81–90 of 493 posts
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The Playready docs make it clear the implementation is either in TEE or implemented in GPU hardware, and x86 has no TEE, so. You can easily find driver changelogs describing it being enabled for different hardware generations.
> x86 has no TEE Is Intel ME TEE-enough for DRM?
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Microsoft doesn't sell hardware. Why would they be incentivized to make you buy new hardware? Unless you're alleging that their hardware partners pushed for it, in which case there would likely be logs of communications that are pretty illegal.
Microsoft makes Xbox and the Surface. They are one of the largest consumer hardware manufacturers in the space. Anyways Microsoft was clearly very irritated when everyone wanted to stick with Windows 7, perceiving that Windows 8 was worse in every way, and that Windows 10 wasn't a significant enough upgrade to justify the effort especially considering all the added telemetry they added to the product. It's very reaso…
How is restricting which machines can run Windows 11 "forcing an upgrade cycle" on the software? It's clearly doing the opposite, by making Windows 11 upgrades less likely.
The real motivation people have for upgrading to Windows 11 is Windows 10 going out of support. And the EOL date is totally orthogonal to the TPM requirement.
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Especially when you add HDR to the mix, I think it's still extremely difficult to get a high quality screen recording, if only because it's so hard to get the exposure right.
You could record multiple exposures and merge them after the fact (and I agree the result would likely be subpar, but better than it's ever been at any previous point in time)
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> B) How are these DRM schemes actually being defeated? 1. Disable video hardware acceleration in browser (preferably FF) 2. Open OBS studio 3. Record screen while streaming service of your choice is running. Still works in modern OSs like Windows 10. You're technically not circumventing the DRM decryption routines when you do this since the pixels displayed on screen have already been decrypted (just like recording…
That only works with the weaker tiers of DRM which are typically only allowed to stream low resolutions. As mentioned in the OP article, the stronger DRM tiers never make the cleartext visible to software and those are mandatory for high quality streaming. Not to say the stronger tiers never get broken but it's a lot more involved than just recording them with OBS.
Use Microsoft edge for playback (so you get 4K HDR). Stylish as addon to remove any player hud.
Especially useful if you want to legitimately use copyrighted content but obviously can't just use a pirated version.
> GPU vendors have quietly deployed all of this technology Citation or technical details needed. Obviously it "makes sense" that for 4K HD content you "probably" want to offload the decoding into the GPU, but this is the first time I see this mentioned and there are no links to technical details. In contrast, TEE / TrustZone and even the recent AVF with pVM - these are well documented technologies.
Integrated GPUs exist. Wouldn't it make more sense that the "high value" content should not be exposed to any external GPU? Then we can treat those integrated ones as part of the "TEE". That's my speculation, waiting for details.
With a unified memory architecture, is the shared GPU memory inaccessible to the CPU?
> I'm going to be honest here and say that I don't know what Microsoft's actual motivation for requiring a TPM in Windows 11 is. It is quite obvious: to force people to buy a new PC. TPM provides no added security value for the vast majority of users[1] but it is a convenient hardware that has only started to become standard (fTPM) in PCs built in the last ~8 years so it provides an excuse for Microsoft to declare co…
Microsoft doesn't sell hardware. Why would they be incentivized to make you buy new hardware? Unless you're alleging that their hardware partners pushed for it, in which case there would likely be logs of communications that are pretty illegal.
The passkey protocol (i.e. webauthn) has an "attestation object" field which organizations like Microsoft can use to pass extra details about the authenticated users to the authenticating service. Which details will likely depend on that service's relationship with Microsoft. Unlike most channels between these parties, it's expected to be secured via TPM thereby excluding others (e.g. the user, or any pesky researchers) from the conversation.
It's pretty obvious from the recent design choices re: Windows that Microsoft is keen on monetizing user data--and who, in that business, wouldn't like a way to do it exclusively? i.e. to control a channel which neither the user nor your competitors can tamper with.
So they'd be incentivized to make you buy new hardware because new hardware allows them to bind your advertiser id to actual identity much more closely than is possible without that hardware (e.g. via cookies and IP addresses). The sale of details about your actual identity to organizations who only know you by your advertiser id is big business. The TPM helps them protect that business against competitors who don't have such low-level control over your device (Google, Meta, etc).
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“Normies” are never going to care about the stuff the FSF is interested in. I don’t think you can extract the philosophy from the eccentric personalities that created it, they’re one in the same.
If you believe that normies deserve computing freedom (this doesn’t seem to entirely be consensus in the scene), it ought to be a goal to explain the benefits of it in a way that they will understand. Some may still not care, but my experience is that a good part actually does. If nothing else this is good leverage to influence change for one‘s own interest.
That follows a basic pattern for any effective change, normal people pretty much always just whinge and achieve nothing. They're lucky to even be allowed the pittance of political power that is voting, historically speaking.
> GPU vendors have quietly deployed all of this technology Citation or technical details needed. Obviously it "makes sense" that for 4K HD content you "probably" want to offload the decoding into the GPU, but this is the first time I see this mentioned and there are no links to technical details. In contrast, TEE / TrustZone and even the recent AVF with pVM - these are well documented technologies.