Date Added: Sep 2013
Recently, the usage of mobile phones around the world is growing more and more. Short Message Service (SMS) is one of the most important applications due to its easy way to send and receive messages from users to users. There have been many transmission protocols aiming to make sure secure and effective transferring in the SMS. Some of them are based on symmetric algorithms, while others are based on signature encryption or public key infrastructure. However, all of these existing protocols lack sufficient security or high efficiency.