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- 1,251 categories
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Categories
Encaps CAPTCHA
- Simple but effective CAPTCHA script, tested on live forum with 200-500 visitors per day - about 4% of spam since CAPTCHA is implemented. Requirements: PHP and GD. Detailed installation instructions on the website.
- Platforms
- Linux,
- Windows,
- FreeBSD
- Licenses
- Freeware
Honso_Email-Vault
- This PHP script protects your email address from malicious site crawling spam robots. This script uses many methods of protection. The most obvious is the use of a CAPTCHA that expires every 3 min to prevent brute force attacks. There are some hidde...
- Platforms
- Linux,
- Windows,
- FreeBSD,
- Mac OSX,
- Sun Solaris
- Licenses
- Freeware,
- Commercial License
Captcha - in 5 lines of code
- This Captcha is packaged into a class and therfore only needs 5 lines of code to be entered into your code and the creation of a folder with writable permissions for the image. All the variables are held inside the class for easy editing Its as e...
- Platforms
- Linux,
- Windows,
- FreeBSD,
- Mac OSX,
- Sun Solaris
- Licenses
- GPL
KB Captcha PHP Script
- An easy to implement Captcha Script which does not require images but works on text. Now you can protect your pages with the use of Captcha, you can now have some additional security/authentication/n ospam to your web pages. This script is based on t...
- Platforms
- Linux,
- Windows
- Licenses
- Freeware
RSA
- This class is a pure PHP implementation of the RSA public key encryption algorithm. It can generate the public and private keys from two prime numbers. The public key should be used to encrypt the data. Only the private key can be used to...
- Platforms
- Linux,
- Windows
- Licenses
- GPL
DRBImageVerification
- DRBImageVerification is a simple anti-spam image verification, or &"CAPTCHA&", script. It allows you to add a challenge-response test to your existing PHP powered forms to prevent automated spam postings. The verification string len...
- Platforms
- Linux,
- Windows,
- FreeBSD,
- Mac OSX,
- Sun Solaris
- Licenses
- Freeware
Security Image
- Easily combat spam by adding Captcha images to your website for free using PHP.
- Platforms
- Linux,
- Windows,
- FreeBSD,
- Mac OSX,
- Sun Solaris
- Licenses
- GPL
Idut Human Checker
- This is a useful script using CAPTCHA to make your PHP applications spam-proof. It takes seconds to install by simply including the Human Checker script on your page. It stops your pages being spammed by requiring users to enter a numeric code that...
- Platforms
- Linux,
- Windows,
- FreeBSD,
- Mac OSX,
- Sun Solaris
- Licenses
- Other Free / Open Source License
Free Captcha - Animated Gif Style
- Simple to install and answer correctly (even for 10 year olds) but tough on bots. AnimatedCaptcha fights spam using layers of gifs so instead of spammers just having to decode 1 picture, they are presented with a series of pictures via an animated g...
- Platforms
- Linux,
- Windows
- Licenses
- GPL,
- LGPL
PHP Spam Terminator - protect your site from annoying spam posts
- PHP Spam Terminator will stop robots from using a form to send spam. It displays random characters which the user must enter into the box to continue the script, if they are entered incorrectly or not at all, the form will not be processed. It can ...
- Platforms
- Linux,
- Windows,
- FreeBSD,
- Mac OSX,
- Sun Solaris
- Licenses
- Commercial License
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