Paragon Initiative Enterprises Blog

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

How to Safely Implement Cryptography Features in Any Application

No matter what language you're developing in, there's really only one cryptography library that shines above the rest.


The State of Cryptography in PHP

With PHP 7 nearing its official release, let's reflect on the state of cryptography in PHP applications.


A Gentle Introduction to Application Security

We aren't satisfied with the industry's current attempts to teach the basic concepts of application security to software developers; instead, we propose a gentler model.


You Wouldn't Base64 a Password - Cryptography Decoded

A human-readable overview of commonly misused cryptography terms and fundamental concepts.


Common Uses for Cryptographically Secure Random Numbers

Some useful things that can be built with a CSPRNG.


How to Securely Generate Random Strings and Integers in PHP

A lesson on cryptographically secure pseudorandom number generators in PHP, and how to generate random integers and strings from a high quality entropy source like /dev/urandom to generate secure random passwords in PHP.


Everything You Need to Know About Preventing Cross-Site Scripting Vulnerabilities in PHP

Although Cross-Site Scripting is one of the most common vulnerabilities on the Internet, it remains an unsolved problem (unlike SQL Injection).


Quantifying Popularity in Real-Time for High-Volume Websites, Part 1

The first in a two-part series. We establish a mathematical definition for popularity within a given dataset and build some abuse resistance into the algorithm design.


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.


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.

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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