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Submission + - Uniquely identifying paper with consumer hardware (freedom-to-tinker.com)

TurboNed writes: Ed Felton and others released a paper documenting how to analyze and "fingerprint" a piece of paper using only consumer-grade scanning hardware. The abstract as posted on his blog:

This paper presents a novel technique for authenticating physical documents based on random, naturally occurring imperfections in paper texture. We introduce a new method for measuring the three-dimensional surface of a page using only a commodity scanner and without modifying the document in any way. From this physical feature, we generate a concise fingerprint that uniquely identifies the document. Our technique is secure against counterfeiting and robust to harsh handling; it can be used even before any content is printed on a page.


Comment Re:It's all a question of media (Score 1) 478

Many games are available through Steam online, but if you purchase them physically in the store, there's no connection to Steam. Examples: Spore, Far Cry 2, Prey, just-about-anything-that-isn't-Valve-made. Purchasing those games in the store doesn't tie them to your Steam account even though you could have purchased them via Steam and had them tied. (But for Valve titles, it is as you say - the physical games require a Steam account and tie in to the system.)

Comment Re:You Have Stolen From Your Bandmates & the R (Score 3, Insightful) 672

...mind you, most music stores won't mind if it was a famous artist...

Having worked at a music store (chain, not a mom-n-pop), I most certainly would have minded if any artist (whether I recognized the artist or not) tried to walk out without paying. If they could take the nebulous "music" without denying us the physical property (the CD) that we had to inventory, track, and account for - then yes. But since you can't (at this time in 99% or more of cases) take music from a music store without also taking the physical media, you also cannot take the music for free. No matter who you are.

Comment Re:I just want the X-Wing Trilogy back! (Score 1) 381

I haven't played EaW or TFU so I have no comment. JK2 was a pale shadow of Jedi Knight (but still a good game). KotOR is already (in my book, at least) a classic, so I'll definitely agree with you there. But there was once a time when I would buy a game I had never heard of just because it had the LucasArts logo on the box. All of their games were sure-fire quality titles. That time has long passed. In the case of KotOR and JK2 at least, the talent wasn't contained within LucasArts anyway. They just licensed their intellectual property to another development house and published someone else's game. I miss the days when their development was in-house. But I'm crazy, I also miss the days when they developed adventures.

Comment Re:No punishment, no point. (Score 2, Interesting) 507

Anybody play Prey? "Death" was a mechanic used to get more ammo. That's a really good way to cheapen what's supposed to be a rather major mechanic of gameplay. In my opinion, Half-Life 2 got the perfect balance. *VERY* frequent auto-saves (and it keeps 2 of them) with the capability to quick save anywhere you want. Obviously things are different for a console game, but I feel that Half-Life 2 hit the sweet spot where you wanted to avoid death, but weren't frustrated by it.

Comment Re:I just want the X-Wing Trilogy back! (Score 1) 381

LucasArts would never allow their IP to be distributed. They won't allow their stuff to be considered abandonware and will actively ensure that even their oldest games don't get redistributed freely. Sad but true, some of their old classics (as if they're making NEW classics. They aren't) are all but completely unavailable these days. Regardless, Freespace is better than any of the X-Wing games, and Freespace 2 is better than Freespace. However, XWA *was* a solidly good game. A nice throwback to the single-player goodness of TIE Fighter.

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