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Secure Service Proxy: A CoAP(s) Intermediary for a Securer and Smarter Web of Things

Ghent University - imec, IDLab, Department of Information Technology, Technologiepark Zwijnaarde 15, B-9052 Ghent, Belgium
Author to whom correspondence should be addressed.
Sensors 2017, 17(7), 1609;
Received: 21 May 2017 / Revised: 30 June 2017 / Accepted: 6 July 2017 / Published: 11 July 2017
(This article belongs to the Section Sensor Networks)
PDF [4765 KB, uploaded 11 July 2017]


As the IoT continues to grow over the coming years, resource-constrained devices and networks will see an increase in traffic as everything is connected in an open Web of Things. The performance- and function-enhancing features are difficult to provide in resource-constrained environments, but will gain importance if the WoT is to be scaled up successfully. For example, scalable open standards-based authentication and authorization will be important to manage access to the limited resources of constrained devices and networks. Additionally, features such as caching and virtualization may help further reduce the load on these constrained systems. This work presents the Secure Service Proxy (SSP): a constrained-network edge proxy with the goal of improving the performance and functionality of constrained RESTful environments. Our evaluations show that the proposed design reaches its goal by reducing the load on constrained devices while implementing a wide range of features as different adapters. Specifically, the results show that the SSP leads to significant savings in processing, network traffic, network delay and packet loss rates for constrained devices. As a result, the SSP helps to guarantee the proper operation of constrained networks as these networks form an ever-expanding Web of Things. View Full-Text
Keywords: CoAP; DTLS; REST; IoT; WoT; proxy; 6LoWPAN; CoRE; LLN CoAP; DTLS; REST; IoT; WoT; proxy; 6LoWPAN; CoRE; LLN

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Van den Abeele, F.; Moerman, I.; Demeester, P.; Hoebeke, J. Secure Service Proxy: A CoAP(s) Intermediary for a Securer and Smarter Web of Things. Sensors 2017, 17, 1609.

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