A Survey on 6LoWPAN Security for IoT: Taxonomy, Architecture, and Future Directions

Provisioning security to the communications, data, and partaking things in resource-constrained IoT is a huge challenge. Due to the scalability and interoperability among low power-consuming networks, 6LoWPAN is used widely in IoT. However, security schemes used by traditional Internet are proven to be very heavy and power-consuming for resource-constrained devices in 6loWPAN. This paper describes various existing security schemes used in different layers of 6LoWPAN based IoT networks in detail and highlights their pros and cons. We pointed out the issues and challenges of lightweight security mechanisms for IoT to enable the researchers to easily and quickly get into the problem domain. Compared to other relevant works, we emphasize open issues and future directions.