A simple PGP Mail Form Plugin. Enter your PGP public key, then visitors will be able to send you PGP encrypted messages by mail from a form.
A plugin to generate private and public PGP keys. No need to install any software to encrypt and decrypt PGP messages.
OpenPGP public key encryption for any textarea with a shortcode button.
This plugin provides Enigform Secure Login support for WordPress. Works in similar way to HTTP Authentication by dwc.
Encrypted Contact offers your website visitors a tool to protect their messages before they are sent to the website's owner via email.