3 ms·
I'm curious why you chose to use asymmetric crypto for this instead of symmetric (for example, encrypting a secondary key using the primary one, and then using
by throwaway4564 9y ago
I'm curious why you chose to use asymmetric crypto for this instead of symmetric (for example, encrypting a secondary key using the primary one, and then using that with an authenticated encryption mode like AES-GCM to give confidentiality/integrity).
Are there plans to have the protonmail service provisionally add contact info for the user, then have the user accept this by signing it with their private key?
- badrabbit 9y agoI can only presume,but I believe they simply want it to integrate well with the existing protonmail public key system. Also,maybe they plan on letting protonmail users share or send contacts(non-repudiation and authentication).
- emersion 9y agoEncrypted contacts uses PGP, which in turn uses symmetric crypto internally (the symmetric key is encrypted using the asymmetric private key). So it's both standards compliant and fast.