Paragon Initiative Enterprises Blog

The latest information from the team that develops cryptographically secure PHP software.

Preventing SQL Injection in PHP Applications - the Easy and Definitive Guide

It's 2015; there's no excuse for writing code vulnerable to SQL Injection any more


If You're Typing the Word MCRYPT Into Your PHP Code, You're Doing It Wrong

Alternative title: "Libmcrypt considered harmful." You should use libsodium if you can, or OpenSSL if you can't.


Using Encryption and Authentication Correctly (for PHP developers)

A developer's short guide to encryption, authentication, and authenticated encryption with examples in PHP


Implementing Secure User Authentication in PHP Applications with Long-Term Persistence (Login with "Remember Me" Cookies)

Login forms with a remember me checkbox are a common requirement. We explore the security of login forms and a robust model for remember me checkboxes.


The Fast Track to Safe and Secure PHP Sessions

How to configure and use PHP's build-in session management system for maximum security.


Need Technology Consultants?

Will tomorrow bring costly and embarrassing data breaches? Or will it bring growth, success, and peace of mind?

Our team of technology consultants have extensive knowledge and experience with application security and web/application development.

We specialize in cryptography and secure PHP development.

Let's Work Together Towards Success

Our Security Newsletters

Want the latest from Paragon Initiative Enterprises delivered straight to your inbox? We have two newsletters to choose from.

The first mails quarterly and often showcases our behind-the-scenes projects.

The other is unscheduled and gives you a direct feed into the findings of our open source security research initiatives.

Quarterly Newsletter   Security Announcements