-## - if signing is enabled, the password variable is used to unlock the GnuPG
-## private key used for signing; else, you do not need to set the password
-## variable
+## - if signing is enabled, data is signed with the GnuPG private
+## key specified by the signkey variable
+## - the password variable is used to unlock the GnuPG key(s) used
+## for encryption and (optionnal) signing
+##