An approach to Elliptical Curve Cryptography to implement Multilevel Access Control in Defence

Currently, mobile phones are not only used for formal communication but, also for sending and receiving sensitive information. Sending a message is easy, quick and inexpensive. However, protecting the messages from known attacks like man-in-the-middle attack, reply attack and non-repudiation attack is very difficult. Government and Military Organization have also started using messaging for quick and fast actions. The defence messaging system takes a message and forwards it to the intended recipients or parties based on the message criteria for critical action. This system should provide security assistance and should be manageable by Central Administration Authority. The primary goal of this research is to develop a Multilevel Access Control for Defence Messaging System using Elliptical Curve Cryptography. The system developed is secure, multisite and allows for Global communication using the inherent properties of Elliptical Curve Cryptography It provides a greater security with less bit size and it is fast when compared to other schemes. The implementation suggests that it is a secure system which occupies fewer bits and can be used for low power devices.