Most Popular Scripts | PHP | Scripts & Programs | Security Systems

TheCAPTCHA - a powerful PHP script to protect your site from spambots. Free and open-source. Easy to install. TheCAPTCHA is creating much more secure from break CAPTCHA images than any script of previous generation.

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 they copy from a PHP generated image.

This PHP script creates an image with a security code (known as "captcha") that can be used to protect e.g. your guestbook from spam. It requires PHP 4.1.0 or higher with session support and GD library.

Security code image generator and verifier. Requires GD support (most modern PHP installations) and mySQL. No image caching required. Configurable fonts, colors and captcha lengths.

Micro Captcha is a simple PHP script which generates captcha images to prevent spam form submissions. The script generates random images with a security code for you. Installation and usage is very simple. All you need to do is insert the php file as an image source into your form. Later during the form processing you only need to check a session variable. Detailed installation instructions and an example code is also attached.

Secure Login Script is a New Powerful PHP login script created using PHP/MySQL and HTML/CSS along AJAX via Jquery. Secure Login Script can be used to offer your users a private area where you can share informations, pictures, links whatever you might think it is useful. Features: Easy to install - AJAX Powered Registration & Validation - AJAX Powered Login - Automatically Sending Email with confirmation link to activate user account - Password Recovery & Reset - Login with "remember me" feature - Admin area to manage users - User Ban Option - Mass Mail all the registered members - Validate only A-Z characters for Full Name - Checks for valid email address - Terms & Conditions modality in order to signup - Nice text inputs & buttons for the forms.

encryptMe is a couple php scripts designed to help developers and website administrators protect and add security to their data. Using the built in functions, you can encrypt and decrypt data using the encryption and decryption algorithms as well as hash your data with over 40 different hashing algorithms! Features 5 Encryption/Decryption Algorithms! Over 40 Hashing algorithms! Easy to implement into existing websites!

An anti-spam form protection image written in PHP. Requirements: Unix, GD Libary

Create Password protected areas on your site, with access to different contents for different users and different types of users Real Life Problem: You can have three kinds of members (Free, Silver, Gold) with some content accessible only to Free members, Some extra content accessible to Silver and Some More accessible to Gold memberships.PHP Site Lock Solution: You create three groups of users and then at the top of each page, you can modify. Create secure downloads on your server so that only authorized users can download your files, e books, installers etc real Life Problem: You have created a great e book or a great software and you want only authorized users to download it PHP Site Lock Solution: You use the "Protect Downloads" feature to create alternate URL s for your downloads. You use this alternate URL for all downloads............................

phpAES is a PHP 5 class (PHP 4 now included). It can encrypt/decrypt data using 128, 192, and 256-bit AES cipher. It uses pure PHP and does not require mcrypt or any other external library to be compiled into PHP. Supported cipher modes include: Electronic Codebook (ECB), Cipher Block Chaining (CBC), Cipher Feedback (CFB), and Output Feedback (OFB). There are two versions of phpAES, the free version of phpAES only supports ECB mode while the paid version supports all modes. phpAES comes with a sample script and the phpAES class file, includes full source code. phpAES meets the specifications as outlined by FIPS 197 (Federal Information Processing Standards Publication 197) available at http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf.

Comes in two packages: Minimal Version – which can be used only as a login application, for multiple users or single user Extended Version – which contains both the login application and, as an extension, a backend, for admin users only, where you can manage members This application comes in two parts, one is the PHP Class that handles all the Server Side processes and other data, and one is the jQuery Plugin which handles the forms and all the processes with Ajax and smooth transitions, without page redirects. jQuery Plugin Is a jQuery Plugin that generates a login, register, recover and register form, with a lot of options and easy to edit if necessary.

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 decrypt the data encrypted with the public key. It has also functionality for digital signature.

This is one of the simplest php captcha script.

The Goal of our CAPTCHA SCRIPT is to stop spammers, and automated programs or scripts from making post and/or submitting an online form. There are many free tutorials out there on accomplishing this process, ours sets up in 5 minutes or less, and works on Windows or Linux servers without issue. ONLY REQUIREMENTS PHP 4+ and the GD Image Library, this library is very common on every install of PHP ABSOLUTELY no programming knowledge needed. So if it needs to work, and work effectively, and time is of the essence, this script is for you. Our Image Verification uses both letters and numbers against 1 of 4 included background images, making it nearly impossible for any OCR (Optical Character Recognition) software from reading it. Our CAPTCHA Code also randomly shifts the position and "tilt" of each of the characters as well as the color of the characters. Stop Spam Now. Visit our online demo, README file, and detailed description today. PRICE REDUCED

You can use this script to add captcha to your application for preventing bots and unwanted applications to fill up your forms on site. Very easy to setup and modifiable, you can even add new fonts to it. You can also use your custom font such as popular animal font that will prevent even from OCR applications recognizing the characters. Random rotation of characters makes it very hard for software applications to recognize the characters. And on the fly word creation makes this captcha UNBREAKABLE. Each time a new word is shown to the user and never repeats.

1) Protect your PHP based script from unauthorized use. 2) Protect from pirated copy by validating Domain and IP address 3) Provide demo for limited period. 4) Force to add powered by back link. 5) Protection from Fraud payments cause refund & charge back. 6) Permanently delete unauthorized script For more visit our website www.savsofteproducts.com/licensemanager/

SecureBlackbox is a comprehensive library that adds support for SFTP, FTPS, SSH, PGP, PDF, XML, S/MIME, SSL/TLS, HTTPS, PKI, ZIP, EDI, Cloud, WebDAV, SAML, Office security to your PHP web pages and scripts. SecureBlackbox primary goal is to provide basic technology for the wide range of applications, hiding the details of low-level protocols and algorithms, used by the parties during secure communications. This is PHP edition.

V-Shepherd Copyright Protector is a PHP script developed by Agbajelola Olasunkanmi Julius to solve the problem of copyright infringement and the theft of intellectual properties among film makers, E-book Authors, musicians, softwares developers, and those who sell Digital goods on the Internet.

Normally, you see Match Captcha with HTML elements and calculating result. We now build captcha that shows the mathematical question as images. So that no programs can read the images equations. Please checkout the DEMO

BigBear Defence is simple to use for users with small knowledge of HTML and PHP. Settings are in separate files and all files needed are collected in a sub directory to keep it clean. Settings files allow changing colors, font, effects and size of font and image.