Scalable authentication for integration server

The paper deals with the scalable authentication schemes for a integration server. The integration server is essentially a cloud system and provides services to the users according to the model Software as a service. Our goal is to propose a new authentication solution for special devices that are accessing to the server. These devices represent mostly computationally limited devices such as Electronic security systems (ESS) and Fire Alarm Systems (FAS). The proposed solution ensures authentication, confidentiality and the integrity of transmitted data. We have proposed the solution of three basic authentication schemes which are based on a challenge-response mechanism. The proposed schemes are denoted as light authentication, middle authentication and robust authentication. The schemes differ in security, computational and complexity. Moreover, we have implemented our proposals as a proof-of-concept application and we have tested this solution.