Volume 17 , Issue 4 , December 2015 , Pages 189-196
Kaziwa Saleh 1 ; Mihran Muhammad 1 ; Khanda Ahmed 1
1 Department of Computer Science, School of Science, University of Sulaimani, Sulaimani, Kurdistan Region - Iraq
Nowadays steganography plays an important role in information security. There are
various techniques to apply steganography; one such technique is Least Significant
Bit (LSB). Due to consecutive embedding of data, LSB is highly vulnerable to data
retrieval and manipulation. This study proposes a mixture between Rubik’s cube
principle to scramble the audio data, and a modified LSB technique to hide the secret
data. The modified LSB technique includes embedding using only irredundant bits of
binary representation of each character in the secret message, and hiding in the lowest
sample between two consecutive samples of the cover audio. The used technique
makes the retrieval of secret message harder because it adds two levels of protection
(scrambling, and hiding in the lowest sample) against the attempts of obtaining data;
and makes the embedded data imperceptible.