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How Would You Design a Captcha for the Deaf-Blind?

Posted by Cliff on from the an-oversight-isn't-necessarily-discrimination dept.

kesuki asks: "Right now, the state of the art captcha only works for the visually-abled. Some people are trying to start a grass roots opposition to catcha using existing anti-discrimination laws. However, without any captcha at all, spammers would have a field day. Audio captcha would work for the blind, of course, but they still leave out the deaf-blind using brail interpreters to use their computers and navigate the web. What system of captcha can you dream up that would work for the deaf-blind?"

2 of 99 comments (clear)

  1. How about by Landak · · Score: 3, Interesting

    "If you cannot view this Captcha, please email foo@bar.com [spam assasin'd, of course], or call 0800-1234-567"

    --
    My UID is prime. Is yours?
  2. Long-winded English, maybe? by zoeblade · · Score: 3, Interesting

    So, if I understand this right, you need a computer to be able to randomly generate a question and corresponding answer from scratch (pulling it out of a database would presumably just lead to the spammers cataloguing all of the question componenets), but on the other hand, you need a computer to not be able to work out the answer when given just the question.

    My best idea is to get it to generate long-winded English sentences along the lines of this:

    Please enter any five letters, except that the middle one must be E. Make sure two of the letters are the same.

    It would probably be a lot easier to just have a human being read each post and make sure it's not spam before displaying it publicly though, as is the case with moderated newsgroups.

    At the rate we're headed, it seems like pretty soon Google will be able to whip up a robot that can beat the Turing test or Voight-Kampff empathy test.