down before their algorithm fed them to the wrong people and they got laughed at
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May 5, 2021 07:48
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Quackles posted:Signal wanted to take out ads on Facebook and Instagram showing just how precisely ad targeting can be focused: please buy our targeted ad space! ...no not like that!
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May 5, 2021 08:13
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Quackles posted:Signal wanted to take out ads on Facebook and Instagram showing just how precisely ad targeting can be focused: posting this on facebook lol
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May 5, 2021 13:05
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they should have used things you can actually target on, because it would have been harder for FB to wave it away
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May 5, 2021 14:04
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Subjunctive posted:they should have used things you can actually target on, because it would have been harder for FB to wave it away what makes you think those are not things you can target?
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May 5, 2021 14:07
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ymgve posted:what makes you think those are not things you can target? I’ve seen the targeting interface you use to select ad target groups?
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May 5, 2021 14:08
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