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UEC Int’l Mini-Conference No.52 69

Realization of Secure Communication in Low-power RISC-V

System-on-Chips for IoT Applications

Tuan-Kiet DANG , Trong-Thuc HOANG, Cong-Kha PHAM
∗
Department of Computer and Network Engineerings
The University of Electro-Communications
Tokyo, Japan

Keywords: RISC-V, System-on-Chip, Secure Communication, Hardware Security

Abstract
In an Internet-of-Thing network, security is a crucial aspect of communication between numerous
sensor devices and the server. A safe communication channel reduces the risk of eavesdropping and
tampering with the sensor data from unauthenticated parties. Moreover, a highly secure communication
protocol ensures data integrity and privacy in a massive network. However, IoT endpoint devices,
as their nature, are limited in resources and computation efficiency, meanwhile, the mathematical
foundation of highly secure communication demands extensive computational costs. Following the
trend of applying free and open-source computer architecture, this research aims to develop a well-
rounded RISC-V system to leverage the cost of secure communication and low power demands for IoT
devices. To achieve the target, problems to be solved include: (a)research for a lightweight approach
for secure communication (b)developing robust and low-cost cryptography primitives (TRNG, PUF,
etc.), (c)reducing the computation cost of cryptography algorithms, (d)connecting the pieces to create
a trusted execution environment.

∗
The author is supported by (MICH) MEXT Scholarship.