Open Access

ARTICLE

Two-Stage High-Efficiency Encryption Key Update Scheme for LoRaWAN Based IoT Environment

Kun-Lin Tsai^1,2,*, Li-Woei Chen³, Fang-Yie Leu^4,5, Chuan-Tian Wu¹

1 Department of Electrical Engineering, Tunghai University, Taichung, 407, Taiwan
2 Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, 407, Taiwan
3 Department of Computer and Information Sciences, Chinese Military Academy, Kaohsiung, 830, Taiwan
4 Department of Computer Science, Tunghai University, Taichung, 407, Taiwan
5 Emergency Response Management Center, Industry-Academia Collaboration and University Extension Division, Ming-Chuan University, Taipei, 111, Taiwan

* Corresponding Author: Kun-Lin Tsai. Email: