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Automatic Key Update Mechanism for Lightweight M2M Communication and Enhancement of IoT Security:A Case Study of CoAP Using Libcoap Library - 2022

Automatic Key Update Mechanism for Lightweight M2M Communication and Enhancement of IoT Security:A Case Study of CoAP Using Libcoap Library

Research Area:  Internet of Things

Abstract:

The ecosystem for an Internet of Things (IoT) generally comprises endpoint clients, network devices, and cloud servers. Thus, data transfers within the network present multiple security concerns. The recent boom in IoT applications has accelerated the need for a network infrastructure that provides timely and safe information exchange services. A shortcoming of many existing networks is the use of static key authentication. To enable the use of automatic key update mechanisms in IoT devices and enhance security in lightweight machine-to-machine (M2M) communications, we propose a key update mechanism, namely, double OTP (D-OTP), which combines both one-time password (OTP) and one-time pad to achieve an IoT ecosystem with theoretically unbreakable security. The proposed D-OTP was implemented into the Constrained Application Protocol (CoAP) through the commonly used libcoap library. The experimental results revealed that an additional 8.93% latency overhead was required to obtain an unbreakable guarantee of data transfers in 100 CoAP communication sessions.

Keywords:  

Author(s) Name:  Wen-Chung Tsai, Tzu-Hsuan Tsai, Te-Jen Wang and Mao-Lun Chiang

Journal name:   Sensors

Conferrence name:  

Publisher name:  MDPI

DOI:  10.3390/s22010340

Volume Information:   Volume 22 Issue 1