Since we use this for rsync & git, and it has well-established propagation procedures etc., we should also use it for webrsync. I think the best way forward would be to finally rewrite webrsync (and delta-webrsync) in Python, and turn into sync modules. Then they could use gemato's Python API to establish the local GNUPGHOME and use it. Alternatively, I can look into adding gemato subcommand to perform detached signature verification.