RE: [WebDNA] Security Images (Captcha)
This WebDNA talk-list message is from 2008
It keeps the original formatting.
numero = 100928
interpreted = N
texte = How about using http://recaptcha.net/ Same service that Craigslist uses. From the site... reCAPTCHA is a free CAPTCHA service that helps to digitize books. A CAPTCHA is a program that can tell whether its user is a human or a computer. You've probably seen them - colorful images with distorted text at the bottom of Web registration forms. CAPTCHAs are used by many websites to prevent abuse from "bots," or automated programs usually written to generate spam. No computer program can read distorted text as well as humans can, so bots cannot navigate sites protected by CAPTCHAs. About 60 million CAPTCHAs are solved by humans around the world every day. In each case, roughly ten seconds of human time are being spent. Individually, that's not a lot of time, but in aggregate these little puzzles consume more than 150,000 hours of work each day. What if we could make positive use of this human effort? reCAPTCHA does exactly that by channeling the effort spent solving CAPTCHAs online into "reading" books. To archive human knowledge and to make information more accessible to the world, multiple projects are currently digitizing physical books that were written before the computer age. The book pages are being photographically scanned, and then transformed into text using "Optical Character Recognition" (OCR). The transformation into text is useful because scanning a book produces images, which are difficult to store on small devices, expensive to download, and cannot be searched. The problem is that OCR is not perfect. ...more on site -----Original Message----- From: eddie@thinksite.com [mailto:eddie@thinksite.com] Sent: Wednesday, September 24, 2008 9:47 AM To: talk@webdna.us Subject: [WebDNA] Security Images (Captcha) Has anyone made a WebDNA version of image security (Captcha) for their forms? I've used on on PHP sites, but not on any of my WebDNA sites, and they are starting to get hit more often with spam. I haven't put much thought into making my own, I thought I'd ask others first. --------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list
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How about using http://recaptcha.net/ Same service that Craigslist uses. From the site... reCAPTCHA is a free CAPTCHA service that helps to digitize books. A CAPTCHA is a program that can tell whether its user is a human or a computer. You've probably seen them - colorful images with distorted text at the bottom of Web registration forms. CAPTCHAs are used by many websites to prevent abuse from "bots," or automated programs usually written to generate spam. No computer program can read distorted text as well as humans can, so bots cannot navigate sites protected by CAPTCHAs. About 60 million CAPTCHAs are solved by humans around the world every day. In each case, roughly ten seconds of human time are being spent. Individually, that's not a lot of time, but in aggregate these little puzzles consume more than 150,000 hours of work each day. What if we could make positive use of this human effort? reCAPTCHA does exactly that by channeling the effort spent solving CAPTCHAs online into "reading" books. To archive human knowledge and to make information more accessible to the world, multiple projects are currently digitizing physical books that were written before the computer age. The book pages are being photographically scanned, and then transformed into text using "Optical Character Recognition" (OCR). The transformation into text is useful because scanning a book produces images, which are difficult to store on small devices, expensive to download, and cannot be searched. The problem is that OCR is not perfect. ...more on site -----Original Message----- From: eddie@thinksite.com [mailto:eddie@thinksite.com] Sent: Wednesday, September 24, 2008 9:47 AM To: talk@webdna.us Subject: [WebDNA] Security Images (Captcha) Has anyone made a WebDNA version of image security (Captcha) for their forms? I've used on on PHP sites, but not on any of my WebDNA sites, and they are starting to get hit more often with spam. I haven't put much thought into making my own, I thought I'd ask others first. --------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: archives: http://mail.webdna.us/list/talk@webdna.us old archives: http://dev.webdna.us/TalkListArchive/
"Olin Lagon"
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