In a world full of speed, timing is a huge factor and affects the whole life processes, especially in the communications era. The connectivity between humans becomes easier and necessary in their lives, the availability of the connecting devices and the ease of use of these devices help the users to be connected with each other in a very easy and simple way, in the other hand the needed security in this communication platform is mandatory, especially when we are talking about the latest communication generation of mobile, the 5th generation of mobile communication is intended to be available in the world at the beginning of 2020, it is tested and deployed in some advanced countries, but with the huge speed that this generation provides, a remarkable amount of threats occurs and some vulnerabilities have been figured out, the needed of a security platform is mandatory, in our research we are going to explore the mobile generations briefly and study deeply the 5th generation with their aspects, strategies, threats and their countermeasure, over the two types of security solutions (Cryptographic and non-cryptographic solutions), in our research we will study briefly those two solutions with the available countermeasure against the threats that they cover, and we will propose an enhanced cryptographic algorithm with a lightweight and robust stream cipher scheme for the 5th generation of mobile communication with the main component needed to establish a secured platform with a fast processing algorithm.