[Retracted] CLD-Net: A Network Combining CNN and LSTM for Internet Encrypted Traffic Classification

Algorithm 1

Preprocessing algorithm.

	Input: raw network traffic dataset ; number of traffic classes ;
	Output: packet matrix ;
(1)	for each do
(2)	Randomly select consecutive 10 packets in ;
(3)	10 consecutive packets consist a flow , that is, the number of is ;
(4)	Randomly divide the into a training set and a testing set in proportion; Traffic split;
(5)	for each do
(6)	for each packet do
(7)	Trim and uniform length of 256 bytes, payload ; Traffic clean;
(8)	Recombine ; Traffic recombination;
(9)	Generate the grayscale image format to get the packet matrix, ; Traffic conversion;
(10)	end for;
(11)	end for;
(12)	end for;
(13)	return Packet matrix;