The Internet of Things (IoT), interconnection of huge number of everyday objects, is the future of the scientific world. The increasing amounts of devices with Wi-Fi capabilities allow them to send and receive data. Now-a-days smart phone is with everybody and its usage is sky-rocketing. This gives way to connect anything that can be connected, will be connected and secure sharing of information critical. In this paper, the existing works are analyzed and new architecture for Smart healthcare system is proposed. A neoteric authentication scheme that supplements the security of the smart healthcare system is also proposed.