diff -r d53804c0fb6f -r 37ed3c7ac1b6 test.lua
--- a/test.lua	Sat Mar 05 14:55:50 2016 +0200
+++ b/test.lua	Sat Mar 05 14:57:47 2016 +0200
@@ -30,7 +30,18 @@
 local username, server = arg[1]:match ( '(.+)@(.+)' )
 local password         = arg[2]
 local recipient        = arg[3] or arg[1]
-local fingerprint      = arg[4] or '01:23:45:67:89:ab:cd:ef:fe:dc:ba:98:76:54:32:10'
+local fingerprint      = arg[4]
+
+if not fingerprint then
+	local ssl_fp_format = lm.ssl.supported ()
+	if ssl_fp_format then
+		if ssl_fp_format == 'MD5' then
+			fingerprint = '01:23:45:67:89:ab:cd:ef:fe:dc:ba:98:76:54:32:10'
+		else
+			fingerprint = 'SHA256:0123456789abcdeffedcba98765432100123456789acbdeffedcba9876543210'
+		end
+	end
+end
 
 print ( ("Connectng to %s with username %s\nWill contact %s."):format ( server, username, recipient ) )
 
@@ -145,4 +156,4 @@
 conn:close ()
 print ( "Bye" )
 
--- vim: se ts=4: --
+-- vim: se ts=4 sw=4: --