NEWS: Has 4K Ultra HD Blu-ray Disc been cracked?

Discussion in 'Video Streaming Boxes & Services' started by hodg100, Oct 4, 2017.


    1. hodg100

      hodg100
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    2. shotokan101

      shotokan101
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    3. wiz

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      When MakeMKV can handle it then I'll start buying
       
    4. HugoFJH

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      Maybe its me, but I find it interesting that the drives capable of being used currently to decrypt UHD disks are standard BR drives.......
      200 euors is too much for my pocket - but once MakeMKV are able to do the same thing I hope that will come down considerably
      Also a bit of a pity its only capable on Intel hardware, was really looking into investing in Threadripper (intel reference might just be for the initial part, rather than ripping but will keep a close look at developments anyway)
       
    5. Jackass

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      Does it record HDR and can a Windows 10 pre Kaby lake PC output 4k HDR?
       
    6. Captain Ron

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      Been following developments on this avidly. Seems that decryption and rip is possible as long as the PC has one of the supported drives. No other requirements. Once the file is decrypted then none of the SGX requirements that are mandatory for physical 4K disc playback are needed. As long as the PC has a UHD display and has the necessary grunt to playback 4K video at up to 60fps then you are good to go. I too do not trust the software source though. I will wait until the method is understood and appears in DVDFab, MakeMKV or AnyDVD.
       
    7. boyarin

      boyarin
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      Some of cracked copies start appearing in web. And they are not captures because of too high video bitrate.
      Curious to make full analysis between friend`s UHD disk and my downloaded copy
       
    8. shotokan101

      shotokan101
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      Probably not a very accurate comparison - after all you will only be using one eye.... ;)
       
    9. plum23

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      Yes, the rips are identical to what's on the disc.
       
    10. Captain Ron

      Captain Ron
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      So the question now is do we need to be looking at Kaby Lake SGX equipped machines so that we can possibly look at a method whereby we can extract keys from discs locally or are we looking at something that relies on a remote database where the cracked keys are held and downloaded/uploaded from/to so in theory all we'd need to make the backup is any PC with a suitable optical drive.

      If the Kaby Lake SGX timing vulnerability can be utilised to get UHD disc AACS2.0 keys then one can imagine a version of AnyDVD or similar that checks what your hardware is capable of and then sets you up as either a key extractor/key uploader/key downloader/decrypter or if you only have the optical drive then as a key downloader/decrypter only.
       
      Last edited: Oct 11, 2017
    11. plum23

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      It's the latter. Wonder if they've actually broken the encryption, or they've done what their fellow Russians did to "break" DCP encrytion by stealing the keys.
       
    12. 1080 jawbreaker

      1080 jawbreaker
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      There will probably be a version eventually that can rip discs locally if you have hardware inplace but if you don't then you will have to rely on the software fetching the decryption key.
       
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    13. Captain Ron

      Captain Ron
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      Correct me if I am wrong but isn't bluray decryption similar from an end user POV? The keys are held on a server and we decrypt by retrieving the keys. How the keys are got is not really important as long as we have a reliable source to retrieve them from. Isn't this what happened with AnyDVD? Didn't the old Slyoft version have it's key access somehow blocked so that it could only decrypt discs you already had retrieved keys for and this necessitated getting the Redfox version so that key retrieval could be resumed?
       
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    14. dazm41

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      With the amount of 4k HDR ultra disks hitting the net someone somewhere is very good at it ,how there doing who knows .
       
    15. plum23

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      Yes for Redfox. It's also possible to decrypt locally when playing a disc like Kodi used to do with a keyfile list. Or for making a full disc image Makemkv can work offline. (Makemkv just looks for a update to a file that gets round the BD+ issue.)

      More like someone did a runner with the money and that's the story Redfox span to get people to pay again? Slysoft's player keys couldn't be blocked as they (very probably) worked out how the keys were being generated, and so had every key.

      Either way it makes me rather twitchy about handing over money to some unknown organisation for deuhd.
       
    16. Captain Ron

      Captain Ron
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      Some are theorising that the people behind DeUHD are using a a vulnerability in the Kaby Lake cpu line to extract keys from the protected SGX enclave. Extracting RSA keys from this has been demonstrated by some clever guys in Australia a while back but I am not convinced this is applicable to UHD disc keys. The reason I am yet to be convinced is that the Redfox / MakeMKV / DVDFab people surely would've been all over that discovery to see if it could be utilised but nothing has been forthcoming. Here's the original discovery article. Boffins show Intel's SGX can leak crypto keys
       
      Last edited: Oct 26, 2017
    17. DracUK

      DracUK
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    18. wiz

      wiz
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      It's not wearing a condom:D;)
       
    19. shotokan101

      shotokan101
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      I'm guessing that it's possibly something that they have to say for Legal reasons..... ?
       
    20. B17NNS

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      Am I right in thinking this is now possible with makemkv?

      Anybody know of an external drive that will work out of the box with my Mac?
       
    21. Manik

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      Yes, ripping UHD works with MakeMKV. Check their forums for more info and recommended drives.
       
    22. B17NNS

      B17NNS
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    23. DracUK

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      Yes Im using the LG one with 2018 iMac,works great,bought it a couple of weeks ago from Zippytom.co.uk (£106) but not now listed on their site.I was fortunate in that it came with the correct needed firmware.(although they can be reflashed back if needed)

      That other Asus one youve listed WONT WORK its a Pioneer drive inside it.
       
    24. B17NNS

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      Excellent, thanks. What version of firmware are you running that works?
       
    25. DracUK

      DracUK
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    26. B17NNS

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      Thanks, I've asked the Amazon seller if he knows what version it ships with so hopefully he'll come back to me.

      Ideally I'm looking for an all in one external.
       
    27. DracUK

      DracUK
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      He would have to open the box and its printed on a label under the enclosure
      Good Luck
       
    28. B17NNS

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      Much appreciated, thanks Drac.
       
    29. B17NNS

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      Bugger, the Amazon one is 1.02.
       
    30. steelman1991

      steelman1991
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      I'm not certain that the firmware on the Asus drives are a problem - see the second last paragraph on the opening post on MakeMKV forums

      www.makemkv.com • View topic - UHD drives

      EDIT - ignore that comment - I see you were talking about the LG not the ASUS which i assume you have discarded on the basis that DracUK has advised it is actually a Pioneer.
       
      Last edited: Apr 4, 2018

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