07-15-2009, 03:41 AM | #16 | |
frumious Bandersnatch
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As others have said, this was pretty normal with textbooks, I also did it with RPG books. I have one of my physical chemistry books photocopied, I bought vol. 1, but vol. 2 was out of print, so I had to borrow it from the library and photocopy it. |
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07-15-2009, 06:12 AM | #17 | |
Wizard
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I wouldn't mind one single DRM version, universally used on all devices. So then I could move my books from one device to a new one without being locked into buying one brand. |
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07-15-2009, 06:26 AM | #18 |
Grand Sorcerer
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07-15-2009, 06:52 AM | #19 | ||||
DSil
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Electronically, it takes maybe a few seconds and costs nothing to make it available to others. So I think there is a difference, and the photocopying analogy is fair. But that is just my opinion. Quote:
However, as mentioned, the issue with DRM is that the "honest" use should be no problem. Unfortunately, many of today's DRM-schemes are, shall we say, draconian? And I take that as one of the points of the article. A wish that the world would sort out a more reasonable DRM scheme. Quote:
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07-15-2009, 07:35 AM | #20 | ||||
zeldinha zippy zeldissima
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again, the point is, drm does not prevent copying (for those who really want to copy), and absence of drm is not a guarantee that the file will be copied. it's really this last assumption that makes me angry. Quote:
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07-15-2009, 07:41 AM | #21 | |
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07-15-2009, 07:42 AM | #22 | |
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I doubt we'll ever get rid of DRM, but it should never interfere with the use of the product... (now that I think of it, my eReader book is encrypted using my CC number... And you can have it if you want, as the CC isn't valid anymore anyway ) |
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07-15-2009, 07:43 AM | #23 |
zeldinha zippy zeldissima
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i wasn't necessarily referring to the eReader drm because i don't really know exactly how it works ; i was talking about a hypothetical social drm (watermarking) in which the files would be "watemarked" or "encoded" with a cc number. which i am far too paranoid to do, because things happen all the time ; lost, theft, etc. and i don't want my credit card number floating around in the wild.
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07-15-2009, 07:44 AM | #24 | |
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07-15-2009, 07:45 AM | #25 |
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You cannot recover the encryption key from the encrypted file; the encryption algorithm is "one way". ie you can use the key to decrypt the file, but the file doesn't "know" what the key is.
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07-15-2009, 07:45 AM | #26 | |
zeldinha zippy zeldissima
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07-15-2009, 07:46 AM | #27 |
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Theoretically, you should be able to find the key, but I think you'd need the original and the encrypted file... The chances of that happening would be nil...
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07-15-2009, 07:47 AM | #28 |
zeldinha zippy zeldissima
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ok, i misspoke ; i shouldn't have used the word "encryption", that's not what i meant ; i should have said "marked" or something similar, because i was really talking about a form of social drm using watermarks, not eReader drm.
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07-15-2009, 07:54 AM | #29 |
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Even in that circumstance, all you could do would be to try and encrypt the original file with every possible key until you got a match for the encrypted file. For a 16-digit credit card number, such a "brute force" approach would probably be impractical.
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07-15-2009, 08:04 AM | #30 | |
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And Z, watermarking with a sensitive thing is not what I had in mind! But would you distribute a file, which is encrypted with your CC and watermarked with your full name? |
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