ADD: found a BCARD KeyB on the net. ref: http://irq5.io/2013/04/13/decoding-bcard-conference-badges/

client/default_keys.dic

@@ -89,4 +89,5 @@ fc0001877bf7,--RKFÖstgötaTrafikenKeyA
 44ab09010845,-- hotel system
 85fed980ea5a,-- hotel system
 314B49474956,--VIGIK1KeyA
-564c505f4d41,--VIGIK1KeyB
+564c505f4d41,--VIGIK1KeyB
+f4a9ef2afc6d,--BCARD KeyB

client/lualibs/mf_default_keys.lua

@@ -172,6 +172,11 @@ local _keys = {
 	 --]]
 	 '314B49474956',
 	 '564c505f4d41',
+	 
+	 --[[
+	 BCARD keyB
+	 --]]
+	 'f4a9ef2afc6d',
 }
 
 ---