@uhuru
#DeltaChat has no forward secrecy.
And depended on SHA-1 and using MD5.
Both are considered weak cryptography if I'm not mistaken.
While I believe deltachat to be a great app with good use case, it's not what I'm looking for.
#xmpp ecosystem is?/was! pretty bad in serving proper e2ee cross platform implementation.
Till recently there was only conversations as a usable app. Since some weeks ago it seems that @dino now also offers e2ee by default. But also both conversations and Dino using an outdated omemo specification, and are by that not compatible with @kaidan.
I will reconsider xmpp when they adapt the newer specification.
@briar not mentioned, but also no, cause it's not working on #TailsOS or on android with Orbot.
So very much unusable, since it's not running on the platforms we use.
#simplex, no, I don't like nor trust the dev.
#cwtch, yes, maybe