I am implementing digital signatures on outgoing stanzas (XEP 0274), with or without security labels (XEP 0258) as a Spark plugin. I’ve been wondering about how I could notify the user of messages with invalid signatures through Spark’s UI in the transcript window.
Has there already been any thoughts on this ? Basically it would warn the user that a specific message has an invalid signature, but I’m open to anything remotely close to this (message customization on some condition more generally). The TranscriptWindowInteceptor seems to be a good start for this for instance.