I know next to nothing about widevine decryption so forgive my ignorance - I was wondering if I download protected files now and get a widevine key later from another device, would I be able to decrypt the file with that key? or must the decryption be done with the same key/device that was used to download the file?

  • Samir Boulema
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    1 year ago

    That would work. For example I download on my laptop but decrypt using a key/cdm from my tablet.

    • Wolverine6154@lemmy.dbzer0.comOP
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      1 year ago

      Awesome - So is there anything I need to make note of when downloading or can I just download everything and figure out what I need for decryption later?

      • Samir Boulema
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        1 year ago

        I download audio and video to seperate files, decrypt the files and then remux together…

    • smpl@discuss.tchncs.de
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      1 year ago

      What is the reason everyone is using cdm extracted from an android device, when a webbrowser also has a cdm?

      • Samir Boulema
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        1 year ago

        During cdm dumping the functions within are hooked, so while decrypting video, the private key can be extracted.

        On Android this is easiest because automatic scripts exist and you can rather easily get root access.

          • Samir Boulema
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            1 year ago

            Method should still work for L3 decryption. L1 decryption is hardware based instead of software based and afaik not possible to crack yet.

              • Samir Boulema
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                1 year ago

                Yes. Depends on the platform. For example with Netflix L1 is required for full HD, L3 will only give you access to SD content.