On the voice and image data encryption using advanced encryption standard (AES) in counter mode for multimedia broadcasting

In this paper, we provide a potential solution to counter one of the shortfalls of data transmission through wireless channel, such as insecurity, by using the AES block cipher operating in stream mode, more specifically the counter mode (CTR). The approach in this work is to use the counter mode to encrypt audio and image data, to show the feasibility of implementation. The simulation results of the application of encryption and decryption confirm the effectiveness of CTR mode for successful reconstruction of audio and image only with the knowledge correct security key.