this post was submitted on 21 Oct 2024
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No Stupid Questions

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Are they breaking Widevine? Are they circumventing it? If the end result is an analog audio signal and (a ton of) RBG on/off signals - why can't I as a normal consumer capture it using some store bought gyzmo?

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[–] lung 37 points 2 months ago (12 children)

Basically, media cannot truly be DRM because: (1) it ~has to be converted into data that screens and speakers can display (2) ultimately if it's fetching widevine encryption keys, those keys are somewhere in your device and can be retrieved

So yes, you can do it. A "capture card" is such a "gyzmo" — but often, you can just rip using software, i.e. record the decoded stream

[–] [email protected] 28 points 2 months ago (10 children)

To put it another way:

  • If you want to see something it has to be clear (unencrypted)
  • If you want to see something on your computer it has to be on your computer
  • You can control your own computer

Therefore, any media that is viewed on your computer is clear, on your computer, in a realm that you control.

This is also why ad blockers work. You can send me ads, or requests to fetch ads and my computer just ignores them.

Companies will never be able to stop this, cause at some point you can always just intercept the data feed at a hardware level and reconstruct the stream.

[–] vala 13 points 2 months ago (2 children)

Companies will never be able to stop this,

If they have their way they will. All the tech bros are pushing for trusted computing platforms.

Imagine a world where most/all computers are as locked down as an iPad. That's what they seem to want.

[–] Takumidesh 5 points 2 months ago

TPM isn't inherently bad, it's just a way to cryptographically store keys. TPM overall is great as it gives you a very secure way to store things like encryption keys.

You also don't need TPM to lock down a system. Locked bootloaders have existed for decades and platforms have historically rolled their own encryption modules as they wanted, like your ipad example, or any video game console in the last 20 years, or most mobile phones, etc.

The 'knows enough to be dangerous' crowd has been fearmongering about tpm since it's been introduced, it isn't some magic bullet for vendor locking, since vendor locking is already achieved.

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