Application of point-to-point SMS encryption based on Java ME
基于Java ME的点到点短信加密应用

To keep SMS from interception in transmission, a solution of application of point-to-point SMS encryption based on Java ME was presented. This solution used encrypted SMS to deliver the new key. Considering the characteristics of SMS, effective measures were adopted to ensure that both sides could correctly communicate with each other through SMS. The new key SMS and its confirmation SMS were allowed to be sent again in case they were not received. Both sides would continue using the old key if the triplicate lifetime of the new key had elapsed and the new key was not updated. The means of solving special cases that occurred in the course of key updating were specified. Meanwhile, these measures were also analyzed in terms of security and reliability, and cases in need of attention were pointed out.