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Anti-spam protection for your website
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jQuery slide captcha system with jQuery & jQuery UI for Rails 3
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This is a gem wrapper for tiny captcha in C with no dependencies.
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Solve Media CAPTCHA Replacement
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A captcha that uses images instead of garbled text
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This plugin adds helpers for the YinXiangMa CAPTCHA API
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A simple and fast image captcha generator that uses opencv and memcached.
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LoyalSimpleCaptcha is available to be used with Rails 3 or above and also it provides the backward compatibility with previous versions of Rails.
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Merb plugin that provides resource access rate limits and captcha'ing
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Description of TinyCaptcha.
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这是一个验证码生成器。基于rucaptcha。本人只是将他的源码拉下来。为我的网站进行适配。因为我不使用sesion.id
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A honeypot style captcha extension for ActiveRecord. Simple one-line inclusion in the model combined with a simple form field should trap the bad guys in the molasses.
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Google reCaptcha helpers and verifier
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Implements view helpers for the ASIRRA CAPTCHA system for Rails-based websites
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you will get arithmatic sum with answer you just have to compare with ur user in controller
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Merb plugin that provides resource access rate limits and captcha'ing
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Implementation of captcha (Completely Automated Public Turing-Test to Tell Computers and Humans Apart) that is both easy to use and easy to customize/extend.
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IQ, Math Captcha
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Simple captcha
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This is mt first gem
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