@cuchaz Basically, I need a signing tool. The web application should be able to send signing request to the extension, which in turn presents request to the user. When the user approves request, extension sends signed data back to the web app.
I checked Burger docs, and it appears to be working this way, but I can't find documentation for its API. Is it available?
Speaking of signature algorithms, I'm mostly interested in EdDSA, because several Fediverse servers already support EdDSA or planning to support it in the future.