Slashdot Mirror


Analyzing CAPTCHAs

Bruce Schneier's blog pointed me to a research paper on "Attacks and Design of Image Recognition CAPTCHAs" (PDF). The abstract says, "We systematically study the design of image recognition CAPTCHAs (IRCs) in this paper. We first review and examine all IRCs schemes known to us and evaluate each scheme against the practical requirements in CAPTCHA applications, particularly in large-scale real-life applications such as Gmail and Hotmail."

4 of 105 comments (clear)

  1. Niggers by Anonymous Coward · · Score: -1, Troll

    Niggers. Yep I said niggers. Mod me down if you love to suck nigger dicks!!

  2. PDF warning? by clone53421 · · Score: 0, Troll

    2nd link is a PDF. Thanks for the warning...

    --
    Alexander Peter Kristopeit bought his basement from his mommy for one dollar.
  3. fake weather, fake aliens, fake god, what's next? by Anonymous Coward · · Score: -1, Troll

    seeing as we came from monkeys, it would be reasonable that we wouldn't have a clue, except about the 'weather'?

    the search continues;
    google.com/search?hl=en&source=hp&q=weather+manipulation

    google.com/search?hl=en&source=hp&q=bush+cheney+wolfowitz+rumsfeld+wmd+oil+freemason+blair+obama+weather+authors

    meanwhile (as it may take a while longer to finish wrecking this 'universe'); the corepirate nazi illuminati (who believe that they didn't come from monkeys) is always hunting that patch of red on almost everyones' neck. if they cannot find yours (greed, fear ego etc...) then you can go starve, while they continue to consume, destroy, waste immeasurable amounts of stuff/life, & feasting on nubile virgins, while insisting that we 'monkeys' use/do MUCH less. that's their (slippery/slimy) 'platform' now. see also: http://en.wikipedia.org/wiki/Antisocial_personality_disorder-- get ready to meet the goat devil.

    never a better time to consult with/trust in our creators. the lights are coming up rapidly all over now. see you there?

    greed, fear & ego (in any order) are unprecedented evile's primary weapons. those, along with deception & coercion, helps most of us remain (unwittingly?) dependent on its' life0cidal hired goons' agenda. most of our dwindling resources are being squandered on the 'wars', & continuation of the billionerrors stock markup FraUD/pyramid schemes. nobody ever mentions the real long term costs of those debacles in both life & any notion of prosperity for us, or our children. not to mention the abuse of the consciences of those of us who still have one, & the terminal damage to our atmosphere (see also: manufactured 'weather', hot etc...). see you on the other side of it? the lights are coming up all over now. the fairytail is winding down now. let your conscience be your guide. you can be more helpful than you might have imagined. we now have some choices. meanwhile; don't forget to get a little more oxygen on your brain, & look up in the sky from time to time, starting early in the day. there's lots going on up there.

    "The current rate of extinction is around 10 to 100 times the usual background level, and has been elevated above the background level since the Pleistocene. The current extinction rate is more rapid than in any other extinction event in earth history, and 50% of species could be extinct by the end of this century. While the role of humans is unclear in the longer-term extinction pattern, it is clear that factors such as deforestation, habitat destruction, hunting, the introduction of non-native species, pollution and climate change have reduced biodiversity profoundly.' (wiki)

  4. Re:Why not... by edremy · · Score: -1, Troll
    But not Socialust Muslin Traitor Kenyan?

    Wher Birth Certificat?!?

    --
    "Seven Deadly Sins? I thought it was a to-do list!"