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Thread: DRM with a CDN

  1. #1
    Join Date
    Nov 2011
    Posts
    3

    Default DRM with a CDN

    I'm wondering - in a "per-user" on-the-fly encryption scenario, would there be no use in edges caching the encrypted fragments; they're not going to be useful to any users except the one intended recipient right? Am I missing something here, are there some other recommended practices?
    Cheers
    Nick

  2. #2

    Default

    If you are doing unique keys per-session then you are correct. Caching will have no benefit. If you are doing per-file, per-stream encryption then caching will be effective.

    Charlie

  3. #3
    Join Date
    Sep 2011
    Posts
    14

    Default

    Hi,

    how to set up a per-file encryption with BuyDRM AddOn?
    We have a 10,000+ video library so it's a little hard to create buydrmstreammap.txt file containing all the keys...

    Thanks for our help.

    Regards,
    Larc

  4. #4
    Join Date
    Dec 2007
    Posts
    21,962

    Default

    Larc,

    There is nothing built-in to Wowza that will help. If the data is in a structured file or database you should be able to write a script to create it.

    Richard

  5. #5
    Join Date
    Sep 2011
    Posts
    14

    Default

    OK thanks,

    I created my own class implementing IBuyDRMStreamNameToKeyInfo to do the job, works perfectly !

    Larc

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