This paper evaluates the security of wireless communication network based on the fuzzy logic in Mat lab. A
new algorithm is proposed and evaluated which is the hybrid algorithm. We highlight the valuable assets in
designing of wireless network communication system based on network simulator (NS2), which is crucial to
protect security of the systems. Block cipher algorithms are evaluated by using fuzzy logics and a hybrid
algorithm is proposed. Both algorithms are evaluated in term of the security level. Logic (AND) is used in
the rules of modelling and Mamdani Style is used for the evaluations