How to guarantee secured transactions with QoS and real-time constraints

A growing number of systems are highly connected and distributed over the internet. These systems require innovative software services and infrastructures in order to guarantee security and reliability. This issue has a particular relation with a wide range of topics such as real-time scheduling and encryption with Quality of Service constraints which are the main interests of this paper. The proposed cryptosystem has acceptable level of security but it is at least 41 times faster than the AES algorithm.