The much maligned “Trusted Computing” idea requires that the party you are supposed to trust deserves to be trusted, and Google is DEFINITELY NOT worthy of being trusted, this is a naked power grab to destroy the open web for Google’s ad profits no matter the consequences, this would put heavy surveillance in Google’s hands, this would eliminate ad-blocking, this would break any and all accessibility features, this would obliterate any competing platform, this is very much opposed to what the web is.

  •  jarfil   ( @jarfil@beehaw.org ) 
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    1141 year ago

    THIS IS NOT (just) ABOUT GOOGLE

    Currently, attestation and “trusted computing” are already a thing, the main “sources of trust” are:

    • Microsoft
    • Apple
    • Smartphone manufacturers
    • Google
    • Third party attestators

    This is already going on, you need a Microsoft signed stub to boot anything other than Windows on a PC, you need Apple’s blessing to boot anything on a Mac, your smartphone manufacturer decides whether you can unlock it and lose attestation, all of Microsoft, Apple and Google run app attestation through their app stores, several governments and companies run attestation software on their company hardware, and so on.

    This is the next logical step, to add “web app” attestation, since the previous ones had barely any pushback, and even fanboys of walled gardens cheering them up.

    PS: Somewhat ironically, Google’s Play Store attestation is one of the weaker ones, just look at Apple’s and the list of stuff they collect from the user’s device to “attest” it for any app.

    •  beefcat   ( @beefcat@beehaw.org ) 
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      1 year ago

      you need a Microsoft signed stub to boot anything other than Windows on a PC

      Not necessarily, most motherboards and laptops (at least every single one I’ve ever owned) allow users to enroll their own Secure Boot keys and maintain an entirely non-Microsoft chain of trust. You can also disable secure boot entirely.

      Major distros like Ubuntu and Fedora started shipping with Microsoft-signed boot shims as a matter of convenience, not necessity.

      Secure Boot itself is not some nefarious mechanism, it is a component of the open UEFI standard. Where Microsoft comes in to play is the fact that most PC vendors are going to pre-enroll Microsoft keys because they are all shipping computers with Windows, and Microsoft wants Secure Boot enabled by default on machines shipping with with their operating system.

      • Windows 11 is saying you’re required to have tpm 2.0 enabled in your bios in order to upgrade. Didn’t know what it was on my self built computer until recently when windows said my system wasn’t compatible to upgrade.

        •  Hexorg   ( @Hexorg@beehaw.org ) 
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          41 year ago

          Tpm modules are pretty good. And you can buy them separately like another card. Motherboards usually have a slot for them. They are tiny like usb drives. They essentially are usb derives but for your passwords and keys. You can even configure Firefox to store your passwords in tpm

        • TPM and SecureBoot are separate UEFI features. Windows 11 requires TPM 2.0. If your system meets the CPU requirements, then it should support this without needing to install a hardware TPM dongle. However, until recently, many vendors turned had this feature turned off for some reason.

          Where some confusion comes in is another Windows 11 requirement, that machines be SecureBoot capable. What this actually means in practice is that your system needs to be configured to boot in UEFI mode rather than CSM (“Legacy BIOS”) mode.

      •  Gsus4   ( @Gsus4@lemmy.one ) 
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        1 year ago

        You can’t disable secure boot if you want to use your Nvidia GPU :( though. [edit2: turns out this is a linux mint thing, not the case in Debian or Fedora]

        Edit: fine, there may be workarounds and for other distros everything is awesome, but in mint and possibly Ubuntu and Debian for a laptop 2022 RTX3060 you need to set up your MOK keys in secure mode to be able to install the Nvidia drivers, outside secure mode the GPU is simply locked. I wasn’t even complaining, there is a way to get it working, so that’s fine by me. No need to tell me that I was imagining things.

            • What does that even mean?! Yes it works for me. That’s the whole bloody point of saying it. Someone was saying “it won’t work for anyone” and I was saying “well it works for me”.

              “We can’t land at the moon!” “Eh, we already have” “‘Works for me’, so that’s not really valid”

              Head_scratch.gif

          •  Gsus4   ( @Gsus4@lemmy.one ) 
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            1 year ago

            Me installing Linux Mint on a 2022 laptop with a Nvidia GPU (had windows 11 preinstalled, this was an alongside install). I disabled secure boot at first, but still had to go all the way back and set up my MOK keys and turn on secure boot properly with another password to unlock the GPU.

                •  wim   ( @wim@lemmy.sdf.org ) 
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                  81 year ago

                  Literally buy anything but Nvidia. Intel, AMD have upstream drivers that work regardless of secure boot. Various ARM platforms also have free drivers.

                  It used to be that there waa only bad choices, now there really is only one bad choice left.

                  Intel Arc still has some teething problems, particularly with power management on laptops, but AMD has been smooth sailing for almost a decade now.

                •  wim   ( @wim@lemmy.sdf.org ) 
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                  21 year ago

                  For many reasons. Nvidia requiring secure boot in this case, which is not available for all distros or kernels on all computers.

                  The other is requiring a workable kernel module and user space component from Nvidia, which means that as soon as Nvidia deprecates your hardware, you’re stuck with legacy drivers, legacy kernels, or both.

                  Nvidia also has it’s own separate userspace stack, meaning it doesn’t integrate with the whole DRM & Mesa stack everyone else uses. For the longest time that meant no Wayland support, and it still means you’re limited to Gnome only on wayland when using Nvidia AFAIK.

                  Another issue is switcheable graphics. Since systems with switchable graphics typically combine a Mesa based driver stack (aka everyone but Nvidia, but typically this would be AMD or Intel integrated graphics) with an Nvidia one, it involves swapping out the entire library chain (OpenGL or Vulkan or whatever libraries). This is typically done by using ugly hacks (wrapper scripts using LD_PRELOAD for example) and are prone to failure. Symptoms can be anything as mild as everything running on the integrated graphics, the discrete graphics never sleeping causing poor battery life or high power consumption, to booting to a black screen all or some of the time.

                  If these things don’t bother you or you have no idea what these things mean, or you don’t care about them or your hardware lasting more than 3-5y then it probably isn’t a big deal to you. But none of the above exist when using Intel, AMD or a mix of those two.

                  In my experience the past twenty years, proprietary drivers are the root cause of I would say 90% of my issues using Linux.

            • Never heard of this before and couldn’t find anything about secure boot being required to be enabled to use the Nvidia drivers with Linux.

              But since you used dual boot you need to have secure boot enabled anyway, because win 11 would not work without it, would it?

        •  beefcat   ( @beefcat@beehaw.org ) 
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          1 year ago

          My experience is that Nvidia plays nicer without secure boot. Getting Fedora up and running with the proprietary Nvidia drivers and fully working SecureBoot was quite a headache, whereas everything just worked out of the box when I disabled it.

          But this is very much an Nvidia problem and not a SecureBoot problem. There is a reason basically no-one else provides their drivers as one-size-fits-all binary kernel modules.

    • you need a Microsoft signed stub to boot anything other than Windows on a PC

      False. Every PC I’ve had has allowed Secure Boot to be turned off, and some of them allow me to add another trusted certificate as well.

      you need Apple’s blessing to boot anything on a Mac

      False. The Mac boot process is completely unlocked, at least on Intel Macs.

      your smartphone manufacturer decides whether you can unlock it and lose attestation

      My Pixel 6 allows me to unlock the boot loader at any time.

      Attestation exists, unfortunately, but it’s not nearly as pervasive as you seem to think.

      This is the next logical step, to add “web app” attestation, since the previous ones had barely any pushback

      Uh, there was huge pushback. That’s why even a Microsoft Surface won’t stop you from installing Linux.

      • The Mac boot process is completely unlocked, at least on Intel Macs.

        On Modern Macs, the process is somewhat convoluted, but you are able to boot into a custom compiled boot loader / operating system while secure boot is enabled. It just needs a few minor hoops to sign the boot loader - steps that would be difficult to social engineer around but perfectly reasonable to do them intentionally if installing an alternate operating system is your thing.

        iPhone is, of course, a different story. Hopefully that changes some day. The CPU and boot process is the same as a Mac, so there’s no reason it couldn’t be unlocked. Might require government intervention though.

    •  Ech   ( @ech@lemm.ee ) 
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      141 year ago

      you need a Microsoft signed stub to boot anything other than Windows on a PC

      Can you expand on this? Maybe I’m just misunderstanding you, but a “pc” is not a Windows made machine. It is a collection of disparate computer parts made by different companies with no requirement to run Windows as the exclusive OS once put together.

      Even on a Windows OS, I can run any program I want (that’s made to operate with Windows). I may get a warning if it’s not a “known” developer, but I can still run it. Did I miss a big update to how 11 works with unknown software or something?

    •  zzz   ( @zzz@feddit.de ) 
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      41 year ago

      While I agree in general, and the overall sentiment/direction here to steer towards (morally) is clear… let’s stick to facts only.

      you need Apple’s blessing to boot anything on a Mac

      Bootloader is unlocked and alternative OS exist. Or what else did you mean by that?

        •  zzz   ( @zzz@feddit.de ) 
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          1 year ago

          Your understanding is incorrect, I think.

          Apple specifically chose to leave it (or some part of the chain, I don’t actually know, not an expert lol) open, otherwise, a project like Asahi Linux would not have had a chance from the getgo.

          I might try to read up on it when I find the time whether they still have to rely on something signed by Apple before being able to take over in the boot process.

          •  jarfil   ( @jarfil@beehaw.org ) 
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            1 year ago

            I see.

            I was going on the fact that the T2 has a “No Security” option for its Secure Boot config, while according to Apple Support the Apple Silicon ones (I don’t have one) only offer “Full” or “Reduced” security, which would still require signing: Change security settings on the startup disk of a Mac with Apple silicon

            Dunno how the Asahi folks are planning on doing it, but they do indeed say there is no bootlock 🤔

            Update: according to the Asahi docs, I seem to understand that Apple Silicon devices allow creating some sort of “OS containers” that can be chosen to boot from separately from the Mac OS one, and in such a custom container the security can be set to “permissive” limited to that container: https://github.com/AsahiLinux/docs/wiki/Open-OS-Ecosystem-on-Apple-Silicon-Macs Interesting.

            •  zzz   ( @zzz@feddit.de ) 
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              1 year ago

              Interesting.

              Yep, that’s a fitting term. You definitely still have to rely on macOS (and keep a copy of it around, e.g. for firmware upgrades, which of course basically only come bundled with macOS versions), but other than that, you can do more or less what you want to – as long as you’re outside of it.

              I quite like this idea though if I’m being honest, normie users get all the hardened security from the regular boot chain without experiencing basically any difference/downsides, while hardware enthusiasts and (Linux) tinkerers still have options open (well, options that you can get if you have a new chip on a rarer architecture with previously no third party OS).