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Avid

Member since Mar 27, 2011

Recent Blog Comments By Avid

  • Using CAPTCHA In ColdFusion 8

    Posted on Mar 28, 2011 at 10:51 AM

    @Jody, Yes, the value passed in the captcha is dynamic and encrypted. But for the line that compares the passed value with the encrypted value below: <cfif (strCaptcha EQ FORM.captcha)> If the spammer can check the form once and scrape the strCaptcha encrypted string and pick up it's corre... read more »

  • Using CAPTCHA In ColdFusion 8

    Posted on Mar 27, 2011 at 10:50 PM

    I have been using captcha with cfimage and passing the encrypted or hashed field as a hidden value and comparing it to the user input, however a spammer or bot can still bypass the form. They can scrape the encrypted hidden value from the form and know it's corresponding real value one-time from a f... read more »

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