ProtonMail introduces pgp support and address verification

Jul

27

2018

ProtonMail has announced support for pgp, along with a feature that it designates as address verification or address verification. The changes require users to use the service as a replacement for their current pgp client.

ProtonMail writes that although its own encryption is based on pgp, there has been no full support for it within its service so far. With the release of version 3.14 of his webmail and version 1.9 of his mobile clients, this has changed. For example, users with pgp can send encrypted emails to recipients who do not use ProtonMail. For this they have to import the public key. It is also possible to receive pgp emails from any PGP user by exporting and sharing their own public key. To facilitate this, ProtonMail has also created its own key server.

A second new function is address verification. The organization sees this as an additional security measure, which must prevent an attacker from replacing the public key of a contact with a malicious key, allowing him to decipher intercepted communication. ProtonMail calls the scenario that it was taken over by an attacker. The function works because users can label the public key of their contacts as ‘trusted’, after which they are stored in the encrypted contact list . That must protect the key against adjustment.

ProtonMail is a service that has been offering encrypted e-mail since 2014. Pgp stands for Pretty Good Privacy and is a method to encrypt content based on a secret private key and a public key.

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