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Sunday, September 18, 2011
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MattSepeta
May 4, 03:55 PM
Exactly. Physicians can't be sitting there going through every single life hazard.
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Sure. Of course, the guys working on DRM at Apple aren't idiots. If you were an engineer charged with defeating this type of attack, what would you do? I can tell you what I would do, I would start changing a whole load of bits on your harddrive, not because it's necessary, but because it makes it that much harder for you to find the stuff that changed.
It's a moot point anyway. Any file that you download from iTunes is going to be at least a few megs in size. The key is going to be somewhere in the order of a couple of hundred bytes. Which bytes amongst the several megs are the key? They aren't necessarily contiguous, they're almost certainly encrypted by another key hidden elsewhere in the system, and they may even be fiddled by a virtual machine after decryption, just to muddle things up a little bit more.
Finding the approximate location on the HD is simple. Fiding the actual key in the right order is an extremely difficult task.
As someone who does this for a living, can you comment on my read of the hacks that have been released in the later post http://forums.macrumors.com/showpost.php?p=2917258&postcount=96. It still seems to me that where DRM has been hacked has relied on key retrieval or finding the weak spot in the chain.
B
Um, of course DRM hacks rely on either retrieving the key, or finding the weak link. They are the only two attacks possible - grab the data after the program has decrypted it for use, or find the key/algorithm so that you can do the decryption yourself. At the moment the first attack is nearly trivial to implement, although that will change a bit when the manufacturers start moving on to a "Trusted Computing" style platform. All you need to do is write your own audio driver that sits between the computer and the real driver. It picks of the data and stores it as it's sent to the speakers.
The second solution is much more difficult, but far more elegant. It allows you to keep intact all of the metadata associated with the file (track name, lyrics, album name etc etc). BUT, you have to be clever enough to recover the key.
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The price drop and improved specs are good, but it's too bad that they don't match or exceed the dell monitors in all categories - maybe I'm just expecting too much. Oh well, a guy can dream right?
Given the Dell monitor has all those TV/video inputs as well,and can rotate to portrait mode,i think Apple is still over priced. Sure the alu shell is very nice but not for the extra cash and without these features.
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We kind of liked the fact that we could look at where you've been with your iPhone, too.
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I shall try to remember, but won't have it until Wed., won't have connection until the Monday after.
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Only 18 teachers have been sacked in the UK for incompetence over the past 40 years. You could increase that figure by 500x or something and even at that level it would be extremely difficult for the unions to get public sympathy for teachers being treated badly. Given there are half a million teachers in the UK, even with 500x more of them being fired for incompetence that would still only be 225 a year or 0.05% of them a year.
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Fossie
Jan 11, 06:53 PM
I think people should just get over it. Although doing it while he was doing the talk was a little :mad:
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hard disk drive on my old TRS-80 computer and thinking "This thing is HUGE! I can store every program I own on here AND all my data!" And we all know the ever popular "640K should be enough for anyone!" quote regarding RAM memory.
But if you're talking about simply the "here and now", yeah - the typical user won't have a good reason to store 30-50GB on a single piece of media. On the other hand, someone who works with video a lot easily might. (Think of the idea of making a single disc that contains a full collection of HD video clips you made and edited so you could copy/paste them into future projects, at will.) Sort of like those "50,000 clip art images collection!" CDs people buy, except your own, personal HD video version.
I'd also imagine this would be nice for corporate backups. People currently shell out around $90-100 each for DLT or LTO type backup tapes that hold maybe 40GB or so of compressed data. They could substitute one with HD-DVD or Blueray media and have more reliable backups with easier, quicker retreival too.
That comment about not including the burner is interesting, and I'm at least trying to give it some more thoughtful consideration. Who really needs to burn 30 - 50 GB of data? For backup solutions, wouldn't just getting a huge external hard drive be more practical? Portability might be a factor there, but external drives aren't that cumbersome I don't think. I'm thinking that the majority use of those HD media burners would be to copy movies with illicit applications. Could Apple put in place some protection framework that attempted to only allow creative-works-originating software to burn HD discs, (ie, iMovie, iDVD, FinalCut and other pro apps that use full quality, large size files) therefore denying use of a program that takes a quick and dirty imported disc image and burn it to disc, so that you'd have to work around some long and annoying solution to make an illegal copy (ala burning audio CDs in iTunes and reimporting them to strip the DRM) that would deter any easy mass pirating?
More simply, I'm curious of who out there needs to burn 30 to 50 GB chunks of data, too large for a dual layer DVD to hold, and why.
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maybe i'm just crazy or something but i really want to try this. I've been waiting to get a Apple laptop some time now and i think this would be a great intoduction to OSX.
And now somebody is probably thinking im going to do this the illegal way.. But NO, several of my friends run OSX so no problem in getting OSX.
I just need help with the install and stuff, so hoped someone else was lose minded enough to help
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