Paragon Initiative Enterprises Blog

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

Solve All Your Cryptography Problems in 3 Easy Steps

A layman's introduction to using Halite, our libsodium wrapper


Keyggdrasil, Continuum, and the Cryptography Powering CMS Airship

A deep dive into the cryptography protocols that will secure your blog, should you choose to deploy CMS Airship.


Introducing CMS Airship: A Secure Content Management System for the Modern Web

The beta release for a secure-by-default CMS built by Paragon Initiative Enterprises


Client Authenticity is Not the Server's Problem

The answer to a very frequently asked question that most people in the industry know without needing to read this.


One Login To Rule them All - Seamless and Secure Cross-Domain Authentication

How to authenticate a user on multiple domains without violating the Same Origin Policy.


How to Safely Store Your Users' Passwords in 2016

Salted Password Hashing with Argon2, Scrypt, Bcrypt, and PBKDF2


On The Design and Implementation of a Stealth Backdoor for Web Applications

Or: How I won the password hashing category for the Underhanded Crypto Contest at DEFCON 23.


Preventing Timing Attacks on String Comparison with a Double HMAC Strategy

Preventing side-channel attacks (i.e. timing attacks on MAC validation) and dangerous compiler optimizations with a blinded comparison.


You Wouldn't Base64 a Password - Cryptography Decoded

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


Using Encryption and Authentication Correctly (for PHP developers)

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


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