JoWUA

Abstract

Due to the quick increase in number of mobile, ubiquitous, cloud, network and communication applications and studies, many computer and communication systems, wired or wireless, have been released to service their customers (human users or other systems). However, hackers everywhere around the world may attack these systems for some reasons, e.g., stealing one company’s business secrets for another one, penetrating a system to show the achievement of their professional skills, preventing a system from providing its regular/normal services just for fun, etc. To safely guard a system from being attacked or intruded, we need security mechanisms to protect our systems and the information delivered between/among the systems. That is why information security has been an important issue in recent computer and communication research. It is also why this special issue is created. This special issue collects a series of papers that discuss different aspects of emerging security technologies and applications. The focus of the selected articles mainly on technical approaches to prevent a system from being attacked, and on techniques for encrypting messages/information delivered between two communication entities.