>In any sort of reboot, I think a modern encryption system (something like Signal protocol?) would be a must.
Signal doesn't strike me as a very suitable candidate. It is quite connection oriented and email is not. For example, it requires a online "prekey" server just to do encryption.
We already have two protocols for encrypted email (OpenPGP, S/MIME). I can't see how another incompatible protocol would help. It seems to me that the first problem to address would be the usability of encrypted email, which is quite poor. While we are at it, we should work on the usability of encrypted instant messaging, which isn't that great either, for most of the same reasons.
Signal doesn't strike me as a very suitable candidate. It is quite connection oriented and email is not. For example, it requires a online "prekey" server just to do encryption.
We already have two protocols for encrypted email (OpenPGP, S/MIME). I can't see how another incompatible protocol would help. It seems to me that the first problem to address would be the usability of encrypted email, which is quite poor. While we are at it, we should work on the usability of encrypted instant messaging, which isn't that great either, for most of the same reasons.