Giving Hash, it is used as encryption options.

Author: satoryu

lib/net/ldap.rb

@@ -590,6 +590,7 @@ def authenticate(username, password)
   #   }
   def encryption(args)
     return if args.nil?
+    return @encryption = args if args.is_a? Hash
 
     case method = args.to_sym
     when :simple_tls, :start_tls