Lightweight Cryptography Implementation for Internet of Things Network on FPGA

With the development of modern communication technology, traditional Internet of Things systems could not provide sufficient support for large data flow, hardware resource, power consumption, and security during transmission. Especially when it comes to the Industrial Internet of Things (IIoT), where the limitations of hardware resource and power consumption are more strict; the requirements of network security and hardware security are much higher. This paper implements a User Datagram Protocol (UDP) communication system, which is encrypted with one of the Lightweight Cryptography, Xoodyak. We aim to design a lightweight encrypted communication platform. Compared with a public key encryption system, our implementation costs much less hardware resource and power consumption, while providing excellent side-channel attack (SCA) protection. Besides, when there is a large burst length of data flow, two asynchronous FIFO can restore those data respectively, so our design can maintain throughput and data integrity in extreme cases. Based on the above properties, our design is relatively ideal in IIoT encryption scenarios.