International Journal of Computer Science and Mobile Computing (IJCSMC)
In the past few years a new generation of mobile messaging systems has been developed in conjunction with the explosive growth in the use of Smartphone. As this technology enabling for accessing Internet based services, the new-generation the messaging applications was directed to play the role of traditional text messaging Short Message Service (SMS). Such applications require only the user's phone number for registration. Unfortunately, these applications do not provide a built-in support for any security feature. Sometime, the basic security features (e.g., authentication and confidentiality between the communicators) must be ensured in messaging service.