Comment on Self-hosting messenger infrastructure
Andres4NY@social.ridetrans.it 6 hours ago @smiletolerantly @lambalicious "no way to read old chats on new devices,"
If you're talking about unencrypted messages, then prosody's mod_mam (https://prosody.im/doc/modules/mod_mam) will store messages for a configurable amount of time and allow all devices to sync older messages.
If you're talking about encrypted messages, you have two choices. OMEMO is the standard means for encrypting XMPP messages, & only works in forward mode; you can't decrypt old messages. OpenPGP, however, decrypts old msgs.
Attachment: prosody.im ↗
smiletolerantly@awful.systems 6 hours ago
Yes, encrypted (otherwise what’s the point? 😄). I’ll admit I haven’t tried the PGP version yet. How’s client support? For OMEMO it’s pretty lackluster, from what I’ve heard not much different for PGP?
In any case, perfect forward secrecy is definitely a good thing / strength, but I’d like a way to re-encrypt messages from an old device, just as an example, during the setup process; or a standardized way to export all history; or just something beyond “either use worse or no encryption, or loose access to your history eventually”.