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Tuta uses standard algorithms also being used by PGP (AES and RSA or ECC) for encrypting the entire mailbox. In addition, Tuta Mail already uses post-quantum cryptography (Kyber) for quantum safe accounts, which is still a work in progress for PGP. Furthermore, Tuta does not use an implementation of PGP itself because PGP lacks important requirements that we have for Tuta
And, if this is what we are talking about, sending a PGP email to a non Proton still requires more than one click and agreement equal, in my experience, to sharing a password for encrypted emails on Tuta.
Tuta Encryption
Read the last sentence. They dont use PGP for emails.
Find me how you can send PGP emails to someone off tuta. You can’t. They disabled it.
With proton its one click.
They give a reason.
And, if this is what we are talking about, sending a PGP email to a non Proton still requires more than one click and agreement equal, in my experience, to sharing a password for encrypted emails on Tuta.