International Journal of Computer Applications
SMS/multimedia messages are one of the popular ways of communication. Sending an SMS/MMS is cheap, fast and simple. Because of mobile networks attack or smartphones hackers, the GSM networks are not secure, so that all information or SMS/MMS messages are vulnerable. This paper describe an android application that helps the user to encrypt the message (SMS/Multimedia files) before it is transmitted over the mobile network. The new idea of the program is to transmit encrypted messages and multimedia files via mobile networks or the internet as an alternative mean.