Someone

                key = (BEncodedString)BEncodedValue.Decode(reader);         // keys have to be BEncoded strings

                if (oldkey != null && oldkey.CompareTo(key) > 0)
                    if (strictDecoding)
                        throw new BEncodingException(String.Format(
                            "Illegal BEncodedDictionary. The attributes are not ordered correctly. Old key: {0}, New key: {1}",
                            oldkey, key));

                oldkey = key;
                value = BEncodedValue.Decode(reader);                     // the value is a BEncoded value
                dictionary.Add(key, value);