Ruby/CAPTCHA - A simple CAPTCHA ("Completely Automatic Public Turing Test to Tell Computers and Humans Apart") written in Ruby.

Zend Optimizer allows you to run encoded files and enhance the performance of your PHP scripts.

php login script features functions to add hashed and encrypted passwords and usernames to a mysql table.

John the Ripper is a fast password cracker.

OpenSSL represents a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3).

Zend Guard enables the protection and mass distribution of commercial PHP applications.

Base64 encoding/decoding is a public encoding/decoding algorithm.

QuickCert SSL Certificate Generator allows you to quickly and easily create SSL certificates.

File Protection script will protect your files so that only your members will be able to download them.

MD5 module example script uses the md5 module included with python to compute md5 hashes of files passed to it on the command line.

rc3 - Proxifier is an easy to install three tier web proxy written in PHP

Perl MD5 Login is a Perl CGI JavaScript framework used for implementing a MD5 based encryption secure login on both client and server machines.

HAVP (HTTP Antivirus Proxy) is a proxy with a ClamAV anti-virus scanner.

Securimage CAPTCHA Class is a highly customizable PHP CAPTCHA image class for generating CAPTCHA images to prevent programs from filling out your forms.

kerberos script provides basic Kerberos bindings for ruby which allow authentication.

Random Image Generator script, when used with forms, prevents form automation by scripts and programs by requiring the user to type in a random key.

Scapy is a powerful interactive packet manipulation program.

XCrypt is a XOR file encryption tool.

TeleAuth is a Ruby library / gem for the TeleAuth two-factor authentication service.

As3 Crypto Framework is a cryptography library written in Actionscript 3 that provides several common algorithms.

OpenSSH is a FREE version of the SSH connectivity tools that technical users of the Internet rely on.

eAccelerator is a free open-source PHP accelerator, optimizer, encoder and dynamic content cache.

Crypt::Blowfish provides Blowfish block cipher encryption.

Spambot Protector script protects you email address written on you web page from spam bots.

Blowfish HTML Encryption script uses 448-bit Blowfish encryption to create password protected web pages.