New Scripts | PHP | Scripts & Programs | Security Systems

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.

Captcha is a free to download and free to use script. You can use it to protect own pages against spammers. Uses ttf fonts which can be easily replaced.

This PHP class will protect the spam, with refresh the captcha image functionality.

PHPStopFlood is a library that can be used to detect and protect a Web site from attempts to flood it with too many requests. It also allows to protect the site from automatic downloading many pages or files from the same IP address, with the same session id or with whatever same identification token provided by you. The detection of flood is determined according to a set of parameters indicating the maximal allowed number of requests for the certain time interval. It is possible to set several parameters at once in order to perform more effective protection. PHPStopFlood was derived from PEAR HTTP_FloodControl by Vagharshak Tozalakyan. The difference is that PHPStopFlood is independed from PEAR and doesn�t require it. Also PHPStopFlood includes a little more storage engines, than HTTP_FloodControl has. Source code is a bit rewritten for my own needs, containers include PHPUnit tests.

Store and retrieve passwords Online while keeping it secure. Web based (php+flatfile) for easy retrieval. All passwords stored are encrypted and the master (key) password is never saved. Even the user-id are all encrypted. CHECK PROJECT WEBSITE FOR DEMO!

This class can be used to check if a given IP address could be a proxy server responding in ports usually used by proxies. It can generate a log with IP addresses and the information whether it can be a proxy. Rex v1.1 features: - Proxy port scan can be disabled (in some cases, it blocks users that have port 80 open in their router configuration) - Added checkspamcop() that checks if a user IP is registered as spammer on Spamcop.net (can be enabled/diabled) - Function filtraxss() renamed to checkxss() because it really checks the presence of malicious xss doesn't filter anything - Function checkxss() only accepts arrays - Added filterxss() that removes or disables tags - Added checksize_db_data() that can be used to check for data size before inserting in database - Added filtersql() that escapes special characters in a string for use in a SQL statement

Simpli Captcha Validate Form is the perfect contact form to prevent those annoying bots from filling out your email form. The Simpli Captcha is a simple and easy to install form designed for beginner web designers and advanced enough for those wanting more. The Simpli Captcha image changes, providing you with a secure and easy to understand form validation. You can easily modify the contact form to your desire. Check out the example. Once your client fills in their information a confirmation email will be sent to them so they know you got their information. All files are included along with install instructions to get you up and running within a few minutes.

This class can be used to generate and validate one time passwords that may expire after a period of time (without using a database or saving the password of any kind). It generates a code based on a secret key that is valid during a period of time. The class can also be used to validate the generated code in a different server and check if the code expired.

Simpli Easy Password Protector was designed for the beginner web programmer. The design is very simple to impliment into any PHP webpage providing a FAST and SECURE way to prevent prying eyes. The Simpli Easy Password Protector can be used for Member Only Areas and all types of PHP Applications. Simpli Easy Password Protector, All that is needed is to change the username and password and paste the code right into your own PHP webpage. It's that simple! Works with all Browsers!

This script allows you to generate random passwords easaly and secure. You are able to set which chars are allowed in the password and the lenght of the password.

dicap Basic is the next generation captcha solution for your web application. Two features make dicap a unique and valuable solution for you: 1. The captcha is easy readable for the users. 2. It is very hard to computer-read the captcha and transform it into the right number-code

Math Version see below 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. This Version of Imagize Image Verification uses a simple math problem (ex. 4 + 3 =) 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.

This web 2.0 script is very easy to install and you can add it to your site in less than one minute. It is built with AJAX and it doesn't require PHP or MySQL, it'll work on any HTML page.

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.

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............................

This is a professional PHP CAPTCHA script to protect your site from spambots. You can customize: text type, code length, background color, font color, border color, image size, font type, font size. Also, you can click the refresh link to renew the CAPTCHA in case it is not readable.

This package implements a CAPTCHA validation solution using groups of images and associated questions. It can generate a form to let a user pick images for one or more groups of images stored in a MySQL database. The user must pick the right images according to the questions associated to the group of images being presented.

Phoca CAPTCHA class is a small free class to show CAPTCHA image in your form. You can safe your form from Spam. You need PHP with GD library but you need not TTF support.

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 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.