A Secure and Efficient Smartphone Payment Scheme in IoT/Cloud Environments

In IoT/Cloud environments, to provide an efficient and flexible payment service is very important since the client/device may not have a large storage and computation capability to finish the payment process. In these environments, any thin client/device may issue a service request to the cloud. For the fast progress of smartphone systems, a smartphone can help the client/device to finish the payment process with the help of the carrier. Although the smart phone may have more storage and computation capability than the client/device, the computation ability is also restricted. In this paper, in order to provide an efficient payment and authentication service framework in the IOT/Cloud environments, we propose a secure and efficient smartphone payment scheme in IoT/Cloud environments. Our proposed scheme can satisfy the properties including low communication and computation cost, no time synchronization problem, unforgeability, non-repudiation, and integrity. Also our scheme can achieve the security requirements including mutual authentication, session key agreement, and preventing all various well-known attacks.