Microsoft Patents DRM'd Torrents
Anonymous Crobar writes "Microsoft has received a patent for a 'digital rights management scheme for an on-demand distributed streaming system,' or using a P2P network to distribute commercial media content. The patent, #7,639,805, covers a method of individually encrypting each packet with a separate key and allowing users to decrypt differing levels of quality depending on the license that has been purchased."
similar schemes have been around the community for (unfortunately) ages.
It's a great way of monetizing uncontrollable distribution channels. Easily allow anyone and their goldfish to distribute large content freely, and effectively charge at the codec level. Certainly solves a good half of the people-steal-everything problem. The patent's still stupid, but the idea's great -- I'd support a two-year patent certainly.
...how to put a torrent proxy service out there to read in a torrent stream and republish those DRM'ed packets as a non-DRM'ed version of the same data, or just torrent the key itself. Once the genie is out of the bottle its always a challenge to talk that genie back into that little tiny bottle.
1. patent something.
2. patent it "...on a computer".
3. patent it "...on a network".
4. patent it "...with DRM".
5. patent it "???".
6. Profit!!1!
THL phish sticks
If this goes mainstream we won't get in trouble for downloading "stolen" products, we'll get in trouble for stealing/cracking encryption keys. That should be even harder to police.
That's a problem you have with any DRM. However, a system like the one described would be a fairly interesting way to deliver live content to subscribers without undue server load, especially if the underlying P2P system was network topology aware.
See BBC iPlayer/Kontiki
Not only do they want to turn your own PC against you with their DRM, they also want to use your upstream bandwidth. All the disadvantages of torrents and all the disadvantages of legally bought "treats the buyer as a criminal" DRMified files rolled into one
So if I only want to pay for the 700MB quality KEY, I still have to download the whole 4GB torrent?
..
Where can I download this awesome torrents? Oh I think I found the link:
http://thepiratemicrosoft.com/
If you only get the low quality anyways, why does it make any sense for you to be forced to pull the bits in the high quality version? This is a reduction in efficiency and convenience. Due to the long transfer times required for high-quality content, and very short transfer times required for smaller low-quality content.
There's a simpler solution to this: use keyed/passworded private torrents.
Make different quality versions different files.
Then the customers who purchase low-quality content don't get to download the same file as the ones who purchase high-quality content, and it means, less bandwidth and disk space is used.
If they change their mind and wish to buy a high quality version, they can simply download the high-quality version once given access. Upon successful download replace the lq file.
This technology is superfluous.. it shouldn't be patentable, because it's not an actual improvement.
Inventions have to be improvements to be patentable... it's called useful discovery
As required by the constitution: To promote the progress of science and useful arts...
Their technology does not offer an improvement versus pre-existing unpatented technologies in common use and simpler obvious ways of accomplishing the same thing, they do not have a useful invention.
FINALLY Microsoft reaches out to embrace, extend, and extinguish DRM.
So, is the patent office interpreting a law, then?
Yeah, that's kinda their job - interpreting 35 USC 101, 102, 103, and 112, among others.
I always have to laugh when people complain about patents on technologies they hate. Hello? They PATENTED it. That means nobody else is allowed to do it. And Microsoft of course, will fail at it themselves. Thus the effect of the patent is to PREVENT these sorts of DRM mechanisms from proliferating. Use your brains people.
Indeed, using DRM-protected torrent to distribute paid-for content was attempted by several players almost immediately by several provider when bittorrent appeared. And lots of less-legal sharing cites may encrypt the torrents so only members of the community could access its content.
In addition, having different levels of quality in different packets of the same stream (the more packet you have, the better the quality), has been proposed in lots of old systems such as the OGG/Vorbis compression (so that a web radio emits only 1 single stream and quality decreases as packet are dropped, instead of having to emit several stream of varying quality). In fact, progressive JPEGs work in a similar way (first chunks contain low-res blurry image, later chunks add the missing details), except that they are not a media stream but static pictures.
Meanwhile the patent was applied for only in 2005. The only thing that wasn't widely used before, is using separate key on each different "quality" packets. But it looks almost straight forward given the other technologies.
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