Facebook has rolled out a new feature, which allows users to add OpenPGP keys on their profiles for encrypted email notifications.
The feature will enable users to send end-to-end encrypted notification emails from their Facebook profile to email accounts. It can currently be managed only through desktop.
OpenPGP key features a long-term primary key with short-term subkeys. It enables users to frequently rotate operational keys and maintain the web of trust as well as an identity over time.
In a blogpost, the company said, "To enhance the privacy of this email content, today we are gradually rolling out an experimental new feature that enables people to add OpenPGP public keys to their profile; these keys can be used to ‘end-to-end’ encrypt notification emails sent from Facebook to your preferred email accounts.
"People may also choose to share OpenPGP keys from their profile, with or without enabling encrypted notifications."
Facebook, which has more than 1.39 billion monthly active users, is currently using the GPG standard to protect notifications information.
The company is also testing an internal search engine for its mobile app, which will enable users to identify and post links in a status update without the need to Google.
Last year, WhatsApp announced plan to add end-to-end encryption into its service.
The platform, owned by Facebook, will be incorporating technology from the TextSecure encrypted text application to encrypt the messages of over 600 million users.
