Using the following matrix {[1,2,3,4,5],[6,7,8,9,10],[11,12,13,14,15],[16,17,18,19,20],[21,22,23,24,25]}
a. Using direct chaotic one dimension method to convert the plain text to stego text (hello ahmed)?
b. Using direct chaotic two-dimension method to convert the plain text to stego text?