Introduction

While the use of filters and validating data is one part of the security process, a web developer should be aware that Randomization, Obfuscation, and Cryptography in PHP can make a difference in the security of web applications. This tutorial will guide you through some simple techniques at creating and using random or unique values within your web applications, taking a look and applying some general obfuscation techniques, and looking deeper into the science of Cryptology and it’s use within PHP.

What you Will Learn

  • How to generate random values with PHP
  • Generating random Passwords
  • Salting Passwords and Authenticating The User
  • Obfuscation in PHP, an Overview
  • Cryptography in PHP and it’s Applications

Read full entry here»

http://net.tutsplus.com/tutorials/php/simple-techniques-to-lock-down-your-website/

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