ABSTRACT
There are many ways that deliver images through the use of the public network, as this network is considered one of the most vulnerable because it is open to anyone to use. The risks and threats are high when sending confidential images over the public network, where the messages sent can be exposed to the risks of theft, modification or deletion and other harmful risks. The solution lies in the use of masking methods by hiding secret images through the audio file and sending them over the network. This process takes place through several main steps, starting with image compression using Geometric Mean of Pairwise Ratio (GMPR) technology, followed by encryption using the Advanced Encryption Standard (AES) algorithm, and then the process of hiding the audio data by substitution and fitting for Least Significant Bits (LSB). The embedding process of the encoded image bits is done by inserting them into the various variable LSB layers according to the format adopted for the adopted method. Through the results obtained, we find that there is no significant difference between the stego-audio that contains the encoded images and the original audio file.
