Lightweight, Dynamic, and Flexible Cipher Scheme for Wireless and Mobile Networks

The security of Wireless and Mobile Networks (WN, and MN, respectively) is crucial for effective deployment in various areas and applications such as military and business. The existing security solutions are based on static block /stream cipher to ensure Data Confidentiality (DC). These solutions require multi-round function, and consequently a high computing complexity and energy consumption. However, WN or MN has limited resources that prevent their efficient deployment for a long period. To overcome the previous challenge, a new kind of cipher scheme based on a dynamic permutation packets cipher is presented in this paper to ensure the DC requirements with low computation complexity. Theoretical results show that the proposed algorithm has a reduced computational complexity, which can lead to reduce the energy consumption. It is equally important to note that our proposed solution could be adapted for other kinds of networks that employ packet transmission such as vehicular network.