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Originally Posted by Ralph Sir Edward
That's my point. If someone posts an 8 GB file labeled "My Hawaii Vacation in HD" and it is heavily encrypted, how will anybody the uploader hasn't authorized know whats in the file? It could be the latest movie in the Cinema, or an 8 GB library. Or who knows what?
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If done correctly, they wouldn't be able to.
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If it is so simple all you do is punch the upload button and save the returning key file, I think this will remove the "risk" from small scale piracy over the internet, increasing the reach (in space, if not in quantity) of the "pass the USB file" type of piracy.
But I could be wrong.
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I think you're spot on.
Whether the service returns a key that the user then has to find a way to distribute to all the people they want to allow to decode the file, or whether it uses a public key encryption which can avoid that step, I'm not sure. Either way, the host won't know what the file is unless someone provides them with a decryption key. Only then could they decode the file and know it matches files they've got take-down requests for.