Research scholars working in the area of security protocols for communication will find this book as a handy reference guide. Software and hardware engineers, who work specifically in the area of communication protocols, will find this book a useful resource as all the security protocols it covers are compared and compiled at one platform, thus ensuring their proper utilization. In addition, gradate and post-graduate students will find this book an ideal guide in courses on Electronics and Communication Engineering, Telecommunication Engineering, Network Engineering, Computer Science and Engineering and Information Technology.