symetric-key.rar_Symmetric-Key_encryption

clc,clear A=input('Enter the plain text') ASCII=double(A) binary=[] for i=1:numel(ASCII) temp1=dec2bin(ASCII(i)) if(numel(temp1)<8) z=zeros(1,8-numel(temp1)) temp1=[num2str(z) temp1] temp2=[temp1(8) temp1(7) temp1(6) temp1(5) temp1(4) temp1(3) temp1(2) temp1(1)] dec=bin2dec(temp2) end end