Paragon Initiative Enterprises Blog

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

Protecting RSA-based Protocols Against Adaptive Chosen-Ciphertext Attacks

A deep dive into preventing chosen-ciphertext (e.g. padding oracle) attacks against RSA in custom encrypted transport protocols.


Paseto is a Secure Alternative to the JOSE Standards (JWT, etc.)

Paseto (Platform-Agnostic Security Tokens) is everything JWT should be, but isn't (namely, secure)


The 2018 Guide to Building Secure PHP Software

Everything a developer needs to know to build secure software in the PHP programming language in the year 2018


Assuring Ciphertext Integrity for Homomorphic Cryptosystems

How to build a homomorphic encryption scheme that is not vulnerable to chosen-ciphertext attacks, using blockchain-like protocols.


The Quick Guide to Simple and Secure Automatic Updates

How to build your own automatic update system that is verifiably secure.


It Turns Out, 2017 is the Year of Simply Secure PHP Cryptography

A reflection on the first six months of the year, ext/sodium landing in PHP 7.2, and where to go from here.


Chronicle Will Make You Question the Need for Blockchain Technology

With Chronicle, you probably don't need a blockchain to solve your problems anymore.


Building Searchable Encrypted Databases with PHP and SQL

How to implement field-level data encryption while still allowing fast queries.


How We Engineered CMS Airship to be Simply Secure

A deep dive into the security engineering decisions that went into CMS Airship. A lot of the decisions we made are subtle.


No Way, JOSE! Javascript Object Signing and Encryption is a Bad Standard That Everyone Should Avoid

JWT, JWE, JWS, etc. are terrible designs and need to be scrapped, not resuscitated.


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