This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

DGXPCO

Description

DGXPCO (Digital Guarantees for eXplicitly Permitted Core Operations) is a proof-of-concept cryptographic signature verification utility for WordPress software updates. The plugin will source manual (offline) signatures for WordPress core updates and prevent the application from updating unless the contents of the update payload are verified with a remote signature.

This provides a second source of truth for the integrity of WordPress updates beyond the MD5 content hash supplied in the header from the WordPress update server. If that server were ever breached, it’s unlikely the server hosting the signatures of the files was also breached. If the signatures ever fail to validate, you can know your site was protected from an attack.

Installation

Manual Installation

  1. Upload the entire /dgxpco directory to the /wp-content/plugins/ directory.
  2. Activate DGXPCO through the ‘Plugins’ menu in WordPress.

FAQ

Installation Instructions

Manual Installation

  1. Upload the entire /dgxpco directory to the /wp-content/plugins/ directory.
  2. Activate DGXPCO through the ‘Plugins’ menu in WordPress.
Who is responsible for the signatures

At the moment, Eric Mann will personally verify and sign every new update payload once it’s released by the core team. The signatures of each core file are hosted in a separate GitHub repository, with every commit signed by Eric’s GPG private key for redundant verification.

Reviews

There are no reviews for this plugin.

Contributors & Developers

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Changelog

1.2.0

  • Filter the upgrade cache to avoid prompting core upgrades with missing signatures.

1.1.0

  • Introduce integration test for full core compatibility guarantees.

1.0.0

  • First release