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Audio/Video files protection using Nxt?
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Author Topic: Audio/Video files protection using Nxt?  (Read 3080 times)

Eadeqa

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Audio/Video files protection using Nxt?
« on: August 21, 2014, 05:56:59 pm »

Brainstorm

Can Nxt network be used for  audio/video files protection, such that only the buyer (i.e needs password to the Nxt account)  can play the Audio/Video files?  It doesn't have to be 100% secure against all attacks, but should make it difficult for ordinary thieves from sharing the video/audio without revealing the Nxt password used to to buy the Audio/Video file.

Such a system if made could attract a lot of independent mp3/clip sellers.

This doesn't require any change to the core -- it should be encoding scheme for audio/video file that requires a token from the right account every week, for example.


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jl777

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Re: Audio/Video files protection using Nxt?
« Reply #1 on: August 21, 2014, 06:48:40 pm »

Brainstorm

Can Nxt network be used for  audio/video files protection, such that only the buyer (i.e needs password to the Nxt account)  can play the Audio/Video files?  It doesn't have to be 100% secure against all attacks, but should make it difficult for ordinary thieves from sharing the video/audio without revealing the Nxt password used to to buy the Audio/Video file.

Such a system if made could attract a lot of independent mp3/clip sellers.

This doesn't require any change to the core -- it should be encoding scheme for audio/video file that requires a token from the right account every week, for example.
yes possible
the only issue is that a custom encrypted version would need to be made for every purchaser. For mp3 file sizes maybe this is not much of an issue
just need to automate the completion of sale with encryption of the mp3 with buyer's key
then it is only working with that buyer's key, but of course they can pirate it
Now if this file was not actually delivered, but only streamed, then I think that avoids the pirating issue

you have some really cool ideas!
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Eadeqa

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Re: Audio/Video files protection using Nxt?
« Reply #2 on: August 21, 2014, 06:58:01 pm »

just need to automate the completion of sale with encryption of the mp3 with buyer's key
then it is only working with that buyer's key, but of course they can pirate it

Streaming only will make the implementation easy (yes, that is easy solution),  but it should be possible even without streaming. I have seen some WMV files with protection that checks the server (every once in a while?) to see if the file is legal copy. 

What's the name for that protection? I can't remember now.
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jl777

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Re: Audio/Video files protection using Nxt?
« Reply #3 on: August 21, 2014, 07:01:58 pm »

just need to automate the completion of sale with encryption of the mp3 with buyer's key
then it is only working with that buyer's key, but of course they can pirate it

Streaming only will make the implementation easy (yes, that is easy solution),  but it should be possible even without streaming. I have seen some WMV files with protection that checks the server (every once in a while?) to see if the file is legal copy. 

What's the name for that protection? I can't remember now.
some sort of built in realtime DRM?
if this is part of some predefined WMV format, then then nxt side doesnt seem like much work
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toenu

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Re: Audio/Video files protection using Nxt?
« Reply #4 on: August 22, 2014, 04:39:58 pm »

Imho something like this would just end up being an inconvienience to the user, due to need to install software or enter passphrases or jumping through some other hoops.

If I was selling digital goods on marketplace, I'd not go that road but try to make the buying and downloading process as easy as possible. If it is easier to buy an album/film/ebook on Nxt marketplace than it is to torrent it, people will eventually start doing it.
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jefdiesel

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Re: Audio/Video files protection using Nxt?
« Reply #5 on: August 22, 2014, 04:56:33 pm »

DRM would be a major turn off. Make your songs apps movies and games worth purchasing and easy to use.
Then people will buy. A few will always torrent but they will also be smart enough to hack DRM.
It's not worth the inconvenience for the rest of your users.
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Zahlen

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Re: Audio/Video files protection using Nxt?
« Reply #6 on: September 17, 2014, 03:29:21 pm »

I believe markets are moving towards user convenience. e.g. Bandcamp lets listeners stream entire albums at 128kbps before deciding whether they want to buy. (And after you buy it, you get a local copy in .mp3 or .flac). Good Old Games offers games old and new without protection schemes, in one-click installers and often with digital freebies like manuals, artwork, soundtracks. DRM always introduces inconvenience because it adds restrictions.

That said, I don't think users are against DRM per se. Currently the largest online distributor for games, Steam, employs DRM (you have to run the games you buy from Steam through Steam, at least in offline mode. And you can't transfer/resell games you've already 'activated'.) But Steam's not merely about taking a product and then restricting it. Rather, they're offering a different version of the product, one where you get things like integrated friends list, chat, trading cards, easy access to mods, store, game library, etc all in one place. To use this different version, you'll have to play by their rules. So Steam offers other conveniences to make up for the restrictions they want to impose.

Personally I'm happy with Steam, but if your game messes with me like forcing full screen and making Alt-Tab difficult, or some other restriction like this (not just of the classical DRM kind), you're a lot less likely to get my money. This is also why I torrent and try before I buy (I wish more devs would put demos on Steam!), so that I can be sure of what I'm getting. If your game doesn't have an illustrative demo (e.g. something more than you get to play the first level with this limited feature set) and the restrictions are more than what crackers can overcome, I can't try your game, so there's no way I'm paying for it, especially when there's so much good, free stuff available.

(I know the OP was talking just about audio and video, but games are more my thing.)

Anyways, I think DRM is way outside Nxt's job scope. Let Nxt focus on the $ transaction and the digital storefront, and let content creaters and other devs figure out what kinds of restrictions/services they want to have. In fact it already has a way of interfacing with Steam: Steam keys can be send to purchasers via encrypted AM.
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