# File openssl/lib/openssl/x509.rb, line 30
      def create_ext_from_array(ary)
        raise ExtensionError, "unexpected array form" if ary.size > 3 
        create_ext(ary[0], ary[1], ary[2])
      end

# File openssl/lib/openssl/x509.rb, line 42
      def create_ext_from_hash(hash)
        create_ext(hash["oid"], hash["value"], hash["critical"])
      end

# File openssl/lib/openssl/x509.rb, line 35
      def create_ext_from_string(str) # "oid = critical, value"
        oid, value = str.split(/=/, 2)
        oid.strip!
        value.strip!
        create_ext(oid, value)
      end

# File openssl/lib/openssl/x509.rb, line 22
      def create_extension(*arg)
        if arg.size > 1
          create_ext(*arg)
        else
          send("create_ext_from_"+arg[0].class.name.downcase, arg[0])
        end
      end