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SeCon-NG: Implementing a lightweight cryptographic library based on ECDH and ECDSA for the development of secure and privacy-preserving protocols in contiki-NG

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publication35th Annual ACM Symposium on Applied Computing, SAC 2020
Number of pages3
ISBN (Electronic)9781450368667
Publication statusPublished - 30 Mar 2020
Publication typeA4 Article in a conference publication
EventACM Symposium on Applied Computing -
Duration: 1 Jan 1900 → …


ConferenceACM Symposium on Applied Computing
Period1/01/00 → …


There is no doubt that the Internet of Things (IoT) has the power to change our world and drive us to a complete social evolution. In business and industry, there are thousands of IoT use cases and real-life IoT deployments across a variety of sectors (e.g. industry 4.0 and smart factories, smart cities, etc.). However, due to the vastly resource constrained nature of the devices used in IoT, implementing secure and privacy-preserving services, using for example standard asymmetric cryptographic algorithms, has been a real challenge. The majority of IoT devices on the market currently employ the use of various forms of symmetric cryptography such as key pre-distribution. The overall efficiency of such implementations correlate directly to the size of the IoT environment and the deployment method. In this paper, we implement a lightweight cryptographic library that can be used to secure communication protocols between multiple communicating nodes without the need for external trusted entities or a server. Our implementation is based on modifying the Elliptic-Curve Diffie-Hillman (ECDH) and Elliptic Curve Digital Signature Algorithm (ECDSA) components of the Tinycrypt cryptographic library. This work focuses on extending the functionalities of the User Datagram Protocol (UDP) broadcast application on the Contiki-NG Operating System (OS) platform.

ASJC Scopus subject areas


  • Contiki-NG, Elliptic curve cryptography, Key distribution, Lightweight cryptography, Privacy, Wireless sensor networks

Publication forum classification

Field of science, Statistics Finland