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freeCap - old versions
DO NOT USE THESE VERSIONS ON LIVE SITES
They are provided for those wishing to learn about programming CAPTCHA scripts only, and some versions contain security holes.
For the latest secure version, go to the current secure CAPTCHA version page.
freeCap CAPTCHA Version 1.4
Features:
as version 1.3, plus:
-optional sha1 / md5 / crc32 hash in server session
-3 different randomly generated background types: grid, squiggles, image blocks (or blank) - see the demo!
-multiple font/colour support
-htaccess protected dictionary, fonts and backgrounds
-shared server security further enhanced
-user definable text fading
-automatic random number seeding for older PHP versions
demo - source
freeCap CAPTCHA Version 1.3
Features:
as version 1.2, plus:
-enhanced blur
-enhanced random obfuscation
-easier output as PNG, JPG or GIF
-random or transparent background (white no longer supported)
-reusable session vulnerability fixed
demo - source
freeCap CAPTCHA Version 1.2
Features:
as version 1.0, plus:
-hammering protection (user defined limit)
-blurred/embossed image
-enhanced random obfuscation
-speed improvement
-ability to load custom GD font (one font included)
-optional output as PNG, JPG or GIF*
demo - source
freeCap CAPTCHA Version 1.0
Features:
-randomly distorted text
-white or transparent background
-reload image without destroying form data
-optional dictionary/random char sequence
demo - source
Please keep comments relevant either to exploiting weaknesses in these old versions, or to questions/comments about a particular intricacy of the code.
Questions regarding the latest version, including installation issues, etc should be asked at the latest version's page, here. :-)
User Comments:Who:
When: May 26th, 2006
Says: Sehr nützlich, informativ und anschaulich!
Who:
When: June 28th, 2006
Says: Hola me encanta el trabajo que estan haciendo y me encantaria poder participar.
Who:
When: September 27th, 2007
Says: This looks really cool but for some reason it wont display the image. i did all these changes but none of them worked
changed ./.h(filename) to .h(filename)
chmod 777 didnt work
chown nobody:nobody * -R
I am running Fedora Core 6
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