4 ms·

If you are really interested in scraping a copy, the HDCP keys were leaked at some point and you can buy "HDMI splitters <wink>" for ~$30 which will remove the

If you are really interested in scraping a copy, the HDCP keys were leaked at some point and you can buy "HDMI splitters <wink>" for ~$30 which will remove the encryption. Now trivially bypassed, and a pain in the butt for everyone else.

bubblethink 4y ago
That was for an old version of HDCP up to 1080p, right ? Not to mention, capping and transcoding is tedious and will alter the quality. I doubt if anyone still does it as there seem to be better exploits for the determined.
- realusername 4y ago
  Due to the amount of very high quality files you have on torrenting sites, L1 is being broken already indeed, they just don't publish the methods and devices they are using for that so they don't get patched.
  - bbbbb5 4y ago
    Yes, all the files you see on torrent sites are decrypted using L1 keys extracted from a nvidia shield using a TrustZone exploit. > they just don't publish the methods and devices they are using for that so they don't get patched. Well not exactly, it's hard to patch this when the keys leak from a very popular device.
- madars 4y ago
  There are splitters that can do 4K 60Hz HDCP 2.2. You had to really search for them because AliExpress used to remove listings that mentioned this feature explicitly. HDFury devices will do HDCP 2.3 -> 1.4 conversion (at which point you can just use a HDCP 1.4 splitter/stripper).
- deleted 4y ago
  [deleted]
everdrive 4y ago
Stupid question: is it also not possible to simply use VGA instead?
- ddtaylor 4y ago
  VGA won't create that "full chain of trust" parent is talking about. The GPU essentially says if it's outputting to an HDCP (encrypted) output and if so is expecting encrypted input. As an example if you use an HDMI -> DVI adapter or similar you'll get a scrambled-ish looking picture which is essentially you viewing the ciphertext picture.
bbbbb5 4y ago
This is pretty much inherently super lossy, so not a good bypass. You need to decrypt the actual WV stream for a good copy.
- tgsovlerkhgsel 4y ago
  Wouldn't the only loss be from the re-encoding, which many webrips do anyways?
  - bbbbb5 4y ago
    > Wouldn't the only loss be from the re-encoding Which is pretty dramatic, assuming you don't want absurdly large files. Where do you see webrips in 2022? Looking on BTN, I only see webrips for public broadcast content that literally nobody cares about. Everything else is decrypted streams (WEB-DL). The big p2p groups with WV keys are decrypting just about everything, scene groups desperate for a reason to exist after getting utterly outdone by the p2p crowd are releasing webrips of content nobody wants.

bubblethink 4y ago

That was for an old version of HDCP up to 1080p, right ? Not to mention, capping and transcoding is tedious and will alter the quality. I doubt if anyone still does it as there seem to be better exploits for the determined.

realusername 4y ago
Due to the amount of very high quality files you have on torrenting sites, L1 is being broken already indeed, they just don't publish the methods and devices they are using for that so they don't get patched.
- bbbbb5 4y ago
  Yes, all the files you see on torrent sites are decrypted using L1 keys extracted from a nvidia shield using a TrustZone exploit. > they just don't publish the methods and devices they are using for that so they don't get patched. Well not exactly, it's hard to patch this when the keys leak from a very popular device.
madars 4y ago
There are splitters that can do 4K 60Hz HDCP 2.2. You had to really search for them because AliExpress used to remove listings that mentioned this feature explicitly. HDFury devices will do HDCP 2.3 -> 1.4 conversion (at which point you can just use a HDCP 1.4 splitter/stripper).
deleted 4y ago
[deleted]

everdrive 4y ago

Stupid question: is it also not possible to simply use VGA instead?

ddtaylor 4y ago
VGA won't create that "full chain of trust" parent is talking about. The GPU essentially says if it's outputting to an HDCP (encrypted) output and if so is expecting encrypted input. As an example if you use an HDMI -> DVI adapter or similar you'll get a scrambled-ish looking picture which is essentially you viewing the ciphertext picture.

bbbbb5 4y ago

This is pretty much inherently super lossy, so not a good bypass. You need to decrypt the actual WV stream for a good copy.

tgsovlerkhgsel 4y ago
Wouldn't the only loss be from the re-encoding, which many webrips do anyways?
- bbbbb5 4y ago
  > Wouldn't the only loss be from the re-encoding Which is pretty dramatic, assuming you don't want absurdly large files. Where do you see webrips in 2022? Looking on BTN, I only see webrips for public broadcast content that literally nobody cares about. Everything else is decrypted streams (WEB-DL). The big p2p groups with WV keys are decrypting just about everything, scene groups desperate for a reason to exist after getting utterly outdone by the p2p crowd are releasing webrips of content nobody wants.