Date Added: Dec 2011
Short Message Service (SMS) and Multimedia Message Service (MMS) has grown in popularity over the years and it has become a common way of communication. SMS is usually used to transport unclassified information, but with the rise of mobile commerce it has become a popular tool for transmitting sensitive information between the business and its clients. By default SMS does not guarantee confidentiality and integrity to the message content. There is no end-to-end security (including authentication, and non-repudiation) in these services. Therefore SMS is not totally secure and reliable. This hinders service providers to provide some services that require communication of high-level security.