Author(s)

Amr M. Kishk¹, Nagy W. Messiha², Nawal A. El-Fishawy³, Abd-Elrahman A. Alkafs⁴, Ahmed H. Madian⁵

¹Reactor Department, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
²Electronics and Communication Engineering, Faculty of Electronic Engineering (FEE), Menouf, Egypt.
³Computer Engineering, Faculty of Electronic Engineering (FEE), Menouf, Egypt.
⁴Reactor Department, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
⁵Radiation Engineering Department, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.

The trade off between the energy consumption and the quality of the received image should be considered as a main point in the techniques design in Wireless Sensor Network (WSN). This paper analyzes the performance of multiple image encryption algorithms with different approaches. And also, it introduces two proposed modulation techniques to enhance the performance of WSN. These two techniques merge both the image and the audio in one signal. The merging process enhances the energy consumption data rate. In addition, it removes the effectiveness of the jamming completely from both the reconstructed image and reconstructed audio signal at the receiver. So, the receiver will reconstruct the image without jamming effectiveness. The paper introduces a proposed audio encryption algorithm. The use of encryption algorithms for both image and audio signals with the merging process enhances the security level. Popular metrics are used to compare between these image encryption algorithms and also to show the benefits from these enhancements. The results show the preference of one of these image encryption algorithms to others. And also, the merging process enhances the bit rate to high level.

Chaotic Cryptosystems, Image Encryption Algorithms, Encrypted Audio Samples, Merging Process, Proposed Audio Encryption Algorithm

Kishk, A. , Messiha, N. , El-Fishawy, N. , Alkafs, A. and Madian, A. (2015) Enhancements in the Security Level for Wireless Sensor Network. Journal of Information Security, 6, 213-228. doi: 10.4236/jis.2015.63022.